Engine
2243 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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S&S Cycle - Compression Release Hole Plug
S&S Cycle
$24.95S&S Cycle - Compression Release Hole Plug Features: Not for use on OEM heads Made in the U.S.A. Fitment$24.95 -
S&S Cycle - Valve Spring Kit fits '48-'84 Big Twin Models
S&S Cycle
$248.95S&S Cycle - Valve Spring Kit fits '48-'84 Big Twin Models Features: To be used with cams with up to .550" lift Includes springs and aluminum top retainers$248.95 -
S&S Cycle - Tappet Alignment Tool fits 'L76-'17 Big Twin Models (Except M-Eight)
S&S Cycle
$41.95S&S Cycle - Tappet Alignment Tool fits 'L76-'17 Big Twin Models (Except M-Eight) Features: Big Twin Evolution tappet blocks do not have counter-bored bolt holes; therefore, when a tappet block is...$41.95 -
S&S Cycle - Rocker Cover Wrench Set
S&S Cycle
$154.95S&S Cycle - Rocker Cover Wrench Set Features: Four wrenches of different lengths for those hard-to-get-to rocker box screws For use on all Big Twin and XL Evolution-style motors$154.95 -
V-Twin - 15-1542 - Tappet Base Gasket Kit - Fits 1991-1998 Harley-Davidson FXD, 1984-1998 FXST, 1971-1984 FX, 1986-1998 FLST, 1948-1984 FL, 1982-1994 FXR, 1979-1998 FLT
MSRP: $17.14$16.96Tappet base gasket kit includes 3 front and 3 rear gaskets. Fitment: FXST 1984-1998 FXR 1982-1994 FLT 1979-1998 FX 1971-1984 FXD 1991-1998 FL 1948-1984 FLST 1986-1998MSRP: $17.14$16.96 -
Sifton - Sifton Oil Pump Check Valve Ball Re-Seater Tool fits '84-'98 FXST, '82-'94 FXR, '57-'76 Sportster Models
Sifton
$142.07Sifton - Sifton Oil Pump Check Valve Ball Re-Seater Tool fits '84-'98 FXST, '82-'94 FXR, '57-'76 Sportster Models Sifton oil pump check valve ball re-seater tool will recut the seat to allow the...$142.07 -
Kraus - Black Anodized Pro-Line Slider Derby Cover fits M8 Softail Models W/ Narrow Primary Cover
Kraus Motor Co.
$295.00kraus - Black Anodized Pro-Line Slider Derby Cover fits M8 Softail Model The Kraus Pro-Line Slider Derby Cover is a direct replacement for your stock derby cover. This isn't your normal dress up...$295.00 -
Feuling - Hydraulic Camchain Tensioner Kit fits '17 & Up M8 Model
Feuling
$119.95Feuling - Hydraulic Camchain Tensioner Kit fits '17 & Up M8 Model Features: Install or replace hydraulic camchain tensioners on stock M8 models Kit includes out chain, outer crank 17 tooth crank...$119.95 -
Feuling - 487 Series Chain Drive Reaper® Camshaft fits M8 Model
Feuling
$319.95Feuling - 487 Series Chain Drive Reaper® Camshaft fits M8 Model Features: Good for 4.25" stroke with 114"-117" engine looking for an agressive bolt in Produces a wide powerband$319.95 -
Colony - 8610-1 5/8"-18 Crankcase/Oil Tank Hex Timing Plug fits '86-'95 Sportster Models (OEM #2326-26)
Colony Machine
$9.95Colony - 8610-1 5/8"-18 Crankcase/Oil Tank Hex Timing Plug fits '86-'95 Sportster Models (OEM #2326-26) Features: Timing plugs in a variety of styles and fitments Include kit for stripped timing...$9.95 -
Colony - 8142-34 Motor Case Acorn Hardware Kit fits '84-'99 Big Twin Models (Except Twin Cam)
Colony Machine
$70.95Colony - 8142-34 Motor Case Acorn Hardware Kit fits '84-'99 Big Twin Models (Except Twin Cam) Features: Individual acorn bolt and nut sets for specific applications Includes washers <$70.95 -
Colony - 9884-20 Zinc Motor Case Bolt Kit fits '96-'00 Evolution Big Twin Models (OEM #3398, 3504A)
Colony Machine
$43.95Colony - 9884-20 Zinc Motor Case Bolt Kit fits '96-'98 Evolution Big Twin Models (OEM #3398, 3504A) Features: Includes all necessary hardware for bolting together the motor case$43.95 -
Colony - 9877-2 Cadmium Oil Screen Plug fits '70-'80 Big Twin Models (OEM #657)
Colony Machine
$6.95Colony - 9877-2 Cadmium Oil Screen Plug fits '70-'80 Big Twin Models (OEM #657) Features: Oil Screen plug for Big Twin models Made in the USA$6.95 -
Colony - 9645-2 Cadmium OEM-Style Oil Pump Plug fits '84-'99 Evolution Big Twin Models (OEM #26263-80)
Colony Machine
$6.95Colony - 9645-2 Cadmium OEM-Style Oil Pump Plug fits '84-'99 Evolution Big Twin Models (OEM #26263-80) Features: Made in the U.S.A. Fitment$6.95 -
Colony - 9213-4 Inner Pushrod Cover fits '84-'98 FXST, '79-'98 FLT, '79-'84 FX/FL Models (OEM #17935-79)
Colony Machine
MSRP: $46.25$38.95Colony - 9213-4 Inner Pushrod Cover fits '84-'98 FXST, '79-'98 FLT, '79-'84 FX/FL Models (OEM #17935-79) Inner pushrod cover. Fitment: FXST 1984-1998 FX 1979-1984 FLT 1979-1998 FXD...MSRP: $46.25$38.95 -
Colony - 9306-7 Cam Cover Cadmium Screw Kit fits '70-'84 FL, '91-'92 FXD, '82-'92 FXR Models
Colony Machine
MSRP: $16.98$16.81Colony - 9306-7 Cam Cover Cadmium Screw Kit fits '70-'84 FL, '91-'92 FXD, '82-'92 FXR Models Cam cover screw kit with a cadmium finish. Fitment: FL 1970-1984 FXD 1991-1992 FXR 1982-1992 FX...MSRP: $16.98$16.81 -
Colony - 9407-1 Oversize Timing Plug Tap fits '84-'98 FXST, '82-'94 FXR, '57-Up Sportster Models
Colony Machine
$47.43Colony - 9407-1 Oversize Timing Plug Tap fits '84-'98 FXST, '82-'94 FXR, '57-Up Sportster Models Oversize tap for oversized timing plug measures 11/16"-16 thread. Fitment: FXST 1984-1998 UL...$47.43 -
Colony - 9424-8 Cylinder Stud fits '86-'98 FXST/FLT/FLST, '91-'98 FXD, '86-'94 FXR Models
Colony Machine
$99.53Colony - 9424-8 Cylinder Stud fits '86-'98 FXST/FLT/FLST, '91-'98 FXD, '86-'94 FXR Models Colony Cylinder Stud - Part Number 9424-8 for Evolution. Filment: FXST 1986-1998 FLT 1986-1998 FXD 1991-1998...$99.53 -
Colony - 9635-4 Cadmium Oil Pump Check and Relief Valve Plug fits '91-'98 FXD, '84-'98 FXST, '82-'94 FXR Models
Colony Machine
$24.06Colony - 9635-4 Cadmium Oil Pump Check and Relief Valve Plug fits '91-'98 FXD, '84-'98 FXST, '82-'94 FXR Models Oil pump check and relief valve plug with a cadmium finish Fitment: FLT...$24.06 -
Colony - 9645-2 Cadmium Tappet Screen Oil Plug fits '84-'98 FXST, '82-'94 FXR, '91-'98 FXD Models
Colony Machine
MSRP: $15.82$6.95Colony - 9645-2 Cadmium Tappet Screen Oil Plug fits '84-'98 FXST, '82-'94 FXR, '91-'98 FXD Models Tappet oil screen plug with a cadmium finish Fitment: FLT 1981-1998 FXST 1984-1998 FXR...MSRP: $15.82$6.95 -
Colony - 9787-12 Zinc Oil Pump Mount Kit fits '79-'91 FLT, '82-'91 FXR, '86-'91 FLST Models
Colony Machine
MSRP: $16.98$16.81Colony - 9787-12 Zinc Oil Pump Mount Kit fits '79-'91 FLT, '82-'91 FXR, '86-'91 FLST Models Oil pump mount kit with a zinc finish. Fitment: FLT 1979-1991 FXR 1982-1991 FXD 1991-1991 FL...MSRP: $16.98$16.81 -
Colony - 9821-4 Chrome Oil Filter Adapter Mount Kit fits '92-'99 FXST/FLST Models
Colony Machine
MSRP: $7.86$7.78Colony - 9821-4 Chrome Oil Filter Adapter Mount Kit fits '92-'99 FXST/FLST Models Chrome oil filter adapter mount kit Fitment: FXST 1992-1999 FLST 1992-1999MSRP: $7.86$7.78 -
Colony - 9854-28 Chrome Upper and Lower Engine Bolts fits '84-'99 FXST, '86-'99 FLST Models
Colony Machine
MSRP: $57.58$51.95Colony - 9854-28 Chrome Upper and Lower Engine Bolts fits '84-'99 FXST, '86-'99 FLST Models Upper and lower engine mount bolts with a chrome finish Fitment: FXST 1984-1999 FLST 1986-1999MSRP: $57.58$51.95 -
Colony - 9855-28 Zinc Upper and Lower Engine Mount Bolts fits '84-'99 FXST, '86-'99 FLST Models
Colony Machine
$59.27Colony - 9855-28 Zinc Upper and Lower Engine Mount Bolts fits '84-'99 FXST, '86-'99 FLST Models Upper and lower engine mount bolts with a zinc finish. Fitment: FXST 1984-1999 FLST 1986-1999$59.27 -
Colony - 9883-20 Chrome Engine Case Flanged Bolt Kit fits '96-'99 FLT/FXD/FXST/FLST Models
Colony Machine
$54.31Colony - 9883-20 Chrome Engine Case Flanged Bolt Kit fits '96-'99 FLT/FXD/FXST/FLST Models Chrome flanged engine case bolt kit Fitment: FLT 1996-1999 FXD 1996-1999 FXST 1996-1999 FLST...$54.31 -
Colony - 9927-28-P Upper and Lower Engine Mount Allen Bolts fits '84-'99 FXST, '86-'99 FLST Models
Colony Machine
$67.61Colony - 9927-28-P Upper and Lower Engine Mount Allen Bolts fits '84-'99 FXST, '86-'99 FLST Models Polished upper and lower Allen type engine mount bolts Fitment: FXST 1984-1999 FLST 1986-1999$67.61 -
Colony - 9942-16 Tappet Block Bolt Set Allen fits '99-'17 FLT/FXD, '99-Up FLST/FXST Models
Colony Machine
MSRP: $22.60$21.13Colony - 9942-16 Tappet Block Bolt Set Allen fits '99-'17 FLT/FXD, '99-Up FLST/FXST Models Allen type tappet block bolt set without taper. For TC-88 engines Fitment: FLT 1999-2016 FXST...MSRP: $22.60$21.13 -
Colony - 9960-1 Chrome Oversize Allen Timing Plug fits '84-'99 FXST, '91-'99 FXD, '57-'85 Sportster Models
Colony Machine
MSRP: $15.64$15.48Colony - 9960-1 Chrome Oversize Allen Timing Plug fits '84-'99 FXST, '91-'99 FXD, '57-'85 Sportster Models Chrome allen timing plug is 11/16" - 16 oversize Fitment: FXST 1984-1999 FXD...MSRP: $15.64$15.48 -
Colony - 9967-4 Chrome Screw Set for Motor Mount to Cylinder Head fits '93-Up FLST/FXST, '86-Up Sportster Models
Colony Machine
MSRP: $19.26$19.06Colony - 9967-4 Chrome Screw Set for Motor Mount to Cylinder Head fits '93-Up FLST/FXST, '86-Up Sportster Models Chrome engine mount to cylinder head screw set features flat head allen screws and...MSRP: $19.26$19.06 -
Colony - 9970-20 Chrome M8 Upper Pushrod Cover Kit fits '99-'16 FLT, '99-'17 FXD, '99-Up FXST/FLST Models
Colony Machine
