Engine
8169 parts
Harley engine parts for Evo, Twin Cam, Milwaukee-Eight and Sportster motors. Jump to cams, big bore kits, heads, gaskets and seals or engine covers. Free US shipping over $100.
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Out of stock
Kb Performance - KB660C.STD - Piston Kit - 3.875" Standard - 10.0:1 CR - 103" Twin Cam | 96" Big Bore to 103" w/SE 95 cc Heads
KB Performance
$322.95Kb Performance - KB660C.STD - Piston Kit - 3.875" Standard - 10.0:1 CR - 103" Twin Cam | 96" Big Bore to 103" w/SE 95 cc HeadsFeaturesOffset pin design for quiet operationEach kit contains two...$322.95 -
Out of stock
Kb Performance - KB409C.010 - Piston Kit - 3.875" +0.010" - 10.0:1 CR - 103" Twin Cam | 96" Twin Cam Big Bore
KB Performance
$236.95Kb Performance - KB409C.010 - Piston Kit - 3.875" +0.010" - 10.0:1 CR - 103" Twin Cam | 96" Twin Cam Big BoreFeaturesManufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum...$236.95 -
Out of stock
Kibblewhite - 20-2132M - Valve Guide - 0.5640" OD - Exhaust - Twin Cam | XL
Kibblewhite
$15.10Kibblewhite - 20-2132M - Valve Guide - 0.5640" OD - Exhaust - Twin Cam | XLFeaturesPrecision-machinedGuides can be easily reamed with a battery-operated or electric drill and finished with a...$15.10 -
Out of stock
Kb Performance - PRJ100-4PK - Lock Ring - Twin Cam
KB Performance
$10.95Kb Performance - PRJ100-4PK - Lock Ring - Twin CamFeaturesReplacement piston lock rings for KB Performance Piston KitSpecs$10.95 -
Out of stock
Kibblewhite - 20-20709 - Valve Guide - Exhaust - 0.5720" OD - 88"/96"/103" Twin Cam '05-'17 | XL '04-'22
Kibblewhite
$29.60Kibblewhite - 20-20709 - Valve Guide - Exhaust - 0.5720" OD - 88"/96"/103" Twin Cam '05-'17 | XL '04-'22FeaturesPrecision-machined from copper based C63000 nickel-aluminum bronzeCompatible with...$29.60 -
Out of stock
Klock Werks - KWS-02-0616-C - Oil Cooler Guard - Chrome - M8 Softail
Klock Werks
$64.95Klock Werks - KWS-02-0616-C - Oil Cooler Guard - Chrome - M8 SoftailFeaturesDresses up your oil cooler area using the same material that matches Klock Werks bagger vent screensAdds some needed "pop"...$64.95 -
Out of stock
Fram - PH6022 - Oil Filter - Black - Twin Cam/M8
Fram
$19.09Fram - PH6022 - Oil Filter - Black - Twin Cam/M8FeaturesHigh-quality filters are made to strict specifications to provide superior performanceInclude all necessary o-rings or gasketsMicron rating of...$19.09 -
Out of stock
Fram - PH6017A - Oil Filter
Fram
$20.34Fram - PH6017A - Oil FilterFeaturesIncludes all necessary O-rings and gasketsMicron rating of 10 traps microscopic dirt particles without restricting air flowHigh-quality filter made to strict...$20.34 -
Out of stock
Joker Machine - 921016FC - Inspection Cover - Flame
Joker Machine
$109.95Joker Machine - 921016FC - Inspection Cover - FlameFeaturesChrome-plated with machined silver accentsCNC machined from 6061-T6 billet aluminumIncludes mounting hardwareMade in the USASpecs$109.95 -
Out of stock
Jims - 24022-90 - Gear-Side Pinion Shaft Nut - Fits 1990-1992 Big Twin; repl. OEM #24022-90
Jims
$33.95Jims - 24022-90 - Gear-Side Pinion Shaft Nut Features 5/8"-24 left-hand threads Specs Type$33.95 -
Out of stock
Jims - 24016-80 - Pinion Shaft Nut - 3/4-20 Thread - Fits L1981-1999 Big Twin; repl. OEM #24016-80 (Twin Cam); repl. OEM #24003-55)
Jims
MSRP: $35.95$35.70Jims - 24016-80 - Pinion Shaft Nut - 3/4-20 Thread Features Heavy-duty nut fits flywheel-side of pinion shaft 3/4"-20 thread Made in the U.S.A. Check rod clearance. SpecsMSRP: $35.95$35.70 -
Out of stock
Jims - 1754 - Flow Pro 1 Billet Oil Pump Top Line - Polished
Jims
$808.65Jims - 1754 - Flow Pro 1 Billet Oil Pump Top Line - PolishedFeaturesCNC-machined feed and return gears increase pump flow and return volumePumps include cover, gears, drive shaft, seals, gaskets,...$808.65 -
Out of stock
Jims - 24599-58B - Crankcase Bushing - Big Twin
Jims
$135.30Jims - 24599-58B - Crankcase Bushing - Big Twin Features 360 oiling Made in the U.S.A. Specs$135.30 -
Out of stock
Jims - 1046-36A - Rod Race Set - Big Twin
Jims
$121.75Jims - 1046-36A - Rod Race Set - Big TwinFeaturesMade from 52100 aerospace-quality Timken® bearing stockMade in the U.S.A.Replacement Part for OEM Number(s): 2434536A,2435636ASpecs$121.75 -
Out of stock
Jims - 24006-80/83 - Pinion Gear Shaft - Big Twin
Jims
$160.50Jims - 24006-80/83 - Pinion Gear Shaft - Big TwinFeaturesMade in the U.S.A.SpecsProduct NameGear$160.50 -
Out of stock
Gardner-Westcott - A-61-100 - Head Bolts - Chrome - Fits 1986-1991 XL; 1986-1991 Big Twin
Gardner-Westcott
$128.95Gardner-Westcott - A-61-100 - Head Bolts - ChromeFeaturesInclude four long and four short headboltsMade in the U.S.A.Specs$128.95 -
Out of stock
Gardner-Westcott - A-61-110 - Head Bolt Kit - Chrome - Fits 1999-2017 Twin Cam and 1992-2022 XL (except RH Sportster); 1993-1999 Evolution Big Twin (repl. OEM #s 16480-92 and 16478-85A)
Gardner-Westcott
$128.95Gardner-Westcott - A-61-110 - Head Bolt Kit - ChromeFeaturesInclude four long and four short headboltsMade in the U.S.A.Specs$128.95 -
Out of stock
Gardner-Westcott - SP-10-17-08 - Bolt Kit - Primary Cover Only - Socket-Head
Gardner-Westcott
$54.95Gardner-Westcott - SP-10-17-08 - Bolt Kit - Primary Cover Only - Socket-Head Features Primary cover only Made in the U.S.A. Specs$54.95 -
Out of stock
Gardner-Westcott - SP-10-18-08 - Bolt Kit - Primary Cover Only - Socket-Head
Gardner-Westcott
$65.95Gardner-Westcott - SP-10-18-08 - Bolt Kit - Primary Cover Only - Socket-Head Features Primary cover only Made in the U.S.A. Specs$65.95 -
Out of stock
Gardner-Westcott - P-80-87 - Bolt Kit - Motor Set - Socket-Head
Gardner-Westcott
$309.95Gardner-Westcott - P-80-87 - Bolt Kit - Motor Set - Socket-HeadFeaturesIncludes all side covers, lifter base timing plug, inner primary mount, tip, front and rear motor mountsMade in the U.S.A.Specs$309.95 -
Out of stock
Gardner-Westcott - SP-80-87 - Bolt Kit - Motor Set - Socket-Head
Gardner-Westcott
$271.95Gardner-Westcott - SP-80-87 - Bolt Kit - Motor Set - Socket-HeadFeaturesIncludes all side covers, lifter base timing plug, inner primary mount, tip, front and rear motor mountsMade in the U.S.A.Specs$271.95 -
Out of stock
Gardner-Westcott - P-88-15 - Bolt Kit - Rocker Box - Socket-Head - Chrome - Twin Cam
Gardner-Westcott
$50.95Gardner-Westcott - P-88-15 - Bolt Kit - Rocker Box - Socket-Head - Chrome - Twin Cam Features Made in the U.S.A. Specs$50.95 -
Out of stock
Gardner-Westcott - P-10-17-01 - Bolt Kit - Side Cover - Socket-Head - Chrome
Gardner-Westcott
$153.95Gardner-Westcott - P-10-17-01 - Bolt Kit - Side Cover - Socket-Head - ChromeFeaturesIncludes cam, primary, oil hose cover and transmission side coverMade in the U.S.A.Specs$153.95 -
Out of stock
Gardner-Westcott - P-10-18-06 - Bolt Kit - Cam Cover - Socket-Head - Chrome - Twin Cam
Gardner-Westcott
$35.95Gardner-Westcott - P-10-18-06 - Bolt Kit - Cam Cover - Socket-Head - Chrome - Twin CamFeaturesMade in the U.S.A.Specs$35.95 -
Out of stock
Gardner-Westcott - P-88-79 - Bolt Kit - Motor Set - Socket-Head - Softail
Gardner-Westcott
$331.95Gardner-Westcott - P-88-79 - Bolt Kit - Motor Set - Socket-Head - SoftailFeaturesIncludes all side covers, lifter base timing plug, inner primary mount, tip, front and rear motor mountsMade in the U...$331.95 -
Out of stock
Gardner-Westcott - P-10-14-01 - Bolt Kit - Side Cover - Socket-Head - Chrome
Gardner-Westcott
$176.95Gardner-Westcott - P-10-14-01 - Bolt Kit - Side Cover - Socket-Head - ChromeFeaturesIncludes cam, primary, oil hose cover and transmission side coverMade in the U.S.A.Specs$176.95 -
Out of stock
Gardner-Westcott - P-96-76 - Bolt Kit - Motor Set - Socket-Head - Softail
Gardner-Westcott
$311.95Gardner-Westcott - P-96-76 - Bolt Kit - Motor Set - Socket-Head - SoftailFeaturesIncludes all side covers, lifter base timing plug, inner primary mount, tip, front and rear motor mountsMade in the U...$311.95 -
Out of stock
Gardner-Westcott - C-20-37 - Bolt Kit - Timing Cover - Socket-Head - Chrome
Gardner-Westcott
$6.95Gardner-Westcott - C-20-37 - Bolt Kit - Timing Cover - Socket-Head - Chrome Features Made in the U.S.A. Specs$6.95 -
Out of stock
Gardner-Westcott - P-96-19 - Bolt Kit - Motor Mount - Top/Front/Rear - Socket-Head - Chrome
Gardner-Westcott
$127.95Gardner-Westcott - P-96-19 - Bolt Kit - Motor Mount - Top/Front/Rear - Socket-Head - Chrome Features Made in the U.S.A. Specs$127.95 -
Out of stock
Gardner-Westcott - P-48-17 - Bolt Kit - Motor Set - Socket-Head - M8
Gardner-Westcott
$298.95Gardner-Westcott - P-48-17 - Bolt Kit - Motor Set - Socket-Head - M8FeaturesIncludes all side covers, lifter base timing plug, inner primary mount, tip, front and rear motor mountsMade in the U.S.A...$298.95 -
Out of stock
Jims - 5462 - Forceflow Cylinder Head Cooler Kit - Chrome - Twin Cam Touring
Jims
$750.10Jims - 5462 - Forceflow Cylinder Head Cooler Kit - Chrome - Twin Cam TouringFeaturesIncludes Forceflow assembly with high-powered fan, OEM-type replacement horn, temperature switch, manual override...$750.10 -
Out of stock
Jims - 6020 - Tappet Cover Kit - Black - M8
Jims
$310.25Jims - 6020 - Tappet Cover Kit - Black - M8FeaturesMade from 6061 billet aluminumCovers were designed to be installed with Twin Cam pushrod covers, they will not work with standard M-Eight pushrod...$310.25 -
Out of stock
Feuling Parts - 7474 - HP+® Oiling System/Camchest Kit - Twin Cam
Feuling
$1,429.95Feuling Parts - 7474 - HP+® Oiling System/Camchest Kit - Twin CamFeaturesFreshen up camchest and oiling system on late model Twin Cam enginesKit uses existing camshafts or allows purchase of...$1,429.95 -
Out of stock
Feuling Parts - 7075 - Performance Oil System - Twin Cam
Feuling
$1,029.95Feuling Parts - 7075 - Performance Oil System - Twin CamFeaturesCombine all the needed components to finish your T/C® engine's oiling systemKit increases oil pressure, oil volume, engine oil flow and...$1,029.95 -
Out of stock
Feuling Parts - 7070 - HP+® Performance Oil System - Twin Cam
Feuling
$819.95Feuling Parts - 7070 - HP+® Performance Oil System - Twin CamFeaturesCombine all the needed components to finish your T/C® engine's oiling systemQuieter and smoother engine operationIncrease oil...$819.95 -
Out of stock
Feuling Parts - 4019 - Lifters - Race Series® - Oversize - M8
Feuling
$299.95Feuling Parts - 4019 - Lifters - Race Series® - Oversize - M8FeaturesFull-travel hydraulic lifters made from machined steel designed with .200" of travelExceed the needs of large-lift camshafts and...$299.95 -
Out of stock
Feuling Parts - 7271 - Camchest - Race Series® - Reaper 538 - Twin Cooled - M8
Feuling
$2,049.95Feuling Parts - 7271 - Camchest - Race Series® - Reaper 538 - Twin Cooled - M8FeaturesFitment notes:Requires high lift valve springs.Specs$2,049.95 -
Out of stock
Feuling Parts - 7270 - Camchest - Race Series® - Reaper 538 - Oil Cooled - M8
Feuling
$2,049.95Feuling Parts - 7270 - Camchest - Race Series® - Reaper 538 - Oil Cooled - M8FeaturesFitment notes:Requires high lift valve springs.Specs$2,049.95 -
Out of stock
Feuling Parts - 7235ST - Camchest Kit - Race Series® - Reaper 594 - Chain Drive - w/Short Travel Lifters - Twin Cam '07-'17
Feuling
$1,895.95Feuling Parts - 7235ST - Camchest Kit - Race Series® - Reaper 594 - Chain Drive - w/Short Travel Lifters - Twin Cam '07-'17FeaturesEliminate wet sumping, blowby and oily air cleaners25 - 35 cooler...$1,895.95 -
Out of stock
Feuling Parts - 7233P - Camchest Kit - HP+® - 543 Series - Gear Drive - Twin Cam
Feuling
$1,649.95Feuling Parts - 7233P - Camchest Kit - HP+® - 543 Series - Gear Drive - Twin CamFeaturesAll necessary components from top-to-bottom of the camchestProvide maximum reliability, longevity, peak...$1,649.95
About Engine
Harley Engine Parts for Rebuilds and Performance
From a fresh gasket set to a full big bore build, we stock the Harley engine parts you need to rebuild, maintain or wake up your motor. Match parts to your engine: Evo, Twin Cam, Milwaukee-Eight and Sportster parts don't swap across.
Shop Engine Parts
- Camshafts
- Big bore kits
- Cylinders
- Heads
- Pushrods
- Lifters
- Rockers
- Gaskets & seals
- Oil pumps
- Oil filters
- Motor mounts
- Engine covers
We carry engine parts from S&S Cycle, Drag Specialties, V-Twin Mfg, Alloy Art, HardDrive and Rocker Lockers. Pair your build with an air cleaner and exhaust that let it breathe.
Not Sure It Fits?
Year, model and engine all matter, and plenty of parts look the same but aren't. If you can't tell whether something fits your bike, hit us up with your year and model and we'll check it before you order.