Dirt Bike Engine
Discover a full range of dirt bike engine components for rebuilding or upgrading your performance. 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.
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LA Sleeve Cylinder Sleeve 1993 Suzuki RM125 FL5181
LA SLEEVE
$151.95LA SLEEVE Cylinder Sleeve FL5181 Revitalize your engine with the LA SLEEVE Cylinder Sleeve FL5181, designed for superior performance and durability. This high-quality replacement sleeve ensures a perfect fit, allowing your old cylinders to regain their...FL5181- SKU:
- FL5181
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 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
$151.95 -
L.A. Sleeve Cylinder Sleeve for Suzuki RM-250 1991-1993 FL5182
LA SLEEVE
$177.95LA SLEEVE Cylinder Sleeve FL5182 Revitalize your engine with the LA SLEEVE Cylinder Sleeve FL5182, designed for optimal performance and durability. This quality replacement sleeve ensures that your old cylinders can regain their efficiency and...FL5182- SKU:
- FL5182
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- BORE SIZE METRIC:
- 67.00 MM
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- CHROME
- UNITS:
- EACH
$177.95Qty in Cart: 0Quantity:Price:$177.95Subtotal: -
LA Sleeve Sleeve and Piston Kit Kawasaki KX85 2014-2019 LAS5778K
LA SLEEVE
$326.95LA SLEEVE Sleeve and Piston Kit Kawasaki LAS5778K Revitalize your Kawasaki's performance with the LA SLEEVE Sleeve and Piston Kit. Designed for optimal compatibility, this top-end rebuild solution enhances engine efficiency and power output. Experience...09310861- SKU:
- 09310861
- Availability:
- Ships Same Business Day
- Weight:
- 1.65 LBS
- PRODUCT NAME:
- SLEEVE AND PISTON KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$326.95 -
On Sale
LA Sleeve Cylinder Sleeve 93mm Bore Polaris RZR 900 2014 FL5769
LA SLEEVE
MSRP: $129.95Now: $83.00Was: $129.95LA SLEEVE Cylinder Sleeve FL5769 Revitalize your engine with the LA SLEEVE Cylinder Sleeve FL5769, designed for optimal performance and durability. This premium replacement sleeve ensures a precise fit, allowing your old cylinders to function like new...09310863- SKU:
- 09310863
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- BORE SIZE METRIC:
- 93.00 MM
- COLOR/FINISH:
- CHROME
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- UTV
- UNITS:
- KIT
- TYPE:
- AC
MSRP: $129.95Now: $83.00Was: $129.95Qty in Cart: 0Quantity:Price:MSRP: $129.95Now: $83.00Was: $129.95Subtotal: -
LA Sleeve Cylinder Sleeve 77mm Bore Yamaha YZ250F 2004-2013 WR250F 2004-2013 YA5536
LA SLEEVE
$108.95LA SLEEVE Cylinder Sleeve YA5536 Revitalize your engine with the LA SLEEVE Cylinder Sleeve YA5536, designed to provide a durable and effective solution for worn-out cylinders. This high-quality replacement sleeve ensures optimal performance, enhancing...09310265- SKU:
- 09310265
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- BORE SIZE METRIC:
- 77.00 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- TYPE:
- AC
- COLOR/FINISH:
- CHROME
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- CYLINDER SLEEVE
$108.95 -
LA Sleeve Cylinder Rebuild Kit for 2005-2007 Honda CR85R CR85RB Expert LAS-5599K
LA SLEEVE
$312.95LA SLEEVE Sleeve and Piston Kit for Honda LAS-5599K Revitalize your engine with the LA SLEEVE Sleeve and Piston Kit, designed specifically for Honda models. This comprehensive top-end rebuild kit combines advanced materials and engineering to enhance...09310382- SKU:
- 09310382
- Availability:
- Ships Same Business Day
- Weight:
- 1.60 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CYLINDER
- UNITS:
- KIT
- MATERIAL:
- IRON
- PRODUCT NAME:
- REBUILD KIT
- MATERIAL:
- CAST
$312.95 -
KB PERFORMANCE PISTON KIT M8 117" +030 KB542LCA.030
KB PERFORMANCE
$444.95KB PERFORMANCE PISTON KIT M8 117" +030 KB542LCA.030Super Duty Series includes:, Anodized top ring groove and crown, Line2Line abradable skirt coating applied to .003" total thickness for a zero initial fit to allow coating to hone in for a tight quiet...09105727- SKU:
- 09105727
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- COMPRESSION RATIO IMPERIAL:
- 11.0:1
- DISPLACEMENT:
- 117'
- RIDING STYLE:
- STREET
- BORE SIZE METRIC:
- 104.77 MM
- PISTON MATERIAL:
- ALUMINUM
- STROKE LENGTH IMPERIAL:
- 4-1/2'
- UNITS:
- KIT
- PRODUCT NAME:
- PISTON KIT
$444.95Qty in Cart: 0Quantity:Price:$444.95Subtotal: -
On Sale
K&S TECHNOLOGIES Water Pump Repair Gasket Kit - CR250R 75-1006
K&S TECHNOLOGIES
MSRP: $32.95Now: $21.00Was: $32.95K&S TECHNOLOGIES Water Pump Repair Gasket Kit CR250R 75-1006Each kit includes all necessary gaskets, washers, seals and O-rings; kit contents vary by model09341914- SKU:
- 09341914
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP REPAIR
- UNITS:
- KIT
MSRP: $32.95Now: $21.00Was: $32.95Qty in Cart: 0Quantity:Price:MSRP: $32.95Now: $21.00Was: $32.95Subtotal: -
On Sale
K&S TECHNOLOGIES Water Pump Repair Gasket - KX250F 75-2001
K&S TECHNOLOGIES
MSRP: $52.95Now: $34.00Was: $52.95K&S TECHNOLOGIES Water Pump Repair Gasket KX250F 75-2001Each kit includes all necessary gaskets, washers, seals and O-rings; kit contents vary by model09341915- SKU:
- 09341915
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP REPAIR
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
MSRP: $52.95Now: $34.00Was: $52.95 -
K&S TECHNOLOGIES Water Pump Repair Kit - CR85R 75-1008
K&S TECHNOLOGIES
$32.95K&S TECHNOLOGIES Water Pump Repair Kit CR85R 75-1008Each kit includes all necessary gaskets, washers, seals and O-rings; kit contents vary by model09342879- SKU:
- 09342879
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP REPAIR
- UNITS:
- KIT
$32.95Qty in Cart: 0Quantity:Price:$32.95Subtotal: -
CYCLE CRAFT Ratchet Dogs 39-21251
CYCLE CRAFT
$6.95CYCLE CRAFT Ratchet Dogs 39-21251Kits contain main spring, cover plate, throw-out springs, pawls, D-washers, rope and pull handle, Parts fit all models ATC185/200; will also fit 90/110 models if different rope is used, Fit models ATC185 80, ATC185S...21251- SKU:
- 21251
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- RATCHET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- PULL START
- UNITS:
- EACH
$6.95Qty in Cart: 0Quantity:Price:$6.95Subtotal: -
CYCLE CRAFT Friction Washer 39-21252
CYCLE CRAFT
$37.23CYCLE CRAFT Friction Washer 39-21252Kits contain main spring, cover plate, throw-out springs, pawls, D-washers, rope and pull handle, Parts fit all models ATC185/200; will also fit 90/110 models if different rope is used, Fit models ATC185 80, ATC185S...21252- SKU:
- 21252
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- WASHER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- TYPE:
- STARTER
$37.23 -
CYCLE CRAFT Friction Plate 39-21253
CYCLE CRAFT
$14.31CYCLE CRAFT Friction Plate 39-21253Kits contain main spring, cover plate, throw-out springs, pawls, D-washers, rope and pull handle, Parts fit all models ATC185/200; will also fit 90/110 models if different rope is used, Fit models ATC185 80, ATC185S...21253- SKU:
- 21253
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- COVER PLATE
- TYPE:
- STARTER
$14.31 -
Cylinder Works Big Bore Gasket Kit for 2016-2023 KTM 250 SX-F 81mm Bore 51006-G01
CYLINDER WORKS
$146.95CYLINDER WORKS Gasket Kit Big Bore 51006-G01 Enhance your engine's performance with the CYLINDER WORKS Gasket Kit Big Bore 51006-G01, expertly crafted in the U.S.A. This high-quality gasket kit is designed for durability and precision, ensuring a perfect...09346005- SKU:
- 09346005
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BORE SIZE IMPERIAL:
- OVERSIZE (+3.00 MM)
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CYLINDER
- UNITS:
- KIT
$146.95 -
Cylinder Works Standard Bore Cylinder KTM 50 SX 2009-2023 CW50012
CYLINDER WORKS
$402.95CYLINDER WORKS Cylinder Standard CW50012 Upgrade your engine with the CYLINDER WORKS Standard CW50012, a high-performance replacement cylinder designed for seamless installation and superior durability. Crafted to match OEM specifications, this cylinder...09311022- SKU:
- 09311022
- Availability:
- Ships Same Business Day
- Weight:
- 2.60 LBS
- UNITS:
- EACH
- CYLINDER DIAMETER METRIC:
- 39.50 MM
- PRODUCT NAME:
- CYLINDER
- RIDING STYLE:
- OFF-ROAD
- CYLINDER DIAMETER:
- 39,50 MM
- ENGINE TYPE:
- 2-CYCLE
- STYLE:
- STANDARD
$402.95 -
Cylinder Works Standard Bore Cylinder for Polaris RZR 900 2017-2020 CW60007
CYLINDER WORKS
$644.95CYLINDER WORKS Cylinder Standard CW60007 Experience unparalleled performance with the CYLINDER WORKS Standard CW60007, a ready-to-install, direct bolt-on cylinder designed to fit seamlessly into your engine setup. Crafted with precision, this cylinder...09311023- SKU:
- 09311023
- Availability:
- Ships Same Business Day
- Weight:
- 7.15 LBS
- UNITS:
- EACH
- CYLINDER DIAMETER METRIC:
- 93.00 MM
- ENGINE TYPE:
- 4-CYCLE
- RIDING STYLE:
- UTV
- STYLE:
- STANDARD
- CYLINDER DIAMETER:
- 93,00 MM
- PRODUCT NAME:
- CYLINDER
$644.95 -
Cylinder Works Yamaha WR250F 2018-2019 High Compression Cylinder Kit 20010-K02HC
CYLINDER WORKS
$694.95CYLINDER WORKS Big Bore Cylinder Kit 20010-K02HC Elevate your engine's performance with the CYLINDER WORKS Big Bore Cylinder Kit. Designed for seamless installation, this kit combines durability with top-notch engineering, ensuring your bike runs...09310709- SKU:
- 09310709
- Availability:
- Ships Same Business Day
- Weight:
- 3.20 LBS
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- CYLINDER DIAMETER:
- 77,00 MM
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 77.00 MM
- COMPRESSION RATIO IMPERIAL:
- 14.2:1
- STYLE:
- STANDARD
- ENGINE TYPE:
- 4-CYCLE
$694.95 -
Cylinder Works Standard Bore Cylinder Kit for 2007-2008 Honda CRF450R 10002-K02
CYLINDER WORKS
$603.95CYLINDER WORKS Cylinder Kit Standard Honda 10002-K02 Elevate your motorcycle's performance with the CYLINDER WORKS Cylinder Kit, designed for a seamless fit with no need for re-plating. This high-quality kit not only mirrors the original equipment...09310839- SKU:
- 09310839
- Availability:
- Ships Same Business Day
- Weight:
- 4.70 LBS
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 96,00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- OVERBORE METRIC:
- STANDARD
- STYLE:
- STANDARD
- DISPLACEMENT:
- 449 CC
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- COMPRESSION RATIO IMPERIAL:
- 12.1:1
$603.95 -
Cylinder Works Standard Bore Cylinder Kit for Honda CRF450R 2019 10010-K02
CYLINDER WORKS
$677.95CYLINDER WORKS Cylinder Kit Standard Honda 10010-K02 Elevate your engine's performance with the Cylinder Works Cylinder Kit for Honda. This ready-to-install, direct bolt-on solution ensures a seamless fit and enhanced longevity without the need for...09310840- SKU:
- 09310840
- Availability:
- Ships Same Business Day
- Weight:
- 4.10 LBS
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 96,00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- STYLE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- DISPLACEMENT:
- 449 CC
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
$677.95 -
Cylinder Works Big Bore Cylinder Kit for Honda CRF450R 2007-2019 10002-K02HC
CYLINDER WORKS
$639.95CYLINDER WORKS Big Bore Cylinder Kit for Honda 10002-K02HC Enhance your Honda's performance with the CYLINDER WORKS Big Bore Cylinder Kit. This ready-to-install kit is engineered for seamless integration, ensuring you get maximum power without the hassle...09310841- SKU:
- 09310841
- Availability:
- Ships Same Business Day
- Weight:
- 4.70 LBS
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 96,00 MM
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- DISPLACEMENT:
- 449 CC
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- RIDING STYLE:
- OFF-ROAD
$639.95
