Dirt Bike Engine Covers
Dirt Bike Engine Covers & Clutch Covers for Kawasaki, Honda & Yamaha at JJ Motorsports
Protect your dirt bike's engine internals and improve durability with premium engine covers and clutch covers from JJ Motorsports, precision-machined for perfect fitment, enhanced heat dissipation, and superior impact resistance in motocross, enduro, and trail riding. Our selection includes billet aluminum clutch covers, water pump covers with impellers, and OEM-style replacements designed to safeguard against rocks, debris, and crashes while maintaining oil flow and cooling efficiency. Compatible with top models like Kawasaki KX250F/KX450F, Honda CRF, Yamaha YZ/WR, and more, these high-quality components from trusted brands ensure leak-free sealing, reduced weight, and race-ready performance in dusty, high-speed conditions. Upgrade to billet covers for ultimate strength or impeller-equipped designs for better water circulation—perfect for preventing overheating and extending engine life on every aggressive ride.
Shop brands like Hinson Racing, Moose Racing, and Pro Circuit for race-proven quality. Explore related categories such as dirt bike engine for pistons and gaskets or dirt bike clutch for plates and hubs.
Top Dirt Bike Engine Covers
- Hinson Racing Clutch Cover Kawasaki C663-2102 – Billet aluminum clutch cover for Kawasaki KX250F 2009-2016; hard anodized for durability, improves oil flow, and protects internals from damage.
- Moose Racing Clutch Cover Kawasaki D70-2474MB – Black anodized aluminum clutch cover for Kawasaki KX450F 2009-2018; lightweight design with enhanced sealing for off-road protection.
- Pro Circuit Water Pump Cover with Impeller Kawasaki WPK21250 – Billet water pump cover and impeller kit for Kawasaki KX250F 2021-2023; increases coolant flow by 30% for better engine cooling.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
BOYESEN Clutch Cover - Black - KTM/Husaberg CC-45B
BOYESEN
$95.95A lightweight clutch cover isn't just about aesthetics—it's about reducing unsprung weight and minimizing heat retention in high-demand racing conditions. The Boyesen CC-45B is individually surfaced for a precision fit that eliminates the leak points...09401263- SKU:
- 09401263
- Availability:
- Ships Same Business Day
- Weight:
- 0.86 LBS
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$95.95Qty in Cart: 0Quantity:Price:$95.95Subtotal: -
BOYESEN Clutch Cover - Orange - KTM CC-44AO
BOYESEN
$105.95A lightweight clutch cover is essential for reducing rotating mass and improving engine responsiveness, especially in competitive racing environments where every gram matters. The BOYESEN CC-44AO delivers factory-grade protection without the weight...09401233- SKU:
- 09401233
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- ORANGE
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- STREET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$105.95 -
BOYESEN Clutch Cover - Black - KTM CC-44AB
BOYESEN
$95.95A clutch cover isn't just cosmetic—it's your first line of defense against impact, contamination, and heat damage. The BOYESEN Lightweight Clutch Cover delivers race-proven protection without the weight penalty, featuring precision engineering that...09401231- SKU:
- 09401231
- Availability:
- Ships Same Business Day
- Weight:
- 0.88 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- POWDER-COATED
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$95.95Qty in Cart: 0Quantity:Price:$95.95Subtotal: -
BOYESEN Clutch Cover - Orange - KTM CC-41O
BOYESEN
$105.95A clutch cover does more than protect—it's a visible statement of your build's quality and attention to detail. The BOYESEN Orange Clutch Cover combines lightweight construction with precision engineering to eliminate oil weepage while keeping your KTM...09401230- SKU:
- 09401230
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- ORANGE
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$105.95Qty in Cart: 0Quantity:Price:$105.95Subtotal: -
BOYESEN Clutch Cover - Gold - KTM CC-41M
BOYESEN
$95.95A factory-style clutch cover that combines lightweight construction with race-proven durability—essential if you're serious about reducing unsprung weight without sacrificing protection. The individually surfaced design guarantees a leak-free seal right...09401229- SKU:
- 09401229
- Availability:
- Ships Same Business Day
- Weight:
- 0.83 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- MAGNESIUM
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- STREET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$95.95 -
BOYESEN Clutch Cover - Black CC-41B
BOYESEN
$95.95A clutch cover does more than protect—it's a visible statement of your commitment to quality and performance. The BOYESEN CC-41B delivers a lightweight design that reduces rotating mass while maintaining the durability your engine demands, backed by...09401228- SKU:
- 09401228
- Availability:
- Ships Same Business Day
- Weight:
- 0.82 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
$95.95 -
BOYESEN Ignition Cover - Gold - KTM 65 SC-40AM
BOYESEN
$87.95The stock ignition cover on your KTM 65 is vulnerable to the elements—dirt, water, and debris will eventually compromise its seal and appearance. The BOYESEN Factory Ignition Cover replaces that weak point with a precision-cast aluminum component that...09401226- SKU:
- 09401226
- Availability:
- Ships Same Business Day
- Weight:
- 0.57 LBS
- COLOR/FINISH:
- MAGNESIUM
- MATERIAL:
- ALUMINUM
- MODEL:
- FACTORY RACING
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION
- COLOR/FINISH:
- POWDER-COATED
- UNITS:
- EACH
$87.95Qty in Cart: 0Quantity:Price:$87.95Subtotal: -
BOYESEN Clutch Cover - Gold CC-30M
BOYESEN
$95.95A clutch cover does more than protect—it's a visible statement of your commitment to quality and performance. The BOYESEN Lightweight Clutch Cover CC-30M delivers factory-grade durability without unnecessary weight, helping you shed rotational mass where...09401125- SKU:
- 09401125
- Availability:
- Ships Same Business Day
- Weight:
- 0.68 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- COLOR/FINISH:
- MAGNESIUM
- PRODUCT NAME:
- COVER
$95.95Qty in Cart: 0Quantity:Price:$95.95Subtotal: -
BOYESEN Clutch Cover - Black CC-30B
BOYESEN
$95.95A clutch cover does more than protect your engine—it's a visible statement of your commitment to quality and performance. The BOYESEN CC-30B delivers lightweight construction without compromise, shedding unnecessary weight while maintaining the...09401124- SKU:
- 09401124
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$95.95Qty in Cart: 0Quantity:Price:$95.95Subtotal: -
BOYESEN Clutch Cover - Gold CC-26AM
BOYESEN
$95.95A clutch cover isn't just cosmetic—it's your first line of defense against premature wear, contamination, and catastrophic failure. The BOYESEN Clutch Cover CC-26AM delivers lightweight construction without compromising durability, making it the choice...09401123- SKU:
- 09401123
- Availability:
- Ships Same Business Day
- Weight:
- 0.97 LBS
- COLOR/FINISH:
- MAGNESIUM
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$95.95Qty in Cart: 0Quantity:Price:$95.95Subtotal: -
BOYESEN Clutch Cover - Black CC-26AB
BOYESEN
$95.95Factory clutch covers take a beating on the track and street—exposure to heat cycles, debris, and constant vibration degrades stock designs and creates leak points that compromise engine reliability. The BOYESEN Clutch Cover CC-26AB delivers lightweight...09401122- SKU:
- 09401122
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MODEL:
- FACTORY RACING
- TYPE:
- CLUTCH
- COLOR/FINISH:
- POWDER-COATED
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- OFF-ROAD
$95.95 -
BOYESEN Clutch Cover - Gold CC-18M
BOYESEN
$95.95A clutch cover does more than just protect—it's a visible statement of your commitment to precision engineering and race-proven durability. The BOYESEN Clutch Cover CC-18M delivers lightweight construction without sacrificing the protective seal your...09401120- SKU:
- 09401120
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- TYPE:
- CLUTCH
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- COLOR/FINISH:
- MAGNESIUM
$95.95 -
BOYESEN Clutch Cover - Black CC-18B
BOYESEN
$95.95A quality clutch cover does more than protect—it's the foundation for a reliable, leak-free clutch system that won't let you down on track or trail. The BOYESEN CC-18B delivers lightweight construction without sacrificing durability, so you get the...09401119- SKU:
- 09401119
- Availability:
- Ships Same Business Day
- Weight:
- 0.82 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- ATV
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$95.95 -
BOYESEN Clutch Cover - YZ450F/X CC-38CM
BOYESEN
$95.95A factory-spec clutch cover that combines lightweight construction with race-proven durability—exactly what you need to reduce rotating mass while maintaining reliable protection on the track or trail. The individually surfaced design guarantees a...09400972- SKU:
- 09400972
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- UNITS:
- EACH
- COLOR/FINISH:
- MAGNESIUM
- COLOR/FINISH:
- POWDER-COATED
- PRODUCT NAME:
- COVER
$95.95Qty in Cart: 0Quantity:Price:$95.95Subtotal: -
BOYESEN Clutch Cover - YZ450F/X CC-38CB
BOYESEN
$95.95A factory-spec clutch cover that delivers the lightweight advantage you need on the track without compromising protection or longevity. Boyesen's individually surfaced design eliminates the fitment guesswork—you get a perfect seal right out of the box...09400971- SKU:
- 09400971
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- TYPE:
- CLUTCH
- UNITS:
- EACH
- PRODUCT NAME:
- COVER
$95.95Qty in Cart: 0Quantity:Price:$95.95Subtotal: -
BOYESEN Clutch Cover - CRF250R CC-07AM
BOYESEN
$117.95If you're running a CRF250R in competition or pushing hard on the track, your clutch cover takes a beating from heat, debris, and vibration. The BOYESEN Clutch Cover CC-07AM replaces that worn or damaged stock cover with a lightweight, purpose-built...09400969- SKU:
- 09400969
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- COLOR/FINISH:
- MAGNESIUM
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- TYPE:
- CLUTCH
- UNITS:
- EACH
- PRODUCT NAME:
- COVER
$117.95 -
BOYESEN Clutch Cover - CRF250R CC-07AB
BOYESEN
$117.95A factory-spec clutch cover that combines lightweight construction with race-proven durability. Whether you're logging track miles or competing in regional events, the BOYESEN CC-07AB delivers the protection your CRF250R needs without the weight penalty...09400968- SKU:
- 09400968
- Availability:
- Ships Same Business Day
- Weight:
- 0.81 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$117.95 -
BOYESEN Clutch Cover - Gold - KTM CC-42M
BOYESEN
$95.95A lightweight clutch cover is essential for reducing unsprung mass and improving your KTM's power-to-weight ratio—every gram counts in competitive racing. The Boyesen CC-42M combines race-proven design with meticulous manufacturing to deliver reliable...09400706- SKU:
- 09400706
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- COLOR/FINISH:
- MAGNESIUM
- RIDING STYLE:
- OFF-ROAD
- MODEL:
- FACTORY RACING
- TYPE:
- CLUTCH
- UNITS:
- EACH
- COLOR/FINISH:
- POWDER-COATED
- PRODUCT NAME:
- COVER
$95.95 -
BOYESEN Clutch Cover - Black - KTM CC-42B
BOYESEN
$95.95Factory clutch covers are engineered for durability in demanding race environments, and the BOYESEN CC-42B delivers lightweight protection without compromising reliability. If you're running hard on track or trail, you need a cover that seals tight and...09400705- SKU:
- 09400705
- Availability:
- Ships Same Business Day
- Weight:
- 0.96 LBS
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- TYPE:
- CLUTCH
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- COVER
$95.95Qty in Cart: 0Quantity:Price:$95.95Subtotal: -
BOYESEN Ignition Cover - Black SC-42B
BOYESEN
$87.95Engine covers aren't just cosmetic—they're critical protection against dirt, water, and debris that can compromise internal engine components. The Boyesen SC-42B Factory Ignition Cover combines OEM-grade engineering with superior materials and...09400702- SKU:
- 09400702
- Availability:
- Ships Same Business Day
- Weight:
- 0.66 LBS
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- MATERIAL:
- ALUMINUM
$87.95
