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
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On Sale
S&S CYCLE Connecting Rod - Evolution 34-7013
S&S CYCLE
MSRP: $595.95Now: $536.36Was: $595.95If you're pushing your Evolution engine toward serious displacement numbers, stock connecting rods become a limiting factor fast. The S&S Cycle Evolution rod set handles extended strokes and higher...DS194027- SKU:
- DS194027
- Availability:
- Ships Same Business Day
- Weight:
- 5.05 LBS
- RIDING STYLE:
- STREET
- STYLE:
- HEAVY DUTY
- UNITS:
- SET
- MATERIAL:
- STEEL
- PRODUCT NAME:
- CONNECTING ROD ASSEMBLY
MSRP: $595.95Now: $536.36Was: $595.95 -
On Sale
S&S CYCLE Pinion Gear 33-4146
S&S CYCLE
MSRP: $112.95Now: $101.66Was: $112.95A quality pinion gear is critical to reliable power transmission in your drivetrain—any deviation in concentricity or tooth geometry directly impacts efficiency and component lifespan. The S&S CYCLE...DS194483- SKU:
- DS194483
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- SIZE IMPERIAL:
- 1.4715' - 1.4721'
- PRODUCT NAME:
- GEAR
- TYPE:
- PINION
MSRP: $112.95Now: $101.66Was: $112.95 -
On Sale
S&S CYCLE Connecting Rod - Big Twin 34-7004
S&S CYCLE
MSRP: $595.95Now: $536.36Was: $595.95If you're building a Big Twin engine with serious displacement goals, stock connecting rods become your limiting factor—they simply won't survive the loads of a stroker setup or high-RPM racing...DS194652- SKU:
- DS194652
- Availability:
- Ships Same Business Day
- Weight:
- 4.75 LBS
- MATERIAL:
- STEEL
- UNITS:
- SET
- PRODUCT NAME:
- CONNECTING ROD ASSEMBLY
- STYLE:
- HEAVY DUTY
- RIDING STYLE:
- STREET
MSRP: $595.95Now: $536.36Was: $595.95 -
On Sale
S&S CYCLE Connecting Rod 34-7011
S&S CYCLE
MSRP: $595.95Now: $536.36Was: $595.95If you're building a high-displacement or stroker engine, stock connecting rods become your limiting factor—they flex under load, fail prematurely, and rob you of reliability at the power levels...DS194653- SKU:
- DS194653
- Availability:
- Ships Same Business Day
- Weight:
- 4.75 LBS
- MATERIAL:
- STEEL
- PRODUCT NAME:
- CONNECTING ROD ASSEMBLY
- RIDING STYLE:
- STREET
- UNITS:
- SET
- STYLE:
- HEAVY DUTY
MSRP: $595.95Now: $536.36Was: $595.95Qty in Cart: 0Quantity:Price:MSRP: $595.95Now: $536.36Was: $595.95Subtotal: -
On Sale
S&S CYCLE Connecting Rod Assembly - XL 34-7800
S&S CYCLE
MSRP: $995.95Now: $896.36Was: $995.95If you're building a big-displacement stroker motor or running sustained high RPM loads, stock connecting rods become a weak link. The S&S CYCLE XL 34-7800 rod set eliminates this vulnerability with...DS194655- SKU:
- DS194655
- Availability:
- Ships Same Business Day
- Weight:
- 4.50 LBS
- MATERIAL:
- STEEL
- STYLE:
- HEAVY DUTY
- UNITS:
- SET
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- CONNECTING ROD ASSEMBLY
MSRP: $995.95Now: $896.36Was: $995.95Qty in Cart: 0Quantity:Price:MSRP: $995.95Now: $896.36Was: $995.95Subtotal: -
On Sale
S&S CYCLE Breather Gear - +.030" 33-4260
S&S CYCLE
MSRP: $229.95Now: $206.96Was: $229.95Precision engine timing is non-negotiable in high-performance applications, and the S&S Cycle Breather Gear delivers the exact valve train synchronization your build demands. This +.030" oversized...DS194471- SKU:
- DS194471
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- FEATURES:
- OVERSIZED (+.03')
- PRODUCT NAME:
- GEAR
- UNITS:
- KIT
- TYPE:
- BREATHER
- RIDING STYLE:
- STREET
MSRP: $229.95Now: $206.96Was: $229.95 -
On Sale
S&S CYCLE Pinion Gear 33-4124
S&S CYCLE
MSRP: $142.95Now: $128.66Was: $142.95The S&S Cycle Pinion Gear 33-4124 is purpose-built for Shovelhead motors where reliable primary drive engagement is non-negotiable. Whether you're running stock or modified power, this...DS194473- SKU:
- DS194473
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- STREET
- BASE COLOR:
- BLUE
- SIZE IMPERIAL:
- 1.4470' - 1.4475'
- PRODUCT NAME:
- GEAR
- TYPE:
- PINION
- UNITS:
- EACH
MSRP: $142.95Now: $128.66Was: $142.95 -
On Sale
S&S CYCLE Pinion Gear 33-4125
S&S CYCLE
MSRP: $142.95Now: $128.66Was: $142.95If you're running a Shovelhead motor, the pinion gear is critical to reliable power delivery and driveline integrity. A worn or damaged pinion gear will compromise acceleration, increase drivetrain...DS194474- SKU:
- DS194474
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- COLOR/FINISH:
- GREEN
- SIZE IMPERIAL:
- 1.4465' - 1.4470'
- UNITS:
- EACH
- BASE COLOR:
- GREEN
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GEAR
- TYPE:
- PINION
MSRP: $142.95Now: $128.66Was: $142.95Qty in Cart: 0Quantity:Price:MSRP: $142.95Now: $128.66Was: $142.95Subtotal: -
On Sale
S&S CYCLE Breather Gear - +.030" 33-4263
S&S CYCLE
MSRP: $199.95Now: $179.96Was: $199.95Precision engine timing is the foundation of reliable power delivery, and S&S Cycle's breather gear ensures your crankcase ventilation system operates at peak efficiency. This +.030" oversized gear...DS194469- SKU:
- DS194469
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- GEAR KIT
- RIDING STYLE:
- STREET
- FEATURES:
- OVERSIZED (+.03')
- MATERIAL:
- STEEL
- UNITS:
- KIT
- TYPE:
- BREATHER
MSRP: $199.95Now: $179.96Was: $199.95 -
On Sale
S&S CYCLE Super Stock¢â€žÂ¢ Engine Case - Evolution 31-0005
S&S CYCLE
MSRP: $1,895.95Now: $1,706.36Was: $1,895.95The foundation of any high-performance Evolution engine starts with a quality case, and the S&S Cycle Super Stock case delivers the precision engineering required for reliability under sustained load...DS194301- SKU:
- DS194301
- Availability:
- Ships Same Business Day
- Weight:
- 31.75 LBS
- PRODUCT NAME:
- ENGINE CASE
- BORE SIZE IMPERIAL:
- 3.500'
- UNITS:
- KIT
- MATERIAL:
- A356 T-6 ALUMINUM ALLOY
- COLOR/FINISH:
- RAW
- MODEL:
- SUPER STOCK®
- RIDING STYLE:
- STREET
MSRP: $1,895.95Now: $1,706.36Was: $1,895.95 -
On Sale
S&S CYCLE Super Stock¢â€žÂ¢ Engine Case - Evolution 31-0000
S&S CYCLE
MSRP: $1,895.95Now: $1,706.36Was: $1,895.95A quality engine case is the foundation of any reliable high-performance build. The S&S Cycle Super Stock case combines precision engineering with comprehensive hardware inclusion, eliminating the...DS194303- SKU:
- DS194303
- Availability:
- Ships Same Business Day
- Weight:
- 31.88 LBS
- MATERIAL:
- A356 T-6 ALUMINUM ALLOY
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- RAW
- MODEL:
- SUPER STOCK®
- PRODUCT NAME:
- ENGINE CASE
- BORE SIZE IMPERIAL:
- 3.500'
- UNITS:
- KIT
MSRP: $1,895.95Now: $1,706.36Was: $1,895.95 -
On Sale
S&S CYCLE Super Stock¢â€žÂ¢ Engine Case - Evolution 31-0001
S&S CYCLE
MSRP: $1,995.95Now: $1,796.36Was: $1,995.95The S&S Cycle Super Stock Engine Case is built for builders and racers who demand precision-engineered components that deliver consistent performance without compromise. This A356 T-6 aluminum...DS194304- SKU:
- DS194304
- Availability:
- Ships Same Business Day
- Weight:
- 31.38 LBS
- BORE SIZE IMPERIAL:
- 3.625'
- COLOR/FINISH:
- RAW
- MODEL:
- SUPER STOCK®
- PRODUCT NAME:
- ENGINE CASE
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- MATERIAL:
- A356 T-6 ALUMINUM ALLOY
MSRP: $1,995.95Now: $1,796.36Was: $1,995.95 -
On Sale
S&S CYCLE Super Stock¢â€žÂ¢ Engine Case 31-0003
S&S CYCLE
MSRP: $1,895.95Now: $1,706.36Was: $1,895.95A quality engine case is the foundation of any reliable high-performance build, and the S&S Cycle Super Stock case delivers the precision machining and durability you need for sustained power output...DS194305- SKU:
- DS194305
- Availability:
- Ships Same Business Day
- Weight:
- 31.19 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- RAW
- MODEL:
- SUPER STOCK®
- MATERIAL:
- A356 T-6 ALUMINUM ALLOY
- BORE SIZE IMPERIAL:
- 3.500'
- PRODUCT NAME:
- ENGINE CASE
- UNITS:
- KIT
MSRP: $1,895.95Now: $1,706.36Was: $1,895.95 -
On Sale
S&S CYCLE Super Stock¢â€žÂ¢ Engine Case 31-0004
S&S CYCLE
MSRP: $1,995.95Now: $1,796.36Was: $1,995.95The S&S Cycle Super Stock Engine Case is engineered for builders who demand precision and reliability in high-performance applications. This A356 T-6 aluminum casting delivers the durability required...DS194306- SKU:
- DS194306
- Availability:
- Ships Same Business Day
- Weight:
- 30.81 LBS
- BORE SIZE IMPERIAL:
- 3.625'
- UNITS:
- KIT
- MATERIAL:
- A356 T-6 ALUMINUM ALLOY
- COLOR/FINISH:
- RAW
- MODEL:
- SUPER STOCK®
- PRODUCT NAME:
- ENGINE CASE
- RIDING STYLE:
- STREET
MSRP: $1,995.95Now: $1,796.36Was: $1,995.95 -
On Sale
S&S CYCLE 520 Cam - Evolution 33-5073
S&S CYCLE
MSRP: $255.95Now: $230.36Was: $255.95The S&S Cycle 520 Cam delivers strong low to mid-range power where you need it most—whether you're launching hard on the street or holding consistent power through the mid-range on the track. Backed...DS199224- SKU:
- DS199224
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- APPLICATION:
- EXHAUST
- EXHAUST LIFT IMPERIAL:
- 0.520'
- PRODUCT NAME:
- CAM
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- EXHAUST LIFT AT TDC IMPERIAL:
- 0.094'
- GRIND:
- 520 SERIES
- INTAKE LIFT AT TDC IMPERIAL:
- 0.086'
- INTAKE LIFT IMPERIAL:
- 0.520'
- RIDING STYLE:
- STREET
- TYPE:
- GEAR
MSRP: $255.95Now: $230.36Was: $255.95 -
On Sale
S&S CYCLE 561 Cam - Evolution 33-5076
S&S CYCLE
MSRP: $255.95Now: $230.36Was: $255.95If you're running an Evolution Big Twin and want strong mid-range power without sacrificing streetability, the S&S 561 Cam delivers the performance you need. Built and tested by S&S Cycle engineers...DS199225- SKU:
- DS199225
- Availability:
- Ships Same Business Day
- Weight:
- 2.31 LBS
- APPLICATION:
- EXHAUST
- PRODUCT NAME:
- CAM
- UNITS:
- EACH
- EXHAUST LIFT AT TDC IMPERIAL:
- 0.210'
- INTAKE LIFT IMPERIAL:
- 0.560'
- RIDING STYLE:
- STREET
- APPLICATION:
- INTAKE
- GRIND:
- 561 SERIES
- INTAKE LIFT AT TDC IMPERIAL:
- 0.252'
- TYPE:
- GEAR
- EXHAUST LIFT IMPERIAL:
- 0.560'
MSRP: $255.95Now: $230.36Was: $255.95 -
On Sale
S&S CYCLE 600 Cam - Evolution 33-5058
S&S CYCLE
MSRP: $255.95Now: $230.36Was: $255.95The S&S Cycle 600 Cam delivers the mid-range power and reliability that separates serious builds from the rest. With hundreds of hours of dyno, street, and track testing behind every cam, you're...DS199228- SKU:
- DS199228
- Availability:
- Ships Same Business Day
- Weight:
- 1.88 LBS
- INTAKE LIFT AT TDC IMPERIAL:
- 0.192'
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- INTAKE LIFT IMPERIAL:
- 0.600'
- TYPE:
- GEAR
- APPLICATION:
- EXHAUST
- EXHAUST LIFT AT TDC IMPERIAL:
- 0.184'
- EXHAUST LIFT IMPERIAL:
- 0.600'
- GRIND:
- 600 SERIES
- PRODUCT NAME:
- CAM
- RIDING STYLE:
- STREET
MSRP: $255.95Now: $230.36Was: $255.95 -
On Sale
S&S CYCLE 514 Series Cam - Big Twin 33-5050
S&S CYCLE
MSRP: $254.95Now: $229.46Was: $254.95If you're looking to unlock serious mid-range torque and responsiveness in your Big Twin, the S&S Cycle 514 Series Cam delivers where it matters most. This is a cam that's been validated through...DS199186- SKU:
- DS199186
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- APPLICATION:
- INTAKE
- INTAKE LIFT IMPERIAL:
- 0.514'
- EXHAUST LIFT IMPERIAL:
- 0.514'
- INTAKE LIFT AT TDC IMPERIAL:
- 0.177'
- APPLICATION:
- EXHAUST
- EXHAUST LIFT AT TDC IMPERIAL:
- 0.177'
- GRIND:
- 514 SERIES
- PRODUCT NAME:
- CAM
- RIDING STYLE:
- STREET
- UNITS:
- EACH
MSRP: $254.95Now: $229.46Was: $254.95Qty in Cart: 0Quantity:Price:MSRP: $254.95Now: $229.46Was: $254.95Subtotal: -
On Sale
S&S CYCLE Time Saver Pushrods 930-0052
S&S CYCLE
MSRP: $214.95Now: $193.46Was: $214.95Installing performance cams and adjusters without removing your rocker boxes saves hours of labor time and reduces the risk of disturbing critical valve train geometry. The S&S Cycle Time Saver...09280050- SKU:
- 09280050
- Availability:
- Ships Same Business Day
- Weight:
- 1.06 LBS
- LENGTH:
- 9,500' - 11,500'
- LENGTH IMPERIAL:
- 9.500' - 11.500'
- MATERIAL:
- CHROMOLY STEEL
- MODEL:
- TIME SAVER
- RIDING STYLE:
- STREET
- STYLE:
- ADJUSTABLE
- PRODUCT NAME:
- PUSHROD KIT
- UNITS:
- 4 PACK
MSRP: $214.95Now: $193.46Was: $214.95 -
On Sale
S&S CYCLE Time Saver Pushrods - Twin Cam 930-0053
S&S CYCLE
MSRP: $214.95Now: $193.46Was: $214.95If you're doing cam work, rocker upgrades, or routine valve train maintenance on your Twin Cam or Evolution big-twin, pushrod adjustment shouldn't eat up your shop time. The S&S Cycle Time Saver...09280051- SKU:
- 09280051
- Availability:
- Ships Same Business Day
- Weight:
- 1.11 LBS
- LENGTH IMPERIAL:
- 9.500' - 11.500'
- MODEL:
- TIME SAVER
- RIDING STYLE:
- STREET
- STYLE:
- ADJUSTABLE
- MATERIAL:
- CHROMOLY STEEL
- LENGTH:
- 9,500' - 11,500'
- PRODUCT NAME:
- PUSHROD KIT
- UNITS:
- 4 PACK
MSRP: $214.95Now: $193.46Was: $214.95Qty in Cart: 0Quantity:Price:MSRP: $214.95Now: $193.46Was: $214.95Subtotal:
