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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Hinson Racing Clutch Cover 2002-2022 Yamaha YZ85 C159
HINSON RACING
$159.99Upgrade 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...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
$159.99Qty in Cart: 0Quantity:Price:$159.99Subtotal: -
Hinson Racing Clutch Cover KTM 85 SX 2018-2024 C477
HINSON RACING
$169.99The 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...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
$169.99Qty in Cart: 0Quantity:Price:$169.99Subtotal: -
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...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
$159.99Elevate 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...09401256- SKU:
- 09401256
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 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
$169.99Elevate 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...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
$169.99Qty in Cart: 0Quantity:Price:$169.99Subtotal: -
Hinson Racing Clutch Cover Yamaha YZ125 2005-2022 C240
HINSON RACING
$159.99Elevate 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...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
$159.99Qty in Cart: 0Quantity:Price:$159.99Subtotal: -
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...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 Clutch Cover KTM 85 SX 2006-2017 C249
HINSON RACING
$159.99Enhance 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...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
$159.99Qty in Cart: 0Quantity:Price:$159.99Subtotal: -
Hinson Racing Clutch Cover Kawasaki KX125 2003-2008 C195
HINSON RACING
$159.99Enhance 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...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 -
Hinson Racing Clutch Cover Kawasaki KX450F 2016-2018 C463
HINSON RACING
$169.99Enhance your riding experience with the Hinson Racing Clutch Cover, specifically designed for the KX450F. This high-performance cover not only improves heat dissipation but also offers superior...09401475- SKU:
- 09401475
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- MATERIAL:
- T-6 ALUMINUM
- MODEL:
- BILLETPROOF
$169.99Qty in Cart: 0Quantity:Price:$169.99Subtotal: -
Hinson Racing Clutch Cover KTM 250 SX 2013-2016 C500
HINSON RACING
$169.99Elevate your KTM C500's performance with the HINSON RACING Clutch Cover, designed for optimal heat dissipation and enhanced durability. This race-proven component not only outperforms stock covers...09401476- SKU:
- 09401476
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- COLOR/FINISH:
- BLACK
- MODEL:
- BILLETPROOF
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- COVER
- TYPE:
- CLUTCH
- MATERIAL:
- T-6 ALUMINUM
$169.99Qty in Cart: 0Quantity:Price:$169.99Subtotal: -
Hinson Racing Clutch Cover KTM 450 SX-F 2016-2022 C654
HINSON RACING
$169.99Upgrade your bike's performance with the HINSON RACING Clutch Cover specifically designed for the KTM 450 C654. This premium clutch cover not only enhances heat dissipation but also offers superior...09401477- SKU:
- 09401477
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- TYPE:
- CLUTCH
- PRODUCT NAME:
- COVER
- COLOR/FINISH:
- BLACK
- MODEL:
- BILLETPROOF
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MATERIAL:
- T-6 ALUMINUM
- RIDING STYLE:
- STREET
$169.99Qty in Cart: 0Quantity:Price:$169.99Subtotal: -
Hinson Racing Clutch Cover KTM 250 XC-F 2016-2022 C677
HINSON RACING
$169.99Enhance your KTM's performance with the Hinson Racing Clutch Cover C677, engineered for superior heat management and durability. This race-proven component is crafted in the U.S.A., ensuring...09401478- SKU:
- 09401478
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- BILLETPROOF
- UNITS:
- EACH
- MATERIAL:
- T-6 ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
$169.99 -
Hinson Racing Clutch Cover for Honda CRF450R 2017-2024 C789-0816
HINSON RACING
$199.99Elevate your performance with the HINSON RACING Clutch Cover for the CRF450R, designed to enhance durability and efficiency on the track. Crafted from premium T-6 aircraft-quality aluminum, this...09401591- SKU:
- 09401591
- Availability:
- Ships Same Business Day
- Weight:
- 0.91 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- MATERIAL:
- T-6 ALUMINUM
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$199.99 -
Hinson Racing Clutch Cover KTM 250 SX 2017-2018 C600
HINSON RACING
$169.99Upgrade your ride with the HINSON RACING Clutch Cover, specifically designed for KTM 250/300 models. This high-performance component enhances heat dissipation and durability, ensuring your bike...09401592- SKU:
- 09401592
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- MATERIAL:
- T-6 ALUMINUM
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$169.99Qty in Cart: 0Quantity:Price:$169.99Subtotal: -
Hinson Racing Oil Filler Cap Kawasaki KX250F 2004-2017 OC217
HINSON RACING
$19.99Upgrade your ATV's performance and aesthetics with the HINSON RACING Oil Filler Cap. Crafted from high-quality T-6 aluminum, this cap not only enhances durability but also delivers a sleek,...09500616- SKU:
- 09500616
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- COLOR/FINISH:
- POLISHED
- TYPE:
- OIL FILLER
- UNITS:
- EACH
- PRODUCT NAME:
- CAP
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
$19.99 -
Rekluse Clutch Cover KTM 250 EXC 2017-2023 RMS-396
REKLUSE
$229.00Experience top-tier performance and unmatched durability with the REKLUSE Clutch Cover, specifically designed for HUSQVARNA and KTM 250/300 models. Crafted from high-quality billet aluminum, this...09401822- SKU:
- 09401822
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- COVER
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
$229.00 -
Hiflofiltro Oil Filter for Aprilia RXV 550 2006-2009 HF563
HIFLOFILTRO
$5.79Experience superior engine protection with the HIFLOFILTRO Oil Filter HF563. Designed for optimal performance, this premium oil filter ensures that your engine runs smoothly and efficiently,...07120212- SKU:
- 07120212
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- COLOR/FINISH:
- YELLOW
- PRODUCT NAME:
- OIL FILTER
- RIDING STYLE:
- OFF-ROAD
- WIDTH METRIC:
- 45 MM
- STYLE:
- PREMIUM
- UNITS:
- EACH
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- CARTRIDGE
- BASE COLOR:
- YELLOW
- LENGTH METRIC:
- 49 MM
$5.79 -
Hiflofiltro Oil Filter Aprilia Scarabeo 125 200 2007-2015 HF186
HIFLOFILTRO
$4.76Experience superior engine protection with the HIFLOFILTRO Oil Filter HF186. Designed for optimal performance, this premium oil filter ensures that your engine runs smoothly and efficiently. Trust in...07120300- SKU:
- 07120300
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- RIDING STYLE:
- STREET
- STYLE:
- PREMIUM
- BASE COLOR:
- BLACK
- UNITS:
- EACH
- WIDTH METRIC:
- 41 MM
- COLOR/FINISH:
- BLACK
- LENGTH METRIC:
- 35 MM
- PRODUCT NAME:
- OIL FILTER
- TYPE:
- CARTRIDGE
$4.76 -
VERTEX Piston Kit 23870B
VERTEX
$353.95A piston kit is the foundation of engine reliability and performance—whether you're rebuilding after wear or upgrading for increased displacement and power. The VERTEX Piston Kit 23870B delivers the...09103338- SKU:
- 09103338
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- FORGED HIGH COMPRESSION
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 14.5:1
- CYLINDER DIAMETER METRIC:
- 78.00 MM
- DISPLACEMENT:
- 250 CC
- PRODUCT NAME:
- PISTON KIT
- RIDING STYLE:
- STREET
- PISTON DIAMETER METRIC:
- 77.97 MM
- ENGINE TYPE:
- 4-STROKE
- PISTON MATERIAL:
- FORGED 2618 ALUMINUM
- SKIRT COATING:
- MOLYBDENUM DISULPHITE
$353.95
