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17. XP XTREMEPERFORMANCE

With an iridium-enhanced.6 mm finewire design andpatented platinum sidewiretechnology, this plug providesthe durability advantages of adouble platinum spark plugwith virtually no gap erosion,longer life, and top fuelefficiency over the life of theplug compared to standardplugs. The XP XtremePerformance spark plugalso provides more focusedignition for better ignitabilityperformance.

16. REVOLUTIONHT

This unique, patented10-mm diameter high-threadspark plug design offers amore compressive seal andprovides more space tooptimize engine design, a one-piece ground shield strap forimproved heat transfer, and apatented finewire design formore focused ignition powercompared to standard plugs.This spark plug requires nogapping and requires a9/16-inch socket wrenchfor installation.

13. DOUBLEPLATINUM

Features our basicspark plug design withthe addition of aplatinum on the centertip and side electrodes.This plugs designdelivers platinumdurability with virtuallyno gap erosion overthe life of the plug.Double Platinum sparkplugs are the approved

spark plugs for DISengines.

12. PLATINUMOur basic spark plugdesign with theaddition of a platinumcenter electrode tipthat delivers precisionfiring, reduced gaperosion, moredurability, andimproved fuelefficiency over the lifeof the plug.

11. NECKED DOWNCENTER ELECTRODE

Tapered high nickel-chrome alloy tipcombined with copper centerelectrodeproduceshotter, sharperspark foreasierstartingand on-roadperformance.

10. SURFACE GAP TIPUsed with capacitor-discharge ignitionsystems only (principally marine,snowmobile and motorcycle engines).Providestotal protectionfrom spark pluginducedpre-ignition dueto the extremelycold heat rangeinherent inthe design.

9. SPECIALMAZDAPLUG

Specially designed anddeveloped foruse in Mazda rotaryengines. Features aspecial surface gapquadrupleelectrode design forself-cleaning and apexseal clearance.

8. RACINGPrecise heat ranges topower anything fromstreet rods to top fuelcars. Cut back groundelectrode exposesspark for quickeracceleration.

7. SMALL ENGINEShortened side electrodeextends just halfway acrosstip of center electrode(compared to all the wayacross the tip of a standardplug). Designed to resistbridging. Used on avariety of 2- and 4-cycleengines such as powerlawn mowers,snowmobiles,outboard motors, chainsaws, motorcycles, etc.

6. SERIESGAP

Designed to fire underheavy foulingconditions (long idle,low speed running).Used mainly in truckand stationary engineapplications.

5. SHIELDEDSpark plug insulator isenclosed in a metal case.Wires are attached bymeans of water-proofconnectors. Completesealing makes plugswaterproof,explosion-proof, alsoprovides improvedsuppression of radiointerference. Used inmilitary, marine,automotive andindustrial applications.

4. POWER TIPPioneered by Fram GroupAutolite, insulator extendsbeyond the shell into thecombustion chamber.Designed to provideself-cleaning action tovirtually eliminate foulingat low speeds; chargecooling action toreduce the possibilityof pre-ignitionat high speeds.

3. TRANSPORTA large center elect rodeand center insulatorprovide increaseddurability over the life ofthe spark plug inengines operating underfull load (heavy-dutyover-the-road truck andtractor engines).

2. COPPERCORE

The copper coreincreases the rate ofheat conduction inthe spark plug tip andimproves resistance toall types of fouling.

1. RESISTORAnother Fram GroupAutolite firstincorporates aninternal resistor whichminimizes radio andTV interference,reduces electrodeerosion for longer pluglife. Used mainly forautomotive and marine

applications.

Spark Plug Types

Engineered for a

wide array ofspark-ignited

combustion engines.

15. XTREMESTART TM

These premium small enginespark plugs areengineered with an IridiumEnhanced .6mm FinewireDesign for quickerfirst-pull starts, fewermisfires and improvedemmissions and power.

*Compared to standard plugs.

14. XTREMESPORT

These premium small enginespark plugs are engineeredwith an Iridium Enhanced.6mm Finewire Design forbetter overall ignitability,more focused ignition forfaster fuel combustionand reduced fouling.

*Compared to standard plugs.

January 20

Autolite

Autolite

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