Harley Piston and Ring Kits
Harley Bike Piston & Ring Kits at JJ Motorsports
Rebuild your Harley's top end with premium piston and ring kits from JJ Motorsports, featuring forged aluminum pistons with high-performance rings for increased compression and durability on Big Twin, Evo, Twin Cam, and Sportster engines. These kits deliver reliable power and long-lasting performance.
Shop KB Performance, Wiseco, and Revolution Performance piston kits for race-proven quality. Explore related categories such as Harley engine for gaskets and rebuilds, or Harley for cams and heads to complete your top-end refresh.
Top Harley Piston & Ring Kits
- KB Performance Super Duty Piston KB660LCA-STD – Forged super-duty piston with rings for 660cc; ideal for high-compression Evo builds.
- Wiseco Piston Kit with Gasket VM Ring VT2719 – Complete Wiseco kit for Twin Cam; includes rings and gaskets for reliable top-end power.
- Revolution Performance LLC Piston Kit RP301-601W – 601cc piston kit with wrist pin; forged for Sportster performance upgrades.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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KB PERFORMANCE Forged Piston Kit - Twin Cam KB660C.005
KB PERFORMANCE
$307.29Pistons forged from 4032 aluminum alloy, Offset pin design for quiet operation, Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings, Piston pin lock rings available separately, Replacement rings are also available separately09103971- SKU:
- 09103971
- Availability:
- Ships Same Business Day
- Weight:
- 2.65 LBS
- BORE OVERSIZE - IMPERIAL:
- +0.005'
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- RIDING STYLE:
- STREET
- BORE SIZE IMPERIAL:
- 3.875'
- BORE - OVERSIZE:
- +0,005'
- PISTON MATERIAL:
- 4032 ALUMINUM ALLOY
- UNITS:
- KIT
$307.29 -
KB PERFORMANCE Super-Duty Piston KB660LCA.STD
KB PERFORMANCE
$390.86New skirt coating technology is applied to the entire thickness of the piston-to-wall clearance for a zero install clearance; coating then abrades in on start-up to hone for the perfect fit per cylinder, Skirt coating eliminates piston rock for the best...09105045- SKU:
- 09105045
- Availability:
- Ships Same Business Day
- Weight:
- 2.65 LBS
- UNITS:
- KIT
- BORE SIZE METRIC:
- 98.40 MM
- DISPLACEMENT:
- 103'
- PISTON MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- PRODUCT NAME:
- PISTON KIT
- STROKE LENGTH IMPERIAL:
- 4-3/8'
$390.86 -
KB PERFORMANCE Super-Duty Piston KB662LCA.010
KB PERFORMANCE
$390.86New skirt coating technology is applied to the entire thickness of the piston-to-wall clearance for a zero install clearance; coating then abrades in on start-up to hone for the perfect fit per cylinder, Skirt coating eliminates piston rock for the best...09105050- SKU:
- 09105050
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- BORE SIZE METRIC:
- 104.80 MM
- DISPLACEMENT:
- 117'
- PISTON MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- UNITS:
- KIT
- PRODUCT NAME:
- PISTON KIT
- STROKE LENGTH IMPERIAL:
- 4-3/8'
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
$390.86 -
Wiseco Piston Kit 1984-1998 Harley-Davidson FLHR Road King K1666
WISECO
$409.95Engineered for performance and durability, the WISECO Big Twin K1666 Piston Kit is crafted from high-silicon aluminum alloy, ensuring long-lasting strength for your engine rebuild. This comprehensive kit includes everything you need for an overbore or...K1666- SKU:
- K1666
- Availability:
- Ships Same Business Day
- Weight:
- 2.63 LBS
- DISPLACEMENT:
- 1345 CC
- RIDING STYLE:
- STREET
- BORE - OVERSIZE:
- +0,010'
- BORE OVERSIZE - IMPERIAL:
- +0.010'
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- PISTON MATERIAL:
- ALUMINUM
- PISTON MATERIAL:
- FORGED
- PRODUCT NAME:
- REBUILD KIT
- STROKE LENGTH IMPERIAL:
- 4-1/4'
- TYPE:
- TOP END
- BORE SIZE IMPERIAL:
- 3.508'
- UNITS:
- EACH
$409.95 -
Wiseco Piston Kit 1998 Harley-Davidson FLHRI Road King K1667
WISECO
$409.95Engineered for peak performance, the WISECO Big Twin Piston Kit K1667 is crafted from high-silicon aluminum alloy, ensuring exceptional strength and reliability. This comprehensive kit comes with everything needed for a successful top-end rebuild or...K1667- SKU:
- K1667
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- STREET
- BORE - OVERSIZE:
- +0,020'
- DISPLACEMENT:
- 1353 CC
- STROKE LENGTH IMPERIAL:
- 4-1/4'
- BORE OVERSIZE - IMPERIAL:
- +0.020'
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- PISTON MATERIAL:
- ALUMINUM
- PISTON MATERIAL:
- FORGED
- BORE SIZE IMPERIAL:
- 3.518'
- TYPE:
- TOP END
- UNITS:
- EACH
$409.95 -
Wiseco 1988-2003 Harley-Davidson XLH1200 Sportster 1200 Piston Kit K1687
WISECO
$409.95Upgrade your engine's performance with the WISECO Piston Kit 1200 XL K1687, designed for durability and precision. Crafted from high-silicon aluminum alloy, this kit ensures maximum strength for your top-end rebuild or overbore project. It includes all...K1687- SKU:
- K1687
- Availability:
- Ships Same Business Day
- Weight:
- 2.38 LBS
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- PISTON MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 3-13/16'
- BORE OVERSIZE - IMPERIAL:
- +0.020'
- DISPLACEMENT:
- 1200 CC
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE:
- +0,020'
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- BORE SIZE IMPERIAL:
- 3.498'
- UNITS:
- EACH
$409.95 -
Wiseco Piston Kit with Gasket for 2006 Harley-Davidson FLST Heritage Softail VT2719
WISECO
$659.95Upgrade your engine's performance with the WISECO Piston Kit, designed for durability and precision. Crafted from high-silicon aluminum alloy, this kit ensures maximum strength and reliability for your rebuild or overbore project. Each kit includes all...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
$659.95 -
Wiseco Piston Kit 2022-2023 Harley-Davidson Street Glide ST FLHXST K2801
WISECO
$524.95Experience unparalleled performance with the WISECO Piston Kit M8 K2801, designed for enthusiasts seeking maximum power and efficiency. This advanced piston kit features innovative coatings and designs that ensure optimal operation in extreme conditions...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 for Harley M8 128ci 2017-2022 K2802
WISECO
$524.95Experience unparalleled performance and durability with the WISECO Piston Kit M8 K2802. Engineered for extreme conditions, this kit enhances your engine's efficiency and power output, ensuring a smooth and reliable ride. With innovative coatings and...09031676- SKU:
- 09031676
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- BORE SIZE IMPERIAL:
- 4.250'
- RIDING STYLE:
- STREET
- DISPLACEMENT:
- 128'
- PISTON HEAD SHAPE:
- DOMED
- UNITS:
- KIT
- PISTON MATERIAL:
- ARMORX™
- PRODUCT NAME:
- PISTON KIT
- SKIRT COATING:
- ARMORFIT™
$524.95 -
Wiseco Piston Kit 114in 2020-2023 Harley-Davidson FLHXS K2803
WISECO
$524.95Upgrade your engine's performance with the WISECO Piston Kit M8 K2803, designed for those who demand reliability and power. Featuring advanced coatings and a high compression ratio, this piston kit ensures optimal air-fuel efficiency and enhances overall...09031677- SKU:
- 09031677
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- SKIRT COATING:
- ARMORFIT™
- STROKE LENGTH IMPERIAL:
- 4-1/2'
- BORE SIZE IMPERIAL:
- 4.016'
- DISPLACEMENT:
- 114'
- PISTON MATERIAL:
- ARMORX™
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- UNITS:
- KIT
$524.95 -
Wiseco Piston Kit 117in 4.075in Bore 11.1:1 Compression Harley-Davidson FLFBS 2018-2023 K2804
WISECO
$524.95Enhance your engine's performance with the WISECO M8 117" Piston Kit, designed for optimal efficiency and power. Featuring advanced coatings and a precision fit, this kit ensures a smooth operation and improved combustion for your motorcycle. ...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
$524.95 -
Wiseco Piston Kit 124in 11:1 Compression for Harley-Davidson Touring Models K2787
WISECO
$524.95Experience unparalleled performance with the WISECO Piston Kit M8 K2787, designed for enthusiasts seeking enhanced power and efficiency. This kit features advanced coatings and precision engineering to ensure optimal operation under extreme conditions,...09031554- SKU:
- 09031554
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- PISTON MATERIAL:
- ARMORX™
- UNITS:
- KIT
- PISTON HEAD SHAPE:
- DISHED
- BORE - OVERSIZE:
- +0,313'
- BORE SIZE IMPERIAL:
- 4.250'
- DISPLACEMENT:
- 2035 CC
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- SKIRT COATING:
- ARMORFIT™
- BORE OVERSIZE - IMPERIAL:
- +0.313'
- STROKE LENGTH IMPERIAL:
- 4-3/8'
$524.95 -
Wiseco Piston Kit for Harley-Davidson 1999-2006 Road King FLHR 4.000" Stroke 9.5:1 Compression K0207PS
WISECO
$294.95Experience unparalleled performance with the WISECO Piston Kit K0207PS, designed for enthusiasts seeking optimal power and efficiency. This kit features a precision-engineered forged piston crown that accommodates larger valves and cam profiles, ensuring...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
$294.95 -
Wiseco Piston Kit 3.875 in. Bore 9:1 CR for Harley-Davidson Twin Cam 103 2010-2017 K2788
WISECO
$524.95Experience unparalleled performance with the WISECO Piston Kit K2788, engineered for superior strength and reduced thermal expansion. This kit features high-quality forged pistons designed to enhance your engine's efficiency and longevity. Forged...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
$524.95 -
Wiseco Piston Kit 3.875 in. Bore 10.5:1 Compression Ratio Harley-Davidson Twin Cam 103 2011-2016 K2792
WISECO
$524.95Experience enhanced performance and durability with the WISECO Piston Kit K2792. Engineered with advanced manufacturing techniques, these pistons provide exceptional strength and reduced thermal expansion, making them ideal for high-performance...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'
$524.95 -
Wiseco Piston Kit 103 Cubic Inch 2007-2017 K2793
WISECO
$524.95Experience unparalleled performance with the WISECO Piston Kit K2793, designed for high efficiency and durability. This kit features advanced manufacturing techniques that enhance strength and minimize thermal expansion, ensuring optimal engine...09102001- SKU:
- 09102001
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- BORE - OVERSIZE:
- 0,125'
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- PISTON MATERIAL:
- ALUMINUM
- BORE OVERSIZE - IMPERIAL:
- 0.125'
- MODEL:
- VM SERIES
- DISPLACEMENT:
- 103'
- PISTON HEAD SHAPE:
- POSITIVE
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- SKIRT COATING:
- ARMORFIT™
- STROKE LENGTH IMPERIAL:
- 4-3/8'
- BORE SIZE IMPERIAL:
- 3.875'
- UNITS:
- KIT
$524.95 -
Wiseco Piston Kit 1984-1999 Harley-Davidson Big Twin 1340cc K1675
WISECO
$409.95Upgrade your engine's performance with the WISECO Piston Kit Big Twin K1675, crafted from a high-silicon aluminum alloy for exceptional strength and reliability. This comprehensive kit includes everything you need for a successful overbore or top-end...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
$409.95 -
REVOLUTION PERFORMANCE, LLC Piston Kit RP301-104W
REVOLUTION PERFORMANCE, LLC
$495.95Top-quality custom-forged piston kits manufactured with high-strength aluminum alloy, Include pistons with skirt coating, rings, chrome piston pins and retainer clips, High-tech manufacturing ensures greater operating strength and lower expansion at high...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
$495.95Top-quality custom-forged piston kits manufactured with high-strength aluminum alloy, Include pistons with skirt coating, rings, chrome piston pins and retainer clips, High-tech manufacturing ensures greater operating strength and lower expansion at high...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 -
Wiseco Piston Kit 95ci 9.5:1 Compression for Harley-Davidson FLHRCI Road King Classic 1999-2006 K0207P1
WISECO
$294.95Experience superior performance with the WISECO Piston Kit K0207P1, designed for high-performance engines. This kit features a precision-engineered forged piston crown that accommodates larger valves and aggressive cam profiles, ensuring optimal power...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
$294.95
