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
-
Hastings HASTINGS Piston Rings - Twin Cam 2M4805010
HASTINGS
$101.95HASTINGS Piston Rings Twin Cam 2M4805010Features a cast or moly top ring, Reverse torsional taper face second ring and easy "spiral on" three-piece oil rings09120469- SKU:
- 09120469
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- BORE OVERSIZE - IMPERIAL:
- +0.010'
- BORE SIZE IMPERIAL:
- 3.750'
- RIDING STYLE:
- STREET
- BORE - OVERSIZE:
- +0,010'
- STYLE:
- OEM REPLACEMENT
- PRODUCT NAME:
- PISTON RING
- UNITS:
- SET
- RING MATERIAL:
- MOLY COATED
$101.95 -
Hastings HASTINGS Piston Rings - Twin Cam 2M4942
HASTINGS
$97.95HASTINGS Piston Rings Twin Cam 2M4942Features a cast or moly top ring, Reverse torsional taper face second ring and easy "spiral on" three-piece oil ringsDS750687- SKU:
- DS750687
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- UNITS:
- SET
- BORE SIZE IMPERIAL:
- 3.750'
- PRODUCT NAME:
- PISTON RING
- BORE - OVERSIZE:
- STANDARD
- BORE OVERSIZE - IMPERIAL:
- STANDARD
- RIDING STYLE:
- STREET
- STYLE:
- OEM REPLACEMENT
- RING MATERIAL:
- MOLY COATED
$97.95 -
Hastings HASTINGS Piston Rings - Twin Cam 2M4941
HASTINGS
$97.95HASTINGS Piston Rings Twin Cam 2M4941Features a cast or moly top ring, Reverse torsional taper face second ring and easy "spiral on" three-piece oil ringsDS750692- SKU:
- DS750692
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RING MATERIAL:
- MOLY COATED
- PRODUCT NAME:
- PISTON RING
- STYLE:
- OEM REPLACEMENT
- BORE - OVERSIZE:
- STANDARD
- BORE OVERSIZE - IMPERIAL:
- STANDARD
- BORE SIZE IMPERIAL:
- 3.875'
- RIDING STYLE:
- STREET
- UNITS:
- SET
$97.95 -
DRAG SPECIALTIES Spark Plug Cover - Black - Twin Cam 63422
DRAG SPECIALTIES
$76.17DRAG SPECIALTIES Spark Plug Cover Black Twin Cam 63422Comes with mounting hardware, Sold as a kit for two heads09401313- SKU:
- 09401313
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- PRODUCT NAME:
- COVER
- BASE COLOR:
- BLACK
- TYPE:
- SPARK PLUG
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- STYLE:
- FINNED
$76.17 -
DRAG SPECIALTIES Spark Plug Cover - Silver - Twin Cam 63421
DRAG SPECIALTIES
$74.11DRAG SPECIALTIES Spark Plug Cover Silver Twin Cam 63421Comes with mounting hardware, Sold as a kit for two heads09401314- SKU:
- 09401314
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- PRODUCT NAME:
- COVER
- COLOR/FINISH:
- SILVER
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- TYPE:
- SPARK PLUG
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- STYLE:
- FINNED
$74.11 -
DRAG SPECIALTIES Spark Plug Cover - Black - Sportster 63426
DRAG SPECIALTIES
$76.17DRAG SPECIALTIES Spark Plug Cover Black Sportster 63426Comes with mounting hardware, Sold as a kit for two heads09401315- SKU:
- 09401315
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- COLOR/FINISH:
- BLACK
- TYPE:
- SPARK PLUG
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- BASE COLOR:
- BLACK
- MATERIAL:
- ALUMINUM
- STYLE:
- FINNED
$76.17 -
DRAG SPECIALTIES Spark Plug Cover - Silver - Sportster 63425
DRAG SPECIALTIES
$64.84DRAG SPECIALTIES Spark Plug Cover Silver Sportster 63425Comes with mounting hardware, Sold as a kit for two heads09401316- SKU:
- 09401316
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- COLOR/FINISH:
- SILVER
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- TYPE:
- SPARK PLUG
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- STYLE:
- FINNED
$64.84 -
DRAG SPECIALTIES Spark Plug Cover - Chrome - Twin Cam 63428
DRAG SPECIALTIES
$95.74DRAG SPECIALTIES Spark Plug Cover Chrome Twin Cam 63428Comes with mounting hardware, Sold as a kit for two heads09401317- SKU:
- 09401317
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- BASE FINISH:
- CHROME
- RIDING STYLE:
- STREET
- TYPE:
- SPARK PLUG
- STYLE:
- SMOOTH
- MATERIAL:
- ALUMINUM
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$95.74 -
DRAG SPECIALTIES Spark Plug Cover - Chrome - Sportster 63427
DRAG SPECIALTIES
$76.17DRAG SPECIALTIES Spark Plug Cover Chrome Sportster 63427Comes with mounting hardware, Sold as a kit for two heads09401318- SKU:
- 09401318
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- BASE FINISH:
- CHROME
- TYPE:
- SPARK PLUG
- COLOR/FINISH:
- CHROME
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- STYLE:
- SMOOTH
- UNITS:
- EACH
$76.17 -
DRAG SPECIALTIES Points Cover - Chrome 78040
DRAG SPECIALTIES
