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COPYRIGHT by BRIGGS & STRATTON CORPORATIONAll rights reserved. No part of this material may be reproduced or transmitted,in any form or by any means, electronic or mechanical, including photocopying,recording or by any information storage and retrieval system, withoutpermissionin writing from Briggs & Stratton Corporation.
PRINTED IN U.S.A.
FORM MS4056 REV M 09/04/2015REPLACES FORM MS4056 REV K 08/31/2012
FILE IN SECT. 2 OF SERVICE MANUAL
12S400
Illustrated Parts ListModel Series
12S400TYPE NUMBERS
0001, 0002, 0004, 0006, 0007, 0020, 0022, 0023, 0026, 0028, 0033, 0035, 0036, 0037, 0049, 0050,0060, 0070, 0072, 0111, 0112, 0118, 0119, 0121, 0123, 0125, 0126, 0127, 0128, 0129, 0130, 0131,0132, 0133, 0134, 0137, 0137, 0140, 0141, 0142, 0143, 0221, 0223, 0523, 0526, 0535, 0536, 0549,0560, 2127, 2129, 2133, 2135, 2136, 2137, 2138, 2139, 2140, 2142, 2144, 2145, 2146, 2147, 2148,
2164, 2172, 2176, 2180, 2181, 2184, 2185.
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12S400
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4056--2 Assemblies include all parts shown in frames. 09/04/2015
2
552
71815
615
3
306
307
1 616
1220
517
993
1022
883
3
868
358 ENGINE GASKET SET
163B
15A
27
27
25 26
28
24
741
16
357
46
30
3232A
29
20A
46B
883A
46A
32B
29B
1058 OPERATOR’S MANUAL
1319 WARNING LABEL
1330 REPAIR MANUAL
1036 EMISSIONS LABEL
1319AWARNING LABEL
17
17A
332
741A
16A 332
377
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12S400
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4056--3 Assemblies include all parts shown in frames. 09/04/2015
3
80
3
83A
88A
82B
17B
87A
15B
85A
84A86A
79A
12
18A
20 415B
21
415
17
21
842
287
523847
524
746742
220
219
799364
2861305
1052
170
22
12
1820
415
21
522
20A
18C
12
21
415
17
21
17B
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12S400
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4056--4 Assemblies include all parts shown in frames. 09/04/2015
4
383337
36 238
40
35 238
40868 51
7
993
1022
619
830
1029
13
102645
1022
51
7993
1022868
1095 VALVE GASKET SET
155
34
192
1023
33
1225
1034
914
914A
635A635
383A
914B
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12S400
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4056--5 Assemblies include all parts shown in frames. 09/04/2015
5
535
190B
972A
601187
240
957C
1345
1345A
365
51
95
692
104C
137
276
633
186
633A
130108
127163B
276
276
51
118
122
117
975
133
134
97
10998
NOTE: This Illustration Represents SeveralCarburetors. Parts Shown May NotBe Included In All Kits.
957C
601
187D
601
187C
958
1425A
1068
804
601B
825
703
633
109A
121D CARBURETOR OVERHAUL KIT
51137127
104C
127E
276 276C
137C
633B
633
163B
601187A
957A
972
957A
190
633B
97C
51
95
104C
130D
127E
125D
133B
98C
692B
633
109C
163B
108
137C
276C
975C
117D118D
105A
633
109
633
109A
NOTE: This Illustration RepresentsSeveral Carburetors. PartsShown May Not Be IncludedIn All Kits.
104C
137
276
121 CARBURETOR OVERHAUL KIT
633
633A127
134
163B
163A51
51A
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12S400
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4056--6 Assemblies include all parts shown in frames. 09/04/2015
6
334851
347
356B
356C
209 209A
505
562
632
271
270268
269
663281
333
227
843A
267
265
1054
356F
652A
890
652
356
356A
356E
920
579
577
500B664
990A
892A
835
361
503
813
789
1119
474
188
427
773
271A
668
621
504222D564
564A
604
474E
501A
526A
318A
493B
621
188222F
1230
621
188222C
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12S400
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4056--7 Assemblies include all parts shown in frames. 09/04/2015
7
11
163B
161
445
535A
968
425
971
535
643
883
613
300
836A
832
836
677
676
346
994A
836E
832D
883
613
819
300E
445
535B
968B425A
11B
161A
163B 971
1425A
832A
883864
823883A
300A
819863
836B
836C
613A
613B
11A
445A
535B
968A
467
961
862 971B
875
163A
994
971A
819A
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12S400
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4056--8 Assemblies include all parts shown in frames. 09/04/2015
8
363
23
1070
455332
597
456
689
459
58
55
60
304
305
37
78
1005A
727732
697
802
311
675797
513783
1051
801 310
309
510
1090
728
725
65
1210
1211
608C
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REF. PART REF. PART REF. PARTNO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION
12S400
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4056--9 Assemblies include all parts shown in frames. 09/04/2015
9
1 699505 Cylinder Assembly3 299819S Seal--Oil
(Magneto Side)5 797439 Head--Cylinder
(Metric)7 698210 Gasket--Cylinder Head11 692600 Tube--Breather
(Flat Panel AirCleaner)
11A 693647 Tube--Breather(High Mount AirCleaner)
11B 790632 Tube--Breather(Ultra Low Air Cleaner)
12 699485 Gasket--Crankcase13 699482 Screw
(Cylinder Head)15 691686 Plug--Oil Drain
(Square Head)15A 691682 Plug--Oil Drain
(Flush)15B 792750 Plug--Oil Drain16 795927 Crankshaft
(Used with MatingMetal Gear).(Used After Code Date11060100).Used on Type No(s).0037, 0049, 0126,0130, 0131, 0132,0133, 0135, 0549,2142, 2144, 2145,2172, 2176, 2180,2185, 2186.-- -- -- -- -- -- Note -- -- -- -- -- --797076 Crankshaft(Used with MatingMetal Gear).(Used Before CodeDate 13050600).Used on Type No(s).0028, 0119, 0137,2136, 2140.
797072 Crankshaft(Used with MatingMetal Gear).(Used Before CodeDate 13050600).Used on Type No(s).0002, 0036, 0050,0125, 0128, 0129,0134, 0536, 2135,2137, 2146, 2147.797074 Crankshaft(Used with MatingMetal Gear).(Used Before CodeDate 13050600).Used on Type No(s).0022.797070 Crankshaft(Used with MatingMetal Gear).(Used Before CodeDate 13050600).Used on Type No(s).0020, 0023, 0070,0118, 0127, 0523,2127, 2138, 2139.797070 Crankshaft(Used with MatingMetal Gear).(Used After Code Date15030200).Used on Type No(s).0070.797073 Crankshaft(Used with MatingMetal Gear).(Used Before CodeDate 13050600).Used on Type No(s).0033.797075 Crankshaft(Used with MatingMetal Gear).(Used Before CodeDate 13050600).Used on Type No(s).0060, 0111, 0112,0121, 0123, 0140,0141, 0221, 0223,0560, 2129, 2133,2148, 2164, 2181,2184.
797078 Crankshaft(Used with MatingMetal Gear).(Used Before CodeDate 13050600).Used on Type No(s).0035, 0535.797071 Crankshaft(Used with MatingMetal Gear).Used on Type No(s).0026, 0142, 0526.592129 Crankshaft(Used with MatingMetal Gear).(Used Before CodeDate 13050600).Used on Type No(s).0143.
16A 594991 Crankshaft(Used with MatingNylon Gear).(Used After Code Date13050500).Used on Type No(s).0028, 0119, 0137,2136, 2140.-- -- -- -- -- -- Note -- -- -- -- -- --593079 Crankshaft(Used with MatingNylon Gear).(Used After Code Date13050500).Used on Type No(s).0001, 0002, 0036,0050, 0072, 0125,0128, 0129, 0134,0536, 2137, 2146,2147.594996 Crankshaft(Used with MatingNylon Gear).(Used After Code Date13050500).Used on Type No(s).0022.593495 Crankshaft(Used with MatingNylon Gear).(Used After Code Date13050500).Used on Type No(s).0004, 0020, 0023,0127, 2127, 2138,2139.
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REF. PART REF. PART REF. PARTNO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION
12S400
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4056--10 Assemblies include all parts shown in frames. 09/04/2015
10
593495 Crankshaft(Used with MatingNylon Gear).(Used After Code Date13050500 and BeforeCode Date 15030200).Used on Type No(s).0070.594992 Crankshaft(Used with MatingNylon Gear).(Used After Code Date13050500).Used on Type No(s).0033.593497 Crankshaft(Used with MatingNylon Gear).(Used After Code Date13050500).Used on Type No(s).0006, 0007, 0060,0111, 0112, 0121,0123, 0133, 0140,0141, 0221, 0223,2133.594993Crankshaft(Used with MatingNylon Gear).(Used After Code Date13050500).Used on Type No(s).0035, 0535.594994 Crankshaft(Used with MatingNylon Gear).(Used After Code Date13050500).Used on Type No(s).0026, 0142, 0526.594995 Crankshaft(Used with MatingNylon Gear).(Used After Code Date13050500).Used on Type No(s).0143.
