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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- Qty in Cart
- Quantity
- Price
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Hot Cams Valve Shim 9.48mm x 1.70mm for Honda CRF450R 2002-2018 5PK948170
HOT CAMS
$9.95HOT CAMS Valve Shim 9.48 x 1.70 - 5 Pack Enhance your engine's performance with the HOT CAMS Valve Shim pack, designed for precision and durability. Each shim measures 9.48 x 1.70 mm, ensuring a perfect fit for your valve shim kits. Ideal for maintaining...09261382- SKU:
- 09261382
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 1.70 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$9.95 -
Hot Cams Valve Shim 9.48mm x 3.10mm for Honda CRF450R 2002-2012 5PK948310
HOT CAMS
$9.95HOT CAMS Valve Shim Replacement Pack Enhance your engine's performance with the HOT CAMS Valve Shim Replacement Pack. Designed to refill your Valve Shim Kits, these precision-engineered shims ensure optimal valve clearance and longevity. Each pack...09261410- SKU:
- 09261410
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- RIDING STYLE:
- STREET
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- UNITS:
- 5 PACK
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
- VALVE SHIM THICKNESS METRIC:
- 3.10 MM
$9.95 -
Hot Cams Valve Shim 9.48mm x 3.20mm for Honda CRF450R 2002-2014 5PK948320
HOT CAMS
$9.95HOT CAMS Valve Shim 9.48 x 3.20 - 5 Pack Enhance your engine's performance with the HOT CAMS Valve Shim 9.48 x 3.20 pack. Designed for precision and reliability, these replacement shims are essential for maintaining optimal valve clearance in your engine...09261412- SKU:
- 09261412
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 3.20 MM
- MATERIAL:
- STEEL
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- ATV
- TYPE:
- VALVE
$9.95 -
Hot Cams Valve Shim 9.48mm x 3.35mm for Honda CRF450R 2002-2012 5PK948335
HOT CAMS
$9.95HOT CAMS Valve Shim Replacement Pack Enhance your engine's performance with the HOT CAMS Valve Shim Replacement Pack. Designed specifically to refill your Valve Shim Kits, these shims ensure optimal valve adjustment and longevity. Each pack contains...09261415- SKU:
- 09261415
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
- VALVE SHIM THICKNESS METRIC:
- 3.35 MM
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- MATERIAL:
- STEEL
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
$9.95 -
Hot Cams Valve Shim Kit for Honda CRF450R 2002-2018 5PK948340
HOT CAMS
$9.95HOT CAMS Valve Shim 9.48 x 3.40 - 5 Pack Enhance your engine's performance with the HOT CAMS Valve Shim pack, designed for precision and reliability. This 5-pack of shims is perfect for refilling your Valve Shim Kits, ensuring optimal valve clearance and...09261416- SKU:
- 09261416
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- OUTSIDE DIAMETER METRIC:
- 9.48 MM
- RIDING STYLE:
- SNOW
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SHIM
- RIDING STYLE:
- UTV
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- VALVE
- UNITS:
- 5 PACK
- VALVE SHIM THICKNESS METRIC:
- 3.40 MM
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- MATERIAL:
- STEEL
- RIDING STYLE:
- OFF-ROAD
$9.95 -
PROX Piston - GP 760 Waverunner 01.2514.025
PROX
$138.90PROX Piston GP 760 Waverunner 01.2514.025Piston for watercraft applications09102744- SKU:
- 09102744
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- BORE SIZE METRIC:
- 84.25 MM
- RIDING STYLE:
- WATERCRAFT
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- EACH
$138.90Qty in Cart: 0Quantity:Price:$138.90Subtotal: -
PROX Piston - GP 760 Waverunner 01.2514.050
PROX
$129.95PROX Piston GP 760 Waverunner 01.2514.050Piston for watercraft applications09102745- SKU:
- 09102745
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
- BORE SIZE METRIC:
- 84.50 MM
- PRODUCT NAME:
- PISTON KIT
- UNITS:
- EACH
- ENGINE TYPE:
- 2-STROKE
- PISTON MATERIAL:
- ALUMINUM
- RIDING STYLE:
- WATERCRAFT
$129.95 -
PROX Piston - GP 760 Waverunner 01.2514.100
PROX
$129.95PROX Piston GP 760 Waverunner 01.2514.100Piston for watercraft applications09102747- SKU:
- 09102747
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- WATERCRAFT
- PISTON MATERIAL:
- ALUMINUM
- ENGINE TYPE:
- 2-STROKE
- UNITS:
- EACH
- BORE SIZE METRIC:
- 85.00 MM
$129.95 -
PROX Ring Set 02.1111
PROX
$24.95PROX Ring Set 02.1111Manufactured in Japan and designed as OEM replacements09120161- SKU:
- 09120161
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- PRODUCT NAME:
- PISTON RING
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- SET
- PISTON MATERIAL:
- ALUMINUM ALLOY
$24.95 -
PROX Piston Kit - KTM300EXC '17-'18 01.6387.B
PROX
$189.95PROX Piston Kit KTM300EXC '17-'18 01.6387.BManufactured in Japan and designed to be OEM replacement, Cast from a high-silicon-content aluminum alloy that meets or exceeds OEM specifications, then CNC-machined to extremely close tolerances, Pistons...09106265- SKU:
- 09106265
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- PISTON KIT
$189.95 -
Hinson Racing Clutch Cover 2002-2022 Yamaha YZ85 C159
HINSON RACING
$159.99HINSON RACING Clutch Cover YZ85 C159 Upgrade your YZ85 with the HINSON RACING Clutch Cover, designed to enhance performance and durability on the track. Engineered for optimal heat dissipation, this clutch cover provides a significant advantage over...09401036- SKU:
- 09401036
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- T-6 ALUMINUM
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- MODEL:
- BILLETPROOF
$159.99 -
Hinson Racing Clutch Cover KTM 85 SX 2018-2024 C477
HINSON RACING
$169.99HINSON RACING Clutch Cover C477 The HINSON RACING Clutch Cover C477 is engineered for superior performance, delivering enhanced heat dissipation and durability for demanding racing conditions. Designed and manufactured in the U.S.A., this clutch cover...09401178- SKU:
- 09401178
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- BILLETPROOF
- MATERIAL:
- T-6 ALUMINUM
- TYPE:
- CLUTCH
- UNITS:
- EACH
$169.99 -
Hinson Racing Clutch Cover for Honda CR250R 2002-2007 C028-002
HINSON RACING
$189.99Enhance your CR250's performance with the HINSON RACING Clutch Cover. Designed for superior heat dissipation and built to withstand the rigors of racing, this clutch cover is a must-have upgrade for serious riders. Proudly made in the U.S.A., it combines...09401255- SKU:
- 09401255
- Availability:
- Ships Same Business Day
- Weight:
- 1.25 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- MODEL:
- BILLETPROOF
- MATERIAL:
- T-6 ALUMINUM
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$189.99 -
Hinson Racing Clutch Cover Yamaha YZ250 2001-2024 C054
HINSON RACING
$159.99HINSON RACING Clutch Cover YZ250 C054 Elevate your YZ250's performance with the Hinson Racing Clutch Cover, designed for optimal heat dissipation and unmatched durability. Engineered with race-tested materials, this cover offers a significant upgrade...09401256- SKU:
- 09401256
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- TYPE:
- CLUTCH
- MATERIAL:
- T-6 ALUMINUM
- MODEL:
- BILLETPROOF
$159.99 -
Hinson Racing Clutch Cover KTM 250 SX 2012 C200
HINSON RACING
$169.99HINSON RACING Clutch Cover KTM C200 Elevate your KTM C200's performance with the HINSON RACING Clutch Cover, engineered for superior heat dissipation and enhanced durability. This race-proven component is designed to withstand the rigors of competitive...09401259- SKU:
- 09401259
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- TYPE:
- CLUTCH
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- T-6 ALUMINUM
- MODEL:
- BILLETPROOF
$169.99 -
Hinson Racing Clutch Cover Yamaha YZ125 2005-2022 C240
HINSON RACING
$159.99HINSON RACING Clutch Cover YZ125 C240 Elevate your YZ125's performance with the HINSON RACING Clutch Cover C240, designed for superior heat dissipation and enhanced durability. This race-proven component ensures that your bike operates at peak...09401260- SKU:
- 09401260
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- MATERIAL:
- T-6 ALUMINUM
- MODEL:
- BILLETPROOF
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$159.99 -
Hinson Racing Clutch Cover for 2007-2022 Honda CRF150R C390
HINSON RACING
$599.99Enhance your CRF150R's performance with the HINSON RACING Clutch Cover. Engineered for superior heat dissipation and durability, this clutch cover is a must-have for serious racers looking to gain a competitive edge. Proudly made in the U.S.A., it...09401261- SKU:
- 09401261
- Availability:
- Ships Same Business Day
- Weight:
- 2.00 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- MODEL:
- BILLETPROOF
- MATERIAL:
- T-6 ALUMINUM
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$599.99 -
Hinson Racing Ignition Cover Suzuki RM-Z450 2009-2025 IC430
HINSON RACING
$399.99HINSON RACING Ignition Cover RMZ450 IC430 Elevate your RMZ450's performance with the HINSON RACING Ignition Cover, designed to withstand the toughest conditions. Crafted from high-quality T-6 aircraft-grade aluminum, this ignition cover not only enhances...09401362- SKU:
- 09401362
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- MATERIAL:
- T-6 ALUMINUM
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$399.99Qty in Cart: 0Quantity:Price:$399.99Subtotal: -
Hinson Racing Clutch Cover KTM 85 SX 2006-2017 C249
HINSON RACING
$159.99HINSON RACING Clutch Cover for KTM 85 C249 Enhance your bike's performance with the HINSON RACING Clutch Cover, designed specifically for the KTM 85 C249. This premium cover not only improves heat dissipation but also offers superior strength compared to...09401473- SKU:
- 09401473
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- MATERIAL:
- T-6 ALUMINUM
- PRODUCT NAME:
- COVER
- MODEL:
- BILLETPROOF
- UNITS:
- EACH
$159.99 -
Hinson Racing Clutch Cover Kawasaki KX125 2003-2008 C195
HINSON RACING
$159.99HINSON RACING Clutch Cover for KX125 C195 Enhance your KX125's performance with the HINSON RACING Clutch Cover, expertly designed to improve heat dissipation and durability. This race-proven component is crafted in the U.S.A., ensuring superior quality...09401474- SKU:
- 09401474
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- COLOR/FINISH:
- BLACK
- MODEL:
- BILLETPROOF
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- COVER
- TYPE:
- CLUTCH
- MATERIAL:
- T-6 ALUMINUM
$159.99
