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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Out of stock
V-Twin - 11-0241 - Replica 883cc Piston Set Standard
Motorshop
$144.99V-Twin - 11-0241 - Replica 883cc Piston Set StandardDescriptionReplica 3" bore piston set is standard size. Set includes Hastings 3 piece ring, 2 wrist pins and 4 circlips.**Note: Run engine at...$144.99 -
Out of stock
V-Twin - 11-0220 - Replica 74 inch Overhead Valve Piston Set .040 Oversize
Motorshop
$156.33V-Twin - 11-0220 - Replica 74 inch Overhead Valve Piston Set .040 OversizeDescriptionReplica style 3-7/16" bore piston set has a 8.5:1 compression ratio and is oversize .040. Piston set includes...$156.33 -
Out of stock
V-Twin - 11-0213 - Replica 1000cc Piston Set .050 Oversize
Motorshop
$135.41V-Twin - 11-0213 - Replica 1000cc Piston Set .050 OversizeDescriptionReplica style 3-3/16" bore piston set has a 9:1 compression ratio and is oversize .050. Piston set alloy is cast in a permanent...$135.41 -
Out of stock
V-Twin - 11-0206 - Replica 900cc Piston Set .060 Oversize
Motorshop
$144.65V-Twin - 11-0206 - Replica 900cc Piston Set .060 OversizeDescriptionReplica style 3" bore piston set has a 9:1 compression ratio and is oversize .060. Piston set alloy is cast in a permanent steel...$144.65 -
Out of stock
V-Twin - 11-0163 - 883cc Piston Ring Set .020 Oversize
Motorshop
MSRP: $44.82$43.92V-Twin - 11-0163 - 883cc Piston Ring Set .020 OversizeDescriptionPiston ring set is for a 3" bore & .020 oversize. Features moly top compression rings with a size of 1.5mm and chrome oil rings with...MSRP: $44.82$43.92 -
Out of stock
V-Twin - 11-0121 - 74 inch FL Piston Ring Set .040 Oversize
Hastings
$98.77V-Twin - 11-0121 - 74 inch FL Piston Ring Set .040 OversizeDescriptionHastings cast piston ring set is for a 3-7/16" bore and is .040 oversize.Features compression rings with a size of 3/32" and oil...$98.77 -
Out of stock
V-Twin - 11-0023 - 61 inch Rear MC Cast Knucklehead Cylinder
Motorshop
$267.20V-Twin - 11-0023 - 61 inch Rear MC Cast Knucklehead CylinderDescriptionRear cylinder fits Knucklehead 1936-1947 61" models. Cylinders are for stock bore, stock stroke and compression, featuring 5...$267.20 -
Out of stock
V-Twin - 11-0022 - 61 inch Front MC Cast Knucklehead Cylinder
Motorshop
$267.20V-Twin - 11-0022 - 61 inch Front MC Cast Knucklehead CylinderDescriptionFront cylinder fits Knucklehead 1936-1947 61" models. Cylinders are for stock bore, stock stroke and compression, featuring 5...$267.20 -
Out of stock
V-Twin - 11-0021 - Finned Rocker Box Cover Set Raw
V-Twin Mfg
$446.52V-Twin - 11-0021 - Finned Rocker Box Cover Set RawDescriptionFinned rocker box cover set features a raw finish, which can readily accept black heat paint.*NOTE: Black heat paint can aid in heat and...$446.52 -
Out of stock
V-Twin - 11-0011 - M8 Shovelhead Rocker Box Cover Set
V-Twin Mfg
$414.61V-Twin - 11-0011 - M8 Shovelhead Rocker Box Cover SetDescriptionShovelhead rocker box cover set features a natural cast finish. For M8 models.Shipped in natural cast aluminum, which aids in heat...$414.61 -
Out of stock
V-Twin - 11-0008 - TC-88 Shovelhead Rocker Box Cover Set Natural Cast - Fits 1999-2018 Harley-Davidson FXST, 1999-2016 FLH, 1999-2017 FLST, FXD
V-Twin Mfg
$446.52TC-88 Shovelhead rocker box set features a natural cast finish.Retro "Shovel" look for the Twin cam motors. Shipped in natural cast aluminum, which aids in heat disepation and readily painted with...$446.52 -
Out of stock
V-Twin - 11-0003 - M8 Chrome Lower Rocker Box Cover
Motorshop
$163.25V-Twin - 11-0003 - M8 Chrome Lower Rocker Box CoverDescriptionChrome lower rocker box cover is for M8 models.*NOTE: Requires 2. Fits:FLT 2017-UPAdditional Information$163.25 -
Out of stock
V-Twin - 11-0001 - M8 Gloss Black Lower Rocker Box Cover
Motorshop
$163.25V-Twin - 11-0001 - M8 Gloss Black Lower Rocker Box CoverDescriptionGloss Black lower rocker box cover is for M8 models.*NOTE: Requires 2. Fits:FLT 2017-UPAdditional Information$163.25 -
Out of stock
V-Twin - 1021-P - Polished Engine Dress Up Bolt Kit
Colony Machine
$105.15V-Twin - 1021-P - Polished Engine Dress Up Bolt KitDescriptionAllen head show bike kit for engine dress up features a polished finish. Fits:VRSC 2002-UPAdditional Information$105.15 -
Out of stock
V-Twin - 10-8359 - Jims 3-Hole Crank Pin 1.250
Jims
$149.83V-Twin - 10-8359 - Jims 3-Hole Crank Pin 1.250 Description Jims crank pin is made of 8620 steel with .062 heat treated penetration. Crank pin is 3 oil hole type. Fits: XL 1957-1981 Early...$149.83 -
Out of stock
V-Twin - 10-2522 - Steel Connecting Rod Bearing Cage Set
Motorshop
$95.93V-Twin - 10-2522 - Steel Connecting Rod Bearing Cage Set Description Sifton steel connecting rod bearing cage set includes 4 cages, and standard size Torrington roller set. Fits: FXST...$95.93 -
Out of stock
V-Twin - 10-2008 - Panhead 74 inch Short Block
Motorshop
$4,928.69V-Twin - 10-2008 - Panhead 74 inch Short Block Description 74" short block is shipped fully assembled.Unit features S&S crankcases, Sifton oil and breather assembly, stock stroke flywheel, Timken...$4,928.69 -
Out of stock
V-Twin - 10-1990 - Panhead 80 inch Short Block
Motorshop
$5,066.27V-Twin - 10-1990 - Panhead 80 inch Short Block Description Shipped fully assembled.80" Panhead short block is shipped fully assembled. Unit features S&S crankcase, Sifton oil and breather assembly...$5,066.27 -
Out of stock
V-Twin - 10-1889 - 1940 Knucklehead 8-Finned Cam Cover Polished
V-Twin Mfg
$304.23V-Twin - 10-1889 - 1940 Knucklehead 8-Finned Cam Cover PolishedDescriptionForged aluminum 1940 Knucklehead 8-finned cam cover features a polished finish and includes the "welch" plug installed, as...$304.23 -
Out of stock
V-Twin - 10-1888 - Shovelhead Case Set
Motorshop
$1,616.41V-Twin - 10-1888 - Shovelhead Case SetDescriptionShovelhead motor case set for flat side models with cast aluminum inner primary cover. Set includes tapered bearing assembly for left side and case...$1,616.41 -
Out of stock
V-Twin - 10-1834 - Cam Cover Kit Cast - Fits 1999-2016 Harley-Davidson FLT, FLST, 1999-2017 FXST, FXD
V-Twin Mfg
$523.52Cam cover kit. Cam cover trim for Twin Cam models bolts directly to the existing cam cover.Kit includes a replica cast cam cover with bushings installed, cast cam cover adapter trim and cadmium cam...$523.52 -
Out of stock
V-Twin - 10-1832 - Knucklehead Cam Cover Trim Set Alloy - Fits 1999-2016 Harley-Davidson FLT, 1999-2017 FLST, FXST
V-Twin Mfg
MSRP: $414.61$400.31Knucklehead cam cover trim set attaches to the existing cam cover with a 1936 stule screw set.Kit includes an alloy 8-finned style cam cover, an inner mount ring and 12 screws. Fits:FLT 1999-2016FLST...MSRP: $414.61$400.31 -
Out of stock
V-Twin - 10-1820 - Panhead/Shovelhead Engine Case Set
Motorshop
$1,804.43V-Twin - 10-1820 - Panhead/Shovelhead Engine Case SetDescriptionPanhead engine case set includes tapered bearing assembly for left side and case race on right side. Features a front saddle for the 3...$1,804.43 -
Out of stock
V-Twin - 10-1819 - Sifton 45 inch WR Cam Set
Sifton
$664.51V-Twin - 10-1819 - Sifton 45 inch WR Cam SetDescriptionSifton 4 piece 45" WR cam set, for use with bushings, features the original design lobes by Tom Sifton in the late 1940's.For use with roller...$664.51 -
Out of stock
V-Twin - 10-1814 - Nylon Bushing Set
Motorshop
MSRP: $40.27$39.47V-Twin - 10-1814 - Nylon Bushing SetDescriptionBushing set features a white nylon finish.Set is for use with shifter bracket. Fits:FXD 2016-2017Additional InformationMSRP: $40.27$39.47 -
Out of stock
V-Twin - 10-1813 - TC-88 Pinion Race
V-Twin Mfg
$81.09V-Twin - 10-1813 - TC-88 Pinion RaceDescriptionTC-88 pinion race features a standard outer diameter and the inner dimaeter is undersize. Fits:Custom applicationAdditional Information$81.09 -
Out of stock
V-Twin - 10-1812 - ULH Cam Lobe Set
Sifton
$588.89V-Twin - 10-1812 - ULH Cam Lobe SetDescriptionULH cam lobe set for dirt track use.Sold as a set of four. Fits:U 1937-1948Additional Information$588.89 -
