Engine
7735 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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Performance Machine - Vision Cam Covers - fits '17-Up M8 Models
Performance Machine
$519.95 - $571.95Performance Machine - Vision Cam Covers - fits '17-Up M8 Softail Models The Vision Cam Covers from Performance Machine feature a special polycarbonate lens for a glimpse inside the machine!...$519.95 - $571.95 -
Jagg - Vertical Front Mount 10-Row Wideline Oil Cooler System
Jagg Oil Coolers
$449.95 - $574.95Jagg - Vertical Front Mount 10-Row Wideline Oil Cooler System This 10-row, high-performing two-pass oil cooler is built to fit all bike with vertical frame tubes. It is specifically designed to...$449.95 - $574.95 -
Drag Specialties - Chrome Tappet Block Cover fits '17 & Up Harley M8 Model Repl. OEM #25700410/25700411
Drag Specialties
$109.13Drag Specialties - Chrome Tappet Block Cover fits '17 & Up Harley M8 Model Repl. OEM #25700410/25700411 Features Made from die-cast aluminum Includes gaskets and screws$109.13 -
10% OFF
Arlen Ness - 10-Gauge Pushrod Tube Kits for '17-'25 M8 Softail Engines
Arlen Ness
$103.48 - $229.95Arlen Ness - 10-Gauge Pushrod Tube Kits for '17-'25 M8 Softail Engines The Arlen Ness 10-Gauge Pushrod Tube Kits are built from 6061-T6 billet aluminum and are sold in a set of four. Available in...$103.48 - $229.95 -
S&S Cycle - Chain-Drive Camchest Kits W/ 551CE Easy Start Cams for '99-'17 Twin Cam
S&S Cycle
MSRP: $2,225.95$2,025.95S&S Cycle - Chain-Drive Camchest Kits W/ 551CE Easy Start Cams for '99-'17 Twin Cam This camchest kit is available in two different fitments: (1) For '07-'17 Twin Cam and '06 Dyna, or (2) For...MSRP: $2,225.95$2,025.95 -
Feuling - 574 HP+® Chain Drive Conversion Camchest Kits for '99-'06 Twin Cam (Except '06 Dyna Glide)
Feuling
$1,939.95Feuling - 574 HP+® Chain Drive Conversion Camchest Kits for '99-'06 Twin Cam (Except '06 Dyna Glide) NOTE: Conversion camshafts for '99-'06 Twin Cam engines use the '99-'06 inner cam journals with...$1,939.95 -
Feuling - OE+ 543 Hydraulic Cam Chain Conversion Camchest Kit for '99-'06 Twin Cam (Except '06 Dyna Glide)
Feuling
$1,839.95Feuling - OE+ 543 Hydraulic Cam Chain Conversion Camchest Kit for '99-'06 Twin Cam (Except '06 Dyna Glide) Features Feuling® complete camchest kits include all necessary components from top to...$1,839.95 -
Feuling - Race Series® 465 Camchest Kit fits '17-Up M8 Oil-Cooled Motors
$1,979.95Feuling - Race Series® 465 Camchest Kit fits '17-Up M8 Oil-Cooled Motors Features Quieter and smoother engine operation Increase oil pressure, scavenge volume and engine oil flow 15-35 degree...$1,979.95 -
Feuling - 12-Point External Primary Engine Bolt Fastener Kit fits '04-'20 Sportster Models
$149.95Feuling - 12-Point External Primary Engine Bolt Fastener Kit fits '04-'20 Sportster Models The 12-Point External Primary Engine Bolt Fastener Kit allows you to secure your engine with complete...$149.95 -
Colony Machine - Motor Mount Bolt Covers fits '00-'17 Softail Models
Colony Machine
$28.95Colony Machine - Motor Mount Bolt Covers fits '00-'17 Softail Models The Colony Machine Motor Mount Bolt Covers have a smooth finish and are 100% manufactured in the U.S.A. Colony Machine is one of...$28.95 -
Roland Sands Design Clarity Cam Cover - fits '17-'19 M-Eight
Roland Sands Design
$571.95Roland Sands Design Clarity Cam Cover - fits '17-'19 M-Eight Features: Allows for viewing of the internal moving engine components CNC-machined from billet aluminum Hardware included Contrast...$571.95 -
S&S Pushrod Tube Keepers - fits '17-'19 M-Eight
S&S Cycle
$40.95S&S Pushrod Tube Keepers - fits '17-'19 M-Eight Features: For use in custom applications where stock keepers won't fit. Chromed steel finish Sold in kits of four assemblies; enough for one...$40.95 -
Trask Assault Series Cam Covers - fits '01-'17 Twin Cam w/o Cam Position Sensor
Trask Performance
$429.95Trask Assault Series Cam Covers - fits '01-'17 Twin Cam w/o Cam Position Sensor Available in Chrome, Gloss Black, and Raw Machined. Features: Transparent for viewing internal engine...$429.95 -
Feuling - Dress Up Fastener Kit - fits '18 Softail
$199.95Feuling Dress Up Fastener Kit for 2018 Harley Softail This Chassis Dress-up Kit includes rear fender bracket, battery box side cover, shifter linkage, shifter arm w/nut and washer, and rear brake...$199.95 -
James Gaskets - Oil Pump Seal Kit w/ Metal Gaskets - fits '92-'99 Evolution
James Gaskets
$18.95James Gaskets Gasket Kits use state of the art materials and production methods to make the best gaskets available. Made in the USA Fitment: '92-'99 Evolution$18.95 -
On Sale
Feuling - Oil Pumps - fits '07-'15 Twin Cam (inc. '06 Dyna)
MSRP: $507.95Now: $499.99Was: $507.95Fueling Oil Pumps : 7075 billet aluminum with military spec hard anodized, blue printed and designed for the racer The 7075 alloy is 50% harder and stronger then 6061 aluminum and holds tighter...MSRP: $507.95Now: $499.99Was: $507.95 -
On Sale
Feuling - Fast Install Push Rods - fits '85-'99 Evo Big Twin
MSRP: $259.95Now: $239.99Was: $259.95Feuling - Fast Install Push Rods - fits '85-'99 Evo Big Twin Adjustable pushrods have a slightly shorter tapered tube and comes dissassembled allowing to install the pushrods without removing the...MSRP: $259.95Now: $239.99Was: $259.95 -
Colony - 8138-34 Cadmium Stock Engine Case Bolt Kit fits '65-'69 FL Model
Colony Machine
$63.72Colony - 8138-34 Cadmium Stock Engine Case Bolt Kit fits '65-'69 FL Model Engine case kit includes all the necessary hardware to bolt together engine cases. Fitment: FL 1965-1969$63.72 -
On Sale
Colony - Engine Case Seal - fits '55-'68 FL
Colony Machine
MSRP: $53.20Now: $46.99Was: $56.88Engine case seal .002 oversize. Fits: FL 1955-1968MSRP: $53.20Now: $46.99Was: $56.88 -
Colony - 8107-16 Cadmium Cylinder Base Nuts and Washers fits '29-'52 WL, '57-'85 XL, '32-'73 G Models
Colony Machine
$24.34Colony - 8107-16 Cadmium Cylinder Base Nuts and Washers fits '29-'52 WL, '57-'85 XL, '32-'73 G Models Cadmium stock cylinder base set includes 8 nuts & washers. Fitment: WL 1929-1952 XL...$24.34 -
On Sale
Colony - Cylinder Base Nut Set - Chrome fits '57-'84 XLR
Colony Machine
Now: $39.99Was: $44.22Colony C chrome cylinder base nuts. Fits: XLR 1957-1984Now: $39.99Was: $44.22 -
On Sale
Colony - Tappet Base Allen Screws - Chrome fits '57-'84 XL
Colony Machine
MSRP: $16.98Now: $14.99Was: $16.81Tappet base allen screws. Chrome finish Fits: XL 1957-1984MSRP: $16.98Now: $14.99Was: $16.81 -
On Sale
Colony - Rocker Shaft End Caps - Chrome fits Harley FL, FX, and XL (see desc.)
Colony Machine
Now: $41.99Was: $46.23Rocker shaft end caps, chrome finish. Fits: FL 1971-1984 FX 1971-1984 FLT 1979-1983 FXR 1982-1983 XL 1971-1985Now: $41.99Was: $46.23 -
Colony - Rocker Shaft End Plugs - fits '66-'70 FL, '57-'70 XL
Colony Machine
$39.99The chrome rocker arm shaft end plug makes installation and removal a much easier job than with the original slotted part. Includes 4 plugs per set. Fits: FL 1966-1970 XL 1957-1970$39.99 -
V-Twin - Blacked Out Rocker Box Cover Set fits '07-'12 XL Sportster
V-Twin Mfg
$492.45Harley Sportster Rocker box cover set with black finish. Fits: XL 2007-2012$492.45 -
S&S Cycle - Piston Kit - Shovelhead - Fits 1966-1984 Electra Glide / Street Glide, 1983 Dyna, 1982-1983 FXR, 1966-1984 Big Twin
S&S Cycle
$410.95S&S Cycle Piston Kit - Shovelhead Fits: 1966-1984 Electra Glide / Street Glide, 1983 Dyna, 1982-1983 FXR, 1966-1984 Big Twin Harley-Davidson. Full year/model list is on the Fitment tab. S&S Cycle's...$410.95 -
Samco Sport - Radiator Hose Kit - Harley-Davidson - Fits 2017-2022 Electra Glide / Street Glide, 2017-2022 Road Glide, 2017-2022 Road King
Samco Sport
$132.95Samco Sport Radiator Hose Kit - Harley-Davidson Fits: 2017-2022 Electra Glide / Street Glide, 2017-2022 Road Glide, 2017-2022 Road King Harley-Davidson. Full year/model list is on the Fitment tab...$132.95 -
Revolution Performance - Cylinder Kit - Big Bore - Natural Silver - Evolution Big Twin - Fits 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King & More
Revolution Performance
$1,479.95Revolution Performance Cylinder Kit - Big Bore - Natural Silver - Evolution Big Twin Fits: 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King, 1984-1999 Softail, 1991-1998...$1,479.95 -
Terry Components - Solenoid Cover - 1.6 kW
Terry Components
$51.90Terry Components Solenoid Cover - 1.6 kW Fits: Universal application. Check the Specs tab for dimensions before you order. Terry Components' Solonoid Cover. Replacement starter solenoid cover...$51.90 -
S&S Cycle - Top End Gasket Kit - Shovelhead - Fits 1966-1984 Electra Glide / Street Glide, 1983 Dyna, 1982-1983 FXR & More
S&S Cycle
$203.95 - $205.95S&S Cycle Top End Gasket Kit - Shovelhead Fits: 1966-1984 Electra Glide / Street Glide, 1983 Dyna, 1982-1983 FXR, 1966-1984 Big Twin Harley-Davidson. Full year/model list is on the Fitment tab. S&S...$203.95 - $205.95 -
S&S Cycle - Piston Kit - For 80" Stock or S&S Heads - 3.500" - Fits 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King & More
S&S Cycle
$169.95S&S Cycle Piston Kit - For 80" Stock or S&S Heads - 3.500" Fits: 1984-1998 Electra Glide / Street Glide, 1998 Road Glide, 1994-1998 Road King, 1984-1999 Softail, 1991-1998 Dyna, 1999 FXR, 1986-1999...$169.95 -
S&S Cycle - Replacement Piston Rings - Set
S&S Cycle
$54.95S&S Cycle Replacement Piston Rings - Set Fits: Universal application. Check the Specs tab for dimensions before you order. S&S Cycle's Replacement Ring Set for S&S Pistons. Replacement ring sets for...$54.95 -
Arlen Ness - Bolt Kit - Crankcase / Engine Case - Titanium - 12-Point - Fits 2017-2026 Road Glide, 2018-2025 Softail
Arlen Ness
$68.95Arlen Ness Bolt Kit - Crankcase / Engine Case - Titanium - 12-Point Fits: 2017-2026 Road Glide, 2018-2025 Softail Harley-Davidson. Full year/model list is on the Fitment tab. Arlen Ness' Engine Case...$68.95 -
Arlen Ness - Bolt Kit - Clutch Cover - Titanium - 12-Point - M8 Gen 2 - Fits 2023-2025 Electra Glide / Street Glide, 2023-2025 Road Glide, 2025 Softail
Arlen Ness
$69.95Arlen Ness Bolt Kit - Clutch Cover - Titanium - 12-Point - M8 Gen 2 Fits: 2023-2025 Electra Glide / Street Glide, 2023-2025 Road Glide, 2025 Softail Harley-Davidson. Full year/model list is on the...$69.95 -
Kodlin - Master Cylinder Cover - Fits 2023-2026 Electra Glide / Street Glide, 2023-2026 Road Glide
Kodlin
$49.99Kodlin Master Cylinder Cover Fits: 2023-2026 Electra Glide / Street Glide, 2023-2026 Road Glide Harley-Davidson. Full year/model list is on the Fitment tab. Kodlin's Master Cylinder Cover. CNC...$49.99 -
S&S Cycle - 50-1007 - Supply/Return Elbow - 90° - 5-Pack
S&S Cycle
$61.95S&S Cycle Supply/Return Elbow - 90° - 5-Pack Fits: Universal application. Check the Specs tab for dimensions before you order. S&S Cycle's Supply/Return Line Elbow. Made in the USA. Features Made in...$61.95 -
Darkhorse - DH-PR-B - Pinion Race - Crowned - Oversized
Darkhorse Motor Company
$59.50Darkhorse Pinion Race - Crowned - Oversized Fits: Universal application. Check the Specs tab for dimensions before you order. Darkhorse's Crowned Pinion Races. Accommodates inherent crankshaft...$59.50 -
Darkhorse - DH-ESUA-K - Adapter Kit - Engine Stand - Harley Davidson TC/EVO/Shovel/M8
Darkhorse Motor Company
$99.95Darkhorse Adapter Kit - Engine Stand - Harley Davidson TC/EVO/Shovel/M8 Fits: Universal application. Check the Specs tab for dimensions before you order. Darkhorse's Adapter Kit for Harley Davidson®...$99.95 -
Darkhorse - DH-ESM8-K - Engine Stand - Black - Harley Davidson M8
Darkhorse Motor Company
$133.95Darkhorse Engine Stand - Black - Harley Davidson M8 Fits: Universal application. Check the Specs tab for dimensions before you order. Darkhorse's Engine Stand for Harley Davidson® M8. Precision laser...$133.95 -
Darkhorse - DH-PR-A - Pinion Race - Crowned - Standard
Darkhorse Motor Company
$58.50Darkhorse Pinion Race - Crowned - Standard Fits: Universal application. Check the Specs tab for dimensions before you order. Darkhorse's Crowned Pinion Races. Accommodates inherent crankshaft...$58.50
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.