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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EASTERN MOTORCYCLE PARTS Pinion Gear Nut A-7916A
EASTERN MOTORCYCLE PARTS
$22.90The pinion gear nut is a critical fastening component that maintains proper bearing preload and gear mesh alignment in your drivetrain. A loose or damaged pinion nut can result in catastrophic gear failure, excessive backlash, and loss of power transfer...09500225- SKU:
- 09500225
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- TYPE:
- PINION SHAFT GEAR
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- PRODUCT NAME:
- NUT
$22.90 -
EASTERN MOTORCYCLE PARTS Crank Case Oil Screen A-24981-66
EASTERN MOTORCYCLE PARTS
$20.20A clogged or deteriorated crankcase oil screen restricts flow and compromises engine lubrication efficiency, leading to increased wear and potential catastrophic failure. The EASTERN MOTORCYCLE PARTS Crank Case Oil Screen A-24981-66 ensures consistent...09500227- SKU:
- 09500227
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- STREET
- TYPE:
- OIL
- UNITS:
- 5 PACK
- PRODUCT NAME:
- SCREEN
$20.20Qty in Cart: 0Quantity:Price:$20.20Subtotal: -
Hiflofiltro Oil Filter for Buell 1200 Ulysses XB12X 2006-2010 HF177
HIFLOFILTRO
$9.11The HIFLOFILTRO HF177 oil filter is engineered specifically for your Buell 1200 Ulysses XB12X, delivering the filtration precision your liquid-cooled engine demands. Quality oil filtration directly impacts engine longevity and performance—this filter...07120044- SKU:
- 07120044
- Availability:
- Ships Same Business Day
- Weight:
- 0.51 LBS
- LENGTH METRIC:
- 73 MM
- PRODUCT NAME:
- OIL FILTER
- TYPE:
- SPIN-ON
- COLOR/FINISH:
- BLACK
- BASE COLOR:
- BLACK
- FILTER MEDIA MATERIAL:
- TRI-FIBER
- MATERIAL:
- STEEL
- STYLE:
- PREMIUM
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- WIDTH METRIC:
- 65 MM
$9.11 -
Wiseco Wrist Pin for 1994-1998 Harley-Davidson FLHR Road King S534
WISECO
$25.95Your Road King's engine demands components engineered for precision and durability—the Wiseco S534 wrist pin delivers both, whether you're cruising highway miles or pushing peak performance at the track. Built with high-strength materials and optimized...S534- SKU:
- S534
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- LENGTH METRIC:
- 55.9 MM
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- APPLICATION:
- PISTON
- LENGTH:
- 55,9 MM
- MATERIAL:
- SILICONE
- UNITS:
- EACH
- OUTSIDE DIAMETER:
- 20 MM
- PRODUCT NAME:
- WRIST PIN
- OUTSIDE DIAMETER METRIC:
- 20 MM
$25.95 -
Wiseco Piston Kit 95ci 9.5:1 Compression for Harley-Davidson FLHRCI Road King Classic 1999-2006 K0207P1
WISECO
$322.95When you're pushing your Road King Classic to its limits, factory pistons can't handle the demands of aggressive cam profiles and larger valve configurations. The Wiseco K0207P1 delivers the durability and precision engineering you need to safely extract...09031559- SKU:
- 09031559
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- BORE OVERSIZE - IMPERIAL:
- +0.010'
- BORE SIZE IMPERIAL:
- 3.885'
- DISPLACEMENT:
- 1546 CC
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- COMPRESSION RATIO IMPERIAL:
- 9.5:1
- PISTON HEAD SHAPE:
- DOMED
- BORE - OVERSIZE:
- +0,010'
- SKIRT COATING:
- ARMORGLIDE®
- STROKE LENGTH IMPERIAL:
- 4'
- STYLE:
- TRACKER™ SERIES
- UNITS:
- KIT
$322.95 -
Wiseco Tracker Series Piston Kit 95ci 2006 Harley-Davidson FLHX Street Glide K0207P2
WISECO
$322.95If you're running a 95ci big-twin and want reliable power without compromise, the Wiseco Tracker Series delivers the precision engineering that separates maintained performance from engine failure. Factory OEM pistons wear and lose compression—this...09031560- SKU:
- 09031560
- Availability:
- Ships Same Business Day
- Weight:
- 2.85 LBS
- BORE SIZE IMPERIAL:
- 3.895'
- DISPLACEMENT:
- 1562 CC
- PISTON HEAD SHAPE:
- DOMED
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 9.5:1
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- BORE OVERSIZE - IMPERIAL:
- +0.020'
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- STREET
- SKIRT COATING:
- ARMORGLIDE®
- BORE - OVERSIZE:
- +0,020'
- STROKE LENGTH IMPERIAL:
- 4'
- STYLE:
- TRACKER™ SERIES
$322.95 -
Wiseco Tracker Series Piston Kit 95ci Harley Davidson FLHR 1999-2006 K0208PS
WISECO
$322.95If you're running a 95ci Harley Davidson FLHR and want to reclaim lost compression and durability, the Wiseco Tracker Series Piston Kit K0208PS delivers the precision engineering your motor needs. Factory pistons wear, lose ring sealing, and eventually...09031561- SKU:
- 09031561
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- BORE - OVERSIZE:
- STANDARD
- DISPLACEMENT:
- 1546 CC
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- STYLE:
- TRACKER™ SERIES
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- SKIRT COATING:
- ARMORGLIDE®
- STROKE LENGTH IMPERIAL:
- 4'
- BORE OVERSIZE - IMPERIAL:
- STANDARD
- BORE SIZE IMPERIAL:
- 3.875'
- PISTON HEAD SHAPE:
- DOMED
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
$322.95 -
Wiseco Piston Kit 88-95 Harley-Davidson FLHR Road King 1999-2006 K0208P1
WISECO
$322.95Stock pistons can't handle the demands of a properly tuned engine—increased boost, aggressive cam profiles, and extended RPM ranges will cause premature wear and loss of compression. The Wiseco K0208P1 kit delivers forged construction, precision ring...09031562- SKU:
- 09031562
- Availability:
- Ships Same Business Day
- Weight:
- 2.85 LBS
- BORE SIZE IMPERIAL:
- 3.885'
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- DISPLACEMENT:
- 1554 CC
- PISTON HEAD SHAPE:
- DOMED
- BORE OVERSIZE - IMPERIAL:
- +0.010'
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE:
- +0,010'
- SKIRT COATING:
- ARMORGLIDE®
- STROKE LENGTH IMPERIAL:
- 4'
- STYLE:
- TRACKER™ SERIES
- UNITS:
- KIT
$322.95Qty in Cart: 0Quantity:Price:$322.95Subtotal: -
Wiseco Piston Kit 1999-2006 Harley-Davidson FLHRSI Road King Custom K0208P2
WISECO
$322.95If you're building a high-output engine for your Road King Custom or pushing beyond stock power levels, factory pistons won't cut it. The Wiseco K0208P2 is engineered specifically for forced induction and aggressive cam profiles, delivering the strength...09031563- SKU:
- 09031563
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- DISPLACEMENT:
- 1562 CC
- PISTON HEAD SHAPE:
- DOMED
- UNITS:
- KIT
- BORE - OVERSIZE:
- +0,020'
- BORE OVERSIZE - IMPERIAL:
- +0.020'
- BORE SIZE IMPERIAL:
- 3.895'
- STROKE LENGTH IMPERIAL:
- 4'
- STYLE:
- TRACKER™ SERIES
- PISTON MATERIAL:
- FORGED
- SKIRT COATING:
- ARMORGLIDE®
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
$322.95Qty in Cart: 0Quantity:Price:$322.95Subtotal: -
Wiseco Tracker Series Piston Kit 97ci 10.5:1 Compression Harley Davidson FLHRI Road King 1999 K0209PS
WISECO
$351.95If you're building or rebuilding your 1999 FLHRI Road King for serious performance, the Wiseco Tracker Series pistons deliver the durability and precision your engine demands. This forged piston kit handles aggressive cam profiles and larger valves...09031564- SKU:
- 09031564
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- BORE - OVERSIZE:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- BORE OVERSIZE - IMPERIAL:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- PISTON HEAD SHAPE:
- DOMED
- PISTON MATERIAL:
- FORGED
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- KIT
- PRODUCT NAME:
- PISTON KIT
- STROKE LENGTH IMPERIAL:
- 4'
- STYLE:
- TRACKER™ SERIES
- BORE SIZE IMPERIAL:
- 3.937'
- DISPLACEMENT:
- 1596 CC
- RIDING STYLE:
- STREET
$351.95 -
Wiseco Tracker Series Piston Kit 3.875" 10.5:1 Compression Ratio for Harley-Davidson 103ci Twin Cam 2007-2017 K0210PS
WISECO
$322.95If you're running a 103ci Twin Cam and want measurable gains in power, durability, and ring sealing efficiency, the Wiseco Tracker Series Piston Kit delivers the precision engineering that separates reliable performance builds from marginal ones. This...09031565- SKU:
- 09031565
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- BORE OVERSIZE - IMPERIAL:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 4-3/8'
- BORE SIZE IMPERIAL:
- 3.875'
- PISTON HEAD SHAPE:
- DOMED
- STYLE:
- TRACKER™ SERIES
- DISPLACEMENT:
- 1691 CC
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- KIT
$322.95Qty in Cart: 0Quantity:Price:$322.95Subtotal: -
Wiseco 103ci Piston Kit 2007-2017 Harley-Davidson FLHR K0210P1
WISECO
$322.95If you're pushing your 2007-2017 Harley-Davidson FLHR to higher RPMs or running a more aggressive cam profile, your factory pistons are likely holding you back. The Wiseco 103ci Piston Kit K0210P1 delivers the precision engineering and durability...09031566- SKU:
- 09031566
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
- BORE - OVERSIZE:
- +0,010'
- UNITS:
- KIT
- BORE OVERSIZE - IMPERIAL:
- +0.010'
- BORE SIZE IMPERIAL:
- 3.885'
- DISPLACEMENT:
- 1700 CC
- PISTON HEAD SHAPE:
- DOMED
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- SKIRT COATING:
- ARMORGLIDE®
- STYLE:
- TRACKER™ SERIES
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- STROKE LENGTH IMPERIAL:
- 4-3/8'
$322.95 -
Wiseco Tracker Series Piston Kit for Harley Davidson 103ci Twin Cam 2011-2017 K0210P2
WISECO
$322.95Stock pistons can't handle the demands of a properly tuned 103ci Twin Cam—they'll fail under sustained high RPM and boost. The Wiseco Tracker Series K0210P2 delivers the durability and sealing precision you need to run aggressive power without...09031567- SKU:
- 09031567
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- BORE SIZE IMPERIAL:
- 3.895'
- PISTON MATERIAL:
- ALUMINUM ALLOY
- BORE - OVERSIZE:
- +0,020'
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- STROKE LENGTH IMPERIAL:
- 4-3/8'
- BORE OVERSIZE - IMPERIAL:
- +0.020'
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- STYLE:
- TRACKER™ SERIES
- DISPLACEMENT:
- 1709 CC
- PISTON HEAD SHAPE:
- DOMED
- PISTON MATERIAL:
- FORGED
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- KIT
$322.95 -
Wiseco 1200cc Reverse Dome Piston Kit for 1986-2003 Harley-Davidson XLH883 K0212PS
WISECO
$268.95If you're rebuilding an 883 Sportster with serious intentions—whether that's more displacement, aggressive valve timing, or forced induction—you need pistons engineered to handle it. The Wiseco K0212PS reverse dome design provides the valve clearance and...09031568- SKU:
- 09031568
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- BORE OVERSIZE - IMPERIAL:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- BORE SIZE IMPERIAL:
- 3.498'
- DISPLACEMENT:
- 1200 CC
- PISTON HEAD SHAPE:
- REVERSE
- SKIRT COATING:
- ARMORGLIDE®
- STYLE:
- TRACKER™ SERIES
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 9.5:1
- BORE - OVERSIZE:
- STANDARD
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 3-13/16'
$268.95Qty in Cart: 0Quantity:Price:$268.95Subtotal: -
Wiseco 1200cc Reverse Dome Piston Kit for 2004-2006 Harley-Davidson XL 883 Custom K0212P1
WISECO
$268.95If you're serious about extracting more power from your 883 Custom, a quality piston upgrade is non-negotiable. Wiseco's forged construction and precision engineering deliver the reliability and performance gains you need without cutting corners. This...09031569- SKU:
- 09031569
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- BORE SIZE IMPERIAL:
- 3.508'
- PISTON MATERIAL:
- FORGED
- SKIRT COATING:
- ARMORGLIDE®
- BORE OVERSIZE - IMPERIAL:
- +0.010'
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 3-13/16'
- COMPRESSION RATIO IMPERIAL:
- 9.5:1
- DISPLACEMENT:
- 1207 CC
- UNITS:
- KIT
- BORE - OVERSIZE:
- +0,010'
- PISTON HEAD SHAPE:
- REVERSE
- STYLE:
- TRACKER™ SERIES
$268.95 -
Wiseco Tracker Series Piston Kit 3.527 in Bore 9.5:1 Compression Harley-Davidson XL883 2017-2022 K0212P3
WISECO
$244.95If you're running an 883 Sportster and want genuine performance gains without compromise, a quality piston kit is foundational. The Wiseco Tracker Series delivers the precision tolerances and durability expected in high-revving applications, with...09031571- SKU:
- 09031571
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PISTON MATERIAL:
- FORGED
- BORE SIZE IMPERIAL:
- 3.528'
- PISTON HEAD SHAPE:
- REVERSE
- SKIRT COATING:
- ARMORGLIDE®
- STYLE:
- TRACKER™ SERIES
- UNITS:
- KIT
- BORE - OVERSIZE:
- +0,030'
- COMPRESSION RATIO IMPERIAL:
- 9.5:1
- BORE OVERSIZE - IMPERIAL:
- +0.030'
- DISPLACEMENT:
- 1222 CC
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 3-13/16'
$244.95 -
Wiseco Ring Set 3.1875in 1972-1985 Harley-Davidson XLH1000 3208X
WISECO
$52.95Rebuild your XLH1000 with rings engineered to handle peak combustion pressures and maintain proper blow-by sealing across thousands of heat cycles. Wiseco's precision ring sets are the baseline component for any serious Harley engine restoration,...3208X- SKU:
- 3208X
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- RIDING STYLE:
- STREET
- BORE OVERSIZE - IMPERIAL:
- +0.020'
- BORE SIZE IMPERIAL:
- 3.1875'
- RING MATERIAL:
- STEEL
- BORE - OVERSIZE:
- +0,020'
- MODEL:
- X-RING
- PRODUCT NAME:
- PISTON RING
- UNITS:
- SET
$52.95Qty in Cart: 0Quantity:Price:$52.95Subtotal: -
Hastings HASTINGS Piston Rings - Twin Cam 2M4985005
HASTINGS
$87.95Piston rings are critical wear items that directly impact compression, blow-by control, and oil consumption—making quality rings essential for any rebuild or high-mileage engine refresh. The Hastings 2M4985005 delivers proven durability and reliable...DS750875- SKU:
- DS750875
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- RING MATERIAL:
- MOLY COATED
- BORE - OVERSIZE:
- +0,005'
- BORE OVERSIZE - IMPERIAL:
- +0.005'
- BORE SIZE IMPERIAL:
- 3.875'
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- PISTON RING
- STYLE:
- PERFORMANCE REPLACEMENT
- UNITS:
- SET
$87.95 -
Hastings HASTINGS Piston Rings - Twin Cam 2M4985
HASTINGS
$87.95Piston rings are critical to engine sealing, compression, and oil control—worn or improper rings lead to blow-by, power loss, and accelerated wear. The Hastings 2M4985 Twin Cam piston ring set delivers OEM-quality performance with proven materials and...DS750874- SKU:
- DS750874
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE OVERSIZE - IMPERIAL:
- STANDARD
- UNITS:
- SET
- BORE SIZE IMPERIAL:
- 3.875'
- PRODUCT NAME:
- PISTON RING
- STYLE:
- PERFORMANCE REPLACEMENT
- RIDING STYLE:
- STREET
- RING MATERIAL:
- MOLY COATED
$87.95 -
Hastings HASTINGS Piston Rings - Twin Cam 2M4793
HASTINGS
$75.95Piston rings are critical to engine sealing, compression, and oil control—and worn or substandard rings will cost you power, fuel efficiency, and engine longevity. Hastings 2M4793 rings deliver OEM-quality performance with precision manufacturing that...DS750869- SKU:
- DS750869
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- BORE - OVERSIZE:
- STANDARD
- BORE OVERSIZE - IMPERIAL:
- STANDARD
- UNITS:
- SET
- PRODUCT NAME:
- PISTON RING
- STYLE:
- PERFORMANCE REPLACEMENT
- BORE SIZE IMPERIAL:
- 3.750'
- RIDING STYLE:
- STREET
- RING MATERIAL:
- MOLY COATED
$75.95
