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
-
FEULING OIL PUMP CORP. Quick Install Pushrods/Tube Kit - Twin Cam 4097
FEULING OIL PUMP CORP.
$289.95Tube material starts out as 7/16 rod OD, it then gets turned down to 3/8 OD leaving heavy duty 7/16 - 20 threads for the base and jam nut, The jam nut slides up the pushrod, the base then loosens up...09280106- SKU:
- 09280106
- Availability:
- Ships Same Business Day
- Weight:
- 2.35 LBS
- UNITS:
- SET OF 4
- WALL THICKNESS:
- 0,134'
- RIDING STYLE:
- STREET
- STYLE:
- ADJUSTABLE
- PRODUCT NAME:
- PUSHROD KIT
- WALL THICKNESS IMPERIAL:
- 0.134'
$289.95 -
FEULING OIL PUMP CORP. Complete Cam Chest Kit - 405 Series - HP+‚® - Twin Cooled - M8 7255
FEULING OIL PUMP CORP.
$1,795.95If your M8 is running hot oil and struggling with adequate pressure, the Feuling Oil Pump Corp. Complete Cam Chest Kit is the systematic solution that addresses the root cause. This all-in-one...09251212- SKU:
- 09251212
- Availability:
- Ships Same Business Day
- Weight:
- 11.70 LBS
- GRIND:
- 405 SERIES
- RIDING STYLE:
- STREET
- EXHAUST LIFT IMPERIAL:
- 0.521'
- TYPE:
- CHAIN
- FEATURES:
- TWIN COOLED
- INTAKE LIFT IMPERIAL:
- 0.518'
- PRODUCT NAME:
- CAMCHEST KIT
- UNITS:
- KIT
- MODEL:
- HP+®
$1,795.95Qty in Cart: 0Quantity:Price:$1,795.95Subtotal: -
FEULING OIL PUMP CORP. Cam Chest Kit - 521 Race Series - M8 7262
FEULING OIL PUMP CORP.
$1,979.95The Feuling 521 Race Series Cam Chest Kit transforms your M8 engine's oiling system into a precision-engineered assembly that delivers measurable thermal and pressure improvements. If you're running...09251214- SKU:
- 09251214
- Availability:
- Ships Same Business Day
- Weight:
- 11.65 LBS
- GRIND:
- 521 SERIES
- INTAKE DURATION IMPERIAL:
- 231°
- UNITS:
- KIT
- EXHAUST DURATION IMPERIAL:
- 243°
- EXHAUST LIFT IMPERIAL:
- 0.521'
- MODEL:
- RACE SERIES®
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CAMCHEST KIT
- FEATURES:
- OIL COOLED
- INTAKE LIFT IMPERIAL:
- 0.518'
- TYPE:
- CHAIN
$1,979.95Qty in Cart: 0Quantity:Price:$1,979.95Subtotal: -
On Sale
GOODRIDGE Universal Oil Line - 11" VTOL-011
GOODRIDGE
MSRP: $39.95Now: $35.96Was: $39.95Feature stainless steel braided hose with PTFE inner liner and beautifully chromed mild steel hardware, PTFE liner is an inert material, compatible with all oils and hydraulic fluids and has a heat...07110138- SKU:
- 07110138
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- STYLE:
- BRAIDED
- BASE COLOR:
- SILVER
- LENGTH METRIC:
- 28 CM
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- LENGTH IMPERIAL:
- 11'
- PRODUCT NAME:
- LINE
- COLOR/FINISH:
- CHROME
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
MSRP: $39.95Now: $35.96Was: $39.95Qty in Cart: 0Quantity:Price:MSRP: $39.95Now: $35.96Was: $39.95Subtotal: -
On Sale
GOODRIDGE Universal Oil Line - 15" VTOL-015
GOODRIDGE
MSRP: $41.95Now: $37.76Was: $41.95Oil line failure under heat and pressure can compromise your entire lubrication system, leading to catastrophic engine damage. The GOODRIDGE Universal Oil Line delivers reliable protection with a...07110141- SKU:
- 07110141
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- LINE
- MATERIAL:
- STAINLESS STEEL
- BASE COLOR:
- SILVER
- LENGTH METRIC:
- 38 CM
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- LENGTH IMPERIAL:
- 15'
- STYLE:
- BRAIDED
- UNITS:
- EACH
MSRP: $41.95Now: $37.76Was: $41.95Qty in Cart: 0Quantity:Price:MSRP: $41.95Now: $37.76Was: $41.95Subtotal: -
On Sale
GOODRIDGE Universal Oil Line - 26" VTOL-026
GOODRIDGE
MSRP: $47.95Now: $43.16Was: $47.95Feature stainless steel braided hose with PTFE inner liner and beautifully chromed mild steel hardware, PTFE liner is an inert material, compatible with all oils and hydraulic fluids and has a heat...07110148- SKU:
- 07110148
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- LENGTH METRIC:
- 66 CM
- PRODUCT NAME:
- LINE
- BASE COLOR:
- SILVER
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- COLOR/FINISH:
- CHROME
- MATERIAL:
- STAINLESS STEEL
- STYLE:
- BRAIDED
- UNITS:
- EACH
- LENGTH IMPERIAL:
- 26'
MSRP: $47.95Now: $43.16Was: $47.95Qty in Cart: 0Quantity:Price:MSRP: $47.95Now: $43.16Was: $47.95Subtotal: -
On Sale
GOODRIDGE Straight Oil Line Fitting - 1/8" NPT P816-06-02SCH
GOODRIDGE
MSRP: $7.95Now: $7.16Was: $7.95A reliable oil line fitting is essential for maintaining consistent pressure and preventing leaks in forced induction and high-performance engine builds. The GOODRIDGE Straight Oil Line Fitting...07110149- SKU:
- 07110149
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CHROME
- FITTING CONNECTOR TYPE:
- 1/8' NPT
- TYPE:
- OIL LINE
- UNITS:
- EACH
- FITTING ANGLE:
- STRAIGHT
- PRODUCT NAME:
- FITTING
- RIDING STYLE:
- STREET
- MATERIAL:
- STAINLESS STEEL
MSRP: $7.95Now: $7.16Was: $7.95 -
On Sale
GOODRIDGE Straight Oil Line Fitting - 1/4" NPT P816-06SCH
GOODRIDGE
MSRP: $7.95Now: $7.16Was: $7.95Reliable oil line routing is critical for maintaining consistent pressure and preventing leaks in high-performance engine builds. This GOODRIDGE fitting ensures a secure connection between your...07110150- SKU:
- 07110150
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- FITTING ANGLE:
- STRAIGHT
- PRODUCT NAME:
- FITTING
- RIDING STYLE:
- STREET
- TYPE:
- OIL LINE
- BASE FINISH:
- CHROME
- FITTING CONNECTOR TYPE:
- 1/4' NPT
- COLOR/FINISH:
- CHROME
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
MSRP: $7.95Now: $7.16Was: $7.95 -
On Sale
GOODRIDGE 45 Degree Oil Line Fitting - 1/4" NPT 823-06SCH
GOODRIDGE
MSRP: $14.95Now: $13.46Was: $14.95A properly routed oil line is critical to engine reliability, and this GOODRIDGE 45-degree fitting ensures leak-free connections in tight engine bays where space is premium. The 1/4" NPT female...07110152- SKU:
- 07110152
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- MATERIAL:
- STAINLESS STEEL
- RIDING STYLE:
- STREET
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CHROME
- FITTING ANGLE:
- 45°
- FITTING CONNECTOR TYPE:
- 1/4' NPT
- PRODUCT NAME:
- FITTING
- TYPE:
- OIL LINE
- UNITS:
- EACH
MSRP: $14.95Now: $13.46Was: $14.95 -
On Sale
GOODRIDGE 90 Degree Oil Line Fitting - 1/8" NPT P822-06-02SCH
GOODRIDGE
MSRP: $14.95Now: $13.46Was: $14.95Female fittings match stainless steel braided hoses to form complete oil line assemblies, Made in the U.S.A.07110153- SKU:
- 07110153
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CHROME
- FITTING ANGLE:
- 90°
- FITTING CONNECTOR TYPE:
- 1/8' NPT
- TYPE:
- OIL LINE
- UNITS:
- EACH
- PRODUCT NAME:
- FITTING
- RIDING STYLE:
- STREET
- MATERIAL:
- STAINLESS STEEL
MSRP: $14.95Now: $13.46Was: $14.95 -
On Sale
GOODRIDGE 90 Degree Oil Line Fitting - 1/4" NPT 822-06SCH
GOODRIDGE
MSRP: $14.95Now: $13.46Was: $14.95Female fittings match stainless steel braided hoses to form complete oil line assemblies, Made in the U.S.A.07110154- SKU:
- 07110154
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- FITTING
- RIDING STYLE:
- STREET
- TYPE:
- OIL LINE
- UNITS:
- EACH
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CHROME
- FITTING ANGLE:
- 90°
- FITTING CONNECTOR TYPE:
- 1/4' NPT
MSRP: $14.95Now: $13.46Was: $14.95Qty in Cart: 0Quantity:Price:MSRP: $14.95Now: $13.46Was: $14.95Subtotal: -
JAGG OIL COOLERS Oil Filter Adapter Service Kit SK4550
JAGG OIL COOLERS
$10.95Service kit includes two replacement O-rings for 4550 oil filter adapter and instructions07130217- SKU:
- 07130217
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- STREET
- TYPE:
- OIL FILTER
- UNITS:
- SET
- PRODUCT NAME:
- O-RING SET
$10.95Qty in Cart: 0Quantity:Price:$10.95Subtotal: -
JAGG OIL COOLERS Oil Filter Adapter - EVO 4500
JAGG OIL COOLERS
$129.95If you're running a modern Sportster and want reliable engine cooling without compromising oil flow, the JAGG EVO 4500 Oil Filter Adapter is essential infrastructure for your oil cooler system. This...07130253- SKU:
- 07130253
- Availability:
- Ships Same Business Day
- Weight:
- 0.91 LBS
- BASE COLOR:
- SILVER
- BASE FINISH:
- ANODIZED
- COLOR/FINISH:
- GUNMETAL
- FEATURES:
- WITHOUT GAUGE
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- ADAPTER
- RIDING STYLE:
- STREET
- TYPE:
- OIL FILTER
- COLOR/FINISH:
- BLACK
- STYLE:
- EVO
- UNITS:
- EACH
$129.95Qty in Cart: 0Quantity:Price:$129.95Subtotal: -
JAGG OIL COOLERS Viscosity Regulated Flow Actuator Kit AK4700-VRF
JAGG OIL COOLERS
$15.95Cold starts waste time and stress your engine. The JAGG OIL COOLERS Viscosity Regulated Flow Actuator Kit upgrades your existing Jagg 4700 adapter to intelligent VRF technology, automatically...07130254- SKU:
- 07130254
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- COLOR/FINISH:
- BLACK
- UNITS:
- KIT
- FEATURES:
- WITHOUT GAUGE
- RIDING STYLE:
- STREET
- STYLE:
- VISCOSITY REGULATED FLOW (VRF)
- TYPE:
- OIL FILTER
- BASE COLOR:
- BLACK
- PRODUCT NAME:
- ACTUATOR KIT
$15.95Qty in Cart: 0Quantity:Price:$15.95Subtotal: -
JAGG OIL COOLERS Oil Filter Adapter 4550
JAGG OIL COOLERS
$149.95Managing oil temperature is critical for engine longevity and consistent performance, especially in high-demand racing and modified applications. The JAGG 4550 Oil Filter Adapter simplifies oil...07130145- SKU:
- 07130145
- Availability:
- Ships Same Business Day
- Weight:
- 0.86 LBS
- PRODUCT NAME:
- ADAPTER
- RIDING STYLE:
- STREET
- TYPE:
- OIL FILTER
- UNITS:
- EACH
$149.95Qty in Cart: 0Quantity:Price:$149.95Subtotal: -
JAGG OIL COOLERS Automatic By-Pass Valve 4050
JAGG OIL COOLERS
$99.95Oil coolers are essential for high-performance applications, but they can restrict flow during cold starts and cool-weather operation, extending engine warm-up times and reducing efficiency. The JAGG...07130069- SKU:
- 07130069
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- TYPE:
- AUTOMATIC
- PRODUCT NAME:
- BYPASS VALVE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$99.95Qty in Cart: 0Quantity:Price:$99.95Subtotal: -
JAMES GASKET Generator Gear End Oil Seal 30145-46-A
JAMES GASKET
$16.10A faulty generator gear end oil seal will compromise your engine's lubrication system and lead to costly oil leaks and internal damage. The JAMES GASKET 30145-46-A is engineered to provide a...DS194490- SKU:
- DS194490
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- STREET
- APPLICATION:
- GEAR END
- PRODUCT NAME:
- SEAL
- UNITS:
- 5 PACK
$16.10Qty in Cart: 0Quantity:Price:$16.10Subtotal: -
On Sale
COMETIC Head Gasket - Standard - .040" C9984
COMETIC
MSRP: $61.90Now: $55.71Was: $61.90A failing head gasket can compromise your engine's compression, cooling system integrity, and overall performance—and a quality replacement is non-negotiable for reliability. The COMETIC C9984 uses...09340794- SKU:
- 09340794
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- MATERIAL:
- LAYERED STEEL
- TYPE:
- CYLINDER HEAD
- THICKNESS IMPERIAL:
- 0,040'
- BORE SIZE:
- 3,500'
- BORE SIZE IMPERIAL:
- 3.500'
- PRODUCT NAME:
- GASKET
- THICKNESS METRIC:
- 1.02 MM
- UNITS:
- PAIR
- RIDING STYLE:
- STREET
- THICKNESS:
- 1,02 MM (0,040')
MSRP: $61.90Now: $55.71Was: $61.90 -
On Sale
COMETIC Complete Gasket Kit - FL/FLH C9966
COMETIC
MSRP: $190.00Now: $171.00Was: $190.00A complete gasket failure can end your race day before it starts. The COMETIC C9966 kit eliminates guesswork by pairing multi-layer steel head gaskets with application-specific materials throughout...09340816- SKU:
- 09340816
- Availability:
- Ships Same Business Day
- Weight:
- 0.76 LBS
- MATERIAL:
- AFM (ALUMINUM FOAM MATERIAL)
- RIDING STYLE:
- STREET
- BORE SIZE:
- 3,437'
- MATERIAL:
- STEEL
- MATERIAL:
- VITON
- TYPE:
- COMPLETE
- UNITS:
- KIT
- BORE SIZE IMPERIAL:
- 3.437'
- PRODUCT NAME:
- GASKET KIT
MSRP: $190.00Now: $171.00Was: $190.00 -
On Sale
COMETIC Trans Gasket - 5 Speed C9466
COMETIC
MSRP: $86.05Now: $77.45Was: $86.05Transmission gasket failures lead to fluid leaks, loss of shift quality, and costly internal damage—often when you can least afford downtime. The COMETIC Trans Gasket C9466 eliminates guesswork with...09340821- SKU:
- 09340821
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- PRODUCT NAME:
- GASKET KIT
- STYLE:
- 5-SPEED
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- TYPE:
- TRANSMISSION
MSRP: $86.05Now: $77.45Was: $86.05Qty in Cart: 0Quantity:Price:MSRP: $86.05Now: $77.45Was: $86.05Subtotal:
