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
-
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-126W
REVOLUTION PERFORMANCE, LLC
$1,529.95A precision cylinder kit built for builders who demand exact bore specifications and reliable performance from their engine build. The Revolution Performance RP201-126W delivers the dimensional...09311046- SKU:
- 09311046
- Availability:
- Ships Same Business Day
- Weight:
- 21.51 LBS
- BORE SIZE IMPERIAL:
- 4.250'
- DISPLACEMENT:
- 124'
- PRODUCT NAME:
- CYLINDER KIT
- STROKE LENGTH IMPERIAL:
- 4-3/8'
- COLOR/FINISH:
- HIGHLIGHTED FINS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$1,529.95 -
REVOLUTION PERFORMANCE, LLC Cylinder Kit RP201-130W
REVOLUTION PERFORMANCE, LLC
$1,529.95` and `/` tags only 3. **Concise technical specifications** (2-4 words per bullet) 4. **Industry-standard terminology** with zero marketing fluff 5. **SEO-friendly copy** that reads naturally Please...09311047- SKU:
- 09311047
- Availability:
- Ships Same Business Day
- Weight:
- 21.61 LBS
- BORE SIZE IMPERIAL:
- 4.250'
- DISPLACEMENT:
- 124'
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 4-3/8'
- COLOR/FINISH:
- GRANITE
- UNITS:
- KIT
$1,529.95Qty in Cart: 0Quantity:Price:$1,529.95Subtotal: -
REVOLUTION PERFORMANCE, LLC Cylinder Kit - 85" - Black with Highlighted Fins RP201-204W
REVOLUTION PERFORMANCE, LLC
$1,479.95If you're serious about extracting maximum displacement and horsepower from your engine without machine work, the Revolution Performance 85" Cylinder Kit is engineered for immediate bolt-on...09311056- SKU:
- 09311056
- Availability:
- Ships Same Business Day
- Weight:
- 20.91 LBS
- STROKE LENGTH IMPERIAL:
- 4-1/4'
- UNITS:
- KIT
- BORE SIZE IMPERIAL:
- 3-9/16'
- DISPLACEMENT:
- 85'
- FEATURES:
- DOMED
- PRODUCT NAME:
- BIG BORE CYLINDER KIT
- COLOR/FINISH:
- HIGHLIGHTED FINS
- COLOR/FINISH:
- BLACK
- COMPRESSION RATIO IMPERIAL:
- 10.3:1
- RIDING STYLE:
- STREET
$1,479.95 -
Wiseco Piston Kit 1995-2003 Harley-Davidson XL1200 3.498" Bore .010" Over K1686
WISECO
$447.95Whether you're rebuilding a tired top-end or taking your XL1200 to the next displacement level, the Wiseco K1686 piston kit delivers the precision engineering needed for sustained power gains and...09030147- SKU:
- 09030147
- Availability:
- Ships Same Business Day
- Weight:
- 2.34 LBS
- DISPLACEMENT:
- 1200 CC
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 3-13/16'
- BORE - OVERSIZE:
- +0,010'
- BORE OVERSIZE - IMPERIAL:
- +0.010'
- PISTON MATERIAL:
- ALUMINUM
- PISTON MATERIAL:
- FORGED
- UNITS:
- EACH
- BORE SIZE IMPERIAL:
- 3.508'
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
$447.95Qty in Cart: 0Quantity:Price:$447.95Subtotal: -
Wiseco Piston Kit with Gasket for 1999-2006 Harley-Davidson Road King FLHR VT2711
WISECO
$659.95A top-end rebuild demands precision components that can handle sustained RPMs and thermal stress. The Wiseco Piston Kit delivers exactly that—forged high-silicon aluminum pistons engineered for...09030789- SKU:
- 09030789
- Availability:
- Ships Same Business Day
- Weight:
- 4.12 LBS
- BORE - OVERSIZE:
- +0,010'
- TYPE:
- TOP END
- UNITS:
- EACH
- DISPLACEMENT:
- 1554 CC