Out of stock
V-Twin - 10-1801 - .0008 45 Connecting Rod Roller Bearing Kit
Motorshop
$71.23V-Twin - 10-1801 - .0008 45 Connecting Rod Roller Bearing KitDescriptionNew Old Stock" of 45 connecting rod roller bearing kit is an original army surplus from the 1940's.Features an oversize of ...$71.23 -
Out of stock
V-Twin - 10-1789 - TC-88 Cam Cover Kit Polished - Fits 1999-2016 Harley-Davidson FLT, FLST, 1999-2017 FXST
V-Twin Mfg
$481.16TC-88 cam cover kit features a polished finish, featuring the original styling, as shown on our 1936 replica Softail!Mounts to adapter plate where existing cam cover is located. Kit includes 1936 EL...$481.16 -
Out of stock
V-Twin - 10-1763 - 45 Piston Wrist Pin - Fits 1929-1935 Harley-Davidson R, 1936-1973 G, 1936-1952 W
V-Twin Mfg
$53.41.006 45 piston wrist pin. Fits:R 1929-1935G 1936-1973W 1936-1952Additional Information OEM No.275-32E$53.41 -
Out of stock
V-Twin - 10-1762 - TC-88 Chain Tensioner Set - Fits 1999-2005 Harley-Davidson FL, FX
V-Twin Mfg
$98.95TC-88 chain tensioner set includes primary and secondary chain tensioners. Fits:FL 1999-2005FX 1999-2005Additional Information OEM No.39964-99A<$98.95 -
Out of stock
V-Twin - 10-1750 - 45 inch WL Short Block
Motorshop
$2,103.98V-Twin - 10-1750 - 45 inch WL Short BlockDescription45" WL short block includes a right and left engine case assembled with the flywheel installed.Flywheels are installed in case! ...$2,103.98 -
Out of stock
V-Twin - 10-1619 - Evolution Cam Cover Trim - Fits 1986-1999 Harley-Davidson FXR, FLT, FLST, 1985-1999 FXST, 1986-1999 FXD
V-Twin Mfg
$178.10Evolution cam cover trim feature an alloy construction. Bolts to stock cam cover on 1986-99 Big Twin models to give the early Shovelhead Flatside style, cover is natural cast for original style...$178.10 -
Out of stock
V-Twin - 10-1460 - Replica Pinion Right Case Race Standard - Fits 1940-1954 Harley-Davidson FL
V-Twin Mfg
$32.07Replica pinion right side case race standard is machined and ground to factory specifications. Fits:FL 1940-1954Additional Information UOM1 - EA$32.07 -
Out of stock
V-Twin - 10-1457 - 45 inch WL Case Set
Motorshop
$713.81V-Twin - 10-1457 - 45 inch WL Case SetDescription45" WL case set is for use with right and left side 45 engine case.Right side case included and cam bearings are installed. *NOTE: For final machining...$713.81 -
Out of stock
V-Twin - 10-1452 - 45 inch Right Case Race - Fits 1937-1952 Harley-Davidson WL, 1937-1973 G
V-Twin Mfg
$54.4745" right case race.*NOTE: Must be honed to fit after installation. Fits:WL 1937-1952G 1937-1973Additional Information UOM1 - EA$54.47 -
Out of stock
V-Twin - 10-1451 - Hydraulic Tappet Set
Motorshop
$288.24V-Twin - 10-1451 - Hydraulic Tappet SetDescriptionSifton hydraulic tappet body and four piece lifter set fitted with large pin roller assembly will fit stock tappet blocks. Fits:FLT 1979-1983FX...$288.24 -
Out of stock
V-Twin - 10-1449 - Knucklehead Cam Chest Kit - Fits 1936-1947 Harley-Davidson EL, 1941-1947 FL
V-Twin Mfg
$654.38V-Twin Knucklehead cam chest kit is for use when building our replica engines.Kit includes Andrews N grind cam Knucklehead and all components except cam cover. All year Knucklehead cam covers are...$654.38 -
Out of stock
V-Twin - 10-1437 - 8-Finned Cam Cover Kit Chrome - Fits 1984-1999 Harley-Davidson FLST, 1986-1999 FXST
V-Twin Mfg
$554.47Bolt-on 8-finned cam cover Kit for Evolution models to give it a Retro-style Panhead look!Kit includes a chrome 8-finned cam cover with bushings installed, cast aluminum cam cover adapter trim and...$554.47 -
Out of stock
V-Twin - 10-1436 - Cam Cover Trim Kit Die Cast - Fits 1984-1999 Harley-Davidson FLST, 1986-1999 FXST
V-Twin Mfg
MSRP: $554.47$453.66Cam cover trim kit features the bolt on retro look in an die cast finish.Kit includes a die cast 8-finned cam cover with bushings installed, cast aluminum cam cover adapter trim and cadmium cam cover...MSRP: $554.47$453.66
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.