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!
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- Price
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MOOSE OFFROAD Oil Filter Cover - Husqvarna/KTM T14-5302GB
MOOSE OFFROAD
$32.95If you're running a Husqvarna or KTM dirt bike, engine heat management directly impacts reliability and performance longevity. The MOOSE OFFROAD Oil Filter Cover replaces the stock plastic unit with a precision-engineered aluminum solution that actively...09402009- SKU:
- 09402009
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
$32.95Qty in Cart: 0Quantity:Price:$32.95Subtotal: -
REKLUSE Clutch Cover - Gas Gas/Husqvarna/KTM RMS-0413065
REKLUSE
$189.00Stock clutch covers fail under the rigors of aggressive riding—impacts with rocks, logs, and boot contact compromise both protection and oil containment. The REKLUSE Clutch Cover replaces this vulnerability with a robust, purpose-built design engineered...09402216- SKU:
- 09402216
- Availability:
- Ships Same Business Day
- Weight:
- 0.83 LBS
$189.00 -
Hinson Racing Clutch Cover Kawasaki KX450 2021-2023 C663-2102
HINSON RACING
$169.99Stock clutch covers on the KX450 will warp and lose efficiency under sustained track temperatures. This Hinson Racing cover dissipates heat more effectively, keeping your clutch engagement consistent lap after lap. Built from billet T-6 aircraft aluminum...09402038- SKU:
- 09402038
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
$169.99 -
Rekluse Clutch Cover Gas Gas EC 450F 2025 RMS-385
REKLUSE
$189.00The stock clutch cover on your Gas Gas EC 450F won't hold up to the punishment of serious off-road riding—inadequate oil capacity means marginal cooling under load, and OEM aluminum lacks the impact resistance you need in rocky terrain. The Rekluse...09402039- SKU:
- 09402039
- Availability:
- Ships Same Business Day
- Weight:
- 0.66 LBS
$189.00 -
MOOSE RACING Water Pump Cover - Black - Gas Gas/Husqvarna I04-5259B
MOOSE RACING
$88.95If you're running a Gas Gas or Husqvarna machine, the factory water pump cover is vulnerable to damage and heat stress during aggressive riding. This MOOSE Racing billet aluminum cover replaces that weak point with a precision-machined component that...09402049- SKU:
- 09402049
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$88.95 -
MOOSE RACING Clutch Cover - Kawasaki D70-2474MB
MOOSE RACING
$179.95Your OEM clutch cover is a thermal bottleneck—heat buildup directly compromises clutch engagement and longevity. The MOOSE RACING clutch cover replaces this weak point with aircraft-grade aluminum construction that runs cooler and outlasts the factory...09402037- SKU:
- 09402037
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
$179.95 -
Pro Circuit Water Pump Cover with Impeller for Kawasaki KX250 2021-2024 WPK21250
PRO CIRCUIT
$239.95Keep your KX250's cooling system operating at peak efficiency with a precision-engineered water pump cover that delivers measurable gains in water flow and thermal management. Factory pump covers often create unnecessary hydraulic resistance and leave...09402061- SKU:
- 09402061
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
$239.95 -
Rekluse Clutch Cover Honda CRF450R 2019-2025 RMS-0401002
REKLUSE
$189.00The stock Honda CRF450R clutch cover isn't designed to handle the punishment of serious off-road riding. This Rekluse billet aluminum replacement delivers increased oil capacity for superior lubrication under sustained high-RPM operation, while its...09402050- SKU:
- 09402050
- Availability:
- Ships Same Business Day
- Weight:
- 1.01 LBS
$189.00 -
Rekluse Clutch Cover Honda CRF450R 2019-2026 RMS-0401002
REKLUSE
$189.00The stock clutch cover on your Honda CRF450R isn't engineered to handle sustained high-performance riding or aggressive off-road conditions—impacts, heat cycling, and inadequate lubrication can compromise clutch reliability when you need it most. This...09402103- SKU:
- 09402103
- Availability:
- Ships Same Business Day
- Weight:
- 0.89 LBS
$189.00 -
MOOSE RACING Water Pump Cover - Black - KTM I04-5260B
MOOSE RACING
$99.95Stock water pump covers crack under thermal stress and vibration, leaving your cooling system vulnerable to failure during peak performance runs. This billet aluminum replacement delivers the durability of a racing-grade component while maintaining...09402048- SKU:
- 09402048
- Availability:
- Ships Same Business Day
- Weight:
- 0.37 LBS
$99.95 -
MOOSE RACING TPS Cover - Gas Gas/Husqvarna/KTM T21-5801B
MOOSE RACING
$39.95The throttle position sensor is a critical component that directly affects throttle response and engine management on 2-stroke dirt bikes. Moose Racing's aluminum TPS cover replaces the fragile OEM plastic with a protective T6061-T6 aluminum design,...09402047- SKU:
- 09402047
- Availability:
- Ships Same Business Day
- Weight:
- 0.22 LBS
$39.95 -
MOOSE RACING Throttle Body Guard - Gas Gas/Husqvarna/KTM 27-1323
MOOSE RACING
$42.95Throttle body connectors are vulnerable to damage during aggressive riding, crashes, and maintenance—a single disconnected wire can leave you stranded or force an expensive shop visit. The MOOSE RACING Throttle Body Guard shields all electrical...09402104- SKU:
- 09402104
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$42.95 -
ACERBIS X-Power Kit - Blue - Husqvarna/KTM 2977605226
ACERBIS
$67.95Off-road riding exposes your crankcase and ignition/clutch covers to constant abuse from rocks, roots, mud, and impacts that compromise both protection and longevity. The ACERBIS X-Power Kit shields these critical engine components with durable...05052351- SKU:
- 05052351
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
$67.95 -
ACERBIS X-Power Kit - Blue - Husqvarna/KTM 2977600003
ACERBIS
$67.95Protect your engine's most vulnerable components from the constant punishment of off-road riding. The ACERBIS X-Power Kit shields your crankcase, clutch cover, water pump, and ignition cover with precision-engineered guards that absorb impacts from...05052352- SKU:
- 05052352
- Availability:
- Ships Same Business Day
- Weight:
- 1.15 LBS
$67.95 -
ACERBIS X-Power Kit - Black - Husqvarna/KTM 2977600001
ACERBIS
$76.95Off-road riding exposes your engine's critical components to constant assault from flying debris, mud, and impact hazards. The ACERBIS X-Power Kit shields your motor's most vulnerable areas—crankcase, clutch cover, water pump, and ignition...05052353- SKU:
- 05052353
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
$76.95 -
ACERBIS X-Power Kit - Black - Gas Gas/Husqvarna/KTM 2979430001
ACERBIS
$76.95Off-road riding exposes your engine to constant threats—flying debris, mud, water, and impacts that can compromise critical components. The ACERBIS X-Power Kit delivers dual-sided protection for your crankcase and ignition/clutch covers, safeguarding...05052354- SKU:
- 05052354
- Availability:
- Ships Same Business Day
- Weight:
- 1.16 LBS
$76.95 -
ACERBIS X-Power Kit - Orange - Gas Gas/Husqvarna/KTM 2979435226
ACERBIS
$76.95Dirt bikes demand protection from the constant assault of mud, rocks, and debris—especially your crankcase and ignition covers, which take the most punishment. The ACERBIS X-Power Kit shields both sides of your motor with durable, heat-resistant guards...05052356- SKU:
- 05052356
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
$76.95 -
ACERBIS X-Power Kit - Black - Yamaha 2976170001
ACERBIS
$76.95Off-road riding exposes your engine's most vulnerable components to constant punishment from impacts, flying debris, and mud buildup. The ACERBIS X-Power Kit shields your crankcase, clutch cover, and ignition cover from damage that can compromise...05052357- SKU:
- 05052357
- Availability:
- Ships Same Business Day
- Weight:
- 1.50 LBS
$76.95 -
Rekluse Clutch Cover Yamaha YZ450F 2023-2025 RMS-0407176
REKLUSE
$189.00Stock clutch covers are vulnerable to impact damage on technical terrain, leaving your engine exposed and your cooling compromised. The Rekluse billet aluminum clutch cover delivers the protection and oil capacity your YZ450F needs for aggressive riding,...09402115- SKU:
- 09402115
- Availability:
- Ships Same Business Day
- Weight:
- 0.93 LBS
$189.00 -
Hinson Racing Clutch Cover Yamaha YZ450F 2023-2024 C616-2301
HINSON RACING
$189.99Sustained heat buildup in the clutch case compromises engagement reliability and component lifespan—especially under the demands of competitive riding. This Hinson Racing clutch cover addresses thermal management directly with precision engineering and...09402114- SKU:
- 09402114
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
$189.99Qty in Cart: 0Quantity:Price:$189.99Subtotal:
