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 Yamaha YZ125 2004-2021 YA5533
LA SLEEVE
$127.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve YA5533, designed for exceptional durability and performance. This high-quality replacement sleeve ensures a perfect fit, allowing your old...09310161- SKU:
- 09310161
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- BORE SIZE METRIC:
- 54.00 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- AC
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- RIDING STYLE:
- OFF-ROAD
$127.95 -
LA Sleeve Cylinder Sleeve 97mm Honda XR600R 1991-2000 H5159
LA SLEEVE
$131.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5159, designed for quality and precision. This replacement sleeve ensures optimal performance and durability, making it an essential...09310318- SKU:
- 09310318
- Availability:
- Ships Same Business Day
- Weight:
- 2.48 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- BORE SIZE METRIC:
- 97.00 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
$131.95 -
LA SLEEVE Cylinder Sleeve for Honda XR650R 2000-2007 H5440
LA SLEEVE
$131.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5440, designed to restore performance and extend the life of your cylinders. Crafted with precision, this high-quality replacement sleeve...09310319- SKU:
- 09310319
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- UNITS:
- EACH
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- COLOR/FINISH:
- CHROME
- BORE SIZE METRIC:
- 100.00 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
$131.95Qty in Cart: 0Quantity:Price:$131.95Subtotal: -
LA Sleeve Cylinder Sleeve 78mm AC Honda CRF250R 2005-2009 CRF250X 2005-2017 H5597
LA SLEEVE
$117.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5597, designed for exceptional durability and performance. This quality replacement sleeve provides a seamless fit for old cylinders,...09310262- SKU:
- 09310262
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- BORE SIZE METRIC:
- 78.00 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
$117.95 -
L.A. Sleeve Cylinder Sleeve for Kawasaki KLX450R 2008-2009 KX450F 2006-2008 KA5607
LA SLEEVE
$127.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve KA5607, designed for high performance and durability. Crafted from premium materials, this replacement sleeve ensures a perfect fit and...09310263- SKU:
- 09310263
- Availability:
- Ships Same Business Day
- Weight:
- 1.30 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- BORE SIZE METRIC:
- 96.00 MM
- COLOR/FINISH:
- CHROME
$127.95 -
LA Sleeve Cylinder Sleeve for Kawasaki KX250 2019 KA5611
LA SLEEVE
$104.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve KA5611, designed to enhance performance and extend the lifespan of your cylinders. Crafted from high-quality materials, these sleeves provide...09310264- SKU:
- 09310264
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- BORE SIZE METRIC:
- 77.00 MM
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
$104.95 -
LA Sleeve Cylinder Sleeve 54mm Bore 2007-2015 KTM 125 SX FL5692
LA SLEEVE
$132.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve FL5692, designed to restore performance and extend the life of your old cylinders. Crafted with precision engineering, these sleeves provide...09310638- SKU:
- 09310638
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
- BORE SIZE METRIC:
- 54.00 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
$132.95 -
LA Sleeve Cylinder Sleeve for 2015-2020 Polaris Sportsman 850 FL5395
LA SLEEVE
$117.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve FL5395, designed to restore performance and extend the life of your cylinders. Crafted with precision and durability in mind, this...09310643- SKU:
- 09310643
- Availability:
- Ships Same Business Day
- Weight:
- 1.21 LBS
- BORE SIZE METRIC:
- 87.00 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- COLOR/FINISH:
- ALUMINUM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$117.95 -
LA Sleeve Cylinder Sleeve Yamaha YFM550 Grizzly 2009-2013 YA5690
LA SLEEVE
$117.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve YA5690, designed for optimal performance and durability. This high-quality replacement sleeve provides a seamless fit, ensuring that your...09310646- SKU:
- 09310646
- Availability:
- Ships Same Business Day
- Weight:
- 2.35 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
$117.95 -
LA Sleeve Cylinder Sleeve for Honda CRF230F 2003-2019 H5491
LA SLEEVE
$90.95Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5491, designed for exceptional durability and performance. This high-quality replacement sleeve ensures a perfect fit, allowing your old...09310515- SKU:
- 09310515
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- COLOR/FINISH:
- CHROME
- TYPE:
- CI
- UNITS:
- EACH
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 65.50 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
$90.95Qty in Cart: 0Quantity:Price:$90.95Subtotal: -
LA Sleeve Cylinder Sleeve for 1987-2006 Yamaha Banshee 350 YA5023
LA SLEEVE
$127.95Premium Replacement Cylinder Sleeves YA5023 Elevate your engine's efficiency with our Premium Replacement Cylinder Sleeves, meticulously engineered to provide superior performance and reliability...YA5023- SKU:
- YA5023
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- RIDING STYLE:
- ATV
- BORE SIZE METRIC:
- 64.00 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- CI
- UNITS:
- EACH
- COLOR/FINISH:
- ALUMINUM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
$127.95Qty in Cart: 0Quantity:Price:$127.95Subtotal: -
L.A. SLEEVE Cylinder Sleeve for Yamaha YFM 350 1987-2010 YA5024
LA SLEEVE
$111.95Premium Replacement Cylinder Sleeves YA5024 Revamp your engine's performance with our Premium Replacement Cylinder Sleeves, engineered to breathe new life into your machinery. Crafted with precision...YA5024- SKU:
- YA5024
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- BORE SIZE METRIC:
- 83.00 MM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- TYPE:
- RS
- COLOR/FINISH:
- ALUMINUM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
$111.95 -
L.A. Sleeve Cylinder Sleeve for Yamaha Blaster 1988-2006 YA5035
LA SLEEVE
$127.95High-Performance Replacement Cylinder Sleeves - YA5035 Revitalize your engine's capabilities with our premium Replacement Cylinder Sleeves. Crafted for exceptional strength and reliability, these...YA5035- SKU:
- YA5035
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- TYPE:
- CI
- UNITS:
- EACH
- BORE SIZE METRIC:
- 66.00 MM
- COLOR/FINISH:
- ALUMINUM
- RIDING STYLE:
- ATV
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
$127.95 -
LA Sleeve Cylinder Sleeve for Yamaha YFM400 Big Bear 2000-2006 YA5231
LA SLEEVE
$111.95Premium Replacement Cylinder Sleeves - YA5231 Enhance your engine's efficiency with our Premium Replacement Cylinder Sleeves. Crafted for exceptional performance, these sleeves are the ideal choice...YA5231- SKU:
- YA5231
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BORE SIZE METRIC:
- 83.00 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- RS
- COLOR/FINISH:
- ALUMINUM
- PRODUCT NAME:
- CYLINDER SLEEVE
$111.95 -
LA Sleeve Cylinder Sleeve Yamaha YZ125 1994-1995 54mm Bore YA5257
LA SLEEVE
$131.95Premium Cylinder Sleeves - Model YA5257 Transform your engine's performance with our Premium Cylinder Sleeves. Crafted with precision and durability in mind, these sleeves offer an exceptional...YA5257- SKU:
- YA5257
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 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:
- 54.00 MM
$131.95 -
LA Sleeve Cylinder Sleeve for Yamaha YZ250 1994-1995 YA5258
LA SLEEVE
$148.95Revitalize your engine with our premium quality replacement cylinder sleeves, designed to restore performance and extend the life of your machinery. Engineered with precision, these sleeves provide a...YA5258- SKU:
- YA5258
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- BORE SIZE METRIC:
- 68.00 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- AC
- PRODUCT NAME:
- CYLINDER SLEEVE
$148.95 -
LA Sleeve Cylinder Sleeve Yamaha YZ125 1996-1998 YA5348
LA SLEEVE
$131.95Premium Replacement Cylinder Sleeves YA5348 Revamp your engine's performance with our premium replacement cylinder sleeves, designed to rejuvenate worn-out cylinders. Crafted with precision and...YA5348- SKU:
- YA5348
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- BORE SIZE METRIC:
- 54.00 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$131.95Qty in Cart: 0Quantity:Price:$131.95Subtotal: -
LA Sleeve Cylinder Sleeve Yamaha YZ250 1999-2019 YA5377
LA SLEEVE
$148.95Premium Cylinder Sleeves YA5377 Revitalize your engine with our Premium Cylinder Sleeves, expertly crafted to restore and enhance performance. Designed for both vintage and modern applications, these...YA5377- SKU:
- YA5377
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 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 Yamaha YZ125 1999-2001 YA5378
LA SLEEVE
$127.95Premium Cylinder Sleeves - YA5378 Revive your engine's efficiency with our Premium Cylinder Sleeves, meticulously crafted to enhance performance and extend the lifespan of your engine. These sleeves...YA5378- SKU:
- YA5378
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- BORE SIZE METRIC:
- 54.00 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- UNITS:
- EACH
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- OFF-ROAD
$127.95Qty in Cart: 0Quantity:Price:$127.95Subtotal: -
On Sale
LA Sleeve Cylinder Sleeve for Yamaha YFM400 Kodiak 2000-2004 YA5425
LA SLEEVE
MSRP: $111.95Now: $72.00Was: $111.95Premium Replacement Cylinder Sleeves YA5425 Upgrade your machinery with our Premium Replacement Cylinder Sleeves, designed to breathe new life into worn-out cylinders. These sleeves combine advanced...YA5425- SKU:
- YA5425
- Availability:
- Ships Same Business Day
- Weight:
- 1.95 LBS
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- BORE SIZE METRIC:
- 84.50 MM
- TYPE:
- RS
- COLOR/FINISH:
- ALUMINUM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
MSRP: $111.95Now: $72.00Was: $111.95