$25.70DRAG SPECIALTIES Points Cover Chrome 78040Die-cast construction, Matches other Drag Specialties Split Skull products09401612- SKU:
- 09401612
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- STREET
- STYLE:
- BLACK SKULL
- TYPE:
- POINTS
- MATERIAL:
- DIE-CAST
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
$25.70 -
DRAG SPECIALTIES Points Cover - Chrome 78102
DRAG SPECIALTIES
$25.70DRAG SPECIALTIES Points Cover Chrome 78102Die-cast construction, Matches other Drag Specialties Split Skull products09401743- SKU:
- 09401743
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- STREET
- STYLE:
- BLACK SKULL
- MATERIAL:
- DIE-CAST
- PRODUCT NAME:
- COVER
- TYPE:
- POINTS
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- STYLE:
- SKULL
$25.70 -
DRAG SPECIALTIES Points Cover - Black 78102B
DRAG SPECIALTIES
$25.70DRAG SPECIALTIES Points Cover Black 78102BDie-cast construction, Matches other Drag Specialties Split Skull products09401744- SKU:
- 09401744
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- DIE-CAST
- PRODUCT NAME:
- COVER
- STYLE:
- CHROME SKULL
- TYPE:
- POINTS
- RIDING STYLE:
- STREET
- STYLE:
- SKULL
- UNITS:
- EACH
$25.70 -
DRAG SPECIALTIES Heavy Duty Motor Mount - FXR 74806
DRAG SPECIALTIES
$47.33DRAG SPECIALTIES Heavy Duty Motor Mount FXR 74806Chrome-plated heavy-duty mounts are 30% thicker than stock, Mounts include chrome choke/horn bracketsDS243606- SKU:
- DS243606
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- CHROME
- MOUNTING POSITION:
- TOP
- PRODUCT NAME:
- MOUNT
- TYPE:
- MOTOR
- UNITS:
- KIT
$47.33 -
DRAG SPECIALTIES Top Motor Mount 19092
DRAG SPECIALTIES
$41.15DRAG SPECIALTIES Top Motor Mount 19092High-quality, chrome one-piece design, Bolts not included with mountDS243615- SKU:
- DS243615
- Availability:
- Ships Same Business Day
- Weight:
- 0.63 LBS
- PRODUCT NAME:
- MOUNT
- UNITS:
- EACH
- MOUNTING POSITION:
- TOP
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- TYPE:
- ENGINE
$41.15 -
DRAG SPECIALTIES Top Motor Mount 74021
DRAG SPECIALTIES
$39.09DRAG SPECIALTIES Top Motor Mount 74021High-quality, chrome motor mountsDS243602- SKU:
- DS243602
- Availability:
- Ships Same Business Day
- Weight:
- 0.94 LBS
- PRODUCT NAME:
- MOUNT
- TYPE:
- ENGINE
- UNITS:
- EACH
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- TOP
$39.09 -
DRAG SPECIALTIES Heavy Duty Motor Mount - Softail 74807
DRAG SPECIALTIES
$68.96DRAG SPECIALTIES Heavy Duty Motor Mount Softail 74807Chrome-plated heavy-duty mounts are 30% thicker than stock, Mounts include chrome choke/horn bracketsDS243607- SKU:
- DS243607
- Availability:
- Ships Same Business Day
- Weight:
- 1.81 LBS
- PRODUCT NAME:
- MOUNT
- TYPE:
- MOTOR
- UNITS:
- KIT
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- MOUNTING POSITION:
- TOP
$68.96 -
DRAG SPECIALTIES Gasket Board - 6 Speed 0934-6982
DRAG SPECIALTIES
$129.73DRAG SPECIALTIES Gasket Board 6 Speed 0934-6982DRAG SPECIALTIES Gasket Board - 6 Speed09346982- SKU:
- 09346982
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET BOARD
- STYLE:
- 6 SPEED
$129.73 -
DRAG SPECIALTIES Gasket Board - 6 Speed 0934-6983
DRAG SPECIALTIES
$117.37DRAG SPECIALTIES Gasket Board 6 Speed 0934-6983DRAG SPECIALTIES Gasket Board - 6 Speed09346983- SKU:
- 09346983
- Availability:
- Ships Same Business Day
- Weight:
- 4.00 LBS
- PRODUCT NAME:
- GASKET BOARD
- RIDING STYLE:
- STREET
- STYLE:
- 6 SPEED
- UNITS:
- EACH
$117.37 -
DRAG SPECIALTIES Gasket Board - XL 0934-1878
DRAG SPECIALTIES
$160.63DRAG SPECIALTIES Gasket Board XL 0934-1878Complete four-color display features gaskets, seals and O-rings necessary to rebuild most XL Evolution motors, Mounts easily on any 1/8" or 1/4" peg board, Designed so that three 32" H x 48" W displays will fit...09341878- SKU:
- 09341878
- Availability:
- Ships Same Business Day
- Weight:
- 7.05 LBS
- PRODUCT NAME:
- DISPLAY BOARD
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- TYPE:
- GASKET
$160.63 -
DRAG SPECIALTIES Gasket Board - XL/EVO 0934-1667
DRAG SPECIALTIES
$112.22DRAG SPECIALTIES Gasket Board XL/EVO 0934-1667Complete four-color display features gaskets, seals and O-rings necessary to rebuild most XL Evolution motors, Mounts easily on any 1/8" or 1/4" peg board, Designed so that three 32" H x 48" W displays will...09341667- SKU:
- 09341667
- Availability:
- Ships Same Business Day
- Weight:
- 5.80 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- DISPLAY BOARD
- UNITS:
- EACH
- TYPE:
- GASKET
$112.22Qty in Cart: 0Quantity:Price:$112.22Subtotal:
