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
-
On Sale
Pro Circuit Clutch Cover Kawasaki KX250F 2004-2008 CCK04250
PRO CIRCUIT
MSRP: $173.95Now: $156.56Was: $173.95The Pro Circuit Clutch Cover combines aerospace-grade durability with thermal management—critical for maintaining consistent clutch engagement during extended high-RPM sessions. T-6 aircraft aluminum...09400467- SKU:
- 09400467
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- T-6 ALUMINUM
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
MSRP: $173.95Now: $156.56Was: $173.95Qty in Cart: 0Quantity:Price:MSRP: $173.95Now: $156.56Was: $173.95Subtotal: -
On Sale
Pro Circuit Water Pump Cover with Impeller for Kawasaki KX250 2019-2020 WPK17250
PRO CIRCUIT
MSRP: $239.95Now: $215.96Was: $239.95Engine cooling directly impacts your KX250's reliability and peak performance—especially under sustained high-RPM racing conditions. A stock water pump cover often allows cavitation and inefficient...09401611- SKU:
- 09401611
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- COLOR/FINISH:
- MACHINED
- PRODUCT NAME:
- COVER
- UNITS:
- SET
- TYPE:
- WATER PUMP
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- OFF-ROAD
MSRP: $239.95Now: $215.96Was: $239.95 -
MOOSE RACING Clutch Cover - Yamaha 125 D70-4422MB
MOOSE RACING
$157.95OEM clutch covers wear down under sustained racing conditions, compromising heat dissipation and structural integrity when you need reliability most. The MOOSE RACING Clutch Cover upgrades your...09401862- SKU:
- 09401862
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$157.95 -
MOOSE RACING Clutch Cover - Yamaha 250 D70-4424MB
MOOSE RACING
$157.95The stock clutch cover on your Yamaha 250 is adequate for casual riding, but if you're serious about reliability and performance—whether you're hitting the track or pushing hard on the trail—this...09401863- SKU:
- 09401863
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- TYPE:
- CLUTCH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- COVER
$157.95 -
On Sale
MOOSE RACING Clutch Cover - Beta D70-5435MB
MOOSE RACING
MSRP: $204.95Now: $131.00Was: $204.95A clutch cover failure can sideline your bike mid-race or ride. The MOOSE RACING Clutch Cover elevates your drivetrain reliability with aircraft-grade aluminum construction that outperforms OEM...09401853- SKU:
- 09401853
- Availability:
- Ships Same Business Day
- Weight:
- 2.12 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- COVER
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
MSRP: $204.95Now: $131.00Was: $204.95 -
MOOSE RACING Clutch Cover - KTM/Husqvarna D70-5428MB
MOOSE RACING
$159.95A stock clutch cover is often your bike's first casualty under sustained performance riding. The MOOSE RACING clutch cover upgrades you to aircraft-quality aluminum that outperforms OEM...09401854- SKU:
- 09401854
- Availability:
- Ships Same Business Day
- Weight:
- 0.75 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$159.95 -
MOOSE RACING Clutch Cover - Suzuki 450Z D70-3422MB
MOOSE RACING
$157.95A stock clutch cover can only handle so much abuse before it becomes a liability. The MOOSE RACING Clutch Cover for Suzuki 450Z upgrades you to aircraft-grade aluminum construction that outperforms...09401861- SKU:
- 09401861
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- TYPE:
- CLUTCH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$157.95 -
MOOSE RACING Clutch Cover - Honda D70-1426MB
MOOSE RACING
$159.95A OEM clutch cover will eventually fail under sustained track temperatures and aggressive riding conditions. The MOOSE RACING Clutch Cover upgrades you to aircraft-grade aluminum construction that...09401851- SKU:
- 09401851
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$159.95 -
MOOSE RACING Clutch Cover - KTM/Husqvarna D70-5429MB
MOOSE RACING
$159.95Your stock clutch cover is a thermal bottleneck—under sustained racing conditions, heat buildup accelerates wear and compromises engagement consistency. The MOOSE RACING Clutch Cover replaces that...09401855- SKU:
- 09401855
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$159.95 -
MOOSE RACING Clutch Cover - Yamaha 250F D70-4425MB
MOOSE RACING
$157.95A clutch cover takes constant abuse on the track—heat cycling, impacts, and vibration all conspire to crack or warp the OEM unit. The MOOSE RACING Clutch Cover replaces that weak link with...09401864- SKU:
- 09401864
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- TYPE:
- CLUTCH
- PRODUCT NAME:
- COVER
$157.95 -
MOOSE RACING Ignition Cover - KTM/Husqvarna D70-5476MB
MOOSE RACING
$164.95Your stock ignition cover is a thermal weak point—heat buildup degrades performance and shortens component lifespan. The MOOSE RACING D70-5476MB replaces it with aircraft-grade aluminum engineered...09401870- SKU:
- 09401870
- Availability:
- Ships Same Business Day
- Weight:
- 0.77 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- BASE COLOR:
- BLACK
- UNITS:
- EACH
$164.95Qty in Cart: 0Quantity:Price:$164.95Subtotal: -
MOOSE RACING Ignition Cover - Kawasaki D70-2472MB
MOOSE RACING
$244.95The stock ignition cover on your Kawasaki can't match the thermal management and structural integrity of aircraft-grade aluminum. This MOOSE Racing cover dissipates heat more effectively than OEM...09401944- SKU:
- 09401944
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- PRODUCT NAME:
- COVER
- BASE COLOR:
- BLACK
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
$244.95Qty in Cart: 0Quantity:Price:$244.95Subtotal: -
MOOSE RACING Water Pump Cover - Black - KTM/Husqvarna I04-5251B
MOOSE RACING
$88.95Stock water pump covers on KTM and Husqvarna machines are vulnerable to impact damage and corrosion—especially in aggressive riding conditions. The MOOSE RACING Water Pump Cover replaces that weak...09401930- SKU:
- 09401930
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- UNITS:
- EACH
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
$88.95 -
MOOSE RACING Water Pump Cover - Black - KTM/Husqvarna I04-5252B
MOOSE RACING
$110.95Stock water pump covers on KTM and Husqvarna dirt bikes are cast aluminum—durable enough for street duty, but vulnerable to impact damage on the trail or track. The MOOSE RACING Water Pump Cover...09401931- SKU:
- 09401931
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$110.95 -
MOOSE RACING Water Pump Cover - Black - KTM/Husqvarna I04-5256B
MOOSE RACING
$84.95The stock cast water pump cover on your KTM or Husqvarna is vulnerable to impact damage and corrosion—especially if you're running hard in challenging terrain. The MOOSE RACING Water Pump Cover...09401932- SKU:
- 09401932
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- COVER
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- TYPE:
- WATER PUMP
$84.95 -
MOOSE RACING Clutch Cover - KTM/Husqvarna D70-5431MB
MOOSE RACING
$159.95A clutch cover failure mid-race or trail ride can leave you stranded. The MOOSE RACING Clutch Cover for KTM and Husqvarna models is engineered to withstand the demands of high-performance riding with...09401856- SKU:
- 09401856
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$159.95Qty in Cart: 0Quantity:Price:$159.95Subtotal: -
MOOSE RACING Ignition Cover - Yamaha 250 D70-4472MB
MOOSE RACING
$184.95Your stock ignition cover is vulnerable to impact damage and thermal stress—especially in competitive riding conditions. This MOOSE RACING cover replaces it with aircraft-grade aluminum construction...09401868- SKU:
- 09401868
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- BASE COLOR:
- BLACK
- UNITS:
- EACH
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- TYPE:
- IGNITION
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
$184.95 -
MOOSE RACING Ignition Cover - KTM D70-5471MB
MOOSE RACING
$219.95Your stock ignition cover is vulnerable to thermal stress and impact damage—especially under high-RPM conditions or aggressive riding. The MOOSE RACING Ignition Cover replaces weak OEM plastic with...09401869- SKU:
- 09401869
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION
- BASE COLOR:
- BLACK
- MATERIAL:
- ALUMINUM
$219.95 -
On Sale
MOOSE RACING Water Pump Cover - Black I04-5254B
MOOSE RACING
MSRP: $101.95Now: $65.00Was: $101.95The stock cast water pump cover on your engine is vulnerable to corrosion, impact damage, and premature failure—especially under racing conditions or extended use. The MOOSE RACING Water Pump Cover...09401933- SKU:
- 09401933
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- COVER
- TYPE:
- WATER PUMP
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
MSRP: $101.95Now: $65.00Was: $101.95 -
MOOSE RACING Oil Pump Cover - KTM/Husky T04-5101B
MOOSE RACING
$32.95Engine heat management directly impacts oil viscosity and overall engine longevity—especially in high-performance applications where stock components fall short. The MOOSE RACING Oil Pump Cover...09401936- SKU:
- 09401936
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- BASE FINISH:
- ANODIZED
- COLOR/FINISH:
- BLACK
- MATERIAL:
- 6061 T-6 ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- COVER
- COLOR/FINISH:
- ANODIZED
- BASE COLOR:
- BLACK
- COLOR/FINISH:
- MACHINED
- TYPE:
- OIL PUMP
- UNITS:
- EACH
$32.95
