Dirt Bike Engine
Dirt Bike Engine Parts at JJ Motorsports
Discover a full range of dirt bike engine components for rebuilding or upgrading your performance from JJ Motorsports. From crankshafts to cylinder heads and piston kits, these precision-engineered components ensure reliable performance. For additional upgrades, check out our full selection of off-road dirt bike parts to keep your engine running at peak efficiency on the track or trails.
Shop trusted brands like Wiseco for forged piston kits and K&N for high-flow oil filters. Explore related categories such as Dirt Bike Air and Fuel for intake upgrades or Dirt Bike Exhaust for complete systems.
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
-
LA Sleeve Cylinder Sleeve for Yamaha YZ125 2002 YA5470
LA SLEEVE
$127.95Premium Replacement Cylinder Sleeves YA5470 Revitalize your engine's performance with our Premium Replacement Cylinder Sleeves. Crafted for precision and durability, these sleeves are designed to...YA5470- SKU:
- YA5470
- Availability:
- Ships Same Business Day
- Weight:
- 0.68 LBS
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- CYLINDER SLEEVE
- UNITS:
- EACH
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- AC
- BORE SIZE METRIC:
- 54.00 MM
$127.95Qty in Cart: 0Quantity:Price:$127.95Subtotal: -
LA Sleeve Cylinder Sleeve Yamaha YFM660R Grizzly 660 2002-2008 YA7018
LA SLEEVE
$117.95Premium Replacement Cylinder Sleeves - YA7018 Transform your engine's performance with our Premium Replacement Cylinder Sleeves. Engineered for precision and durability, these sleeves are designed to...YA7018- SKU:
- YA7018
- Availability:
- Ships Same Business Day
- Weight:
- 2.48 LBS
- COLOR/FINISH:
- ALUMINUM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- RS
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BORE SIZE METRIC:
- 100.00 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- UTV
$117.95 -
LA Sleeve Cylinder Sleeve for Yamaha YFM600FW Grizzly 4x4 1998-2001 YA814
LA SLEEVE
$131.95Premium Cylinder Sleeves - YA814 Transform your engine's performance with our Premium Cylinder Sleeves, expertly crafted to rejuvenate worn cylinders. Designed for automotive enthusiasts, these...YA814- SKU:
- YA814
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- TYPE:
- RS
- COLOR/FINISH:
- ALUMINUM
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BORE SIZE METRIC:
- 95.00 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
$131.95 -
LA Sleeve Cylinder Sleeve for 1988-2002 Kawasaki KLF220 Bayou 67mm Bore KA5063
LA SLEEVE
$98.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve KA5063, designed to restore performance and extend the life of your cylinders. Crafted from high-quality materials, this replacement sleeve...KA5063- SKU:
- KA5063
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- TYPE:
- RS
- BORE SIZE METRIC:
- 67.00 MM
- COLOR/FINISH:
- ALUMINUM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
$98.95 -
LA Sleeve Cylinder Sleeve for 1991-1994 Kawasaki KDX250 KA5079
LA SLEEVE
$153.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve KA5079, a premium quality replacement designed to restore performance and extend the life of your cylinders. Crafted with precision, this...KA5079- SKU:
- KA5079
- Availability:
- Ships Same Business Day
- Weight:
- 1.44 LBS
- BORE SIZE METRIC:
- 67.40 MM
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- CYLINDER SLEEVE
- UNITS:
- EACH
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- AC
$153.95Qty in Cart: 0Quantity:Price:$153.95Subtotal: -
LA Sleeve Cylinder Sleeve 56mm Bore Kawasaki KX125 1990-1991 KA5107
LA SLEEVE
$131.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve KA5107, designed for optimal performance and durability. This high-quality replacement sleeve ensures a perfect fit, allowing your old...KA5107- SKU:
- KA5107
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- BORE SIZE METRIC:
- 56.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- AC
$131.95 -
LA Sleeve Cylinder Sleeve for Kawasaki KX80 1991-1994 KA5121
LA SLEEVE
$117.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve KA5121, designed to provide a durable and reliable replacement for worn-out cylinders. Engineered for precision and performance, this sleeve...KA5121- SKU:
- KA5121
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- BORE SIZE METRIC:
- 48.00 MM
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- CYLINDER SLEEVE
- UNITS:
- EACH
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- AC
$117.95Qty in Cart: 0Quantity:Price:$117.95Subtotal: -
LA Sleeve Cylinder Sleeve for Kawasaki KX125 1993 54mm Bore KA5179
LA SLEEVE
$131.95Revitalize your engine's performance with the LA SLEEVE Cylinder Sleeve KA5179. Designed for precision and durability, this quality replacement sleeve ensures your old cylinders operate like new,...KA5179- SKU:
- KA5179
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- BORE SIZE METRIC:
- 54.00 MM
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- OFF-ROAD
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
- UNITS:
- EACH
- TYPE:
- AC
$131.95 -
LA Sleeve Cylinder Sleeve for 1993 Kawasaki KX250 66.40mm Bore KA5180
LA SLEEVE
$148.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve KA5180, designed for optimal performance and durability. This high-quality replacement sleeve offers a perfect fit for your engine, ensuring...KA5180- SKU:
- KA5180
- Availability:
- Ships Same Business Day
- Weight:
- 1.42 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- BORE SIZE METRIC:
- 66.40 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- OFF-ROAD
$148.95Qty in Cart: 0Quantity:Price:$148.95Subtotal: -
LA Sleeve Cylinder Sleeve 1995 Kawasaki KX125 54mm Bore KA5251
LA SLEEVE
$131.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve KA5251, designed for exceptional durability and performance. This high-quality replacement sleeve ensures a perfect fit, restoring your...KA5251- SKU:
- KA5251
- Availability:
- Ships Same Business Day
- Weight:
- 0.68 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- AC
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- BORE SIZE METRIC:
- 54.00 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
$131.95 -
LA Sleeve Cylinder Sleeve 66.4mm Bore Kawasaki KX250 1995 KA5253
LA SLEEVE
$148.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve KA5253, engineered for superior performance and durability. Designed to restore the functionality of worn-out cylinders, this high-quality...KA5253- SKU:
- KA5253
- Availability:
- Ships Same Business Day
- Weight:
- 1.42 LBS
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 66.40 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- UNITS:
- EACH
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
$148.95 -
LA Sleeve Cylinder Sleeve for Kawasaki KX100 1995-1997 KA5263
LA SLEEVE
$117.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve KA5263, designed to restore performance and extend the life of your cylinders. Crafted from high-quality materials, this replacement sleeve...KA5263- SKU:
- KA5263
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 52.50 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- UNITS:
- EACH
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
$117.95Qty in Cart: 0Quantity:Price:$117.95Subtotal: -
LA Sleeve Cylinder Sleeve for Kawasaki KX80 1995-1997 48mm Bore KA5316
LA SLEEVE
$117.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve KA5316, designed for exceptional performance and durability. This high-quality replacement sleeve is engineered to restore the functionality...KA5316- SKU:
- KA5316
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- BORE SIZE METRIC:
- 48.00 MM
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- OFF-ROAD
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- AC
$117.95 -
LA Sleeve Cylinder Sleeve 66.4mm 1994 Kawasaki KX80 KA5321
LA SLEEVE
$148.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve KA5321, designed to restore performance and extend the life of your cylinders. Crafted with precision, this quality replacement sleeve...KA5321- SKU:
- KA5321
- Availability:
- Ships Same Business Day
- Weight:
- 1.42 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- BORE SIZE METRIC:
- 66.40 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- OFF-ROAD
$148.95Qty in Cart: 0Quantity:Price:$148.95Subtotal: -
LA Sleeve Cylinder Sleeve 1998-1999 Kawasaki KX250 66.40mm Bore KA5350
LA SLEEVE
$148.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve KA5350, expertly designed to restore the performance of worn-out cylinders. Engineered for precision and durability, this replacement sleeve...KA5350- SKU:
- KA5350
- Availability:
- Ships Same Business Day
- Weight:
- 1.42 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- AC
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- CYLINDER SLEEVE
- UNITS:
- EACH
- BORE SIZE METRIC:
- 66.40 MM
$148.95Qty in Cart: 0Quantity:Price:$148.95Subtotal: -
LA Sleeve Cylinder Sleeve for 2000 Kawasaki KX250 66.4mm Bore KA5422
LA SLEEVE
$148.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve KA5422, designed for optimal performance and durability. This high-quality replacement sleeve is engineered to restore the functionality of...KA5422- SKU:
- KA5422
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- CYLINDER SLEEVE
- UNITS:
- EACH
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- AC
- BORE SIZE METRIC:
- 66.40 MM
$148.95 -
LA Sleeve Cylinder Sleeve 43mm Bore Kawasaki KX60 1985-2003 Suzuki RM60 2003 KA935
LA SLEEVE
$91.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve KA935, designed to restore the integrity and performance of worn-out cylinders. Crafted with precision, this high-quality replacement sleeve...KA935- SKU:
- KA935
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- BORE SIZE METRIC:
- 43.00 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$91.95 -
LA Sleeve Cylinder Sleeve for Kawasaki KX500 1989-2004 KA5087
LA SLEEVE
$162.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve KA5087, designed for optimal performance and durability. This high-quality replacement sleeve ensures a perfect fit and enhances the...KA5087X- SKU:
- KA5087X
- Availability:
- Ships Same Business Day
- Weight:
- 2.10 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- BORE SIZE METRIC:
- 86.00 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
$162.95Qty in Cart: 0Quantity:Price:$162.95Subtotal: -
LA Sleeve Cylinder Sleeve Honda TRX250R 1987-1989 H5032
LA SLEEVE
$143.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5032, designed for optimal performance and durability. This high-quality replacement sleeve helps restore old cylinders to like-new...H5032- SKU:
- H5032
- Availability:
- Ships Same Business Day
- Weight:
- 1.38 LBS
- BORE SIZE METRIC:
- 66.00 MM
- COLOR/FINISH:
- ALUMINUM
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- CI
$143.95Qty in Cart: 0Quantity:Price:$143.95Subtotal: -
LA Sleeve Cylinder Sleeve for Honda TRX300EX 1993-2008 74.00mm H5062
LA SLEEVE
$118.67Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5062, designed for superior performance and longevity. Crafted from high-quality materials, this replacement sleeve ensures a perfect fit...H5062- SKU:
- H5062
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- COLOR/FINISH:
- ALUMINUM
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BORE SIZE METRIC:
- 74.00 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- RS
$118.67Qty in Cart: 0Quantity:Price:$118.67Subtotal:
