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 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 ensures optimal fit and longevity, making it the ideal...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
$117.95 -
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, enhancing overall efficiency and longevity. Trust in...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 smooth operation and extended lifespan. Upgrade your...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
$148.95 -
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 cylinder's functionality and extending its lifespan...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 replacement sleeve ensures optimal fit and reliable...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 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 of old cylinders, ensuring your engine runs smoothly...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 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 ensures a perfect fit and long-lasting durability,...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 1988-1989 Honda CR250R H5076
LA SLEEVE
$148.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5076, designed to provide a perfect fit and exceptional durability. This high-quality replacement sleeve ensures optimal performance, extending the life of your cylinders and enhancing engine...H5076- SKU:
- H5076
- Availability:
- Ships Same Business Day
- Weight:
- 1.44 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- AC
- BORE SIZE METRIC:
- 66.40 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
$148.95 -
LA Sleeve Cylinder Sleeve 89mm Bore Honda CR500R 1989-2001 H5077
LA SLEEVE
$162.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5077, designed to restore performance and extend the life of your cylinders. Crafted from high-quality materials, this replacement sleeve ensures a perfect fit and optimal efficiency for your...H5077- SKU:
- H5077
- Availability:
- Ships Same Business Day
- Weight:
- 1.81 LBS
- COLOR/FINISH:
- CHROME
- BORE SIZE METRIC:
- 89.00 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- CI
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$162.95 -
LA Sleeve Cylinder Sleeve for 1990-1991 Honda CR125R 54mm Bore H5104
LA SLEEVE
$131.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5104, designed to enhance performance and extend the life of your cylinders. Crafted from high-quality materials, these replacement sleeves ensure a precise fit and optimal sealing, making them...H5104- SKU:
- H5104
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- BORE SIZE METRIC:
- 54.00 MM
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CYLINDER SLEEVE
- UNITS:
- EACH
- TYPE:
- AC
$131.95 -
La Sleeve Cylinder Sleeve 66.40mm Bore Honda CR250R 1994 H5198
LA SLEEVE
$148.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5198, designed to provide a high-quality replacement that restores performance and durability to worn-out cylinders. Engineered with precision, this cylinder sleeve ensures a perfect fit and...H5198- SKU:
- H5198
- Availability:
- Ships Same Business Day
- Weight:
- 1.38 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- AC
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- BORE SIZE METRIC:
- 66.40 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
$148.95 -
LA Sleeve Cylinder Sleeve for Honda CR125R 1993-1995 H5249
LA SLEEVE
$131.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5249, designed to restore performance and extend the life of worn-out cylinders. Crafted from high-quality materials, this replacement sleeve ensures a perfect fit and optimal functionality for...H5249- SKU:
- H5249
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- BORE SIZE METRIC:
- 54.00 MM
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- CYLINDER SLEEVE
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- AC
- UNITS:
- EACH
$131.95 -
LA Sleeve Cylinder Sleeve 54mm Bore Honda CR125R 1996-1999 H5291
LA SLEEVE
$127.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5291, designed to restore performance and extend the life of your cylinders. Crafted with precision and durability in mind, this replacement sleeve ensures a perfect fit and optimal functionality...H5291- SKU:
- H5291
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- BORE SIZE METRIC:
- 54.00 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- AC
$127.95 -
LA Sleeve Cylinder Sleeve 66.40mm Bore Honda CR250R 1999-2000 H5375
LA SLEEVE
$148.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5375, designed to provide high-quality performance and durability. This replacement sleeve is engineered to restore the functionality of worn cylinders, ensuring optimal engine efficiency. With...H5375- SKU:
- H5375
- Availability:
- Ships Same Business Day
- Weight:
- 1.45 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
$148.95 -
LA Sleeve Cylinder Sleeve 54mm Bore Suzuki RM125 1994-1996 FL5255
LA SLEEVE
$131.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve FL5255, designed for precision and durability. Crafted from high-quality materials, these replacement sleeves ensure optimal performance and longevity for your cylinders, making them an essential...FL5255- SKU:
- FL5255
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- BORE SIZE METRIC:
- 54.00 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
$131.95 -
LA Sleeve Cylinder Sleeve 83mm Bore Polaris Scrambler 400 2000-2002 FL5274
LA SLEEVE
$153.95Revitalize your engine with the high-quality LA SLEEVE Cylinder Sleeve FL5274. Designed for precision and durability, this replacement sleeve ensures optimal performance and longevity for your cylinders. Upgrade your machinery with a reliable solution...FL5274- SKU:
- FL5274
- Availability:
- Ships Same Business Day
- Weight:
- 1.35 LBS
- COLOR/FINISH:
- ALUMINUM
- TYPE:
- CI
- UNITS:
- EACH
- BORE SIZE METRIC:
- 83.00 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- ATV
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
$153.95 -
L.A. Sleeve Cylinder Sleeve for Suzuki RM125 1998-1999 54mm FL5346
LA SLEEVE
$127.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve FL5346, designed to restore performance and extend the life of your cylinders. Crafted with precision, these replacement sleeves offer a reliable solution for worn-out cylinders, ensuring optimal...FL5346- SKU:
- FL5346
- Availability:
- Ships Same Business Day
- Weight:
- 0.72 LBS
- BORE SIZE METRIC:
- 54.00 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
$127.95 -
LA Sleeve Cylinder Sleeve Suzuki RM250 1998 66.40mm FL5357
LA SLEEVE
$148.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve FL5357, designed to restore the performance of your old cylinders. Crafted from high-quality materials, these sleeves ensure durability and a perfect fit, making them an essential choice for any...FL5357- SKU:
- FL5357
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- BORE SIZE METRIC:
- 66.40 MM
- TYPE:
- AC
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
$148.95 -
LA Sleeve Cylinder Sleeve Suzuki RM125 2000-2003 FL5420
LA SLEEVE
$127.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve FL5420, designed to restore performance and extend the life of your cylinders. Crafted with precision, this high-quality replacement sleeve ensures a perfect fit and optimal functionality. Upgrade...FL5420- SKU:
- FL5420
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- BORE SIZE METRIC:
- 54.00 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
$127.95 -
LA Sleeve Cylinder Sleeve 90mm Bore Suzuki DR-Z400S 2000-2022 FL5430
LA SLEEVE
$117.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve FL5430, designed for optimal performance and durability. This high-quality replacement sleeve ensures your old cylinder operates like new, enhancing efficiency and longevity. Ideal for those...FL5430- SKU:
- FL5430
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- BORE SIZE METRIC:
- 90.00 MM
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- ALUMINUM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- STREET
- TYPE:
- AC
- ENGINE TYPE:
- 4-STROKE
- UNITS:
- EACH
$117.95
