Progressive Suspension - 11-1120 - Front Fork Springs - 23.00 mmFeaturesProgressive springs offer a soft initial spring rate for a plush rideProgressively wound design provides increased resistance to bottoming as spring compressesImprove handling while...

Progressive Suspension - 412-4030C - 412 Series Shock - 11" - Standard - Chrome - H-DFeaturesDesigned specifically for Harley modelsThe 412's simple, durable design makes them a cost effective improvement to your motorcycle's suspension performanceA five...

Progressive Suspension - 412-4013C - 412 Series Shock - 12" - Standard - Chrome - H-DFeaturesDesigned specifically for Harley modelsThe 412's simple, durable design makes them a cost effective improvement to your motorcycle's suspension performanceA five...

S&S Cycle - 33-4275 - 4 Gear Cam Gear Drive Kit - Twin CamFeaturesA four-gear set is required for gear-driven cams that do not come with secondary cam gears; includes two secondary cam gears, outer cam drive gear, outer pinion drive gear and mounting...

S&S Cycle - 33-5175 - Cam Install Kit - Chain Drive Features Kits include all required parts needed when servicing or changing gear- or chain-drive cams in a Twin Cam motor Made in the U.S.A. Specs Style Chain...

S&S Cycle - 33-5058 - Camshaft - 600 - Evolution Big Twin Features S&S Cams are tested on the dyno, street and track before being offered to the public With hundreds of hours of testing on each cam, you know you are getting the best cam...

S&S Cycle - 33-5076 - Camshaft - 561 - Evolution Big Twin Features S&S Cams are tested on the dyno, street and track before being offered to the public With hundreds of hours of testing on each cam, you know you are getting the best cam...

S&S Cycle - 33-5073 - Camshaft - 520 - Evolution Big Twin Features S&S Cams are tested on the dyno, street and track before being offered to the public With hundreds of hours of testing on each cam, you know you are getting the best cam...

S&S Cycle - 92-1200 - Piston Kit - For 95" Big Bore Kit - 3.875" - StandardFeaturesPiston kit includes forged pistons (unless noted) rings, wrist pins and clips for a complete motor replacementMade in the U.S.ASpecsPiston MaterialForgedUnitsKitProduct...

Pro-One Perf.Mfg. - 600239 - Brake Rotor - 11.5" - RearFeaturesHighly polished 11.5" rotors with directional holesSpecsOutside Diameter292 mm (11,5'')Color/FinishSilverProduct NameBrake RotorTypeOne Piece (Fixed)Mounting PositionRearOutside Diameter...

Pro-One Perf.Mfg. - 600259 - Brake Rotor - 11.5" - RearFeaturesHighly polished 11.5" rotors with directional holesSpecsMaterialStainless SteelProduct NameBrake RotorMounting PositionRear RightOutside Diameter Metric292 mmRiding...

Pro-One Perf.Mfg. - 600249 - Brake Rotor - 11.5" - FrontFeaturesHighly polished 11.5" rotors with directional holesSpecsMaterialStainless SteelOutside Diameter Imperial11.5''Outside Diameter292 mm (11,5'')Outside Diameter Metric292...

Progressive Suspension - 412-4035C - 412 Series Shock - 12" - Standard - Chrome - H-DFeaturesDesigned specifically for Harley modelsThe 412's simple, durable design makes them a cost effective improvement to your motorcycle's suspension performanceA five...

S&S Cycle - 33-4146 - Pinion GearFeaturesHigh-quality pinion gears are carefully machined, heat-treated and then finish groundMade in the U.S.A.SpecsProduct NameGearRiding StyleStreetUnitsEachSize Imperial1.4715'' - 1.4721''TypePinionFitment1977-1980...

S&S Cycle - 31-0000 - Engine Case -Super Stock® - 3.500" - Evolution Big TwinFeatures3.5" stock bore cylinder case for any stroke up to and including 5" and most stock length connecting rodsMachined to accept an oil filter assembly that mounts on the...

S&S Cycle - 33-4144 - Pinion GearFeaturesHigh-quality pinion gears are carefully machined, heat-treated and then finish groundMade in the U.S.A.SpecsTypePinionProduct NameGearUnitsEachRiding StyleStreetSize Imperial1.4729'' - 1.4737''Fitment1977-1980...

S&S Cycle - 33-4260 - Breather Gear - +.030"FeaturesKit comes with gear and spacerRequire the use of corresponding cam and pinion gearMade in the U.S.A.SpecsUnitsKitFeaturesOversized (+.03'')Product NameGearTypeBreatherRiding StyleStreetFitment1977-1980...

S&S Cycle - 31-0001 - Engine Case - Super Stock® Big Bore - 3.625" - Evolution Big TwinFeatures3.625" big bore cylinder case for any stroke up to and including 5" and most stock length connecting rodsMachined to accept an oil filter assembly that mounts...

S&S Cycle - 31-0005 - Engine Case - Super Stock® - 3.500" - Evolution Big TwinFeatures3.5" stock bore cylinder case for any stroke up to and including 5" and most stock length connecting rodsMachined to accept an oil filter assembly that mounts on the...

S&S Cycle - 33-4145 - Pinion GearFeaturesHigh-quality pinion gears are carefully machined, heat-treated and then finish groundMade in the U.S.A.SpecsSize Imperial1.4721'' - 1.4729''UnitsEachRiding StyleStreetTypePinionProduct NameGearFitment1977-1980...

S&S Cycle - 33-4143 - Pinion GearFeaturesHigh-quality pinion gears are carefully machined, heat-treated and then finish groundMade in the U.S.A.SpecsRiding StyleStreetTypePinionUnitsEachSize Imperial1.4737'' - 1.4745''Product NameGearFitment1977-1980...

S&S Cycle - 33-4232 - Oil Pump Drive Gear Features Must be used as a set or with OEM equivalents Made in the U.S.A. Specs Units Each Product Name Drive Gear Riding Style Street Type Oil...

S&S Cycle - 33-4250 - Steel Breather GearFeaturesKit comes with gear and spacerRequire the use of corresponding cam and pinion gearMade in the U.S.A.Replacement Part for OEM Number(s): 2531377,2531377A,2531377BSpecsFeaturesStandardUnitsKitRiding...

S&S Cycle - 33-4230 - Oil Pump Drive Gear 24 ToothFeaturesHardware, check balls, retainers, etc. are available for Big Twin oil pumpsSpecsProduct NameGearRiding StyleStreetTypeOil PumpUnitsEachFitment1973-1980 Harley-Davidson 1200 Electra Glide...

S&S Cycle - 34-7013 - Connecting Rod - EvolutionFeaturesHigh-quality, heavy duty rod sets come complete and ready to installSet includes front and rear rods, crankpin and nuts, steel cages and roller bearingsRods are deep-forged and heat-treated, 0.120"...

S&S Cycle - 90-4049 - Rocker Box Gasket KitFeaturesIncludes all required gaskets and O-rings for both rocker boxesSpecsRiding StyleStreetFeaturesFor '84 - '99 Evolution-Style Big TwinProduct NameGasket KitFeatures4-Bolt StyleTypeRocker...

S&S Cycle - 90-4073 - Rocker Box Gasket - Big TwinFeaturesIncludes all required gaskets and O-rings for both rocker boxesSpecsRiding StyleStreetFeaturesFor '99 - '06 Big Twin Cam S&S Rocker BoxesProduct NameGasket KitTypeRocker BoxUnitsKitFeatures6-Bolt...

S&S Cycle - 11-0442 - Super E Carburetor Kit - Evolution Big TwinFeaturesKit includes a carburetor with updated fuel delivery pots and idle screws, teardrop air cleaner assembly, mounting hardware, fuel line, clamps, overflow line, one extra intermediate...

S&S Cycle - 11-0440 - Super E Carburetor Kit - Evolution Big TwinFeaturesKit includes a carburetor with updated fuel delivery pots and idle screws, teardrop air cleaner assembly, mounting hardware, fuel line, clamps, overflow line, one extra intermediate...

S&S Cycle - 92-1412 - Piston Kit - For 113" Super Sidewinder® - 4.000" - +0.020"FeaturesPiston kit includes forged pistons (unless noted) rings, wrist pins and clips for a complete motor replacementMade in the U.S.ASpecsUnitsKitProduct NamePiston...

S&S Cycle - 92-1411 - Piston Kit - For 113" Super Sidewinder® - 4.000" - +0.010"FeaturesPiston kit includes forged pistons (unless noted) rings, wrist pins and clips for a complete motor replacementMade in the U.S.ASpecsDisplacement113''Piston Head...

S&S Cycle - 92-1061 - Piston Kit - For 88"/93"/96" Super Stock® Heads - 3.625" - +0.010"FeaturesPiston kit includes forged pistons (unless noted) rings, wrist pins and clips for a complete motor replacementMade in the U.S.ASpecsBore -...

S&S Cycle - 92-1410 - Piston Kit - For 113" Super Sidewinder® - 4.000" - StandardFeaturesPiston kit includes forged pistons (unless noted) rings, wrist pins and clips for a complete motor replacementMade in the U.S.ASpecsBore - OversizeStandardProduct...

S&S Cycle - 92-1402 - Piston Kit - For 100"/107" Super Sidewinder® - 4.000" - +0.020"FeaturesPiston kit includes forged pistons (unless noted) rings, wrist pins and clips for a complete motor replacementMade in the U.S.ASpecsDisplacement107''Piston Head...

S&S Cycle - 92-1401 - Piston Kit - For 100"/107" Super Sidewinder® - 4.000" - +0.010"FeaturesPiston kit includes forged pistons (unless noted) rings, wrist pins and clips for a complete motor replacementMade in the U.S.ASpecsProduct NamePiston KitBore...

S&S Cycle - 92-1400 - Piston Kit - For 100"/107" Super Sidewinder® - 4.000" - StandardFeaturesPiston kit includes forged pistons (unless noted) rings, wrist pins and clips for a complete motor replacementMade in the U.S.ASpecsPiston Head ShapeFlat...

S&S Cycle - 92-1062 - Piston Kit - For 88"/93"/96" Super Stock® Heads - 3.625" - +0.020"FeaturesPiston kit includes forged pistons (unless noted) rings, wrist pins and clips for a complete motor replacementMade in the U.S.ASpecsBore -...

S&S Cycle - 92-1060 - Piston Kit - For 88"/93"/96" Super Stock® Heads - 3.625" - StandardFeaturesPiston kit includes forged pistons (unless noted) rings, wrist pins and clips for a complete motor replacementMade in the U.S.ASpecsBore Size Imperial3...

S&S Cycle - 90-9507 - Top End Gasket Kit - 3.5" - EVO Big TwinFeaturesContains the best quality gasketsMade in the USATop-end gasket kit do not include rocker box gaskets; must be purchased separately.SpecsRiding StyleStreetTypeTop EndUnitsKitProduct...

S&S Cycle - 90-9506 - Top End Gasket Kit - 4-1/8" - EVO Big TwinFeaturesContains the best quality gasketsMade in the USATop-end gasket kit do not include rocker box gaskets; must be purchased separately.SpecsRiding StyleStreetTypeTop EndProduct...