17 798538 Bearing--Ball17A 690824 Bearing--Ball
17B 99158 Bearing--Ball18 699804 Cover--Crankcase
Used on Type No(s).0004, 0022, 0023,0026, 0028, 0049,0060, 0118, 0119,0126, 0127, 0130,0131, 0132, 0133,0135, 0523, 0526,0549, 0560, 2127,2133, 2136, 2140,2142, 2144, 2145,2172, 2176, 2180,2185, 2186.
18A 699672 Cover--CrankcaseUsed on Type No(s).0001, 0002, 0006,0007, 0033, 0035,0036, 0050, 0072,0111, 0112, 0121,0123, 0125, 0128,0129, 0134, 0140,0141, 0142, 0221,0223, 0535, 0536,2129, 2135, 2137,2139, 2146, 2147,2148, 2164, 2181,2184.-- -- -- -- -- -- -- Note -- -- -- -- --699696 Cover--CrankcaseUsed on Type No(s).0020, 2138.790337 Cover--CrankcaseUsed on Type No(s).0143.
18C 699677 Cover--CrankcaseUsed on Type No(s).0070.
20 692550 Seal--Oil(PTO Side)-- -- -- -- -- -- -- Note -- -- -- -- --694171 Seal--Oil(PTO Side)Used on Type No(s).0033.
20A 691952 Seal--Oil(PTO Side)
21 281658S Cap--Oil Fill22 799318 Screw
(CrankcaseCover/Sump)
23 699488 FlywheelUsed on Type No(s).0002, 0004, 0006,0007, 0020, 0022,0023, 0026, 0028,0033, 0035, 0036,0037, 0049, 0060,0070, 0072, 0111,0118, 0119, 0126,0127, 0128, 0130,0131, 0132, 0133,0135, 0137, 0140,0142, 0143, 0223,0523, 0526, 0535,0536, 0549, 0560,2127, 2133, 2135,2136, 2137, 2138,2140, 2142, 2144,2145, 2146, 2147,2148, 2172, 2176,2180, 2184, 2185,2186.-- -- -- -- -- -- -- Note -- -- -- -- --699514 FlywheelUsed on Type No(s).0001, 0050, 0112,0121, 0123, 0125,0129, 0141, 0221,2129, 2139, 2164,2181.790328 FlywheelUsed on Type No(s).0134.
24 796335 Key--Flywheel25 795429 Piston Assembly
(Standard)-- -- -- -- -- -- -- Note -- -- -- -- --799064 PistonAssembly(.020” Oversize)
26 791969 Ring Set(Standard)-- -- -- -- -- -- -- Note -- -- -- -- --791324 Ring Set(.020” Oversize)
27 691866 Lock--Piston Pin28 499423 Pin--Piston29 792247 Rod--Connecting
(.020” Undersize)29B 798813 Rod--Connecting30 791584 Dipper--Connecting
Rod32 691664 Screw
(Connecting Rod)32A 695759 Screw
(Connecting Rod)
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REF. PART REF. PART REF. PARTNO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION
12S400
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4056--11 Assemblies include all parts shown in frames. 09/04/2015
11
32B 797437 Screw(Connecting Rod)
33 499642 Valve--Exhaust34 795443 Valve--Intake35 691304 Spring--Valve
(Intake)36 691304 Spring--Valve
(Exhaust)37 699661 Guard--Flywheel40 692194 Retainer--Valve45 690977 Tappet--Valve46 693404 Camshaft
46A 696813 Camshaft46B 694831 Camshaft
Used on Type No(s).0070.
51 692555 Gasket--Intake51A 791718 Gasket--Intake55 Housing--Rewind
Starter(Used After Code Date11123100).(Not ServicedSeparate. Service WithRewind Assembly.)-- -- -- -- -- -- Note -- -- -- -- -- --791848 Housing--Rewind(Used Before CodeDate 12010100).
58 693389 Rope--Starter(Used After Code Date08030200).-- -- -- -- -- -- -- Note -- -- -- -- --66574 Rope--Starter(Used Before CodeDate 08030300).
60 490652 Grip--Starter Rope65 699228 Screw
(Rewind Starter)(Metric)
78 699205 Screw(Flywheel Guard)
79A 792746 Case--Gear Reduction80 792755 Gasket--Gear Case
82B 792753 Screw(Gear Reduction Case)
83A 792756 Shaft--Auxiliary Drive84A 792759 Plug--Breather85A 690711 Screw
(Gear Cover to GearReduction)
86A 795647 Cover--Gear87A 792752 Seal--Gear Reduction88A 792760 Gasket--Gear
Reduction Cover
95 691636 Screw(Throttle Valve)
97 690024 Shaft--Throttle97C 797628 Shaft--Throttle98 398185 Kit--Idle Speed
98C 797156 Kit--Idle Speed104C 797622 Pin--Float Hinge105A 797139 Valve--Float Needle108 692567 Valve--Choke109 690023 Shaft--Choke
109A 693628 Shaft--Choke109C 790624 Shaft--Choke117 690048 Jet--Main
(Standard)(Used Before CodeDate 10040100).-- -- -- -- -- -- -- Note -- -- -- -- --691428 Jet--Main(Standard)(Used Before CodeDate 10100100).Used on Type No(s).0526.
117D 591298 Jet--Main(Standard)(Used After Code Date11123100).-- -- -- -- -- -- -- Note -- -- -- -- --798652 Jet--Main(Standard)(Used After Code Date10033100 and BeforeCode Date 12010100).591298 Jet--Main(Standard)(Used After Code Date11123100).Used on Type No(s).0526.798652 Jet--Main(Standard)(Used After Code Date10093000 and BeforeCode Date 12010100).Used on Type No(s).0526.590906 Jet--Main(Standard)Used on Type No(s).0001, 0006, 0037,2137, 2138, 2139,2140, 2142, 2148,2176, 2186.
118 497315 Jet--Main(High Altitude)(Used Before CodeDate 10040100).-- -- -- -- -- -- -- Note -- -- -- -- --695042 Jet--Main(High Altitude)(Used Before CodeDate 10100100).Used on Type No(s).0526.
118D 797574 Jet--Main(High Altitude)(Used After Code Date11123100).-- -- -- -- -- -- -- Note -- -- -- -- --798651 Jet--Main(High Altitude)(Used After Code Date10033100 and BeforeCode Date 12010100).797574 Jet--Main(High Altitude)(Used After Code Date11123100).Used on Type No(s).0526.798651 Jet--Main(High Altitude)(Used After Code Date10093000 and BeforeCode Date 12010100).Used on Type No(s).0526.590440 Jet--Main(High Altitude)Used on Type No(s).2137, 2139, 2140,2142, 2148, 2176,2186.
121 792006 Kit--CarburetorOverhaul
121D 797634 Kit--CarburetorOverhaul
122 795643 Spacer--Carburetor125D 591299 Carburetor
-- -- -- -- -- -- Note -- -- -- -- -- --591309 CarburetorUsed on Type No(s).0006, 0037, 2137,2138, 2139, 2140,2142, 2148, 2176,2186.799906 CarburetorUsed on Type No(s).0125.
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REF. PART REF. PART REF. PARTNO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION
12S400
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4056--12 Assemblies include all parts shown in frames. 09/04/2015
12
127 691739 Plug--Welch127E 797633 Plug--Welch130 691181 Valve--Throttle
130D 797630 Valve--Throttle133 398187 Float--Carburetor
133B 797136 Float--Carburetor134 398188 Kit--Needle/Seat137 693981 Gasket--Float Bowl
137C 797625 Gasket--Float Bowl155 797442 Plate--Cylinder Head
(Metric)(Used After Code Date09061700).-- -- -- -- -- -- -- Note -- -- -- -- --698214 Plate--CylinderHead(SAE)(Used Before CodeDate 09061800).
161 795567 Base--Air Cleaner(Metal)(Flat Panel AirCleaner)-- -- -- -- -- -- -- Note -- -- -- -- --699207 Base--AirCleaner(Metal)(Flat Panel AirCleaner)Used on Type No(s).0002, 0004, 0007,0023, 0026, 0033,0035, 0036, 0049,0050, 0060, 0070,0072, 0126, 0127,0128, 0129, 0130,0131, 0132, 0133,0134, 0135, 0137,0140, 0141, 0143,0221, 0223, 2127,2129, 2133, 2135,2136, 2144, 2145,2146, 2147, 2164,2172, 2180, 2181,2184, 2185.
161A 795231 Base--Air Cleaner(Ultra Low Air Cleaner)Used on Type No(s).0125.-- -- -- -- -- -- Note -- -- -- -- -- --790631 Base--AirCleaner(Ultra Low Air Cleaner)Used on Type No(s).0020, 0022.
799855 Base--AirCleaner(Ultra Low Air Cleaner)Used on Type No(s).0142.
163A 792870 Gasket--Air Cleaner(High Mount)
163B 696024 Gasket--Air Cleaner(Flat Panel AirCleaner)
170 699818 Stud(Crankcase Cover)
186 692317 Connector--Hose187 791766 Line--Fuel
(Cut to RequiredLength)
187A 791867 Line--Fuel(Molded)
187C 791866 Line--Fuel(Molded)
187D 795046 Line--Fuel(Molded)
188 699479 Screw(Control Bracket)
190 699220 Screw(Fuel Tank)
190B 795047 Screw(Fuel Tank)
192 797440 Adjuster--Rocker Arm(Metric)(Used After Code Date09061700).-- -- -- -- -- -- -- Note -- -- -- -- --694543Adjuster--Rocker Arm(SAE)(Used Before CodeDate 09061800).
209 692571 Spring--GovernorUsed on Type No(s).0002, 0007, 0020,0022, 0028, 0036,0037, 0049, 0050,0111, 0112, 0119,0121, 0123, 0125,0126, 0128, 0129,0130, 0131, 0132,0133, 0134, 0135,0136, 0137, 0138,0139, 0140, 0141,0143, 0221, 0223,0536, 0549, 2129,2135, 2136, 2137,2138, 2139, 2140,2142, 2144, 2145,2146, 2164, 2172,2176, 2180, 2181,2184, 2185, 2186.-- -- -- -- -- -- -- Note -- -- -- -- --693206 Spring--GovernorUsed on Type No(s).0001, 0004, 0006,0023, 0026, 0033,0035, 0060, 0070,0072, 0118, 0127,0133, 0142, 0523,0526, 0535, 0560,2127, 2133, 2147,2148.693710 Spring--GovernorUsed on Type No(s).0125.
209A 691278 Spring--Governor219 693578 Gear--Governor220 691724 Washer
(Governor Gear)
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REF. PART REF. PART REF. PARTNO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION
12S400
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4056--13 Assemblies include all parts shown in frames. 09/04/2015
13
222D 795669 Bracket--Control(Variable Speed)-- -- -- -- -- -- -- Note -- -- -- -- --793107 Bracket--Control(Variable Speed)Used on Type No(s).0001, 0002, 0004,0006, 0007, 0020,0022, 0023, 0028,0035, 0036, 0037,0049, 0050, 0060,0070, 0072, 0126,0127, 0128, 0129,0130, 0131, 0132,0133, 0134, 0135,0137, 0140, 0141,0143, 0221, 0223,2127, 2129, 2133,2135, 2136, 2137,2138, 2139, 2140,2142, 2144, 2145,2146, 2147, 2148,2164, 2172, 2176,2180, 2181, 2184,2185, 2186.
222C 795668 Bracket--Control(Fixed Speed)Used on Type No(s).0125.
222F 793100 Bracket--Control(Fixed Speed)Used on Type No(s).0026, 0033, 0142.
227 794367 Lever--GovernorControl
238 691300 Valve--Cap240 394358S Filter--Fuel
(White, 75 Microns)-- -- -- -- -- -- Note -- -- -- -- -- --298090S Filter--Fuel(Red, 150 Microns)
265 691024 Clamp--Casing267 699492 Screw
(Casing Clamp)268 691025 Casing--Control Wire
(Cut to RequiredLength)
269 691026 Wire--Control(Cut to RequiredLength)
270 691027 Nut(Control Wire Casing)
271 691028 Lever--Control271A 694256 Lever--Control276 271716 Washer--Sealing
276C 797632 Washer--Sealing281 795565 Panel--Control
-- -- -- -- -- -- -- Note -- -- -- -- --793122 Panel--ControlUsed on Type No(s).0004, 0007, 0020,0022, 0023, 0026,0033, 0035, 0036,0037, 0049, 0050,0060, 0070, 0072,0126, 0127, 0128,0129, 0130, 0131,0132, 0133, 0134,0135, 0137, 0140,0141, 0143, 0221,0223, 2127, 2129,2133, 2135, 2136,2137, 2138, 2139,2140, 2142, 2144,2145, 2146, 2147,2148, 2164, 2172,2176, 2180, 2181,2184, 2185, 2186.
286 794185 Module--Oil Sensor287 699234 Screw
(Dipstick Tube)300 693593 Muffler
300A 797433 Muffler300E 791595 Muffler304 699598 Housing--Blower
-- -- -- -- -- -- -- Note -- -- -- -- --795658Housing--BlowerUsed on Type No(s).0111, 0112, 0118,0119, 0121, 0123,0523, 0526, 0535,0536, 0549, 0560.
