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
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LA Sleeve Cylinder Sleeve for Honda CR80R 1987-2002 H5066
LA SLEEVE
$117.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5066, a premium solution designed to restore the functionality of worn-out cylinders. Crafted for durability and precision, this replacement...H5066- SKU:
- H5066
- Availability:
- Ships Same Business Day
- Weight:
- 0.63 LBS
- BORE SIZE METRIC:
- 47.00 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- AC
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$117.95Qty in Cart: 0Quantity:Price:$117.95Subtotal: -
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,...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...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...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...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...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...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
$127.95Qty in Cart: 0Quantity:Price:$127.95Subtotal: -
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...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 2000 Honda CR125R H5439
LA SLEEVE
$127.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5439, designed for superior performance and durability. These high-quality replacement sleeves are engineered to restore the functionality...H5439- SKU:
- H5439
- Availability:
- Ships Same Business Day
- Weight:
- 0.74 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- AC
- PRODUCT NAME:
- CYLINDER SLEEVE
- UNITS:
- EACH
- BORE SIZE METRIC:
- 54.00 MM
- COLOR/FINISH:
- CHROME
$127.95Qty in Cart: 0Quantity:Price:$127.95Subtotal: -
LA Sleeve Cylinder Sleeve 78.50mm Bore Honda TRX350TM FourTrax Rancher 2000-2006 H5443
LA SLEEVE
$104.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5443, engineered to provide a perfect fit and superior performance. This high-quality replacement sleeve is designed to extend the life of...H5443- SKU:
- H5443
- Availability:
- Ships Same Business Day
- Weight:
- 1.86 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- RS
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BORE SIZE METRIC:
- 78.50 MM
- COLOR/FINISH:
- ALUMINUM
- PRODUCT NAME:
- CYLINDER SLEEVE
$104.95Qty in Cart: 0Quantity:Price:$104.95Subtotal: -
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...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
$131.95Qty in Cart: 0Quantity:Price:$131.95Subtotal: -
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...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 -
LA Sleeve Cylinder Sleeve 66.4mm Bore 1996 Suzuki RM250 FL5295
LA SLEEVE
$148.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve FL5295, designed to restore performance and extend the life of your cylinders. Crafted with precision and durability in mind, this...FL5295- SKU:
- FL5295
- Availability:
- Ships Same Business Day
- Weight:
- 1.40 LBS
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- BORE SIZE METRIC:
- 66.40 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- AC
- RIDING STYLE:
- OFF-ROAD
$148.95Qty in Cart: 0Quantity:Price:$148.95Subtotal: -
LA Sleeve Cylinder Sleeve 54mm 1996-1998 Suzuki LT80 FL5323
LA SLEEVE
$131.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve FL5323, designed for optimal performance and durability. This high-quality replacement sleeve ensures a perfect fit, allowing you to extend...FL5323- SKU:
- FL5323
- 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
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- CYLINDER SLEEVE
$131.95Qty in Cart: 0Quantity:Price:$131.95Subtotal: -
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...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...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 -
L.A. Sleeve Cylinder Sleeve 87.50mm Bore Arctic Cat 500 1998-2009 Suzuki KingQuad 500 2009-2020 Suzuki Vinson 500 2002-2007 FL5370
LA SLEEVE
$117.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve FL5370, designed for optimal performance and durability. This high-quality replacement sleeve ensures a perfect fit, allowing your cylinders...FL5370- SKU:
- FL5370
- Availability:
- Ships Same Business Day
- Weight:
- 1.75 LBS
- COLOR/FINISH:
- ALUMINUM
- MATERIAL:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BORE SIZE METRIC:
- 87.50 MM
- DISPLACEMENT:
- 493 CC
- TYPE:
- AC
$117.95Qty in Cart: 0Quantity:Price:$117.95Subtotal: -
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...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,...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 -
LA Sleeve Cylinder Sleeve for Suzuki RM250 2002 66.4mm FL5474
LA SLEEVE
$148.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve FL5474, a premium quality replacement designed to restore the performance of your old cylinders. Engineered with precision, this sleeve...FL5474- SKU:
- FL5474
- Availability:
- Ships Same Business Day
- Weight:
- 1.44 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- BORE SIZE METRIC:
- 66.40 MM
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- CYLINDER SLEEVE
$148.95Qty in Cart: 0Quantity:Price:$148.95Subtotal:
