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TEXTRON Lycoming AIRCRAFT ENGINES
O-360-A4P Wide Cylinder Flange Crankcase Model Engines
PARTS CATALOG PC-306-9
NOVEMBER 1995
Lycoming O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
This illustrated parts catalog contains a complete parts listing for the Textron Lycoming O-360-A4P wide cylinderflange crankcase model aircraft engines.
Major assembly and sub-assembly parts of the engines are listed in the Group Assembly sections in the generalsequence of engine build up.
A Service Kits section and Oversize and Undersize Parts List are included to aid in ordering parts as necessaryduring overhaul.
The Numerical Index is provided for convenience in finding parts when only the part number is known.
Parts coverage of Vendor Accessories used on Textron Lycoming engines may be found in the appropriateVendor's Parts Catalog. A list of addresses of where to obtain these publications appears in the latest edition of
Service Letter No. L114.
NOTE
The illustrations, pictures and drawings shown in the publication are typical of the subjectmatter they portray.
This catalog, when used in conjunction with the appropriate overhaul manual, shall be used for parts identifica-tion only. Under no circumstances shall this catalog be used as an assembly or installation document
Any reference in this document to a suppliers/parts manufacturer's product, by name, trademark, part numberor other description is solely for the purposes of identification and does not indicate or infer that Textron Lycomingaccepts responsibility for quality control and/or airworthiness of parts which do not pass through the TextronLycoming quality control system.
All Textron Lycoming publications will bear the copyright notice © TextronLycoming 1986, "All Rights Reserved", and all Textron Lycoming publicationsare to be considered copyrighted and may not be reproduced without per-mission of the company.
SERVICE BULLETINS, INSTRUCTIONS AND LETTERS
Although the information contained in this parts catalog is up-to-date attime of publication, users are advisedto procure current information through all Textron Lycoming distributors or from the factory by subscription.Consult the latest edition of Service Letter No. L114 for subscription information.
HOWTO ORDER PARTS
In ordering parts for your engine, observe the following instructions which will expedite shipment of correctparts required without delay.
a. Always specify the model and serial number of your engine.
b. Always specify part number, nomenclature and quantity required.
i
Lycoming O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
TABLE OF CONTENTS
SECTION PAGE
Introduction ............................................................................................................................................................... iT able of Contents ..................................................................................................................................................... iiOversize and Undersize Parts Listing ...................................................................................................................... iii
1. CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPCrankcase Assembly ..................................................................................................... 1-1Oil Level Gage Assembly and Crankcase Related Parts ........................................ ........................ 1-3Crankshaft Assembly and Related Parts ............ ............................................................ 1-5Crankshaft Idler Gears, Tachometer Drive and Camshaft ................................................................ 1-7Crankcase Attaching Parts ................................................................................................................................ 1-9
2. ACCESSORY HOUSING AND RELATED PARTSAccessory Housing Assembly ............................................................................................................................ 2-1Oil Pump and Accessory Housing Attaching Parts ........................................ ........................ 2-3Propeller Governor Drive and Fuel Pump Covers, Vacuum Pump Drive and Cover ........................................ 2-5Oil Filter Assembly, Oil Cooler Bypass Valve and Breather Fitting .................................................................. 2-9
3. CYLINDER, PISTON AND VALVE TRAINConnecting Rods, Pistons and Ring Assemblies ........................................ .......................... 3-1C ylinder A ssem bly ............................................................................................................................................. 3-3C ylinder R elated Parts ....................................................................................................................................... 3-5Valve Assembly ......................................................................................................... 3-7Cylinder Head Drain Tubes, Intercylinder Cooling Baffles and Rocker Box Covers ......................................... 3-9
4. IGNITION SYSTEMMagnetos, Magneto Drives, Harnesses and Spark Plugs ................................................................................. 4-1
5. ELECTRICAL SYSTEMPrestolite Starter and Attaching Parts ................................................................................................................ 5-1Sk -Tec Starter and A ttaching Parts ............................................................................................................................. 5-2Generator Mounting and Attaching Parts ........... .................................................... ........................ 5-3
6. OIL SUMP AND INDUCTION SYSTEMOil Sump Assembly and Oil Suction Screen ........................................ .......................... 6-1Intake Pipes and A ttaching Parts ...................................................................................................................... 6-3Carburetor Assembly ....................................................................................................... 6-4
7. SERVICE KIT SECTION ................................................................................................................... 7-1
8. NUMERICAL INDEX ........................................................................................................................ 8-1
ii
61681666106679669796720577205872155-S742307424175656-S75657-SLW-11997LW-13521LW-13792LW-13884LW-16711STD-106514H2195018A19441
Part No. Description
GUIDEBUSHINGINSERTDOWELSEATSEATBUSHINGGUIDERINGBUSHINGBUSHINGSEALBEARINGSEALBEARINGBEARINGDOWELRINGBEARING
X
OversizeP02 P05 P10 P15 P20 P30 P40 P50.002 1.005 1.010 .015 .020 .030 1.040 .050See Latest Edition of Service Instruction No. 1256.
X XX
XSee Latest Ec
X
XSee Latest Ec
X
XX
ition c
XXX
ition c
I XSee Latest Edition of Service Ins
X
XX x X
XfServ
X
TEXTRON Lycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
Oversize and Undersize Parts Listing
UndersizeM03 M06 M10.003 1 .006 1.010
XXXe Instce
X
X
ruction No. 12
X
Xce Ins
56.
II
of Serv truction No. 1324.
ruction No. 1324.
X
X
X
X
X
X
X
X
X
X XX
* Also available in P10 oversize.
In addition to the above, studs are available in P03, P07 & P12.
NOTE
When ordering oversize and undersize parts, be sure to specify the requiredoversize and undersize dimension along with the proper part number. Forexample, to order bearing LW-13884 in .003 undersize, order part numberLW-13884-M03. Oversize code letter is "P" while undersize code letter is"M". These letters are then followed by the number designating the size inthousandths of an inch.
iii
O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPCRANKCASE ASSEMBLY
FIG.REF.
1PART
NUMBER
QTY.PER
ASSY.DESCRIPTION
123456789
1011121314
11B20061-1SH7515450-1538-1338D-1731C-1231C-13STD-557STD-514STD-1623LW-13793697961102STD-1339
CRANKCASE ASSEMBLY (See Note)STUD, 1/2-13 x 10-1/32 longSTUD. 1/2-13 x 1-7/8 longSTUD, 3/8-16 x 1-5/8 longSTUD, 3/8-16 x 2-1/8 long, drilledSTUD. 5/16-18 x 1-1/2 longSTUD, 5/16-18 x 1-5/8 longDOWEL, 1/2 dia. x 11/16 long, hollowDOWEL, 5/16 dia. x 1/2 longINSERT, 1/4-20 Helicoil x 3/8 longSTUD, 5/16-18 x 15/16 long, drilledDOWEL, Crankshaft bearing
PLUG. 1/8-27 NPT, Allen headPLUG, 1/16-27 NPT, Allen head
128
161212221264
NOTE
This part is not available as a service item. Refer to Service Kits, Section 7,for applicable Crankcase Assembly and Governor Stud Kit Part Number.
1-1
1
Lycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
11
2-
Figure 1. CRANKCASE ASSEMBLY
1-2
Lycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPOIL LEVEL GAGE ASSEMBLY AND CRANKCASE RELATED PARTS
FIG.REF.
2123456
789
10
11
121314
PARTNUMBER
757677205974065LW-147801028-B61084*68668*77467*LW-11713*LW-18085*06E19769-1.2577808LW-16711LW-1388418A 19441LW- 13792**LW-11997**720757209172877
DESCRIPTION
QTY.PERASSY.
TUBE. Oil level gage. longGASKET. Oil level gageRING. Ol level gage sealGAGE ASSEMBLY. Oil levelBALL. 11/16 diameterSPRING. Oil pressure relief valveSPRING, Oil pressure relief valveSPRING. Oil pressure relief valveSPRING. Oil pressure relief valveSPRING. Oil pressure relief valveGASKET. 1-1/4 I.D. x 1-1/2 O.D. x 3/32 annularVALVE ASSY.. Oll pressure relief valve. adi.BEARING. CrankshaftBEARING, Crankshaft. frontBEARING. Crankshaft. front (alternate)SEAL. Crankshaft oil. solidSEAL. Crankshaft oil. splitSEAL. Oil 3/32 section x 7/16 I.D.RING. Oil seal. 23/64 I.D. x 7/64 dia.BODY, Hydraulic tappet
11111111111142211228
* Select spring to give a minimum of three threads exposed on adjusting screw to allow fieldadjustment. Reference latest revision of Textron Lycoming Table of Limits SSP-1776, PartI for spring Identification.
** See latest edition of Textron Lycoming Service Instruction No. 1324 for installation.
1-3
O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
Figure 2. OIL LEVEL GAGE ASSEMBLY AND CRANKCASE RELATED PARTS
1-4
TEXTRON Lycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPCRANKSHAFT ASSEMBLY AND RELATED PARTS
FIG.REF.
312
3456789
PARTNUMBER
13B27135STD- 1065
75657-S72155-S75656-S13S19646*LW-18639STD-2213LW-16064
72566
DESCRIPTION
CRANKSHAFT AND BUSHING ASSEMBLYDOWEL, Stepped. 5/16 & 1/4 dia. x
35/64 longBUSHING, Propeller flange, indexingBUSHING, Propeller flange, shortBUSHING. Propeller flange. long
GEAR. CrankshaftLOCKPLATE, Crankshaft gearSCREW. 5/16-24 x 1.00 longSUPPORT ASSY.. Starter ring gear.
12/14 pitchGEAR, Starter ring
QTY.PER
ASSY.
1
1114111
1110
* See latest edition of Textron Lycoming Service Bulletin No. 475 for proper installation.
1-5
O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
10
2
Figure 3. CRANKSHAFT ASSEMBLY AND RELATED PARTS
1-6
O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPCRANKSHAFT IDLER GEARS, TACHOMETER DRIVE AND CAMSHAFT
FIG.REF.
4123456789
10
PARTNUMBER
749967730976121LW-18667STD-2231LW-13796LW-31 H0.88STD-2168LW-1884076118
DESCRIPTION
GEAR ASSY., Crankshaft Idler, plainBUSHING, Crankshaft idler gear
SHAFT ASSY.. TachometerPIN. 3/16 dia. x 2-21/64 long
RING. Internal retainingSHAFT. Crankshaft idler gearBOLT. 5/16-18 x 7/8 long, hex. hd., dr.NUT. 5/16-18 NC-3 slotted shearCAMSHAFT ASSEMBLY
SPACER, Tach. shaft centering
QTY.PER
ASSY.
2211123111
1-7
TEXTRONLycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
Figure 4. CRANKSHAFT IDLER GEARS, TACHOMETER DRIVE AND CAMSHAFT
1-8
O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
CRANKCASE, CRANKSHAFT AND CAMSHAFT GROUPCRANKCASE ATTACHING PARTS
FIG.REF.
5PART
NUMBER
QTY.PER
ASSY.DESCRIPTION
123456789
101112131415161718
LW-25-1.50STD-860803LW-25-1.75LW-25-1.13STD-160STD-1411LW-25S 1.50STD-8STD-1409STD-33AN960-616LSTD-872AN6-34ASTD-33STD-678STD-59676220
BOLT. 1/4-20 x 1-1/2 long, hex. hd.WASHER, 1/4 plainSTRAP. LiftingBOLT. 1/4-20 x 1-3/4 long, hex. hd.BOLT. 1/4-20 x 1-1/8 long, hex. hd.WASHER, 1/4 lock, internal teethNUT, 1/4-20 plainBOLT, 1/4-20 x 1-1/2 long, hex. hd,. dr. endWASHER, 1/4 plain (Max. 9)NUT. 1/4-20 slotted shearWASHER, 3/8 plain, 1/16 thickWASHER, 3/8 plain, 1/32 thickNUT. 3/8-24 slottedBOLT, 3/8-24 x 3-37/64 long. hex. hd.WASHER, 3/8 plainWASHER, 3/8 lock, internal teethNUT. 3/8-24 plainSTUD, 1/2-20 x 10-45/64 long
819113
1293
AR331122224
1-9
TEXTRON Lycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
1,2,6,7
32,4,6,7 / 11,12,13
\
1,2,6,7 8,9,10
Figure 5. CRANKCASE ATTACHING PARTS
1-10
Lycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
ACCESSORY HOUSING AND RELATED PARTSACCESSORY HOUSING ASSEMBLY
FIG.REF.
612345678
PARTNUMBER
7381821A21533-0425C-2231C-1231CD-1731C-191102STD-784
DESCRIPTION
GASKET. Accessory housingHOUSING ASSY.. Accessorv
STUD. 1/4-20 x 2-3/4 longSTUD. 5/16-18 x 1-1/2 longSTIJD. 5/16-18 x 2-1/8 long. drilledSTUD. 5/16-18 x 2-3/8 longPLUG. 1/8-27 NPT. Allen headPLUG, 3/8-18 NPT, Allen head
QTY.PER
ASSY.
I1463241
2-1
6-
TEXTRON Lycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
Figure 6. ACCESSORY HOUSING ASSEMBLY
2-2
TEXTRON Lycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
ACCESSORY HOUSING AND RELATED PARTSOIL PUMP AND ACCESSORY HOUSING ATTACHING PARTS
FIG.REF.
7123456789
1011
PARTNUMBER
7853105K 19423-S *61174STD-35STD-1420LW-14260STD-8STD-160LW-25-0.94LW-25-1.13LW-25-1.50
DESCRIPTION
BODY. Oil pumpOIL PUMP IMPELLER KITSHAFT. Oil pump driveWASHER. 5/16 plainNUT. 5/16-18 slottedSEAL. Tachometer drive, oilWASHER. 1/4 plainWASHER. 1/4 lock. Internal teethBOLT. 1/4-20 x 15/16 long. hex. hd.BOLT. 1/4-20 x 1-1/8 long. hex. hd.BOLT, 1/4-20 x 1-1/2 long, hex. hd.
QTY.PER
ASSY.
111331
1212912
* See latest edition of Textron Lycoming Service Bulletin No. 524.
2-3
6
TEXTRONLycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
7,8,9
7,8,11
2
7,8,10-
7,8,9
4
Figure 7. OIL PUMP AND ACCESSORY HOUSING ATTACHING PARTS
2-4
Lycoming O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
ACCESSORY HOUSING AND RELATED PARTSPROPELLER GOVERNOR DRIVE AND FUEL PUMP COVERS,
VACUUM PUMP DRIVE AND COVER
FIG.REF.
8PART
NUMBER
QTY.PER
ASSY.DESCRIPTION
123456789
10
111213141516171819202122
6955169106STD-35STD-475STD-1410STD-783*6118361098STD-177406A19956
7297071596831360430STD-8STD-160STD-14116009665098STD-33STD-678LW-38-0.75
GASKET. Accessory drive adapterCOVER, Governor drive adapter padWASHER, 5/16 plainWASHER. 5/16 lock, internal teethNUT. 5/16-18 plainPLUG. 1/4-18 NPT, Allen headGASKET, Accessory adapterADAPTER ASSY., Vacuum pump
PIN. 1/8 dia. x 1/4 longOIL SEAL. 7/8 I.D. x 1-1/2 long O.D. x
5/16 wideGEAR ASSY., Vacuum pump drivenWASHER. Accessory drive gearGASKET, Vacuum pumpCOVER, Vacuum pumpWASHER. 1/4 plainWASHER, 1/4 lock. internal teethNUT. 1/4-20 plainGASKET. Fuel pumpCOVER, Fuel pumpWASHER, 3/8 plainWASHER. 3/8 lock, internal teethBOLT, 3/8-16 x 3/4 long
1111144411222
114441111
* Used when no propeller governor oil line is installed.
2-5
15
TEXTRON Lycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
11-
-6
Figure 8. PROPELLER GOVERNOR DRIVE AND FUEL PUMP COVERS,VACUUM PUMP DRIVE AND COVER
2-6
Lycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
ACCESSORY HOUSING AND RELATED PARTSOIL FILTER ASSEMBLY, OIL COOLER BYPASS VALVE AND BREATHER FITTINGS
FIG.REF.
9123456789
101112
PARTNUMBER
62817611736951006E19769-0.63STD-8STD-185653E221447651006E 19769-0.6362417STD-78471140
DESCRIPTION
SCREEN ASSY.. Oil pressureGASKET, Oil pressure housingHOUSING. Oil pressure screenGASKET. 7/8 O.D. x 5/8 I.D. x 3/32 annularWASHER. 1/4 plainSCREW. 1/4-20 x 1.00 long, hex. hd.VALVE ASSY.. Temp. control oil cooler bypass
GASKET. Valve assemblyGASKET. 7/8 O.D. x 5/8 I.D. x 3/32 annularPLUG. Oil cooler bvtassPLUG. 3/8-18 NPT. Allen headFITTING, Breather
QTY.PER
ASSY.
I1II144111I
21
2-7
11
TEXTRON Lycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
9
2
3-
87- 11-
4
Figure 9. OIL FILTER ASSEMBLY, OIL COOLER BYPASS VALVE AND BREATHER FITTINGS
2-8
Lycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
CYLINDER, PISTON AND VALVE TRAINCONNECTING RODS, PISTONS AND RING ASSEMBLIES
FIG.REF.
10123456789
10
PARTNUMBER
LW-11750-SLW-1392375061LW-12186LW-1352175089LW-14077*LW-11775*7424114H21950
DESCRIPTION
CONNECTING ROD ASSEMBLYBUSHING; Connecting rod. upperBOLT. Connecting rodNUT. Connecting rod bolt
BEARING. Connecting rodPISTON. Compression ratio. 8.50:1PIN. PistonPLUG. Piston Din (piloted)RING. Piston compressionRING, Piston, oil regulating, expander type
QTY.PER
ASSY.
4488844884
* See latest edition of Textron Lycoming Service Instruction No. 1267.
3-1
O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
4
6
Figure 10. CONNECTING RODS, PISTONS AND RING ASSEMBLIES
3-2
Lycoming O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
CYLINDER, PISTON AND VALVE TRAINCYLINDER ASSEMBLY
FIG.REF.1 1
123456789
1011121314151617
PARTNUMBER
LW-12427720577205861681*74230*66796STD-135331C-1225C-8MS20823-6D66610110277611STD-35STD-475STD-14101102**
DESCRIPTION
CYLINDER & HEAD ASSY., NitridedSEAT. Intake valveSEAT. Exhaust valveGUIDE, Valve, intake, flangedGUIDE, Valve, exhaust, flangedINSERT. Spark plug, 18 - 1.5 MMINSERT, No. 10-24 Heli-coil x 3/8 longSTUD, 5/16-18 x 1-1/2 longSTUD, 1/4-20 x 1.00 longELBOW. 45°, 3/8 flared tubeBUSHING, Rocker shaft
PLUG, 1/8-27 NPT Allen headGASKET, Exhaust flangeWASHER, 5/16 plainWASHER, 5/16 lock, internal teethNUT. 5/16-18 plainPLUG, 1/8-27 NPT, Allen head
4444484844
16448884
QTY.PER
ASSY.
* See latest edition of Textron Lycoming Service Instruction No. 1256.
** Additional plugs used when no priming lines are installed.
3-3
TEXTRON Lycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
Figure 11. CYLINDER ASSEMBLY
3-4
O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
CYLINDER, PISTON AND VALVE TRAINCYLINDER RELATED PARTS
FIG.REF.
121
23456789
PARTNUMBER
15F19957-34*15F19957-35*15F19957-36*73437*17F19357**74637LW-13790LW-128927148174887383-BSTD-2090
QTY.PER
ASSY.DESCRIPTION
ROD ASSY., Push (A total of 8 required)ROD ASSY., Push (A total of 8 required)ROD ASSY.. Push (A total of 8 required)ROD ASSY., Push (A total of 8 required)ROCKER ASSY.. Valve
BUSHING. Valve rockerSHAFT, Valve rockerTHRUST BUTTON. Rocker shaftRING, Oil seal, 3/32 dia. x 4-27/32 longSPACER, 33/64 I.D. x 7/8 O.D. x 3/8 thickNUT. 3/8-24 plainNUT, 1/2 -20 plain
ARARARAR
884842
1618
* See latest edition of Textron Lycoming Service Instruction No. 1060 for complete push rodapplication.
** Due to the size of the area where the part number is stamped, the last five digits may be all thatis shown (19357).
3-5
TEXTRONLycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
Figure 12. CYLINDER RELATED PARTS
3-6
Lycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
CYLINDER, PISTON AND VALVE TRAINVALVE ASSEMBLY
FIG.REF.
13123456789
10111213141516171819
PARTNUMBER
73938LW-19001LW-11795LW- 1180065441LW-13323LW- 10077LW-164756000917C2119117C193867829015B21319LW-11485LW-14995LW-12272STD-1411LW-1866170310
DESCRIPTION
VALVE. IntakeVALVE. Exhaust (rotator type)SPRING. Valve. InnerSPRING. Valve. outerSEAT. Valve spring. lower intakeSEAT. Valve spring, lower exhaustSEAT. Valve spring. upper intakeSEAT. Valve spring. upper exhaust (rotator tyDe)KEY. Valve. intakeKEY. Valve. exhaust (rotator type)CAP, Valve stem. exhaust (rotator type)PLUNGER ASSY.. Hydraulic tappetSOCKET, Hydraulic tappetSHROUD TUBE ASSY.. Push rodSPRING. Shroud tubeLOCKPLATE. Shroud tubeNUT. 1/4-20 plainSEAL. Shroud tubeSEAL, Shroud tube
QTY.PER
ASSY.
4488444488488844488
3-7
O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
1213
Figure 13. VALVE ASSEMBLY
3-8
O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
CYLINDER, PISTON AND VALVE TRAINCYLINDER HEAD DRAIN TUBES, INTERCYLINDER COOLING BAFFLES
AND ROCKER BOX COVERS
FIG.REF.
14PART
NUMBER
QTY.PER
ASSY.DESCRIPTION
123456789
101112
STD-684STD-1821LW-15592-5-056875968760687617533971611716107590661247STD- 1925
NIPPLE, Straight. 3/8 I.D. hoseHOSE. 3/8 x 2-1/2 longCLAMP. HoseTUBE ASSY., Cyl. head oil drain, cyl. no. 1TUBE ASSY.. Cyl. head oil drain, cyl. no. 2TUBE ASSY., Cyl. head oil drain, cyls. no. 3 & 4BAFFLE ASSY., IntercvlinderRETAINER. Intercylinder baffleHOOK, Intercylinder baffle retainerGASKET. Rocker box coverCOVER, Rocker boxSCREW, 1/4-20 x 5/8 long, pan. hd., self-locking
44811222244
24
3-9
12
Lycoming O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
11
4,5,6
Figure 14. CYLINDER HEAD DRAIN TUBES, INTERCYLINDER COOLING BAFFLESAND ROCKER BOX COVER
3-10
TEXTRONLycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
IGNITION SYSTEMMAGNETOS, MAGNETO DRIVES, HARNESSES AND SPARK PLUGS
FIG.REF.
151234567
PARTNUMBER
61665STD-71368C1962262224LW-12706LW-1268166GP-OSANN66GC20SFNN67P2040667P2040766M21195STD-475STD-14101182-B7*01P19762-1-43
DESCRIPTION
GEAR. Magneto. imnulse couplingCOTTER PIN. 3/32 dia. x 3/4 longGEAR. MagnetoGASKET. Magneto adapterADAPTER. Magneto. impulse couplingGASKET. MagnetoMAGNETO. Plain Right. Slick Model 4370MAGNETO. Impulse. Left. Slick Model 4371HARNESS ASSY.. Right. Slick Model M-2992HARNESS ASSY.. Left Slick Model M-1795CLAMP. MagnetoWASHER. 5/26 lock, internal teethNUT. 5/16-18 plainSPARK PLUG. Champion (REM37BY)BAG, Magneto harness attaching
QTY.PER
ASSY.
121112111144481
8
9101l12**
* Item No. 12 spark plugs are used in current production only. Additional spark plugs are availablefor this engine. See latest edition of Textron Lycoming Service Instruction No. 1042 for completelisting of all approved spark plugs.
** See page 4-2 for a breakdown of individual parts contained in the magneto and harness attachingparts bag. These parts to be attached by customer per engine line drawing included in each bag.
4-1
P/N 01 P19762-1-43
11
Lycoming O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
Part No.
LW-16266-25-25LW-14060STD-8STD-187476734LW-16266-25-50STD-696STD-1916LW-M-2375
Part Name
CLIP, One wireCLIP, Two wireWASHER, 1/4 plainSCREW, 1/4 -20 x 13/16 longZIP STRAPCLAMP, Four wireWASHER, 1/4 plain (thin)SCREW, 1\4-20 x 1-1/8 longPLATE, Spark plug cable
Qty.
238681432
ATTACHING HARDWARE
Figure 15. MAGNETOS, MAGNETO DRIVES, HARNESSES AND SPARK PLUGS
4-2
Lycoming O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
ELECTRICAL SYSTEMPRESTOLITE STARTER AND ATTACHING PARTS
FIG.REF.
161
PARTNUMBER
LW-15571
STD-35STD-475LW-31-1.16STD-1410
2345
QTY.PER
ASSY.DESCRIPTION
STARTER, 12 volt. 12/14 pitch pinion(MZ-4222)
WASHER. 5/16 plainWASHER, 5/16 lock, internal teethBOLT. 5/16-18 x 1-5/32 long, hex. hd.NUT, 5/16-18 plain
NOTE
14413
See latest edition of Textron Lycoming Service Instruction No. 1154 forcomplete listing of FAA approved starters, generators, alternators, regu-lators and relays.
Figure 16. PRESTOLITE STARTER AND ATTACHING PARTS
5-1
TEXTRON Lycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
FIG.REF.
17
SKY-TEC
PARTNUMBER
ELECTRICAL SYSTEMSTARTER AND ATTACHING PARTS
DESCRIPTION
QTY.PER
ASSY.
12345
31A22110STD-35STD-475LW-31-1.09STD-1410
STARTER. Sky-Tec (149-12HT)WASHER. 5/16 plainWASHER. 5/16 lock. internal teethBOLT. 5/16-18 x 1-3/32 long. hex. hd.NUT, 5/16-18 plain
14413
Figure 17. SKY-TEC STARTER AND ATTACHING PARTS
5-2
O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
ELECTRICAL SYSTEMGENERATOR MOUNTING AND ATTACHING PARTS
FIG.REF.
18123456789
10111213141516
PARTNUMBER
7041973383LW-31-0.9476028STD-35LW-31H0.75STD- 1727LW-31 H0.7577718LW-31 H0.75LW-31S1.16LW-31S1.28STD-35STD- 1420STD-6837B 19774-325
DESCRIPTION
BRACKET. GeneratorLOCKPLATE. 5/16 bolt x 1.00 spacingBOLT. 5/16-18 x 15/16 long, hex. hd.LINK. Alternator adjustingWASHER. 5/16 plainBOLT. 5/16-18 x 3/4 long. hex. hd.WASHER, Plain. 3/4 O.D. x 11/32 I.D. x 1/8 thickBOLT. 5/16-18 x 3/4 long. hex. hd.STRUT, Generator supportBOLT. 5/16-18 x 3/4 long, hex. hd.BOLT. 5/16-18 x 1-5/32 long, dr. hd.BOLT, 5/16-18 x 1-9/32 long. dr. hd.WASHER. 5/16 plainNUT. 5/16-18 slottedCOTTER PIN. 1/16 dia. x 1/2 longBELT, Generator drive
QTY.PER
ASSY.
224111111111
AR221
5-3
TEXTRON Lycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
0
1
1
-3
Figure 18. GENERATOR MOUNTING AND ATTACHING PARTS
5-4
1 Lycoming O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
OIL SUMP AND INDUCTION SYSTEMOIL SUMP ASSEMBLY AND OIL SUCTION SCREEN
FIG.REF.
19123456789
10111213141516
PARTNUMBER
LW-1335378915789146140031C-15STD-91STD-551STD-8STD-160LW-25-0.94LW-25-1.13STD-1411STD-22297048406El9769-1.00LW-12545
DESCRIPTION
GASKET, Oil sumpSUMP ASSEMBLY. Oil
CONNECTION, Intake pipeSTUD. 1/4-20 x 1-3/16 longSTUD, 5/16-18 x 1-7/8 longPLUG. 1/2-14 NPT. Allen hd.
PLUG, 1/2-14 NPT. Sq. hd., drilledWASHER, 1/4 plainWASHER, 1/4 lock, internal teethBOLT. 1/4-20 x 15/16 long, hex. hd.BOLT, 1/4-20 x 1-1/8 long, hex. hd.NUT, 1/4-20 plainPLUG, 1/2 NPT, Allen hd.SCREEN, Oil suctionGASKET, 1.00 I.D. x 1-1/4 O.D. x 3/32 annularPLUG, 5/8 hex. hd. x 1.00-20 thread
1144412
2820142
122111
QTY.PER
ASSY.
6-1
12-
TEXTRON Lycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
12
9
8
-1
8
3
3
1
Figure 19. OIL SUMP ASSEMBLY AND OIL SUCTION SCREEN
6-2
O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
OIL SUMP AND INDUCTION SYSTEMINTAKE PIPES AND ATTACHING PARTS
FIG.REF.
2012345678
PARTNUMBER
7048569603LW-15592-8-287197373346STD-8STD-160LW-25-1.25
DESCRIPTION
PIPE. Intake, all cylindersHOSE. 1-3/4 I.D. x 2-3/16 O.D. x 1-3/4 longCLAMP. HoseGASKET, 2 bolt flange 1-3/4 I.D.FLANGE; Intake pipe, upperWASHER, 1/4 plainWASHER. 1/4 lock. internal teethBOLT, 1/4-20 x 1-1/4 long, hex. hd.
44844888
QTY.PER
ASSY.
Figure 20. INTAKE PIPES AND ATTACHING PARTS
6-3
FIG.REF.
2112345
PARTNUMBER
6622471098STD-35STD-475STD-1410
3-
4-5-
TEXTRON Lycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
OIL SUMP AND INDUCTION SYSTEMCARBURETOR ASSEMBLY
QTY.PER
ASSY.DESCRIPTION
GASKET. CarburetorCARBURETOR. MA 4-5 (10-3878)WASHER. 5/16 plainWASHER. 5/16 lock. internal teethNUT, 5/16-18 plain
11444
-2
Figure 21. CARBURETOR ASSEMBLY
6-4
TEXTRON Lycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
SERVICE KIT SECTION ...... SEAL AND GASKET KIT
Part No. Part Name Qty.
75439-1AN901-8ALW-10332LW- 12272LW-12681LW-12795LW-13353LW- 13792*LW-14260LW-14995LW- 18639LW-18661LW-19296STD-475STD-21306A1995606E 19769-0.6306E 19769-1.0006E 19769-1.251691-C6009661173611836222466224683156916469345695517031070455714817197372053720597207572078720917222072312728297318973383738177381874065
SEAL AND GASKET SETGASKET, Metal tube connect sealLOCKPLATE, Crankshaft gearLOCKPLATE, Shroud tubeGASKET, MagnetoGASKET, Oil filter adapterGASKET, Oil sumpSEAL, Crankshaft oilSEAL, Tachometer driveSPRING, Shroud tubeLOCKPLATE, Crankshaft gearSEAL, Shroud tubeGASKET, Exhaust flangeWASHER, 5/16 lock, internal teethSEAL, OilSEAL, OilGASKETGASKETGASKETGASKET, Fuel pumpGASKET, Fuel pumpGASKET, Oil pressure housingGASKET, Accessory adapterGASKET, Magneto adapterGASKET, CarburetorGASKET, Accessory driveGASKET, Fuel pump adapterSPACERGASKET, Accessory driveSEAL, Shroud tubeGASKETRING, Oil sealGASKETGASKET, GovernorGASKET, Oil level gageSEAL, OilLOCKPLATERING, Oil sealGASKET, Oil level gageRING, Oil sealLOCKPLATEGASKETLOCKPLATELOCKPLATEGASKET, Accessory housingRING, Oil level gage seal
1114211114184411211111132114181442162211112211
7-1
TEXTRON
Part No.
75439-174068759067651076940*77154776118313
Lycoming O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
SERVICE KIT SECTION ....... SEAL AND GASKET SET
Part Name Qty.
SEAL AND GASKET SET (CONT.)RING, Oil level gage plug 1GASKET, Rocker box cover 4GASKET, Oil cooler bypass 1SEAL, Crankshaft oil 1GASKET, Carburetor 1GASKET, Exhaust flange 4GASKET, Vacuum pump 1
* Refer to latest edition of Textron Lycoming Service Instruction No. 1324 for application.
7-2
Lycoming O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
SERVICE KIT SECTION ...... CYLINDER, PISTON AND RING ASSEMBLY KIT
Part No. Part Name Qty.
05K21104LW-12427LW-1900173938LW-11800LW- 11795LW- 10077LW-1647565441LW-133236000917C2119117C 19386750897424114H21950LW-14077LW- 117756082871481LW- 186617031075906SSP-2272SSP-2472-1SSP-672721987761171973
KIT - CYLINDER, PISTON AND RING ASSY.CYLINDER AND HEAD ASSY.VALVE, ExhaustVALVE, IntakeSPRING, Valve, outerSPRING, Valve, innerSEAT, Valve spring, upper, intakeSEAT, Valve spring, upper, exhaustSEAT, Valve spring, lower, intakeSEAT, Valve spring, lower, exhaustKEY, Valve, intakeKEY, Valve, exhaustCAP, Valve stem, exhaustPISTONRING, Piston, compressionRING, Piston, oil regulatingPIN, PistonPLUG, Piston pinPLUG, Piston pinRING, Oil sealSEAL, Shroud tubeSEAL, Shroud tubeGASKET, Rocker box coverTAGTAGTAGPLUG, Piston pinGASKET, ExhaustflangeGASKET, 2 bolt flange
11112211112211211221221111211
7-3
Lycoming O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINES
SERVICE KIT SECTION ....... CRANKCASE ASSY. AND THRU STUD KIT
Part No. Part Name Qty.
11B20061-1SH-S11B20061-1SH7622074887STD-20901102STD- 1339SSP-582SSP-272
CRANKCASE ASSY. AND THRU STUD KITCRANKCASE ASSY.THRU STUDSPACERNUTPLUG, 1/8 pipePLUG, 1/16 pipeTAG (Thin wall bearing)TAG (Piston cooling nozzles)
114226411
7-4
Lycoming O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE
NUMERICAL INDEX
PART NO. PART NAME PAGE NO. PART NO. PART NAME PAGE NO.
AN6-34AAN960-616LLW-25-0.94LW-25-0.94LW-25-1.13LW-25-1.13LW-25-1.13LW-25-1.25LW-25-1.50LW-25-1.50LW-25S1.50LW-25-1.75LW-31H0.75LW-31H0.88LW-31-0.94LW-31-1.09LW-31-1.16LW-31S1.16LW-31S1.28LW-38-0.75LW-10077LW-11485LW-11713LW-11750-SLW-11775LW-11795LW-11800LW-11997LW-12186LW-12272LW-12427LW-12545LW-12681LW-12706LW-12892LW-13323LW-13353LW-13521LW-13790
BoltWasherBoltBoltBoltBoltBoltBoltBoltBoltBoltBoltBoltBoltBoltBoltBoltBoltBoltBoltSeatShroud Tube Assy.
1-91-92-36-11-92-36-16-31-92-31-91-95-31-75-35-25-15-35-32-53-73-71-33-13-13-73-71-33-13-73-36-14-14-13-53-76-13-11-3
LW-13792LW-13793LW-13796LW-13884LW-13923LW-14077LW-14260LW-14780LW-14995LW-15571LW-15592-5-05LW-15592-8-28LW-16064LW-16475LW-16711LW-18085LW-18639LW-18661LW-18667LW-18840LW-19001MS20823-6DSTD-8STD-8STD-8STD-8STD-8STD-8STD-33STD-33STD-35STD-35STD-35STD-35STD-35STD-35STD-35STD-68STD-91
SealStudShaftBearingBushingPinSealGage Assy.SpringStarterHoseClampSupport Assy.SeatBearingSpringLockplateSealPinCamshaft Assy.ValveElbowWasherWasherWasherWasherWasherWasherWasherWasherWasherWasherWasherWasherWasherWasherWasherCotter PinPlug
1-31-11-71-33-13-12-31-33-75-13-96-31-53-71-31-31-53-71-71-73-73-31-92-32-52-76-16-31-92-52-32-53-35-15-25-36-45-36-1
SpringConn. RodPlugSpringSpringSeal
Assy.
NutLockplateCyl. & Head Assy.PlugGasketAdapterThrust ButtonSeatGasketBearingShaft
8-1
TEXTRON Lycoming 0-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE
NUMERICAL INDEX (Continued)
PART NO. PART NAME PAGE NO. PART NO. PART NAME PAGE NO.
STD-160STD-160STD-160STD-160STD-475STD-475STD-475STD-475STD-475STD-475STD-514STD-551STD-557STD-596STD-678STD-678STD-684STD-713STD-783STD-784STD-784STD-872STD-1065STD-1339STD-1353STD- 1409STD-1410STD-1410STD-1410STD-1410STD-1410STD-1410STD-1411STD-1411STD-1411STD-1411STD-1420STD-1420STD-1623STD-1727STD-1774
WasherWasherWasherWasherWasherWasherWasherWasherWasherWasherDowelPlugDowelNutWasherWasherNippleCotter PinPlugPlugPlugNutDowelPlugInsertNutNutNutNutNutNutNutNutNutNutNutNutNutInsertWasherPin
1-92-56-16-32-53-34-15-15-26-41-16-11-11-91-92-53-94-12-52-12-71-91-51-13-31-92-53-34-15-15-26-41-92-53-76-12-35-31-15-32-5
STD-1821STD-1856STD-1925STD-2090STD-2168STD-2213STD-2229STD-223125C-825C-2231C-1231C-1231C-1231C-1331C-1531C-1931CD-1738-1338D-1750-15383-B1028-B1102110211021182-B783136000960096604306080361084610986117361174611836124761681622246241762817
HoseScrewScrewNutNutScrewPlugRingStudStudStudStudStudStudStudStudStudStudStudStudNutBallPlugPlugPlugSpark PlugGasketKeyGasketCoverStrapSpringAdapter Assy.GasketShaftGasketCoverGuide, IntakeGasketPlugScreen Assy.
3-92-73-93-51-71-56-11-73-32-11-12-13-31-16-12-12-11-11-11-13-51-31-12-13-34-12-53-72-52-51-91-32-52-72-32-53-93-34-12-72-7
8-2
O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE
NUMERICAL INDEX (Continued)
PART NO. PART NAME PAGE NO. PART NO. PART NAME PAGE NO.
65098654416622466610667966866868759687606876169106695106955169603697967031070419704847048571098711407148171596716107161171973720577205872059720757209172155-S7256672877729707334673383734377381873938
CoverSeatGasketBushingInsertSpringTube Assy.Tube Assy.Tube Assy.CoverHousingGasketHoseDowelSealBracket, GeneratorScreenIntake PipesCarburetorFittingRingWasherHookRetainerGasketSeatSeatGasketSealRingBushingGearBodyGear Assy.FlangeLockplateRod Assy.GasketValve
2-53-76-43-33-31-33-93-93-92-52-72-56-31-13-75-36-16-36-42-73-52-53-93-96-33-33-31-31-31-31-51-51-32-56-35-33-52-13-7
7406574230742417463774887749967506175089751547533975656-S75657-S7576775906760287611876121762207651077309774677761177718778087829078531789147891501P19762-1-4305K19423-S06A1995696E19769-0.6306E19769-1.0006E19769-1.2511B20061-1SH13B2713513S1964614H2195015B21319
RingGuide, ExhaustRingBushingSpacerGear Assy.BoltPistonStudBaffle Assy.BushingBushingTubeGasketLinkSpacerShaft Assy.StudGasketBushingSpringGasketStrutValve Assy.Plunger Assy.BodyConnectionSump Assy.Bag AttachingImpeller KitOil SealGasketGasketGasketCrankcase Assy.Crk'shft & Bush. Assy.GearRingSocket
1-33-33-13-53-51-73-13-11-13-91-51-51-33-95-31-71-71-92-71-71-33-35-31-33-72-36-16-14-12-32-52-76-11-31-11-51-53-13-7
8-3
Lycoming O-360-A4P PARTS CATALOGWIDE CYLINDER FLANGE CRANKCASE MODEL ENGINE
NUMERICAL INDEX (Continued)
PART NO. PART NAME PAGE NO.
15F19957-3415F19957-3515F19957-3617C1938617C2119117F1935718A1944121A21533-0431A2211037B 19774-32553E2214466GC20SFNN66GP-OSANN66M2119567P2040667P2040768C19622
Rod Assy.Rod Assy.Rod Assy.CapKeyRocker Assy.BearingHousing Assy.StarterBelt, GeneratorValve Assy.MagnetoMagnetoClampHarness Assy.Harness Assy.Magneto Gear
3-53-53-53-73-73-51-32-15-25-32-74-14-14-14-14-14-1
8-4