305 699481 Screw(Blower Housing)
306 795334 Shield--Cylinder307 699483 Screw
(Cylinder Shield)309 694504 Motor--Starter310 690323 Screw
(Starter Motor)311 497608 Brush Set
318A 795026 Screw(Mounting Bracket)
332 591988 Nut(Flywheel)
333 796964 Armature--Magneto334 699477 Screw
(Magneto Armature)
337 491055s Plug--Spark(Resistor)-- -- -- -- -- -- -- Note -- -- -- -- --691043 Plug--Spark(EMS)
346 699203 Screw(Spark Arrestor)(Metric)-- -- -- -- -- -- -- Note -- -- -- -- --690661 Screw(Spark Arrestor)(SAE)
347 697854 Switch--RockerUsed on Type No(s).0001, 0002, 0033,0035, 0036, 0037,0070, 0130, 0134,0536, 2133, 2142,2176.-- -- -- -- -- -- -- Note -- -- -- -- --795333 Switch--RockerUsed on Type No(s).0006, 0026, 0028,0050, 0128, 0129,0131, 0132, 0142,0143, 2148, 2172,2185.
356 693651 Wire--Stop356A 692390 Wire--Stop356B 692602 Wire--Stop356C 695630 Wire--Stop356E 695814 Wire--Stop356F 697397 Wire--Stop357 692191 Key--Drive Pulley358 791797 Gasket Set--Engine361 691693 Screw
(Starting Switch)363 19203 Puller--Flywheel364 695693 Terminal--Oil Plug365 699484 Screw
(Carburetor)377 690979 Key--Woodruff383 19576S Wrench--Spark Plug
383A 590721 Wrench--Spark Plug415 693463 Plug
415B 792749 Plug425 699208 Screw
(Air Cleaner Cover)425A 699492 Screw
(Air Cleaner Cover)
Not for
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REF. PART REF. PART REF. PARTNO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION
12S400
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4056--14 Assemblies include all parts shown in frames. 09/04/2015
14
427 798458 Nut(Control Bracket)(Metric)-- -- -- -- -- -- -- Note -- -- -- -- --694255 Nut(Control Bracket)(SAE)
445 491588S Filter--Air CleanerCartridge(Flat Panel)
445A 697029 Filter--Air CleanerCartridge(High Mount)
455 591302 Cup--Flywheel456 Plate--Pawl Friction
(Used After Code Date11123100).(Not ServicedSeparate. Service WithRewind Assembly.)-- -- -- -- -- -- Note -- -- -- -- -- --692299 Plate--PawlFriction(Used Before CodeDate 12010100).
459 Pawl--Ratchet(Used After Code Date11123100).(Not ServicedSeparate. Service WithRewind Assembly.)-- -- -- -- -- -- Note -- -- -- -- -- --281505S Pawl--Ratchet(Used Before CodeDate 12010100).
467 691668 Knob--Air Cleaner
474 793640 AlternatorUsed on Type No(s).0001, 0050, 0128.-- -- -- -- -- -- -- Note -- -- -- -- --695730 AlternatorUsed on Type No(s).0112, 0121, 0129,0141, 0221, 2129,2139, 2181.
474E 790320 AlternatorUsed on Type No(s).0134.
493B 699048 Bracket--Regulator501A 790325 Regulator
(20 Amp.)500B 691086 Washer
(Key Switch)503 691532 Strap--Starter
504 695383 Washer Set--Friction505 691251 Nut
(Governor ControlLever)
510 499308 Drive--Starter513 692024 Drive--Clutch522 697689 Plug--Dipstick/Fill523 693618 Dipstick
-- -- -- -- -- -- -- Note -- -- -- -- --798469 DipstickUsed on Type No(s).0125.
524 281370S Seal--Dipstick Tube526A 690326 Screw
(20 Amp. Regulator)535 696263 Filter--Air Cleaner
Foam535A 493537S Filter--Pre Cleaner
(Flat Panel)535B 273356S Filter--Pre Cleaner
(High Mount)552 692346 Bushing--Governor
Crank562 691119 Bolt
(Governor ControlLever)
564 699491 Screw(Control Cover)
564A 699206 Screw(Control Cover)
577 690795 Cable--Starter579 691029 Nut
(Starter Cable)597 Screw
(Pawl Friction Plate)(Used After Code Date11123100).(Not ServicedSeparate. Service WithRewind Assembly.)-- -- -- -- -- -- Note -- -- -- -- -- --691696 Screw(Pawl Friction Plate)(Used Before CodeDate 12010100).
601 791850 Clamp--Hose601B 795230 Clamp--Hose604 697326 Cover--Control
608C 591301 Starter--Rewind613 791972 Screw
(Muffler)613A 699481 Screw
(Muffler)613B 799081 Screw
(Muffler)
615 692576 Retainer--GovernorShaft
616 692547 Crank--Governor619 699481 Screw
(Cylinder Head Plate)621 692310 Switch--Stop632 693408 Spring/Link--
Mechanical Governor633 693867 Seal--Choke/Throttle
Shaft633A 691321 Seal--Choke/Throttle
Shaft633B 797629 Seal--Throttle Shaft635 692076 Boot--Spark Plug
635A 798619 Boot--Spark Plug643 696264 Retainer--Air Filter652 699755 Screw
(Support Bracket)
652A 699230 Screw(Support Bracket)
663 699206 Screw(Control Panel)
664 691087 Nut(Key Switch)
668 694257 Spacer675 691261 Washer
(Brush Retainer)676 796956 Deflector--Muffler677 699203 Screw
(Muffler Deflector)(Metric)-- -- -- -- -- -- -- Note -- -- -- -- --690661 Screw(Muffler Deflector)(SAE)
689 Spring--Friction(Used After Code Date11123100).(Not ServicedSeparate. Service WithRewind Assembly.)-- -- -- -- -- -- Note -- -- -- -- -- --691855 Spring--Friction(Used Before CodeDate 12010100).
692 690572 Spring--Detent692B 797624 Spring--Detent697 699200 Screw703 795222 Clip718 690959 Pin--Locating725 792874 Shield--Heat727 698039 Cover--Starter Drive728 699491 Screw
(Heat Shield)
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REF. PART REF. PART REF. PARTNO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION
12S400
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4056--15 Assemblies include all parts shown in frames. 09/04/2015
15
732 699200 Screw(Starter Drive Cover)
741 695087 Gear--Timing(Metal Gear Used withMating Crankshaft).(Used After Code Date07063000).Used on Type No(s).0037, 0049, 0126,0130, 0131, 0132,0133, 0135, 2185.695087 Gear--Timing(Metal Gear Used withMating Crankshaft)(Used Before CodeDate 13050600).Used on Type No(s).0002, 0004, 0020,0022, 0023, 0026,0028, 0033, 0035,0036, 0050, 0070,0111, 0112, 0118,0119, 0121, 0125,0127, 0128, 0129,0134, 0137, 0140,0141, 0142, 0143,0221, 0223, 0523,0526, 0535, 0536,0549, 0560, 2127,2129, 2133, 2135,2136, 2137, 2138,2139, 2140, 2142,2144, 2145, 2146,2147, 2148, 2164,2172, 2176, 2180,2181, 2184.695087 Gear--Timing(Metal Gear Used withMating Crankshaft)(Used Before CodeDate 13050600 andAfter Code Date15030200).Used on Type No(s).0070.
741A 593499 Gear--Timing(Nylon Gear Used withMating Crankshaft).(Used After Code Date13050500)-- -- -- -- -- -- Note -- -- -- -- -- --593499 Gear--Timing(Nylon Gear Used withMating Crankshaft)(Used After Code Date13050500 and BeforeCode Date 15030300).Used on Type No(s).0070.
742 692564 Retainer--E Ring746 790278 Gear--Idler773 694258 Retainer783 692353 Gear--Pinion789 797457 Harness--Wiring797 691029 Nut
(Brush Retainer)799 699202 Screw
(Oil Sensor)801 694482 Cap--Drive802 691286 Cap--End804 795223 Canister--Carbon
(EVAP)813 690635 Clamp819 699233 Screw
(Muffler Bracket)819A 699230 Screw
(Muffler Bracket)823 791972 Screw
(Muffler Adapter)825 795226 Hose--Air830 797441 Stud--Rocker Arm
(Metric)(Used After Code Date09061700).-- -- -- -- -- -- -- Note -- -- -- -- --694544 Stud--RockerArm(SAE)(Used Before CodeDate 09061800).
832 693583 Guard--Muffler832A 697818 Guard--Muffler832D 796240 Guard--Muffler835 797458 Bracket--Wire Harness836 699203 Screw
(Muffler Guard)836A 699632 Screw
(Muffler Guard)836B 791972 Screw
(Muffler Guard)
836C 699234 Screw(Muffler Guard)
836E 699755 Screw(Muffler Guard)
842 691031 Seal--O Ring(Dipstick Tube)
843A 695588 Sleeve--Lever847 693617 Dipstick/Tube
Assembly-- -- -- -- -- -- -- Note -- -- -- -- --798468 Dipstick/TubeAssemblyUsed on Type No(s).0125.
