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
-
ARLEN NESS Cam Cover - Titanium 03-976
ARLEN NESS
$299.95ARLEN NESS Cam Cover Titanium 03-976Machined from 6061 T-6 forged aluminum, Replaces OEM die-cast cam cover, Includes necessary gaskets and hardware09401902- SKU:
- 09401902
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- ANODIZED
- TYPE:
- CAM
- MODEL:
- 10 GAUGE
- COLOR/FINISH:
- TITANIUM
- MATERIAL:
- 6061 T-6 ALUMINUM
- RIDING STYLE:
- STREET
$299.95Qty in Cart: 0Quantity:Price:$299.95Subtotal: -
ARLEN NESS Cam Cover - Black 03-985
ARLEN NESS
$329.95ARLEN NESS Cam Cover Black 03-985Machined from 6061 T-6 forged aluminum, Replaces OEM die-cast cam cover, Includes necessary gaskets and hardware09401903- SKU:
- 09401903
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- COLOR/FINISH:
- BLACK ANODIZED
- PRODUCT NAME:
- COVER
- MODEL:
- 10 GAUGE
- TYPE:
- CAM
- UNITS:
- EACH
- MATERIAL:
- 6061 T-6 ALUMINUM
- RIDING STYLE:
- STREET
$329.95 -
On Sale
ARLEN NESS Cam Cover - Titanium 03-986
ARLEN NESS
MSRP: $329.95Now: $300.25Was: $329.95ARLEN NESS Cam Cover Titanium 03-986Machined from 6061 T-6 forged aluminum, Replaces OEM die-cast cam cover, Includes necessary gaskets and hardware09401904- SKU:
- 09401904
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- TYPE:
- CAM
- UNITS:
- EACH
- COLOR/FINISH:
- ANODIZED
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- TITANIUM
- MATERIAL:
- 6061 T-6 ALUMINUM
- MODEL:
- 10 GAUGE
MSRP: $329.95Now: $300.25Was: $329.95 -
On Sale
ARLEN NESS Lifter Block - Black 12-574
ARLEN NESS
MSRP: $209.95Now: $191.05Was: $209.95ARLEN NESS Lifter Block Black 12-574Machined from 6061 T-6 billet aluminum09401905- SKU:
- 09401905
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- PRODUCT NAME:
- COVER
- COLOR/FINISH:
- BLACK ANODIZED
- MODEL:
- 10 GAUGE
- RIDING STYLE:
- STREET
- TYPE:
- LIFTER BLOCK
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 6061-T6 BILLET ALUMINUM
- UNITS:
- PAIR
MSRP: $209.95Now: $191.05Was: $209.95 -
On Sale
ARLEN NESS Lifter Block - Titanium 12-575
ARLEN NESS
MSRP: $209.95Now: $191.05Was: $209.95ARLEN NESS Lifter Block Titanium 12-575Machined from 6061 T-6 billet aluminum09401906- SKU:
- 09401906
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- MATERIAL:
- 6061-T6 BILLET ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- PAIR
- COLOR/FINISH:
- ANODIZED
- COLOR/FINISH:
- TITANIUM
- MODEL:
- 10 GAUGE
- TYPE:
- LIFTER BLOCK
MSRP: $209.95Now: $191.05Was: $209.95 -
On Sale
ARLEN NESS Lifter Block - Black 12-584
ARLEN NESS
MSRP: $249.95Now: $227.45Was: $249.95ARLEN NESS Lifter Block Black 12-584Machined from 6061 T-6 billet aluminum09401907- SKU:
- 09401907
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- COLOR/FINISH:
- BLACK ANODIZED
- MATERIAL:
- 6061-T6 BILLET ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- TYPE:
- LIFTER BLOCK
- COLOR/FINISH:
- BLACK
- MODEL:
- 10 GAUGE
- UNITS:
- PAIR
MSRP: $249.95Now: $227.45Was: $249.95Qty in Cart: 0Quantity:Price:MSRP: $249.95Now: $227.45Was: $249.95Subtotal: -
On Sale
ARLEN NESS Lifter Block - Titanium 12-585
ARLEN NESS
MSRP: $249.95Now: $227.45Was: $249.95ARLEN NESS Lifter Block Titanium 12-585Machined from 6061 T-6 billet aluminum09401908- SKU:
- 09401908
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- MATERIAL:
- 6061-T6 BILLET ALUMINUM
- RIDING STYLE:
- STREET
- MODEL:
- 10 GAUGE
- COLOR/FINISH:
- TITANIUM
- UNITS:
- PAIR
- COLOR/FINISH:
- ANODIZED
- PRODUCT NAME:
- COVER
- TYPE:
- LIFTER BLOCK
MSRP: $249.95Now: $227.45Was: $249.95 -
On Sale
ARLEN NESS Rocker Cover - Black 18-256
ARLEN NESS
MSRP: $549.95Now: $500.45Was: $549.95ARLEN NESS Rocker Cover Black 18-256Carved from 6061 T-6 forged billet aluminum, Drastically changes the look of your engine, Replaces OEM top rocker box covers, Includes necessary gaskets and hardware09401909- SKU:
- 09401909
- Availability:
- Ships Same Business Day
- Weight:
- 3.70 LBS
- RIDING STYLE:
- STREET
- TYPE:
- ROCKER BOX
- COLOR/FINISH:
- BLACK
- UNITS:
- PAIR
- MODEL:
- 10 GAUGE
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- COVER
MSRP: $549.95Now: $500.45Was: $549.95 -
ARLEN NESS Rocker Cover - Titanium 18-257
ARLEN NESS
$564.16ARLEN NESS Rocker Cover Titanium 18-257Carved from 6061 T-6 forged billet aluminum, Drastically changes the look of your engine, Replaces OEM top rocker box covers, Includes necessary gaskets and hardware09401910- SKU:
- 09401910
- Availability:
- Ships Same Business Day
- Weight:
- 3.65 LBS
- RIDING STYLE:
- STREET
- TYPE:
- ROCKER BOX
- COLOR/FINISH:
- TITANIUM
- PRODUCT NAME:
- COVER
- UNITS:
- PAIR
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- MODEL:
- 10 GAUGE
$564.16 -
On Sale
ARLEN NESS Rocker Cover - Black 18-266
ARLEN NESS
MSRP: $699.95Now: $636.95Was: $699.95ARLEN NESS Rocker Cover Black 18-266Carved from 6061 T-6 forged billet aluminum, Drastically changes the look of your engine, Replaces OEM top rocker box covers, Includes necessary gaskets and hardware09401911- SKU:
- 09401911
- Availability:
- Ships Same Business Day
- Weight:
- 5.70 LBS
- RIDING STYLE:
- STREET
- TYPE:
- ROCKER BOX
- MODEL:
- 10 GAUGE
- COLOR/FINISH:
- BLACK
- UNITS:
- PAIR
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- COVER
MSRP: $699.95Now: $636.95Was: $699.95 -
On Sale
ARLEN NESS Rocker Cover - Titanium 18-267
ARLEN NESS
MSRP: $699.95Now: $636.95Was: $699.95ARLEN NESS Rocker Cover Titanium 18-267Carved from 6061 T-6 forged billet aluminum, Drastically changes the look of your engine, Replaces OEM top rocker box covers, Includes necessary gaskets and hardware09401912- SKU:
- 09401912
- Availability:
- Ships Same Business Day
- Weight:
- 5.70 LBS
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- TYPE:
- ROCKER BOX
- COLOR/FINISH:
- TITANIUM
- MODEL:
- 10 GAUGE
- UNITS:
- PAIR
MSRP: $699.95Now: $636.95Was: $699.95Qty in Cart: 0Quantity:Price:MSRP: $699.95Now: $636.95Was: $699.95Subtotal: -
On Sale
ARLEN NESS Point Cover - Black 700-008
ARLEN NESS
MSRP: $59.95Now: $54.55Was: $59.95ARLEN NESS Point Cover Black 700-008Includes chrome hardware.09401913- SKU:
- 09401913
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- MACHINED
- TYPE:
- POINTS
- MATERIAL:
- 6061 T-6 ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- ANODIZED
- COLOR/FINISH:
- BLACK
- STYLE:
- 10 GAUGE
MSRP: $59.95Now: $54.55Was: $59.95 -
ARLEN NESS Point Cover - Blue 700-011
ARLEN NESS
$69.95ARLEN NESS Point Cover Blue 700-011Includes chrome hardware.09401914- SKU:
- 09401914
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- COLOR/FINISH:
- BLUE
- MATERIAL:
- 6061 T-6 ALUMINUM
- RIDING STYLE:
- STREET
- STYLE:
- 10 GAUGE
- COLOR/FINISH:
- ANODIZED
- TYPE:
- POINTS
- COLOR/FINISH:
- MACHINED
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$69.95 -
On Sale
ARLEN NESS Point Cover - Gold 700-012
ARLEN NESS
MSRP: $69.95Now: $63.65Was: $69.95ARLEN NESS Point Cover Gold 700-012Includes chrome hardware.09401915- SKU:
- 09401915
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- COLOR/FINISH:
- GOLD
- MATERIAL:
- 6061 T-6 ALUMINUM
- STYLE:
- 10 GAUGE
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ANODIZED
- TYPE:
- POINTS
- COLOR/FINISH:
- MACHINED
- UNITS:
- EACH
MSRP: $69.95Now: $63.65Was: $69.95 -
ARLEN NESS Point Cover - Orange 700-013
ARLEN NESS
$69.95ARLEN NESS Point Cover Orange 700-013Includes chrome hardware.09401916- SKU:
- 09401916
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MATERIAL:
- 6061 T-6 ALUMINUM
- RIDING STYLE:
- STREET
- TYPE:
- POINTS
- UNITS:
- EACH
- COLOR/FINISH:
- MACHINED
- STYLE:
- 10 GAUGE
- COLOR/FINISH:
- ANODIZED
- COLOR/FINISH:
- ORANGE
- PRODUCT NAME:
- COVER
$69.95Qty in Cart: 0Quantity:Price:$69.95Subtotal: -
ARLEN NESS Cam Cover - 10 Gauge - Chrome 03-982
ARLEN NESS
$329.95ARLEN NESS Cam Cover 10 Gauge Chrome 03-982Machined from 6061 T-6 forged aluminum, Replaces OEM die-cast cam cover, Includes necessary gaskets and hardware09401658- SKU:
- 09401658
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- MATERIAL:
- 6061 T-6 ALUMINUM
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- COVER
- MODEL:
- 10 GAUGE
- COLOR/FINISH:
- CHROME
- TYPE:
- CAM
- UNITS:
- EACH
$329.95 -
ARLEN NESS Lifter Block Cover - Black 12-583
ARLEN NESS
$249.95ARLEN NESS Lifter Block Cover Black 12-583Machined from 6061 T-6 billet aluminum09401661- SKU:
- 09401661
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MATERIAL:
- 6061-T6 BILLET ALUMINUM
- UNITS:
- PAIR
- COLOR/FINISH:
- BLACK ANODIZED
- MODEL:
- 10 GAUGE
- RIDING STYLE:
- STREET
- TYPE:
- LIFTER BLOCK
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- COVER
$249.95 -
DRAG SPECIALTIES Right Roller Bearing Retainer - Big Twin 148107-BC105
DRAG SPECIALTIES
$24.67DRAG SPECIALTIES Right Roller Bearing Retainer Big Twin 148107-BC105High-quality, replacement right crankcase roller bearing retainerDS194015- SKU:
- DS194015
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- TYPE:
- ROLLER
- PRODUCT NAME:
- BEARING
- APPLICATION:
- CRANKCASE
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$24.67Qty in Cart: 0Quantity:Price:$24.67Subtotal: -
DRAG SPECIALTIES Inner Rocker Box Gasket 302133-HC4
DRAG SPECIALTIES
$20.55DRAG SPECIALTIES Inner Rocker Box Gasket 302133-HC4Replacement inner gasket designed for Drag Specialties Rocker Box KitsDS376510- SKU:
- DS376510
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- TYPE:
- ROCKER BOX
- UNITS:
- 10 PACK
- PRODUCT NAME:
- GASKET
$20.55 -
On Sale
EDDIE TROTTA DESIGNS Points Cover - Cross Cut - Black - M8 TC-565B
EDDIE TROTTA DESIGNS
MSRP: $138.00Now: $97.00Was: $138.00EDDIE TROTTA DESIGNS Points Cover Cross Cut Black M8 TC-565BCNC-machined, cross-cut design from 6061 billet aluminum, Made in the U.S.A.09401726- SKU:
- 09401726
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- COLOR/FINISH:
- BLACK
- STYLE:
- CONTRAST CUT™
- UNITS:
- EACH
- BASE COLOR:
- BLACK
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- TYPE:
- POINT
MSRP: $138.00Now: $97.00Was: $138.00
