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
-
Hiflofiltro Chrome Oil Filter for Harley Davidson FXD Dyna Super Glide 1996-1998 HF173C
HIFLOFILTRO
$17.34Keeping your FXD Dyna's engine running clean is non-negotiable for longevity and performance—and the Hiflofiltro HF173C delivers industry-standard filtration in a chrome-finished package that matches your bike's aesthetic. This OEM-equivalent filter...HF173C- SKU:
- HF173C
- Availability:
- Ships Same Business Day
- Weight:
- 0.87 LBS
- COLOR/FINISH:
- CHROME
- STYLE:
- PREMIUM
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- TRI-FIBER
- LENGTH METRIC:
- 141 MM
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- TYPE:
- SPIN-ON
- WIDTH METRIC:
- 76 MM
- BASE FINISH:
- CHROME
- PRODUCT NAME:
- OIL FILTER
$17.34 -
Hiflo V-Rod 2002-2017 Oil Filter Chrome HF174C
HIFLOFILTRO
$12.37Effective oil filtration is non-negotiable for engine longevity, especially in high-performance applications where operating temperatures and pressures demand reliable protection. The HIFLOFILTRO HF174C delivers OEM-equivalent filtration for your V-Rod...HF174C- SKU:
- HF174C
- Availability:
- Ships Same Business Day
- Weight:
- 0.72 LBS
- RIDING STYLE:
- STREET
- TYPE:
- SPIN-ON
- PRODUCT NAME:
- OIL FILTER
- STYLE:
- PREMIUM
- BASE FINISH:
- CHROME
- LENGTH METRIC:
- 86 MM
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- FILTER MEDIA MATERIAL:
- TRI-FIBER
- MATERIAL:
- STEEL
- WIDTH METRIC:
- 76 MM
$12.37 -
Wiseco Piston Kit with Gasket for 2006 Harley-Davidson FLST Heritage Softail VT2719
WISECO
$716.95A top-end rebuild demands precision components that won't compromise engine integrity or performance. The Wiseco Piston Kit delivers the complete solution—forged pistons, rings, wrist pins, and gaskets—engineered from high-silicon aluminum to handle the...09030791- SKU:
- 09030791
- Availability:
- Ships Same Business Day
- Weight:
- 3.97 LBS
- DISPLACEMENT:
- 1546 CC
- TYPE:
- TOP END
- COMPRESSION RATIO IMPERIAL:
- 9.0:1
- PRODUCT NAME:
- REBUILD KIT
- BORE SIZE IMPERIAL:
- 3.875'
- STROKE LENGTH IMPERIAL:
- 4'
- BORE - OVERSIZE:
- STANDARD
- BORE OVERSIZE - IMPERIAL:
- STANDARD
- PISTON MATERIAL:
- ALUMINUM
- PISTON MATERIAL:
- FORGED
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$716.95 -
Wiseco Piston Kit 2022-2023 Harley-Davidson Street Glide ST FLHXST K2801
WISECO
$524.95If you're pushing your M8 Street Glide ST to its limits, factory pistons won't cut it. The Wiseco K2801 kit delivers the compression ratio and protective coatings you need to safely extract more power while keeping your engine reliable under sustained...09031675- SKU:
- 09031675
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- SKIRT COATING:
- ARMORFIT™
- DISPLACEMENT:
- 121'
- PISTON HEAD SHAPE:
- DOMED
- UNITS:
- KIT
- BORE OVERSIZE - IMPERIAL:
- +0.188'
- PISTON MATERIAL:
- ARMORX™
- BORE - OVERSIZE:
- +0,188'
- BORE SIZE IMPERIAL:
- 4.135'
$524.95 -
Wiseco Piston Kit 117in 4.075in Bore 11.1:1 Compression Harley-Davidson FLFBS 2018-2023 K2804
WISECO
$576.95If you're running a 117" M8 in your 2018-2023 FLFBS, this Wiseco piston kit delivers the compression ratio and material science your engine demands for reliable power. The ArmorX™ and ArmorFit™ coatings protect against wear while the 11.1:1 compression...09031678- SKU:
- 09031678
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- COMPRESSION RATIO IMPERIAL:
- 11.1:1
- DISPLACEMENT:
- 117'
- PISTON MATERIAL:
- ARMORX™
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- SKIRT COATING:
- ARMORFIT™
- BORE SIZE IMPERIAL:
- 4.075'
- STROKE LENGTH IMPERIAL:
- 4-1/2'
- UNITS:
- KIT
$576.95 -
Wiseco Piston Kit for Harley-Davidson 1999-2006 Road King FLHR 4.000" Stroke 9.5:1 Compression K0207PS
WISECO
$322.95If you're running a 1999-2006 Road King and want to unlock serious power gains without compromising reliability, this Wiseco piston kit is the foundation you need. The forged construction and optimized valve pockets allow larger displacement builds and...09031558- SKU:
- 09031558
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- BORE SIZE IMPERIAL:
- 3.875'
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 4'
- STYLE:
- TRACKER™ SERIES
- BORE - OVERSIZE:
- STANDARD
- DISPLACEMENT:
- 1546 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- BORE OVERSIZE - IMPERIAL:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 9.5:1
- PISTON HEAD SHAPE:
- DOMED
- PISTON MATERIAL:
- FORGED
- SKIRT COATING:
- ARMORGLIDE®
- UNITS:
- KIT
$322.95 -
Wiseco Piston Kit 3.875 in. Bore 9:1 CR for Harley-Davidson Twin Cam 103 2010-2017 K2788
WISECO
$576.95Stock pistons in your Twin Cam 103 are a limiting factor when you're serious about performance and reliability. Wiseco's forged construction and ArmorGlide™ coating reduce friction and thermal stress, translating directly to more consistent power...09101996- SKU:
- 09101996
- Availability:
- Ships Same Business Day
- Weight:
- 2.34 LBS
- BORE - OVERSIZE:
- 0,125'
- PISTON HEAD SHAPE:
- REVERSE
- MODEL:
- VM SERIES
- SKIRT COATING:
- ARMORFIT™
- BORE OVERSIZE - IMPERIAL:
- 0.125'
- BORE SIZE IMPERIAL:
- 3.875'
- COMPRESSION RATIO IMPERIAL:
- 9.0:1
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 4-3/8'
- DISPLACEMENT:
- 1691 CC
- PISTON MATERIAL:
- ALUMINUM
- UNITS:
- KIT
$576.95 -
Wiseco Piston Kit 3.875 in. Bore 10.5:1 Compression Ratio Harley-Davidson Twin Cam 103 2011-2016 K2792
WISECO
$576.95If you're pushing your Twin Cam 103 hard—whether on the dyno, the track, or the street—stock pistons will eventually let you down. The Wiseco K2792 kit gives you forged pistons with ArmorGlide™ skirts and ArmorPlating ring grooves, engineered to handle...09101999- SKU:
- 09101999
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- BORE - OVERSIZE:
- 0,125'
- BORE OVERSIZE - IMPERIAL:
- 0.125'
- PISTON MATERIAL:
- ALUMINUM
- UNITS:
- KIT
- BORE SIZE IMPERIAL:
- 3.875'
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- DISPLACEMENT:
- 124'
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- MODEL:
- VM SERIES
- PISTON HEAD SHAPE:
- POSITIVE
- SKIRT COATING:
- ARMORFIT™
- STROKE LENGTH IMPERIAL:
- 4-3/8'
$576.95 -
Wiseco Piston Kit 1984-1999 Harley-Davidson Big Twin 1340cc K1675
WISECO
$447.95A top-end rebuild demands precision components that can handle the stress of high-compression combustion cycle after cycle. Wiseco's high-silicon aluminum alloy pistons are engineered to resist thermal fatigue and maintain tight tolerances, keeping your...K1675- SKU:
- K1675
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- BORE - OVERSIZE:
- +0,005'
- BORE SIZE IMPERIAL:
- 3.503'
- STROKE LENGTH IMPERIAL:
- 4-1/4'
- TYPE:
- TOP END
- UNITS:
- EACH
- PISTON MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- BORE OVERSIZE - IMPERIAL:
- +0.005'
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- DISPLACEMENT:
- 1342 CC
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- REBUILD KIT
$447.95 -
REVOLUTION PERFORMANCE, LLC Piston Kit RP301-104W
REVOLUTION PERFORMANCE, LLC
$495.95When you're pushing your engine to the limit, stock pistons become your weakest link. The Revolution Performance RP301-104W piston kit delivers the strength and thermal stability required for sustained high-RPM operation, engineered with custom-forged...09106370- SKU:
- 09106370
- Availability:
- Ships Same Business Day
- Weight:
- 3.30 LBS
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 4'
- PISTON HEAD SHAPE:
- DOMED
- UNITS:
- KIT
- BORE SIZE IMPERIAL:
- 3.937'
- DISPLACEMENT:
- 98'
- COMPRESSION RATIO IMPERIAL:
- 10.3:1
$495.95 -
REVOLUTION PERFORMANCE, LLC Piston Kit RP301-105W
REVOLUTION PERFORMANCE, LLC
$495.95High-performance pistons demand precision engineering and material science to withstand extreme combustion pressures and thermal cycling. The REVOLUTION PERFORMANCE RP301-105W piston kit delivers custom-forged construction with a skirt coating and offset...09106371- SKU:
- 09106371
- Availability:
- Ships Same Business Day
- Weight:
- 3.15 LBS
- BORE SIZE IMPERIAL:
- 3.937'
- RIDING STYLE:
- STREET
- COMPRESSION RATIO IMPERIAL:
- 9.3:1
- PISTON HEAD SHAPE:
- FLAT TOP
- STROKE LENGTH IMPERIAL:
- 4'
- PRODUCT NAME:
- PISTON KIT
- DISPLACEMENT:
- 98'
- UNITS:
- KIT
$495.95 -
EMGO Crankcase Filter Kit 14-20910
EMGO
$10.60High-quality crankcase breathers and filters from Emgo1420910- SKU:
- 1420910
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- FEATURES:
- RUBBER-TOP
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
- UNITS:
- EACH
- PRODUCT NAME:
- VENT FILTER
$10.60 -
EMGO Replacement Filter - Chrome 14-20905
EMGO
$11.94For use only with crankcase vent filter1420905- SKU:
- 1420905
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- BASE FINISH:
- CHROME
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- FILTER
- UNITS:
- EACH
$11.94 -
EMGO Crankcase Filter Kit 14-20900
EMGO
$22.40High-quality crankcase breathers and filters from Emgo1420900- SKU:
- 1420900
- Availability:
- Ships Same Business Day
- Weight:
- 0.52 LBS
- FEATURES:
- WITH CHROME BASE
- PRODUCT NAME:
- VENT FILTER
- RIDING STYLE:
- STREET
- TYPE:
- CRANKCASE
- UNITS:
- EACH
$22.40 -
EMGO Oil Filter - Chrome 10-82442
EMGO
$16.50A quality oil filter is fundamental to engine longevity—it removes contaminants that would otherwise accelerate wear on critical internal components. The EMGO Chrome 10-82442 uses premium materials and robust construction to ensure consistent filtration...1082440- SKU:
- 1082440
- Availability:
- Ships Same Business Day
- Weight:
- 0.68 LBS
- COLOR/FINISH:
- CHROME
- FILTER MEDIA MATERIAL:
- SYNTHETIC
- RIDING STYLE:
- STREET
- TYPE:
- SPIN-ON
- BASE COLOR:
- SILVER
- PRODUCT NAME:
- OIL FILTER
- UNITS:
- EACH
$16.50 -
EMGO Oil Filter - Chrome 10-82400
EMGO
$12.04A quality oil filter is foundational to engine longevity—it removes contaminants that accelerate wear on critical internal components. The EMGO Chrome 10-82400 uses premium paper, metal, and rubber construction bonded with high-strength epoxy to deliver...1082400- SKU:
- 1082400
- Availability:
- Ships Same Business Day
- Weight:
- 0.63 LBS
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- STREET
- TYPE:
- SPIN-ON
- COLOR/FINISH:
- CHROME
- BASE COLOR:
- SILVER
- FILTER MEDIA MATERIAL:
- PAPER
- UNITS:
- EACH
$12.04 -
EMGO Drop-In Oil Filter with Seals 10-28300
EMGO
$7.23An oil filter is one of the most cost-effective maintenance items you can invest in—and it directly impacts engine longevity and performance. The EMGO Drop-In Oil Filter (10-28300) uses premium-grade materials and robust epoxy bonding to deliver...1028300- SKU:
- 1028300
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- COLOR/FINISH:
- SILVER
- PRODUCT NAME:
- OIL FILTER
- BASE COLOR:
- SILVER
- FILTER MEDIA MATERIAL:
- PAPER
- UNITS:
- EACH
- TYPE:
- DROP-IN
- RIDING STYLE:
- STREET
$7.23 -
EMGO Oil Filter - Chrome 10-07800
EMGO
$12.04An engine's lifespan depends entirely on oil quality, and that starts with filtration. The EMGO Oil Filter 10-07800 uses multi-layer paper media and reinforced epoxy-bonded construction to trap contaminants while maintaining optimal flow rates, keeping...1007800- SKU:
- 1007800
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- BASE COLOR:
- SILVER
- PRODUCT NAME:
- OIL FILTER
- UNITS:
- EACH
- FILTER MEDIA MATERIAL:
- PAPER
- RIDING STYLE:
- STREET
- TYPE:
- SPIN-ON
- COLOR/FINISH:
- CHROME
$12.04 -
EMGO Oil Filter - Black 10-07700
EMGO
$8.31A quality oil filter is fundamental to engine longevity—it directly impacts how well your engine stays protected from contaminants that accelerate wear. The EMGO 10-07700 uses premium filtration media and robust construction to maintain consistent oil...1007700- SKU:
- 1007700
- Availability:
- Ships Same Business Day
- Weight:
- 0.56 LBS
- BASE COLOR:
- BLACK
- FILTER MEDIA MATERIAL:
- PAPER
- COLOR/FINISH:
- BLACK
- UNITS:
- EACH
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- STREET
- TYPE:
- SPIN-ON
$8.31 -
EMGO Oil filter 10-28310
EMGO
$6.53An engine is only as clean as its oil filter. The EMGO 10-28310 uses premium filtration media and robust construction to keep contaminants out of your oil system, directly extending engine life and maintaining peak performance. Whether you're running...07120409- SKU:
- 07120409
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- COLOR/FINISH:
- SILVER
- FILTER MEDIA MATERIAL:
- PAPER
- PRODUCT NAME:
- OIL FILTER
- TYPE:
- DROP-IN
- COLOR/FINISH:
- ORANGE
- UNITS:
- EACH
- BASE COLOR:
- SILVER
- RIDING STYLE:
- STREET
$6.53