851 493880S Terminal--Spark Plug862 693462 Strap/Stud--Air Cleaner
Mounting863 699229 Bracket--Muffler864 699232 Adapter--Muffler868 795440 Seal--Valve875 591306 Base--Air Cleaner
(High Mount)883 691893 Gasket--Exhaust
883A 692237 Gasket--Exhaust(Adapter Mounting)
890 790203 Bracket--Support892A 692318 Key--Swicth914 699481 Screw
(Rocker Cover)(Bottom)
914A 797444 Screw(Rocker Cover)(Quantity 1, Top OrCenter) (Metric)(Used After Code Date09061700).-- -- -- -- -- -- -- Note -- -- -- -- --692557 Screw(Top)(SAE)(Used Before CodeDate 09061800).
914B 697551 Screw(Rocker Cover)(Center)(SAE)(Used Before CodeDate 09061800).
920 691656 Solenoid--Starter957A 799719 Cap--Fuel Tank957C 795221 Cap--Fuel Tank958 698180 Valve--Fuel Shut Off
-- -- -- -- -- -- -- Note -- -- -- -- --698183 Valve--FuelShut OffUsed on Type No(s).0125.
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REF. PART REF. PART REF. PARTNO. NO. DESCRIPTION NO. NO. DESCRIPTION NO. NO. DESCRIPTION
12S400
Illustrations cover a range of engines. Parts shown without corresponding text may not be used on your specific engine.4056--16 Assemblies include all parts shown in frames. 09/04/2015
16
961 698304 Screw(Air Cleaner Bracket)
968 692584 Cover--Air Cleaner(Flat Panel)
968A 693460 Cover--Air Cleaner(High Mount)
968B 791082 Cover--Air Cleaner(Ultra Low Air Cleaner)
971 798649 Screw(Air Cleaner Base)(Metric)-- -- -- -- -- -- -- Note -- -- -- -- --690370 Screw(Air Cleaner Base)(SAE)
971A 591307 Screw(Air Cleaner Base)
971B 699234 Screw(Air Cleaner Base)
972 799863 Tank--Fuel972A 795705 Tank--Fuel975 796611 Bowl--Float
975C 797631 Bowl--Float990A 691959 Key Set993 694088 Gasket--Cylinder Head
Plate994 790153 Arrester--Spark
994A 399541 Arrester--Spark1005A 794273 Fan--Flywheel1022 691890 Gasket--Rocker Cover1023 791585 Cover--Rocker Arm1026 790287 Rod--Push1029 797443 Arm--Rocker
(Metric)(Used After Code Date09061700).-- -- -- -- -- -- -- Note -- -- -- -- --691230 Arm--Rocker(SAE)(Used Before CodeDate 09061800).
1034 691343 Guide--Push Rod1036 Label--Emissions
(Available From AnAuthorized Briggs &Stratton ServiceDealer)
1051 691265 Ring--Retaining1052 790141 Sensor--Oil1054 280275 Cable--Tie1058 277040 Operator’s Manual1068 795229 Hose--/Clamp
Assembly1070 699201 Screw
(Flywheel Fan)1090 691293 Retainer--Brush1095 791798 Gasket Set--Valve1119 699772 Screw
(Alternator)1210 Pulley/Spring
Assembly(Pulley)(Used After Code Date11123100).(Not ServicedSeparate. Service WithRewind Assembly.)-- -- -- -- -- -- -- Note -- -- -- -- --791849 Pulley/SpringAssembly(Pulley)(Used After Code Date08030200 and BeforeCode Date 12010100).498144 Pulley/SpringAssembly(Pulley)(Used Before CodeDate 08030300).
1211 Pulley/SpringAssembly(Spring)(Used After Code Date11123100).(Not ServicedSeparate. Service WithRewind Assembly.)-- -- -- -- -- -- -- Note -- -- -- -- --791849 Pulley/SpringAssembly(Spring)(Used After Code Date08030200 and BeforeCode Date 12010100).498144 Pulley/SpringAssembly(Spring)(Used Before CodeDate 08030300).
1230 699847 Stud(Control Bracket)
1305 699691 Screw(Oil Sensor Module)
1319 794467 Label--Warning1319A 797669 Label--Warning1330 272147 Repair Manual1345 699887 Filter--Filler Neck
1345A 792917 Filter--Filler Neck1425A 795227 Hose--Purge Line
Arm--Rocker-- -- -- -- -- -- -- Note -- -- -- -- --795741 Hose--PurgeLine(Cut to RequiredLength)Used on Type No(s).0125.
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