$42.64Colony - 9970-20 Chrome M8 Upper Pushrod Cover Kit fits '99-'16 FLT, '99-'17 FXD, '99-Up FXST/FLST Models Chrome upper pushrod cover kit includes 4: 1-3/4" long retaining clips, cups, springs,...$42.64 -
Colony - 2083-8 Cylinder Base Stud Set fits '99-'17 FXD, '99-Up FLT/FLST/FXST Models (OEM #16834-99)
Colony Machine
$97.25Colony - 2083-8 Cylinder Base Stud Set fits '99-'17 FXD, '99-Up FLT/FLST/FXST Models (OEM #16834-99) Cylinder base stud set features OEM style heat treated alloy steel studs to replace original...$97.25 -
V-Twin - Oil Pump Plug fits '84-'98 FXST, '82-'94 FXR, '57-'76 Sportster Models
V-Twin Mfg
$10.89V-Twin - Oil Pump Plug fits '84-'98 FXST, '82-'94 FXR, '57-'76 Sportster Models Oil pump plug. Fitment: FXST 1984-1998 UL 1937-1948 FXR 1982-1994 FLT 1979-1998 FX 1971-1984 EL 1936-1940 FL 1941-1984...$10.89 -
Colony - Motor Case Stud Kit fits '79-'95 Big Twin Models - Cadmium
Colony Machine
$57.95Colony - Motor Case Kit fits '79-'95 Big Twin Models - Cadmium Features: Contain all necessary hardware to bolt together stock motor cases Made in the U.S.A.$57.95 -
Colony - Head Bolt Set fits '86-'91 Sportster Models (OEM #16478-85A, 16480-85A)
Colony Machine
$99.95Colony - Head Bolt Set fits '86-'91 Sportster Models (OEM #16478-85A, 16480-85A) Features: 12-point replacement headbolts Made in the U.S.A.$99.95 -
Burly Brand - Black Brawler Kit fits M8 Softail Models
Burly Brand
$252.95 - $351.95Burly Brand - Black Brawler Kit fits M8 Softail Models Features: Designed to grind down during impacts to prevent bike from catching and flipping Functions as a highway bar for a secure grip and...$252.95 - $351.95 -
Colony - Allen Oil Pump Plug Kit fits Big Twin Models (OEM #26263-80)
Colony Machine
$10.95Colony - Allen Oil Pump Plug Kit fits Big Twin Models (OEM #26263-80) Features: Plug and plug kits designed for a variety of Harley-Davidson® oil systems Complete with washers (or O-rings if...$10.95 -
Colony - Motor Mount Hardware Kit for '84-'99 FXST/FLST
Colony Machine
$51.95Colony - Motor Mount Hardware Kit for '84-'99 FXST/FLST Features: Made in the U.S.A. Replacement Part for OEM: 3512$51.95 -
Colony - 9883-20 Chrome Motor Case Bolt Kit fits '96-'00 Evolution Big Twin Models (OEM #3398, 3504A)
Colony Machine
$48.95Colony - 9883-20 Chrome Motor Case Bolt Kit fits '96-'98 Evolution Big Twin Models (OEM #3398, 3504A) Features: Includes all necessary hardware for bolting together the motor case Made in t$48.95 -
Colony - Oil Tappet Screen and O-Ring fits '00-'17 Softail Models (OEM #11301, 24983-00)
Colony Machine
$5.95Colony - Oil Tappet Screen and O-Ring fits '00-'17 Softail Models (OEM #11301, 24983-00) Features: High-quality replacement Made in the USA$5.95 -
Colony - 11/16"-16 Crankcase/Oil Tank Hex Timing Plug fits '86-'95 Sportster Models (OEM #2326-38)
Colony Machine
$8.95Colony - 11/16"-16 Crankcase/Oil Tank Hex Timing Plug fits '86-'95 Sportster Models (OEM #2326-38) Features: Timing plugs in a variety of styles and fitments Include kit for stripped timing plug...$8.95
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.