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!
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- Price
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On Sale
Wiseco Piston Kit Standard 1972-1985 XLH1000 K1600
WISECO
MSRP: $344.95Now: $293.00Was: $344.95Whether you're executing a top-end rebuild or pushing your XLH1000 into overbore territory, a quality piston kit is non-negotiable for reliability and performance. The Wiseco K1600 delivers the...K1600- SKU:
- K1600
- Availability:
- Ships Same Business Day
- Weight:
- 2.75 LBS
- BORE SIZE IMPERIAL:
- 3.188'
- STROKE LENGTH IMPERIAL:
- 3-13/16'
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- STREET
- TYPE:
- TOP END
- UNITS:
- EACH
- DISPLACEMENT:
- 1000 CC
- PISTON MATERIAL:
- FORGED
- BORE - OVERSIZE:
- STANDARD
- BORE OVERSIZE - IMPERIAL:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
MSRP: $344.95Now: $293.00Was: $344.95Qty in Cart: 0Quantity:Price:MSRP: $344.95Now: $293.00Was: $344.95Subtotal: -
On Sale
Wiseco Piston Kit 1972-1985 XLH1000 K1601
WISECO
MSRP: $344.95Now: $293.00Was: $344.95A top-end rebuild demands precision components that can handle sustained power delivery without compromise. The Wiseco Piston Kit delivers exactly that—a complete, engineered solution for 1972-1985...K1601- SKU:
- K1601
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- BORE OVERSIZE - IMPERIAL:
- +0.010'
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 3-13/16'
- BORE - OVERSIZE:
- +0,010'
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- DISPLACEMENT:
- 1003 CC
- PISTON MATERIAL:
- FORGED
- BORE SIZE IMPERIAL:
- 3.198'
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- TOP END
- UNITS:
- EACH
- PISTON MATERIAL:
- ALUMINUM ALLOY
MSRP: $344.95Now: $293.00Was: $344.95Qty in Cart: 0Quantity:Price:MSRP: $344.95Now: $293.00Was: $344.95Subtotal: -
On Sale
Wiseco Piston Kit 1972-1985 XLH1000 10:1 Compression K1603
WISECO
MSRP: $344.95Now: $293.00Was: $344.95A top-end rebuild demands precision components that can handle sustained RPMs and cylinder pressures without compromise. The Wiseco Piston Kit K1603 delivers the complete solution for your 1972-1985...K1603- SKU:
- K1603
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- BORE - OVERSIZE:
- +0,030'
- BORE SIZE IMPERIAL:
- 3.218'
- DISPLACEMENT:
- 1016 CC
- PISTON MATERIAL:
- ALUMINUM ALLOY
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- STREET
- STROKE LENGTH IMPERIAL:
- 3-13/16'
- TYPE:
- TOP END
- UNITS:
- EACH
- BORE OVERSIZE - IMPERIAL:
- +0.030'
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- PISTON MATERIAL:
- FORGED
MSRP: $344.95Now: $293.00Was: $344.95Qty in Cart: 0Quantity:Price:MSRP: $344.95Now: $293.00Was: $344.95Subtotal: -
On Sale
S&S CYCLE High Compression Piston Kit 920-0115
S&S CYCLE
MSRP: $521.95Now: $480.19Was: $521.95If you're serious about extracting every bit of performance from your engine without sacrificing low-end torque, a high-compression piston kit is one of the most direct upgrades available. The S&S...09103980- SKU:
- 09103980
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- TYPE:
- HIGH COMPRESSION
- BORE - OVERSIZE:
- +0,010'
- COMPRESSION RATIO IMPERIAL:
- 10.6:1
- DISPLACEMENT:
- 110'
- UNITS:
- KIT
- BORE OVERSIZE - IMPERIAL:
- +0.010'
- BORE SIZE IMPERIAL:
- 4.010'
- PISTON HEAD SHAPE:
- RAISED DOME
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
MSRP: $521.95Now: $480.19Was: $521.95Qty in Cart: 0Quantity:Price:MSRP: $521.95Now: $480.19Was: $521.95Subtotal:
Buying Guide and FAQs
Buying Guide: Factors to Consider When Choosing Harley Bike Piston and Ring Kits
- Compatibility: Match kits to your Harley's engine type (e.g., Big Twin, Twin Cam, Sportster, M8) and model (e.g., FLHR Road King 1984-1998, XLH1200 Sportster 1988-2003, FLST Heritage Softail 2006). Use the vehicle selector for year-specific fits, including bore oversizes (+0.005" to +0.188") and displacements (1200cc-1353cc) to ensure precise rebuilds without modifications.
- Type of Use: For high-performance or street builds, select forged kits with high compression (10.0:1-11.1:1) for power gains; standard rebuilds benefit from super-duty options with skirt coatings for quiet operation and durability in touring or daily riding.
- Components and Upgrades: Choose kits including pistons, rings, pins, clips, and sometimes gaskets; upgrade to ArmorGlide/ArmorFit coatings for reduced friction and zero clearance install. Focus on high-silicon aluminum alloys for strength and reliability.
- Brand and Quality: Opt for Wiseco for forged aluminum kits with advanced coatings and high compression, or KB Performance for super-duty pistons with skirt technology. Prioritize OEM-matching quality for long-lasting performance and precise fits.
- Installation and Cost: Kits are designed for DIY or professional top-end rebuilds with basic tools; prices range from $307 for standard kits to $659 for premium options with gaskets—factor in expert support and free shipping over $99 for value.
Frequently Asked Questions (FAQs)
- What Harley models and engines do these piston and ring kits support? Kits are compatible with Big Twin (e.g., Road King 1984-1998), Sportster (e.g., XLH1200 1988-2003), Twin Cam (e.g., Heritage Softail 2006), and M8 (e.g., Street Glide ST 2022-2023)—use the year/make/model filter for exact matches.
- How do forged pistons improve engine performance? Forged aluminum pistons (e.g., Wiseco) with high-silicon alloys and coatings reduce friction, enhance strength, and support higher compression for better power and efficiency in rebuilds.
- What is typically included in a kit? Most kits include pistons, rings, pins, spiral-lock clips, and sometimes gaskets (e.g., Wiseco VT2719); check details for oversize options and top-end components.
- Are these kits suitable for oversize bores? Yes, available in standard to +0.188" oversizes for bored engines, with compression ratios from 9.0:1 to 11.1:1 for custom builds.
- What if a kit doesn't fit my Harley? Verify bore size, displacement, and model before buying. Our returns policy allows exchanges or refunds if it doesn't match.
- Can I find related engine parts? Yes—explore gaskets, cylinders/heads, bearings/seals, or full rebuild kits in the Harley engine category to complete your top-end refresh.
