Engine
8284 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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Threebond - 1215 - Liquid Gasket Grey 250G
Threebond
$35.95Threebond - 1215 - Liquid Gasket Grey 250GFeaturesSolventless silicone sag type. Use in case to case Where NO GASKET is used.$35.95 -
V-Twin - 40-1872 - M8 Oil Control Valve
V-Twin Mfg
$33.19V-Twin - 40-1872 - M8 Oil Control ValveDescriptionOil control valve for air cooled engines on M8 models. Fits:FLT 2017-UPAdditional Information$33.19 -
V-Twin - 40-0349 - Oil Cooler Set Twin Style Billet Chrome
Wyatt Gatling
$169.51V-Twin - 40-0349 - Oil Cooler Set Twin Style Billet ChromeDescriptionBillet twin cooler set features two independent 1-1/8" diameter cooler canisters with 4 billet clamps for mounting to 1" front...$169.51 -
V-Twin - 11-1337 - 1270cc Cylinder and Piston Conversion Kit Black - Fits 1986-2003 Harley-Davidson XL
V-Twin Mfg
$585.66Big bore cylinder kit for 1200-1270cc conversion on Sportster models.Increase your horsepower with our V-Twin 1270cc big bore conversion kit. Our kit includes 2 black highlighter finished cylinders,...$585.66 -
V-Twin - 11-0359 - Pushrod Cover Kit
Motorshop
$110.50V-Twin - 11-0359 - Pushrod Cover KitDescriptionBlack stock style pushrod cover kit includes a 16 piece set with all the parts needed for complete installation for Evolution Big Twins. Fits:FXST...$110.50 -
Feuling Parts - 7030 - Oil Pump - OE+ - Twin Cam
Feuling
$319.95Feuling Parts - 7030 - Oil Pump - OE+ - Twin CamFeaturesMade of 6061 billet aluminum with high-flow 2" chromoly gerotor gearsOil pumps increase oil pressure and scavenge return volumeFeuling® OE+...$319.95 -
Colony - Upper and Lower Motor Mount Hardware fits '70-'84 Shovelhead Model (OEM #4401W, 4435W)
Colony Machine
$33.95Colony - Upper and Lower Motor Mount Hardware fits '70-'84 Shovelhead Model (OEM #4401W, 4435W) Features: Includes one 7/16" - 20 x 1-1/2" bolt, one 7/16" - 20 nylock nut, three 5/16" OD x 7/16"...$33.95 -
Colony - 8224-8 Rocker Shaft End Plug fits '71-'84 Shovelhead & '71-'85 Sportster Models (OEM #17448-71A, 7875)
Colony Machine
$47.95Colony - 8224-8 Rocker Shaft End Plug fits '71-'84 Shovelhead & '71-'85 Sportster Models (OEM #17448-71A, 7875) Features: Complete sets stock-style replacement rocker shaft end plugs, nuts, and...$47.95 -
Drag Specialties - XL Engine Mount Plates - Fits '86-'03 Sportster Models
Drag Specialties
$90.05Drag Specialties XL Engine Mount Plates These engine mount plates fir Harley Davidson 1986-2003 Sportster XL models, EXCEPT 883C/1200C Models. This part replaces OEM parts 16210-84A, 16212-84A...$90.05 -
S&S Cycle - Piston Cooling Jet Kit fits '17-'25 M8 Models
S&S Cycle
$119.95S&S Cycle - Piston Cooling Jet Kit fits '17-'25 M8 Models The S&S Cycle Piston Cooling Jet Kit is built with patent-pending dual spray technology for uniform piston cooling. There are revised spray...$119.95 -
On Sale
Colony - Rocker Shaft End Plug And Cap Kit - fits '71-Up Shovelhead and '71-'85 XL Models
Colony Machine
MSRP: $46.95Now: $39.99Was: $47.95The Colony Rocker Shaft End Plug and Cap Kit: Meets or exceeds OEM specifications Made in the USA Chrome plated allen style Fitment: '71-Up Shovelhead and '71-'85 XL ModelsMSRP: $46.95Now: $39.99Was: $47.95 -
Out of stock
Cometic - Primary Gasket Kit fits '17-'24 M8 Touring Models
Cometic
$87.10Cometic - Primary Gasket Kit fits '17-'22 M8 Touring Models This kit features Cometic's proprietary AFM (Aluminum Foamette Material) gaskets. These gaskets have an aluminum core with a chemically...$87.10 -
James Gaskets - Gasket O-Ring Kit, Cam Quick Change - fits '99-Up Twin Cams
James Gaskets
$56.95James Gaskets Twin Cam Gasket Kits uses state of the art materials and production methods to make the best gaskets available. Made in the USA Fitment: '99-Up Twin Cam Models$56.95 -
Cometic - C10178 - Cam Change Gasket Kit - M8
Cometic
$39.85Cometic - C10178 - Cam Change Gasket Kit - M8FeaturesComponents made from premium materials for long life and correct fitmentIncludes all necessary gaskets, seals, O-rings and cork washers to do a...$39.85 -
S&S Cycle - Chrome Rocker Box for Harley Evo Big Twin 1984-1999
S&S Cycle
$1,279.95 - $1,659.95S&S Chrome Rocker Box for Harley Evo Big Twin 1984-1999 Chrome rocker box available in billet or die-cast construction. Please be sure to check the fitment table below to ensure it will fit your...$1,279.95 - $1,659.95 -
Feuling Parts - 1077 - Valve Guide Seals - For 0.530" Guide - 5/16" Valve Stem - Screamin' Eagle Cylinder Heads - Fits 0.530" guide (" valve for most Screamin' Eagle heads (4 pk.), " valve for most Screamin' Eagle heads)
Feuling
$15.95Feuling Parts - 1077 - Valve Guide Seals - For 0.530" Guide - 5/16" Valve Stem - Screamin' Eagle Cylinder HeadsFeaturesHigh-quality Viton® valve guide sealsDesigned to handle high engine temperatures...$15.95 -
Colony - Tappet Adjuster Locknuts fits '38-'84 Big Twin (Except Evolution) & '57-'85 Sportster Models
Colony Machine
$11.95Colony - Tappet Adjuster Locknuts fits '38-'84 Big Twin (Except Evolution) & '57-'85 Sportster Models Features: Split locknuts with 9/32"-32 thread Made in the U.S.A.$11.95 -
Colony - Replacement Cylinder Stud Set fits '86-'22 Sportster Models (Except RH Sportster (OEM #16832-86A))
Colony Machine
$88.95Colony - Replacement Cylinder Stud Set fits '86-'22 Sportster Models (Except RH Sportster (OEM #16832-86A)) Features: Heat-treated for strength and durability Equal or surpass original...$88.95 -
Custom Cycle Engineering - Front Motor Mount fits '06-'17 Dyna Models
Custom Cycle Engineering
$543.95Custom Cycle Engineering - Front Motor Mount fits '06-'17 Dyna Models This mount uses an adjustable stabilizing link, which attaches to the frame. Features Motor mount system replaces the...$543.95 -
Feuling - 12-Point External Engine Fastener Kit fits '17-'22 Touring Models
Feuling
$399.95Feuling - 12-Point External Engine Fastener Kit fits '17-'22 Touring Models This kit comes with a cam cover, lifter block covers, rocker covers, case bolts, oil lines, a volt regulator, exhaust...$399.95 -
S&S Cycle - Aluminum Hydraulic Cam Chain Tensioners Kit - fits '07-'17 Twin Cam, '06 Dyna
S&S Cycle
$175.95S&S Cycle - Aluminum Hydraulic Cam Chain Tensioners Kit - fits '07-'17 Twin Cam, '06 Dyna Features: For use in stock 07-17 Twin Cam engines or 99-06 Twin Cam engines with a hydraulic upgrade cam...$175.95 -
Drag Specialties - Rocker Box Kit - Fits '99-'17 Twin Cam Models
Drag Specialties
$326.43Drag Specialties Rocker Box Kit Fits '99-'17 Twin Cam Models With the Drag Rock Box Kit you will get a perfect, leakproof fit! Available in Chrome. Sold Each. Features: Quality construction with...$326.43 -
Jims - Rocker Box Alignment Screws
Jims
$103.10Jims Rocker Box Alignment Screws These alignment screws will ensure that the rocker cover alignment is right on. Misalignment can compromise the sealing surface and looks bad. They can also cause...$103.10 -
On Sale
Colony - Cylinder Stud Set - fits '86-Up XL
Colony Machine
MSRP: $88.95Now: $81.99Was: $88.95Colony cylinder stud set. 8pack Fits: XL 1986-UP EvolutionMSRP: $88.95Now: $81.99Was: $88.95 -
V-Twin - Chrome Pushrod Cover Kit fits '57-E'79 XL Sportster
V-Twin Mfg
$132.34Chrome Pushrod Cover kit includes upper and lower pushrod covers, seals, springs. Fits: XL 1957-1979 Early 1979$132.34 -
Cometic - C9302F1 - Big Twin Cam Cover Gasket Big Twin 1/Pk
Cometic
$8.94Cometic - C9302F1 - Big Twin Cam Cover Gasket Big Twin 1/PkFeaturesAt Cometic Gasket, our goal is to offer the latest in gasket technologyMaterials, manufacturing processes and gasket designs are...$8.94 -
Cometic - C9721 - Head Gasket .030" Twin Cam 2/Pk
Cometic
$59.50Cometic - C9721 - Head Gasket .030" Twin Cam 2/PkFeaturesGlobal Trade Item Number: 191070018085At Cometic Gasket, our goal is to offer the latest in gasket technologyMaterials, manufacturing...$59.50 -
Cometic - C9865 - Rocker Cover Gasket Evo 2/Pk Oe#16800-84B
Cometic
$20.33Cometic - C9865 - Rocker Cover Gasket Evo 2/Pk Oe#16800-84BFeaturesAt Cometic Gasket, our goal is to offer the latest in gasket technologyMaterials, manufacturing processes and gasket designs are...$20.33 -
James Gaskets - 36805-06-X - Gasket Clutch Rel Cover Rcm Twin Cam 6Spd 1Pk 36805-06-X
James Gaskets
$18.95James Gaskets - 36805-06-X - Gasket Clutch Rel Cover Rcm Twin Cam 6Spd 1Pk 36805-06-XFeaturesGenuine James Gaskets uses state of the art materials and production methods to make the best gaskets...$18.95 -
James Gaskets - 17040-92 - Gasket Top End Evo Kit 17040-92
James Gaskets
MSRP: $126.95$121.95James Gaskets - 17040-92 - Gasket Top End Evo Kit 17040-92FeaturesFitment1994-1999Harley DavidsonFLHR Road King1992-1999Harley DavidsonMSRP: $126.95$121.95 -
James Gaskets - 11101-XL - Gasket Oring Pushrod Tube Kit 11101-Xl
James Gaskets
$8.95James Gaskets - 11101-XL - Gasket Oring Pushrod Tube Kit 11101-XlFeaturesGenuine James Gaskets uses state of the art materials and production methods to make the best gaskets availableMade in the U.S...$8.95 -
Colony Machine - 2146-2 - Tappet Oil Screen/Spring Big Twin 70-99
Colony Machine
$8.95Colony Machine - 2146-2 - Tappet Oil Screen/Spring Big Twin 70-99 Features Made in the USA! Meets or exceeds OEM specifications$8.95 -
Kpmi - 20-21300 - Sprng Kit .610 Lift Evo 84-99 Tc '99-04 5/16 Stem Valves
Kibblewhite
$184.99Kpmi - 20-21300 - Sprng Kit .610 Lift Evo 84-99 Tc '99-04 5/16 Stem ValvesFeaturesWound from Premium Kobe Super-Clean Chrome Silicon Wire. KPMI valve springs are heat-treated, stress relieved and...$184.99 -
Kpmi - 20-21255 - Compression Release 2/Pk Twin Cams
Kibblewhite
$49.95Kpmi - 20-21255 - Compression Release 2/Pk Twin CamsFeaturesKPMI® Compression release valves are state of the artDesigned to reduce “hot start” issues and starter/battery loads5-7 Newton’s of closing...$49.95 -
Harddrive - 34-138 - Breather Hose Oem 29476-99 Softail 00-12 Flt 01-07 Fx 01-
HardDrive
$7.16Harddrive - 34-138 - Breather Hose Oem 29476-99 Softail 00-12 Flt 01-07 Fx 01-FeaturesGlobal Trade Item Number: 191361165856Replacement for deteriorated OEM breather hosesSold in pairs$7.16 -
Harddrive - 301776 - Head Bolt Covers Black 4-Pk
HardDrive
$35.96Harddrive - 301776 - Head Bolt Covers Black 4-PkFeaturesGlobal Trade Item Number: 191361121180CNC machined from billet aluminumFit all 1/2", 12 point head bolts on Evo, Twin Cam and Sportster...$35.96 -
Harddrive - 86271 - Intake Manifold Tc 88" 27613-99
HardDrive
$97.16Harddrive - 86271 - Intake Manifold Tc 88" 27613-99FeaturesGlobal Trade Item Number: 191361356124OEM Style Replacement Manifolds with smooth designed portsRecommend replacing intake flanges and...$97.16 -
V-Twin - 49-1965 - UL-ULH Valve Cover Chrome
V-Twin Mfg
$250.69V-Twin - 49-1965 - UL-ULH Valve Cover ChromeDescriptionUL and ULH chrome valve cover, 4 piece.Kit includes retaining clips, lock ring, lower muffle cover retainer, pushrod valve cover spring, upper...$250.69 -
V-Twin - 42-0138 - Prime Rib Natural Cam Cover Trim - Fits 1991-2015 Harley-Davidson XL
V-Twin Mfg
$161.76Natural aluminum prime rib style cam cover trim mounts over existing cam cover with existing screws.Finned cover includes three screws to fit over existing cam cover for the countersunk openings in...$161.76 -
V-Twin - 42-0118 - Chrome Cam Cover - Fits 1993-1998 Harley-Davidson FLT, FXST, 1993-1994 FXR, 1993-1998 FLST, FXD
V-Twin Mfg
MSRP: $72.13$71.41Chrome cam covers kit over stock cam cases on Big Twins. No need to remove the cam case or disturb the cam or gears. Covers are held in place by existing screws. Fits:FLT 1993-1998FXST 1993-1998FXR...MSRP: $72.13$71.41
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.