- PISTON MATERIAL:
- ALUMINUM
- PISTON MATERIAL:
- FORGED
- BORE OVERSIZE - IMPERIAL:
- +0.010'
- BORE SIZE IMPERIAL:
- 3.875'
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 4'
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- PRODUCT NAME:
- REBUILD KIT
$659.95Qty in Cart: 0Quantity:Price:$659.95Subtotal: -
Wiseco Piston Kit 2004-2017 Harley-Davidson XL1200 0.020" K1748
WISECO
$424.95A top-end rebuild demands precision components that can handle sustained performance demands, and the Wiseco Piston Kit delivers exactly that. This complete kit eliminates the guesswork of sourcing...09030585- SKU:
- 09030585
- Availability:
- Ships Same Business Day
- Weight:
- 2.24 LBS
- BORE OVERSIZE - IMPERIAL:
- +0.020'
- DISPLACEMENT:
- 1200 CC
- BORE - OVERSIZE:
- +0,020'
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- PRODUCT NAME:
- REBUILD KIT
- BORE SIZE IMPERIAL:
- 3.498'
- TYPE:
- TOP END
- UNITS:
- EACH
- PISTON MATERIAL:
- ALUMINUM
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 3-13/16'
$424.95Qty in Cart: 0Quantity:Price:$424.95Subtotal: -
Wiseco Piston Kit 1972-1985 Harley-Davidson Sportster XLH K1604
WISECO
$344.95When you're rebuilding a classic Sportster or pushing for higher displacement, piston quality directly impacts engine longevity and reliability. The Wiseco K1604 kit gives you forged pistons...K1604- SKU:
- K1604
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- TYPE:
- TOP END
- UNITS:
- EACH
- BORE OVERSIZE - IMPERIAL:
- +0.040'
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- DISPLACEMENT:
- 1022 CC
- STROKE LENGTH IMPERIAL:
- 3-13/16'
- BORE - OVERSIZE:
- +0,040'
- BORE SIZE IMPERIAL:
- 3.228'
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- STREET
$344.95Qty in Cart: 0Quantity:Price:$344.95Subtotal: -
Wiseco Piston Kit 1948-1964 Harley-Davidson FLHFB Electra Glide K1606
WISECO
$378.95A top-end rebuild is the foundation of reliable, high-performance motorcycle operation—and this Wiseco Piston Kit gives you everything needed for a professional-quality job. Whether you're restoring...K1606- SKU:
- K1606
- Availability:
- Ships Same Business Day
- Weight:
- 3.25 LBS
- DISPLACEMENT:
- 1213 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- UNITS:
- EACH
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- BORE - OVERSIZE:
- +0,010'
- BORE OVERSIZE - IMPERIAL:
- +0.010'
- PISTON MATERIAL:
- FORGED
- STROKE LENGTH IMPERIAL:
- 3-31/32'
- BORE SIZE IMPERIAL:
- 3.447'
- COMPRESSION RATIO IMPERIAL:
- 9.0:1
- RIDING STYLE:
- STREET
$378.95 -
Wiseco Piston Kit 1978-1984 Harley-Davidson FLH K1615
WISECO
$384.95A top-end rebuild on your classic Big Twin demands pistons engineered for reliability and performance—and Wiseco's high-silicon aluminum construction delivers both. This complete kit eliminates the...K1615- SKU:
- K1615
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- BORE - OVERSIZE:
- +0,020'
- DISPLACEMENT:
- 1353 CC
- COMPRESSION RATIO IMPERIAL:
- 7.0:1
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 4-1/4'
- TYPE:
- TOP END
- UNITS:
- EACH
- BORE OVERSIZE - IMPERIAL:
- +0.020'
- PISTON MATERIAL:
- FORGED
- BORE SIZE IMPERIAL:
- 3.518'
$384.95Qty in Cart: 0Quantity:Price:$384.95Subtotal: -
REVOLUTION PERFORMANCE, LLC Gasket Kit - M8 RP10181HB030014
REVOLUTION PERFORMANCE, LLC
$89.95A quality gasket kit is essential for maintaining compression integrity and preventing fluid leaks in high-performance applications. The REVOLUTION PERFORMANCE M8 RP10181HB030014 delivers the...09347159- SKU:
- 09347159
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$89.95Qty in Cart: 0Quantity:Price:$89.95Subtotal: -
DRAG SPECIALTIES Oil Pump Assembly - XL 26204-91A
DRAG SPECIALTIES
$312.65A reliable oil pump is the backbone of engine longevity—without proper lubrication and pressure, internal components wear prematurely and catastrophic failure follows. This DRAG SPECIALTIES...09320189- SKU:
- 09320189
- Availability:
- Ships Same Business Day
- Weight:
- 1.81 LBS
- BASE COLOR:
- SILVER
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PUMP ASSEMBLY
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- COLOR/FINISH:
- ALUMINUM
- FLOW RATE:
- STANDARD
- UNITS:
- EACH
$312.65 -
DRAG SPECIALTIES Crankcase Filter with Mounting Base 35-0312-BC299
DRAG SPECIALTIES
$33.87A quality crankcase filtration system is essential for keeping unwanted vapors and contaminants out of your intake tract—especially in high-performance and forced induction applications where clean...DS289515- SKU:
- DS289515
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- PRODUCT NAME:
- VENT FILTER
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
- UNITS:
- EACH
$33.87 -
DRAG SPECIALTIES Rear Motor Mount - Dyna E28-0037
DRAG SPECIALTIES
$204.53Engine vibration and movement under load compromise handling precision and accelerate wear on surrounding components. A degraded motor mount forces your drivetrain to work harder, reducing power...09330102- SKU:
- 09330102
- Availability:
- Ships Same Business Day
- Weight:
- 1.86 LBS
- BASE COLOR:
- BLACK
- UNITS:
- EACH
- PRODUCT NAME:
- MOUNT
- COLOR/FINISH:
- BLACK
- MOUNTING POSITION:
- REAR
- RIDING STYLE:
- STREET
- TYPE:
- ENGINE
$204.53 -
DRAG SPECIALTIES Isolator Mount - Front - XL E28-0033
DRAG SPECIALTIES
$34.93Engine vibration degrades handling precision and accelerates wear on suspension components—a problem that becomes critical at high RPM or under hard acceleration. The DRAG SPECIALTIES Isolator Mount...09330054- SKU:
- 09330054
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- BASE COLOR:
- BLACK
- RIDING STYLE:
- STREET
- TYPE:
- ISOLATOR
- MOUNTING POSITION:
- FRONT
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- MOUNT
$34.93 -
DRAG SPECIALTIES Top Motor Mount - Chrome E28-0036
DRAG SPECIALTIES
$90.05Motor mounts are a critical foundation for engine stability and vibration isolation—a worn or inadequate mount directly impacts driveline harmony, chassis feedback, and longevity of surrounding...09330078- SKU:
- 09330078
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- PRODUCT NAME:
- MOUNT
- RIDING STYLE:
- STREET
- TYPE:
- ENGINE
- MOUNTING POSITION:
- TOP
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
$90.05 -
DRAG SPECIALTIES Braided Oil/Fuel Line - Stainless Steel - 5/16" - 3' 096606-HC9
DRAG SPECIALTIES
$27.51Fuel and oil system reliability depends on components that can handle consistent pressure and thermal cycling without degradation. This Drag Specialties braided line delivers the durability of...DS096606- SKU:
- DS096606
- Availability:
- Ships Same Business Day
- Weight:
- 0.63 LBS
- TYPE:
- FUEL
- COLOR/FINISH:
- STAINLESS STEEL
- INSIDE DIAMETER METRIC:
- 7.9 MM
- LENGTH IMPERIAL:
- 3'
- BASE FINISH:
- NATURAL
- INSIDE DIAMETER IMPERIAL:
- 5/16'
- LENGTH METRIC:
- 91 CM
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- HOSE
- STYLE:
- BRAIDED
- UNITS:
- EACH
- HOSE SIZE:
- -5
- RIDING STYLE:
- STREET
- TYPE:
- OIL
$27.51Qty in Cart: 0Quantity:Price:$27.51Subtotal: -
DRAG SPECIALTIES Braided Oil/Fuel Line - Stainless Steel - 3/8" - 25' 096614-BX-LB6
DRAG SPECIALTIES
$209.83Braided stainless steel lines eliminate the risk of fuel and oil degradation from standard rubber hoses, especially critical in high-heat racing applications where consistent fluid delivery directly...DS096614- SKU:
- DS096614
- Availability:
- Ships Same Business Day
- Weight:
- 4.38 LBS
- BASE FINISH:
- NATURAL
- INSIDE DIAMETER METRIC:
- 9.5 MM
- LENGTH IMPERIAL:
- 25'
- LENGTH METRIC:
- 7.62 M
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- HOSE SIZE:
- -6
- MATERIAL:
- STAINLESS STEEL
- PRODUCT NAME:
- HOSE
- STYLE:
- BRAIDED
- COLOR/FINISH:
- STAINLESS STEEL
- TYPE:
- FUEL
- UNITS:
- ROLL
- INSIDE DIAMETER IMPERIAL:
- 3/8'
$209.83 -
DRAG SPECIALTIES Braided Hose - Black - 1/4" - 6' 096630-HC9
DRAG SPECIALTIES
$46.59Reliable fluid transfer is non-negotiable in high-performance applications, and substandard hose can compromise both safety and engine efficiency. This DRAG SPECIALTIES braided hose delivers the...DS096671- SKU:
- DS096671
- Availability:
- Ships Same Business Day
- Weight:
- 0.44 LBS
- INSIDE DIAMETER IMPERIAL:
- 1/4'
- PRODUCT NAME:
- HOSE
- STYLE:
- BRAIDED
- TYPE:
- FUEL
- LENGTH IMPERIAL:
- 6'
- LENGTH METRIC:
- 183 CM
- UNITS:
- EACH
- BASE COLOR:
- BLACK
- INSIDE DIAMETER METRIC:
- 6.4 MM
- MATERIAL:
- NYLON
- COLOR/FINISH:
- BLACK
- HOSE SIZE:
- -4
- RIDING STYLE:
- STREET
- TYPE:
- OIL
$46.59Qty in Cart: 0Quantity:Price:$46.59Subtotal: -
DRAG SPECIALTIES Oil Plug - With Temperature Gauge 20263A-BX9
DRAG SPECIALTIES
$41.29Real-time oil temperature monitoring is critical for maintaining engine health during high-performance driving. This DRAG SPECIALTIES oil plug integrates a precision temperature gauge directly into...DS330033- SKU:
- DS330033
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- HOUSING COLOR:
- CHROME
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- OIL PLUG
- STYLE:
- ELECTRONIC
- LENGTH IMPERIAL:
- 2.75'
- TYPE:
- TEMPERATURE GAUGE
- UNITS:
- EACH
$41.29 -
DRAG SPECIALTIES Point Cover - Chrome 30-0152-BC223
DRAG SPECIALTIES
$15.85A points cover isn't just a cosmetic piece—it protects your ignition system from debris, moisture, and contamination while adding a polished appearance to your engine bay. The DRAG SPECIALTIES chrome...DS373917- SKU:
- DS373917
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- PRODUCT NAME:
- COVER
- TYPE:
- POINTS
- MATERIAL:
- STEEL
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$15.85
