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
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BOYESEN Ignition Cover - Black SC-41B
BOYESEN
$87.95Engine covers aren't just cosmetic—they're essential protection against the elements. The BOYESEN Ignition Cover keeps dirt, water, and debris out of your engine bay while maintaining a factory-correct appearance. Built from high-grade aluminum and...09400699- SKU:
- 09400699
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- ALUMINUM
- RIDING STYLE:
- STREET
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION
- COLOR/FINISH:
- POWDER-COATED
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$87.95 -
BOYESEN Ignition Cover - KTM 85/105 SC-46M
BOYESEN
$87.95A factory-quality ignition cover protects your engine's most vulnerable internal components from the elements—dirt, water, and debris that accelerate wear and corrosion. The BOYESEN SC-46M delivers OEM-level sealing and durability while improving the...09400697- SKU:
- 09400697
- Availability:
- Ships Same Business Day
- Weight:
- 0.58 LBS
- COLOR/FINISH:
- MAGNESIUM
- COLOR/FINISH:
- POWDER-COATED
- MATERIAL:
- ALUMINUM
- MODEL:
- FACTORY RACING
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION
$87.95 -
BOYESEN Ignition Cover - KTM 85/105 SC-46B
BOYESEN
$87.95The factory ignition cover protects your KTM's engine internals from the elements while delivering the professional appearance and durability of OEM components. Boyesen's aluminum construction withstands the demands of competitive riding and trail use...09400696- SKU:
- 09400696
- Availability:
- Ships Same Business Day
- Weight:
- 0.58 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- POWDER-COATED
- MATERIAL:
- ALUMINUM
- MODEL:
- FACTORY RACING
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$87.95Qty in Cart: 0Quantity:Price:$87.95Subtotal: -
BOYESEN Clutch Cover - KTM 85/105 CC-46M
BOYESEN
$95.95OEM clutch covers add unnecessary weight and restrict airflow when you need it most—the BOYESEN CC-46M replaces the stock cover with a precision-engineered alternative that cuts mass while improving cooling and aesthetics. Individually surfaced for a...09400694- SKU:
- 09400694
- Availability:
- Ships Same Business Day
- Weight:
- 0.58 LBS
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- UNITS:
- EACH
- COLOR/FINISH:
- MAGNESIUM
- PRODUCT NAME:
- COVER
$95.95Qty in Cart: 0Quantity:Price:$95.95Subtotal: -
BOYESEN Clutch Cover - KTM 85/105 CC-46B
BOYESEN
$95.95A factory-spec clutch cover that combines lightweight construction with proven durability—essential for KTM 85/105 riders who demand reliability without compromising performance. The individually surfaced design eliminates common leak points, while the...09400693- SKU:
- 09400693
- Availability:
- Ships Same Business Day
- Weight:
- 0.58 LBS
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
$95.95Qty in Cart: 0Quantity:Price:$95.95Subtotal: -
BOYESEN Clutch Cover - Gold CC-27AM
BOYESEN
$95.95If you're serious about reducing rotating mass and shaving weight off your engine, the BOYESEN Clutch Cover delivers the lightweight performance upgrade your bike needs without sacrificing durability. Factory-engineered precision ensures a perfect seal...09400683- SKU:
- 09400683
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- TYPE:
- CLUTCH
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- MAGNESIUM
$95.95 -
BOYESEN Clutch Cover - Black CC-27AB
BOYESEN
$95.95A clutch cover does more than protect your engine—it's a visual statement of your commitment to performance and precision. The BOYESEN Clutch Cover CC-27AB delivers race-grade protection with a factory-lightweight design that reduces rotating mass...09400682- SKU:
- 09400682
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- PRODUCT NAME:
- COVER
- TYPE:
- CLUTCH
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
$95.95 -
BOYESEN Clutch Cover - Gold - CRF450 CC-06XM
BOYESEN
$95.95Factory-spec clutch covers protect your engine's most critical component while shaving unnecessary weight—essential for racers and serious builders who demand precision fit and zero leakage. BOYESEN's individually surfaced design ensures a perfect seal...09400615- SKU:
- 09400615
- Availability:
- Ships Same Business Day
- Weight:
- 0.89 LBS
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- COLOR/FINISH:
- MAGNESIUM
$95.95 -
BOYESEN Clutch Cover - Black - CRF450 CC-06XB
BOYESEN
$95.95A clutch cover does more than protect—it defines your bike's visual identity while delivering the durability your engine demands. The BOYESEN Clutch Cover combines lightweight construction with precision engineering to reduce rotating mass without...09400614- SKU:
- 09400614
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- PRODUCT NAME:
- COVER
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- TYPE:
- CLUTCH
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- BLACK
$95.95Qty in Cart: 0Quantity:Price:$95.95Subtotal: -
BOYESEN Clutch Cover - Black - KTM 250 SX-F CC-44B
BOYESEN
$95.95A quality clutch cover does more than look the part—it protects a critical component from debris, impact, and weathering while keeping your bike lightweight. The BOYESEN Clutch Cover delivers factory-grade durability with a precision-fit design that...09400570- SKU:
- 09400570
- Availability:
- Ships Same Business Day
- Weight:
- 0.86 LBS
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$95.95Qty in Cart: 0Quantity:Price:$95.95Subtotal: -
BOYESEN Clutch Cover - Gold - CRF250X CC-07XM
BOYESEN
$95.95A quality clutch cover protects one of your bike's most critical components while contributing to the overall aesthetic of your build. The BOYESEN Gold Clutch Cover combines factory-level durability with a refined look that justifies its place on any...09400565- SKU:
- 09400565
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- COLOR/FINISH:
- MAGNESIUM
- COLOR/FINISH:
- POWDER-COATED
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$95.95 -
BOYESEN Clutch Cover - Black - CRF250X CC-07XB
BOYESEN
$95.95A factory clutch cover replacement needs to balance lightweight construction with durability—and the BOYESEN CC-07XB delivers both. The precision-surfaced design eliminates leaks while the powder-coated finish withstands harsh racing conditions and...09400564- SKU:
- 09400564
- Availability:
- Ships Same Business Day
- Weight:
- 0.64 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$95.95 -
BOYESEN Clutch Cover - Gold - Kawasaki/Suzuki CC-17M
BOYESEN
$95.95If you're serious about race performance, your clutch cover needs to match your commitment to lightweight efficiency and reliability. The BOYESEN Clutch Cover eliminates unnecessary weight while delivering the precision fit and durability required in...09400446- SKU:
- 09400446
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- COLOR/FINISH:
- MAGNESIUM
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$95.95 -
BOYESEN Clutch Cover - Gold - Kawasaki/Suzuki CC-17B
BOYESEN
$95.95If you're serious about reducing rotational mass and improving your bike's throttle response, a lightweight clutch cover is one of the easiest wins available. The BOYESEN CC-17B delivers factory-spec protection without the weight penalty, while its...09400445- SKU:
- 09400445
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- POWDER-COATED
- PRODUCT NAME:
- COVER
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- UNITS:
- EACH
$95.95 -
BOYESEN Clutch Cover - Gold - CRF250 CC-07M
BOYESEN
$95.95The BOYESEN Clutch Cover delivers both protection and visual impact, combining lightweight construction with race-ready aesthetics. Its precision-surfaced design ensures a leak-free seal that holds up through demanding track sessions and regular riding...09400443- SKU:
- 09400443
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- COLOR/FINISH:
- MAGNESIUM
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$95.95 -
BOYESEN Clutch Cover - Black - CRF250 CC-07B
BOYESEN
$95.95A clutch cover isn't just cosmetic—it's your first line of defense against impact, debris, and environmental damage during track sessions and trail riding. The BOYESEN CC-07B delivers lightweight factory-style protection without added rotational mass,...09400442- SKU:
- 09400442
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 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 - YZ125 CC-33M
BOYESEN
$95.95A lightweight clutch cover is essential for reducing unsprung weight and improving overall bike handling, especially in competitive YZ125 applications where every fraction of a pound matters. The Boyesen CC-33M delivers factory-grade protection without...09400396- SKU:
- 09400396
- Availability:
- Ships Same Business Day
- Weight:
- 0.68 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- MAGNESIUM
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$95.95Qty in Cart: 0Quantity:Price:$95.95Subtotal: -
BOYESEN Clutch Cover - Black - YZ125 CC-33B
BOYESEN
$95.95A clutch cover isn't just protection—it's a statement of maintenance standards and ride reliability. The BOYESEN CC-33B delivers factory-grade durability with a lightweight design that won't add rotational mass to your YZ125, while the precision-surfaced...09400395- SKU:
- 09400395
- Availability:
- Ships Same Business Day
- Weight:
- 1.19 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$95.95 -
BOYESEN Clutch Cover - Gold - YZ125 CC-31M
BOYESEN
$198.95A lightweight clutch cover isn't just about aesthetics—it reduces unsprung weight and heat retention while maintaining the durability your YZ125 demands in competition. The Boyesen CC-31M delivers factory-grade protection with a precision-surfaced design...09400393- SKU:
- 09400393
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- COLOR/FINISH:
- MAGNESIUM
- TYPE:
- CLUTCH
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
$198.95 -
BOYESEN Clutch Cover - Black - YZ125 CC-31B
BOYESEN
$198.95A clutch cover does more than protect—it's a visible statement of your commitment to race-ready precision. The Boyesen CC-31B combines lightweight construction with a factory-engineered fit that eliminates leaks and reduces rotational mass where it...09400392- SKU:
- 09400392
- Availability:
- Ships Same Business Day
- Weight:
- 0.86 LBS
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- MODEL:
- FACTORY RACING
- TYPE:
- CLUTCH
- COLOR/FINISH:
- POWDER-COATED
$198.95Qty in Cart: 0Quantity:Price:$198.95Subtotal:
