Dirt Bike Cylinders and Parts
Dirt Bike Cylinders & Cylinder Kits for Yamaha, Kawasaki, KTM & Husqvarna at JJ Motorsports
Rebore or replace your dirt bike's cylinder with premium OEM-spec and big-bore cylinders from JJ Motorsports, precision-machined for perfect piston fit, maximum heat dissipation, and race-proven durability in motocross, enduro, and trail riding. Our selection includes standard bore replacements and performance cylinders from Cylinder Works, Moose Racing, and Wossner, complete with plating options for long life and easy installation. Compatible with top models like Yamaha YZ/WR250F, Kawasaki KX250F, KTM 85 SX, Husqvarna TC85, and Gas Gas MC85, these high-quality cylinders restore compression, increase displacement when paired with big-bore kits, and deliver reliable performance in dusty, high-heat conditions. Whether refreshing a scored cylinder or building a big-bore stroker, these components provide exact OEM tolerances or upgraded plating for superior wear resistance and championship-level power on every ride.
At JJ Motorsports, we stock the best dirt bike cylinders and kits from Cylinder Works, Moose Racing, and Wossner with fast shipping and expert support. Free shipping over $99!
Top Dirt Bike Cylinders & Kits
- Cylinder Works Standard Bore Cylinder 66.40mm Yamaha YZ250F/WR250F 20009 – OEM-spec replacement cylinder for Yamaha YZ250F and WR250F; ready for stock or big-bore piston, nickel-silicon carbide plating for ultimate wear resistance.
- Moose Racing Standard Cylinder Kawasaki KX250F MSE30012 – Direct OEM replacement cylinder for Kawasaki KX250F 2004-2016; precision-machined with plating for perfect fit and long life.
- Wossner Cylinder 47.00mm KTM/Husqvarna/Gas Gas 85 WBC8147A – High-performance cylinder for KTM 85 SX, Husqvarna TC85, and Gas Gas MC85; forged construction with advanced plating for 85cc 2-stroke power and durability.
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
-
LA Sleeve Suzuki RM85 2002-2021 Sleeve and Piston Kit LAS-5479K
LA SLEEVE
$312.95LA SLEEVE Sleeve and Piston Kit Suzuki LAS-5479K Enhance your Suzuki's performance with the LA SLEEVE Sleeve and Piston Kit. This all-in-one top-end rebuild kit is engineered for superior efficiency and power, featuring advanced materials that ensure...09310417- SKU:
- 09310417
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- MATERIAL:
- CAST
- PRODUCT NAME:
- REBUILD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MATERIAL:
- IRON
- TYPE:
- CYLINDER
$312.95 -
LA SLEEVE Cylinder Sleeve Yamaha XT225 2001-2007 YA5631
LA SLEEVE
$102.95LA SLEEVE Cylinder Sleeve YA5631 Revitalize your engine with the LA SLEEVE Cylinder Sleeve YA5631, designed for exceptional performance and durability. This high-quality replacement sleeve ensures a perfect fit, restoring your cylinder's functionality...09310572- SKU:
- 09310572
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- BORE SIZE METRIC:
- 70.00 MM
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
$102.95 -
L.A. Sleeve Cylinder Sleeve for Honda Pioneer 700 2016-2024 H5621
LA SLEEVE
$130.95LA SLEEVE Cylinder Sleeve H5621 Revitalize your engine's performance with the LA SLEEVE Cylinder Sleeve H5621. Designed for durability and precision, this high-quality replacement sleeve ensures a perfect fit and enhances the longevity of your cylinders...09310642- SKU:
- 09310642
- Availability:
- Ships Same Business Day
- Weight:
- 1.70 LBS
- BORE SIZE METRIC:
- 102.00 MM
- COLOR/FINISH:
- ALUMINUM
- RIDING STYLE:
- UTV
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- CI
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
$130.95 -
LA SLEEVE Cylinder Sleeve for Harley-Davidson 1984-1998 Models FL5374
LA SLEEVE
$165.95LA SLEEVE Cylinder Sleeve FL5374 Revitalize your engine with the LA SLEEVE Cylinder Sleeve FL5374, designed to restore performance and extend the life of worn cylinders. Crafted with precision and durability in mind, this replacement sleeve ensures a...09310644- SKU:
- 09310644
- Availability:
- Ships Same Business Day
- Weight:
- 2.40 LBS
- BORE SIZE METRIC:
- 104.00 MM
- ENGINE TYPE:
- 4-STROKE
- MATERIAL:
- CHROME-MOLY ALLOY
- UNITS:
- EACH
- COLOR/FINISH:
- ALUMINUM
- DISPLACEMENT:
- 722 CC
- RIDING STYLE:
- STREET
- TYPE:
- AC
- PRODUCT NAME:
- CYLINDER SLEEVE
$165.95 -
LA Sleeve Cylinder Sleeve for Yamaha Grizzly 450 2007-2014 Kodiak 450 2003-2024 Rhino 450 2006-2010 Wolverine 450 2006-2022 YA5513
LA SLEEVE
$119.95LA SLEEVE Cylinder Sleeve YA5513 Revitalize your engine with the LA SLEEVE Cylinder Sleeve YA5513, designed for optimal performance and durability. This high-quality replacement sleeve is engineered to restore old cylinders, ensuring reliable operation...09310645- SKU:
- 09310645
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- BORE SIZE METRIC:
- 84.50 MM
- RIDING STYLE:
- UTV
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- RS
- COLOR/FINISH:
- ALUMINUM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$119.95 -
LA Sleeve Cylinder Sleeve 47mm KTM 85 SX 2003-2017 FL5551
LA SLEEVE
$134.95LA SLEEVE Cylinder Sleeve FL5551 Revitalize your engine with the LA SLEEVE Cylinder Sleeve FL5551, designed for optimal performance and durability. These high-quality replacement sleeves ensure a perfect fit, extending the life of your engine while...09310516- SKU:
- 09310516
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- BORE SIZE METRIC:
- 100.00 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- CYLINDER SLEEVE
$134.95 -
LA Sleeve Sleeve and Piston Kit Kawasaki KX250F 2009-2016 LAS-5611K-1
LA SLEEVE
$375.95LA SLEEVE Sleeve and Piston Kit Kawasaki LAS-5611K-1 Elevate your Kawasaki's performance with the LA SLEEVE Sleeve and Piston Kit, designed for optimal power and efficiency. This comprehensive top-end rebuild kit features advanced materials and...09310519- SKU:
- 09310519
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- MATERIAL:
- IRON
- PRODUCT NAME:
- REBUILD KIT
- TYPE:
- CYLINDER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$375.95Qty in Cart: 0Quantity:Price:$375.95Subtotal: -
LA Sleeve 2003-2014 KTM 200 EXC Sleeve and Piston Kit LAS-5554K
LA SLEEVE
$422.95LA SLEEVE Sleeve and Piston Kit KTM LAS-5554K Revitalize your KTM with the LA SLEEVE Sleeve and Piston Kit, designed for optimal performance and durability. This all-in-one top-end rebuild kit ensures enhanced compression, increased torque, and a boost...09310520- SKU:
- 09310520
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- MATERIAL:
- CAST
- MATERIAL:
- IRON
- TYPE:
- CYLINDER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
$422.95 -
LA Sleeve Cylinder Sleeve for Honda XR400R 1996-2004 H5293
LA SLEEVE
$128.95LA SLEEVE Cylinder Sleeve H5293 Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5293, designed to restore performance and extend the lifespan of your cylinders. Crafted from high-quality materials, these sleeves provide a reliable solution for...H5293- SKU:
- H5293
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- COLOR/FINISH:
- ALUMINUM
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- RS
- BORE SIZE METRIC:
- 85.00 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
$128.95Qty in Cart: 0Quantity:Price:$128.95Subtotal: -
LA Sleeve Cylinder Sleeve 72mm Bore Polaris Trail Blazer 250 1990-2006 FL5168
LA SLEEVE
$171.95LA SLEEVE Cylinder Sleeve FL5168 Revitalize your engine with the LA SLEEVE Cylinder Sleeve FL5168, designed to restore performance and extend the lifespan of your old cylinders. Crafted with precision, these high-quality replacement sleeves ensure a...FL5168- SKU:
- FL5168
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- COLOR/FINISH:
- ALUMINUM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- CI
- BORE SIZE METRIC:
- 72.00 MM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$171.95Qty in Cart: 0Quantity:Price:$171.95Subtotal: -
LA Sleeve Cylinder Sleeve 90mm Bore Honda TRX450FE 1998-2004 H5365
LA SLEEVE
$128.95LA SLEEVE Cylinder Sleeve H5365 Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5365, designed to restore the performance of worn-out cylinders. Crafted with precision and durability in mind, this replacement sleeve ensures a perfect fit and...H5365- SKU:
- H5365
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- BORE SIZE METRIC:
- 90.00 MM
- TYPE:
- RS
- COLOR/FINISH:
- ALUMINUM
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
$128.95 -
LA Sleeve Sleeve and Piston Kit Honda TRX450ES 1998-2004 LAS-5365K
LA SLEEVE
$328.95LA SLEEVE Sleeve and Piston Kit for Honda LAS-5365K Elevate your Honda's performance with the LA SLEEVE Sleeve and Piston Kit. This all-in-one top-end rebuild kit is engineered to enhance ring seal, resulting in improved compression, torque, and...09310359- SKU:
- 09310359
- Availability:
- Ships Same Business Day
- Weight:
- 4.20 LBS
- TYPE:
- CYLINDER
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- MATERIAL:
- IRON
- RIDING STYLE:
- ATV
$328.95 -
LA Sleeve Cylinder Sleeve Honda TRX500FE 2005-2009 H5591
LA SLEEVE
$128.95LA SLEEVE Cylinder Sleeve H5591 Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5591, designed to restore performance and extend the life of your cylinders. Crafted with precision and durability in mind, this replacement sleeve ensures a...09310711- SKU:
- 09310711
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- BORE SIZE METRIC:
- 92.00 MM
- COLOR/FINISH:
- ALUMINUM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- RS
$128.95 -
LA Sleeve Cylinder Sleeve for Polaris General 1000 2016-2017 FL5777
LA SLEEVE
$128.95LA SLEEVE Cylinder Sleeve for Polaris 1000 FL5777 Revitalize your Polaris 1000 engine with the LA SLEEVE Cylinder Sleeve, designed to restore performance and extend the life of your cylinders. Crafted from high-quality materials, this replacement sleeve...09311008- SKU:
- 09311008
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- PRODUCT NAME:
- SLEEVE
- UNITS:
- EACH
- RIDING STYLE:
- UTV
$128.95 -
LA Sleeve Cylinder Sleeve for KTM 85 SX 2018-2022 FL5796
LA SLEEVE
$134.95LA SLEEVE Cylinder Sleeve KTM/Husqvarna 85 FL5796 Revitalize your KTM or Husqvarna 85 with the LA SLEEVE Cylinder Sleeve, designed to restore performance and extend the life of your engine. Crafted with precision, this high-quality replacement sleeve...09311010- SKU:
- 09311010
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$134.95 -
LA Sleeve Cylinder Sleeve Yamaha YZ250 1996 YA5296
LA SLEEVE
$171.95High-Performance Replacement Cylinder Sleeves - YA5296 Revitalize your engine with our top-tier replacement cylinder sleeves, engineered to restore performance and enhance durability. Crafted from premium materials, these sleeves provide a seamless fit...YA5296- SKU:
- YA5296
- Availability:
- Ships Same Business Day
- Weight:
- 1.12 LBS
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- BORE SIZE METRIC:
- 68.00 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- AC
$171.95Qty in Cart: 0Quantity:Price:$171.95Subtotal: -
LA Sleeve Big Bore Cylinder Sleeve for Honda TRX400EX 1999-2008 H5445
LA SLEEVE
$134.95LA SLEEVE Cylinder Sleeve H5445 Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5445, designed for superior performance and durability. This high-quality replacement sleeve rejuvenates old cylinders, ensuring optimal fit and functionality...09310054- SKU:
- 09310054
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- BORE SIZE METRIC:
- 88.00 MM
- COLOR/FINISH:
- ALUMINUM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- BIG BORE
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
$134.95Qty in Cart: 0Quantity:Price:$134.95Subtotal: -
Cylinder Works YZ250 1999-2024 Big Bore Power Valve Kit CW-PV-K02
CYLINDER WORKS
$365.95Unlock the full potential of your engine with the CYLINDER WORKS Power Valve Big Bore CW-PV-K02. Designed for superior performance, this high-quality component enhances throttle response and power delivery, ensuring a smoother ride. Crafted with...09350953- SKU:
- 09350953
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- STEEL
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- POWER VALVE
- BORE SIZE METRIC:
- 72.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$365.95 -
Cylinder Works Power Valve Kit Standard Bore Yamaha YZ250 1999-2021 CW-PV-K01
CYLINDER WORKS
$233.95Unlock the full potential of your engine with the CYLINDER WORKS Power Valve Standard Bore CW-PV-K01. Designed for optimal performance and precision, this power valve enhances throttle response and overall efficiency. Crafted with meticulous attention to...09350952- SKU:
- 09350952
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- STOCK BORE CYLINDER
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- POWER VALVE
- COLOR/FINISH:
- ANODIZED
$233.95 -
Cylinder Works Standard Bore High Compression Cylinder Kit for Polaris RZR 900 2015-2016 60004-K01HC
CYLINDER WORKS
$1,253.95Experience enhanced performance and reliability with the CYLINDER WORKS Cylinder Kit 60004-K01HC. Designed for effortless installation, this kit features a direct bolt-on design that eliminates the need for re-plating, ensuring a perfect fit and finish...09310735- SKU:
- 09310735
- Availability:
- Ships Same Business Day
- Weight:
- 9.85 LBS
- UNITS:
- KIT
- BORE SIZE METRIC:
- 93.00 MM
- COMPRESSION RATIO IMPERIAL:
- 11.5:1
- CYLINDER DIAMETER:
- 93,00 MM
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- CYLINDER DIAMETER METRIC:
- 93.00 MM
- RIDING STYLE:
- UTV
- STYLE:
- STANDARD
$1,253.95
