Harley Engine
Harley Bike Engine Parts at JJ Motorsports
Rebuild and boost your Harley's engine with premium parts from JJ Motorsports. Our inventory features complete gasket sets, piston kits, oil filters, pushrod tubes, and coolers designed for maximum strength, leak-free sealing, and high-performance in extreme conditions. Compatible with Big Twins, Softail, Touring, and more, these components support top-end overhauls, oil management, and durability for street rides or custom builds.
Shop trusted brands like Drag Specialties for magnetic filters and Wiseco for forged pistons. Explore related categories such as Harley air and fuel for carb tuning or Harley drivetrain for transmission upgrades.
Top Harley Engine Products
- DRAG SPECIALTIES Magnetic Ring Oil Filter - Chrome - 3-1/4" 140003HP-BX18 – Captures metal particles with pressure relief.
- WISECO Piston Kit .010 .883 XL K1656 – Forged aluminum with rings, pins, and circlips for rebuilds.
- DRAG SPECIALTIES Pushrod Tube Kit Big Twin 75711 – Includes tubes, clips, cups, and springs for complete engine.
- ULTRACOOL Below Regulator Mount Oil Cooler Stainless Steel RF-2CSS – Fits S&S 111/124/143 engines with machined adapter.
- PAUGHCO Ribbed Teardrop Air Cleaner 701-200 – Chrome-plated aluminum with mini filter.
Browse our in-stock inventory below with same-day shipping and expert support. Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
DRAG SPECIALTIES Peaked Design Oil Dipstick - Dyna 63187F
DRAG SPECIALTIES
$59.69Exact replacement for OEM dipstick, Includes the swiveling dipstick, Chrome-plated with clean "peaked" design caps07100150- SKU:
- 07100150
- Availability:
- Ships Same Business Day
- Weight:
- 0.41 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- OIL DIPSTICK
- BASE COLOR:
- SILVER
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- TYPE:
- SWIVEL
$59.69 -
DRAG SPECIALTIES Oil Filter - Black 140004B-BX29
DRAG SPECIALTIES
$10.25High-quality spin-on filters are a dependable replacement for most H-D modelsDS275206- SKU:
- DS275206
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- BASE COLOR:
- BLACK
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- STYLE:
- STANDARD
- PRODUCT NAME:
- OIL FILTER
- TYPE:
- SPIN-ON
- FEATURES:
- WITHOUT NUT
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
$10.25Qty in Cart: 0Quantity:Price:$10.25Subtotal: -
DRAG SPECIALTIES Top Motor Mount 28-0026-SC3
DRAG SPECIALTIES
$63.81Chrome-plated heavy-duty mount is 30% thicker than stockDS273619- SKU:
- DS273619
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- COLOR/FINISH:
- CHROME
- TYPE:
- MOTOR
- UNITS:
- KIT
- PRODUCT NAME:
- MOUNT
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- TOP
$63.81 -
DRAG SPECIALTIES Rocker Box - Twin Cam I33-0103A
DRAG SPECIALTIES
$317.19Quality construction with exact dimensions ensures a perfect, leakproof fit, Two required per motor09400737- SKU:
- 09400737
- Availability:
- Ships Same Business Day
- Weight:
- 4.01 LBS
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- TYPE:
- ROCKER BOX
- BASE FINISH:
- CHROME
- UNITS:
- KIT
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- COVER
$317.19 -
DRAG SPECIALTIES Points Cover - Chrome 30-0170A
DRAG SPECIALTIES
$28.79Beautiful radiused points cover matches our brake caliper inserts and fork tube cap covers, Comes complete with screws and gasket78050080- SKU:
- 78050080
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- PRODUCT NAME:
- COVER
- STYLE:
- RADIUS
- RIDING STYLE:
- STREET
- TYPE:
- POINTS
$28.79 -
DRAG SPECIALTIES Rocker Arm Seal Kit - Big Twin 04-0988-1-HC
DRAG SPECIALTIES
$6.13Contains shims, spacers and seals to rebuild all four rocker arm shafts found in 66-84 Shovelhead engines, Rocker arm won’t come out of adjustment or need re-shimming, Only needs to be replaced with each valve job09270005- SKU:
- 09270005
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- SEAL KIT
- RIDING STYLE:
- STREET
- TYPE:
- ROCKER ARM
- UNITS:
- 4 PACK
$6.13 -
DRAG SPECIALTIES Cylinder - Rear - 1200cc - 1966-1980 Shovelhead 750604-BX-LB2
DRAG SPECIALTIES
$220.37Cast-iron cylinders meet or exceed OEM tolerance specifications, Withstand greater pressure and heat than stockDS750604- SKU:
- DS750604
- Availability:
- Ships Same Business Day
- Weight:
- 12.13 LBS
- MATERIAL:
- IRON
- PRODUCT NAME:
- CYLINDER
- UNITS:
- EACH
- BORE SIZE IMPERIAL:
- 3.435'
- DISPLACEMENT:
- 1200 CC
- COLOR/FINISH:
- BLACK
- TYPE:
- REAR
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CAST
- RIDING STYLE:
- STREET
$220.37 -
DRAG SPECIALTIES Cylinder - Front - 1200cc - 1966-1980 Shovelhead 750605-BX-LB2
DRAG SPECIALTIES
$198.74Cast-iron cylinders meet or exceed OEM tolerance specifications, Withstand greater pressure and heat than stockDS750605- SKU:
- DS750605
- Availability:
- Ships Same Business Day
- Weight:
- 11.63 LBS
- UNITS:
- EACH
- BORE SIZE IMPERIAL:
- 3.435'
- DISPLACEMENT:
- 1200 CC
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CAST
- RIDING STYLE:
- STREET
- TYPE:
- FRONT
- COLOR/FINISH:
- BLACK
- MATERIAL:
- IRON
- PRODUCT NAME:
- CYLINDER
$198.74Qty in Cart: 0Quantity:Price:$198.74Subtotal: -
DRAG SPECIALTIES Cylinder - Rear - 74" - 1948-1965 Panhead 750606-BX-LB2
DRAG SPECIALTIES
$198.74Cast-iron cylinders meet or exceed OEM tolerance specifications, Withstand greater pressure and heat than stockDS750606- SKU:
- DS750606
- Availability:
- Ships Same Business Day
- Weight:
- 11.63 LBS
- DISPLACEMENT:
- 74'
- MATERIAL:
- IRON
- PRODUCT NAME:
- CYLINDER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- TYPE:
- REAR
- BORE SIZE IMPERIAL:
- 3.435'
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CAST
- RIDING STYLE:
- STREET
$198.74 -
DRAG SPECIALTIES Cylinder - Front - 74" - 1948-1965 Panhead 750607-BX-LB2
DRAG SPECIALTIES
$198.74Cast-iron cylinders meet or exceed OEM tolerance specifications, Withstand greater pressure and heat than stockDS750607- SKU:
- DS750607
- Availability:
- Ships Same Business Day
- Weight:
- 11.81 LBS
- DISPLACEMENT:
- 74'
- MATERIAL:
- IRON
- PRODUCT NAME:
- CYLINDER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- TYPE:
- FRONT
- BORE SIZE IMPERIAL:
- 3.435'
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CAST
- RIDING STYLE:
- STREET
$198.74 -
DRAG SPECIALTIES Cylinder - Natural - 1986-2003 1200XL 16447-88-LB2
DRAG SPECIALTIES
$257.45Replacement cylinders feature ductile cast-iron sleeves in aluminum castings, Sleeve has external ribs that “lock” the sleeve to the aluminum casting so it cannot move, Excellent for stock replacement, Cylinders are finished slightly undersized so they...DS750506- SKU:
- DS750506
- Availability:
- Ships Same Business Day
- Weight:
- 6.94 LBS
- TYPE:
- REAR
- MATERIAL:
- IRON
- PRODUCT NAME:
- CYLINDER
- UNITS:
- EACH
- BORE SIZE IMPERIAL:
- 3.498'
- DISPLACEMENT:
- 1200 CC
- COLOR/FINISH:
- ALUMINUM
- MATERIAL:
- ALUMINUM
- MATERIAL:
- CAST
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 3-13/16'
- TYPE:
- FRONT
$257.45 -
DRAG SPECIALTIES Cylinder - 1200cc- 1988-2003 - XL - Black 09310018BLK-LB2
DRAG SPECIALTIES
$295.56Replacement cylinders feature ductile cast-iron sleeves in aluminum castings, Sleeve has external ribs that “lock” the sleeve to the aluminum casting so it cannot move, Excellent for stock replacement, Cylinders are finished slightly undersized so they...09310018- SKU:
- 09310018
- Availability:
- Ships Same Business Day
- Weight:
- 7.29 LBS
- DISPLACEMENT:
- 1200 CC
- MATERIAL:
- CAST
- PRODUCT NAME:
- CYLINDER
- RIDING STYLE:
- STREET
- BORE SIZE IMPERIAL:
- 3.500'
- COLOR/FINISH:
- HIGHLIGHTED FINS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- ALUMINUM
- MATERIAL:
- IRON
- UNITS:
- EACH
$295.56 -
DRAG SPECIALTIES Crankcase Vent Replacement Filter 35-0312A-BC142
DRAG SPECIALTIES
$20.55Replacement filters sold separatelyDS289516- SKU:
- DS289516
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- BASE COLOR:
- SILVER
- UNITS:
- EACH
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- ALUMINUM
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
- PRODUCT NAME:
- VENT FILTER
- TYPE:
- CHROME TOP
$20.55 -
DRAG SPECIALTIES Crankcase Vent Replacement Filter 35-0313-BC104
DRAG SPECIALTIES
$20.55Replacement filters sold separatelyDS289517- SKU:
- DS289517
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- COLOR/FINISH:
- ALUMINUM
- BASE COLOR:
- BLACK
- BASE COLOR:
- SILVER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- VENT FILTER
- TYPE:
- RUBBER TOP
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
$20.55 -
DRAG SPECIALTIES Crankcase Vent Replacement Filter 35-0319-BC142
DRAG SPECIALTIES
$21.58Replacement filters sold separatelyDS289519- SKU:
- DS289519
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- ALUMINUM
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- VENT FILTER
- TYPE:
- BOLT
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- TYPE:
- BUTTON-HEAD
$21.58 -
DRAG SPECIALTIES Skull Points Cover - Twin Cam 30-0181-BC-222
DRAG SPECIALTIES
$42.18Die-cast construction, Skull protrudes outward about .750"19020181- SKU:
- 19020181
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- COLOR/FINISH:
- CHROME
- MATERIAL:
- DIE-CAST
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- POINTS
- STYLE:
- 3-D SKULL
$42.18 -
DRAG SPECIALTIES Engine Motor Mount Plate - XL 28-0013-SC4
DRAG SPECIALTIES
$87.50Steel mount plates with a polished chrome finishDS243516- SKU:
- DS243516
- Availability:
- Ships Same Business Day
- Weight:
- 1.13 LBS
- BASE FINISH:
- CHROME
- MATERIAL:
- STEEL
- UNITS:
- PAIR
- MOUNTING POSITION:
- FRONT
- PRODUCT NAME:
- MOUNT PLATE
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- TYPE:
- ENGINE
$87.50 -
DRAG SPECIALTIES Motor Mount 28-0014
DRAG SPECIALTIES
$47.33Made of heavy-duty chromed steel to OEM specificationsDS243601- SKU:
- DS243601
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- MATERIAL:
- STEEL
- MOUNTING POSITION:
- FRONT
- TYPE:
- ENGINE
- PRODUCT NAME:
- MOUNT PLATE
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$47.33 -
DRAG SPECIALTIES Top Stabilizer Link - FLT/FXR 17-0619
DRAG SPECIALTIES
$84.41Includes mounting hardware09330075- SKU:
- 09330075
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- PRODUCT NAME:
- MOUNT STABILIZER
- RIDING STYLE:
- STREET
- TYPE:
- ENGINE
- BASE FINISH:
- CHROME
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
$84.41 -
DRAG SPECIALTIES Top Stabilizer Link - FXD E17-0649
DRAG SPECIALTIES
$91.62Includes mounting hardware09330076- SKU:
- 09330076
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- PRODUCT NAME:
- MOUNT STABILIZER
- RIDING STYLE:
- STREET
- TYPE:
- ENGINE
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- BASE FINISH:
- CHROME
$91.62
