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
-
Rekluse Clutch Cover Husqvarna TC 450 2006-2010 RMS-356
REKLUSE
$229.00The stock clutch cover on your Husqvarna TC 450 is vulnerable to impact damage that can compromise oil containment and engine protection. This Rekluse billet aluminum replacement addresses that weakness while increasing oil capacity, giving you reliable...09401806- SKU:
- 09401806
- Availability:
- Ships Same Business Day
- Weight:
- 1.10 LBS
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- COVER
- TYPE:
- CLUTCH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- RIDING STYLE:
- STREET
$229.00 -
Rekluse Clutch Cover Honda CR250R 1992-2001 RMS-369
REKLUSE
$229.00The stock clutch cover on your CR250R limits oil capacity, compromising cooling and lubrication under sustained high-rpm riding. This billet aluminum Rekluse replacement increases oil volume for better thermal management while delivering the durability...09401809- SKU:
- 09401809
- Availability:
- Ships Same Business Day
- Weight:
- 0.90 LBS
- COLOR/FINISH:
- ANODIZED
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$229.00 -
Rekluse Clutch Cover Husqvarna FC 450 2016-2021 RMS-380
REKLUSE
$229.00Your clutch cover takes a beating on demanding terrain—dirt, rocks, water crossings, and constant vibration all conspire to compromise protection and performance. The Rekluse RMS-380 addresses this directly with a deeper oil capacity design that ensures...09401816- SKU:
- 09401816
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- COVER
$229.00 -
Rekluse Clutch Cover Husqvarna TE 250 2014-2016 RMS-386
REKLUSE
$229.00Trail riding puts serious stress on your clutch cover—rocks, logs, and impacts can crack or damage inferior designs, leaving you stranded. The Rekluse RMS-386 replaces that vulnerability with billet aluminum construction and a deeper design that...09401817- SKU:
- 09401817
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- TYPE:
- CLUTCH
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- COVER
$229.00 -
Rekluse Clutch Cover Honda CRF450R 2019-2024 RMS-0401002
REKLUSE
$0.00The stock clutch cover on your CRF450R can't handle the abuse of serious trail and race riding—rocks, logs, and hard impacts will eventually crack or dent it, compromising your bike's protection and appearance. The Rekluse billet aluminum clutch cover...9402050- SKU:
- 9402050
- Availability:
- Ships Same Business Day
- Weight:
- 16.00 LBS
- COLOR/FINISH:
- ANODIZED
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$0.00Qty in Cart: 0Quantity:Price:$0.00Subtotal: -
Rekluse Clutch Cover Honda CRF250R 2018-2022 RMS-0401101
REKLUSE
$0.00Trail riding demands a clutch cover that can absorb punishment without compromising engine protection or oil capacity. The Rekluse RMS-0401101 delivers both durability and functional improvement over stock, with a deeper design that maintains proper...9402103- SKU:
- 9402103
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- COLOR/FINISH:
- ANODIZED
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$0.00Qty in Cart: 0Quantity:Price:$0.00Subtotal: -
Pro Circuit Water Pump Cover with Impeller for Honda CRF450R 2019 WPH09450
PRO CIRCUIT
$239.95Your Honda CRF450R's engine cooling efficiency directly impacts reliability and sustained performance under demanding conditions. The Pro Circuit Water Pump Cover replaces a vulnerable OEM component with precision-engineered billet aluminum, reducing...09401180- SKU:
- 09401180
- Availability:
- Ships Same Business Day
- Weight:
- 0.36 LBS
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- MACHINED
- TYPE:
- WATER PUMP
- UNITS:
- SET
$239.95Qty in Cart: 0Quantity:Price:$239.95Subtotal: -
Pro Circuit Water Pump Cover with Impeller for 2004-2006 Suzuki RM-Z250 WPK04250
PRO CIRCUIT
$239.95Keep your RM-Z250's engine running at peak operating temperature with the PRO CIRCUIT Water Pump Cover—a CNC-machined upgrade that directly improves cooling efficiency and reliability under demanding racing conditions. The integrated impeller design...09400464- SKU:
- 09400464
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- COVER
- TYPE:
- WATER PUMP
- COLOR/FINISH:
- MACHINED
- UNITS:
- SET
$239.95Qty in Cart: 0Quantity:Price:$239.95Subtotal: -
MOOSE RACING Clutch Cover - Honda D70-1425MB
MOOSE RACING
$152.95Stock clutch covers are prone to thermal stress and premature wear in high-performance applications. The MOOSE RACING Clutch Cover upgrades you to aircraft-quality aluminum construction that outperforms OEM specifications in both durability and heat...09401852- SKU:
- 09401852
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- TYPE:
- CLUTCH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
$152.95Qty in Cart: 0Quantity:Price:$152.95Subtotal: -
MOOSE RACING Oil Pump Cover - KTM/Husky T04-5102B
MOOSE RACING
$32.95Engine oil management is critical to maintaining peak performance and longevity in high-stress racing applications. The stock oil pump cover on your KTM or Husqvarna can become a heat liability, restricting thermal dissipation and compromising oil...09401937- SKU:
- 09401937
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- BASE FINISH:
- ANODIZED
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- 6061 T-6 ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- BASE COLOR:
- BLACK
- COLOR/FINISH:
- MACHINED
- TYPE:
- OIL PUMP
- UNITS:
- EACH
$32.95Qty in Cart: 0Quantity:Price:$32.95Subtotal: -
MOOSE RACING Oil Filter Cover - Kawasaki T14-2301GB
MOOSE RACING
$32.95Your engine's oil system runs hotter under sustained track conditions, and standard plastic covers can't handle the thermal stress. The MOOSE RACING Oil Filter Cover replaces that weak point with precision-machined aluminum that actively dissipates heat...09401941- SKU:
- 09401941
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- COLOR/FINISH:
- ANODIZED
- PRODUCT NAME:
- COVER
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- BASE COLOR:
- BLACK
- BASE FINISH:
- ANODIZED
- COLOR/FINISH:
- MACHINED
- MATERIAL:
- 6061 T-6 ALUMINUM
- TYPE:
- OIL FILTER
$32.95Qty in Cart: 0Quantity:Price:$32.95Subtotal: -
MOOSE RACING Water Pump Cover - Black - Gas Gas I04-5255B
MOOSE RACING
$79.95Your stock water pump cover is vulnerable to damage from debris, impact, and thermal stress—especially under racing conditions. The MOOSE RACING Water Pump Cover upgrades you to a more durable aftermarket solution that maintains OEM compatibility while...09401934- SKU:
- 09401934
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- COVER
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- TYPE:
- WATER PUMP
$79.95Qty in Cart: 0Quantity:Price:$79.95Subtotal: -
MOOSE RACING Oil Filter Cover - Kawasaki T14-2300GB
MOOSE RACING
$32.95Keeping engine oil at optimal temperature is critical for consistent performance and longevity, especially during extended track sessions or high-RPM driving. The MOOSE RACING Oil Filter Cover replaces the factory plastic unit with a precision-engineered...09401940- SKU:
- 09401940
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BASE COLOR:
- BLACK
- COLOR/FINISH:
- MACHINED
- UNITS:
- EACH
- PRODUCT NAME:
- COVER
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- 6061 T-6 ALUMINUM
- TYPE:
- OIL FILTER
- BASE FINISH:
- ANODIZED
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
$32.95Qty in Cart: 0Quantity:Price:$32.95Subtotal: -
ACERBIS X-Power Cover Kit - Blue - Yamaha 2780680211
ACERBIS
$76.95Crankcase and ignition cover damage can sideline your bike mid-season—dirt ingestion, rock strikes, and UV degradation are real threats to engine longevity. The ACERBIS X-Power Cover Kit shields your vital engine components with durable, heat-resistant...09401894- SKU:
- 09401894
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- MATERIAL:
- PLASTIC
- PRODUCT NAME:
- COVER KIT
- MODEL:
- X-POWER
- PRODUCT NAME:
- COVER
- TYPE:
- ENGINE
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$76.95 -
Hinson Racing Ignition Cover Suzuki RM-Z450 2009-2025 IC430
HINSON RACING
$399.99Elevate your RMZ450's performance with the HINSON RACING Ignition Cover, designed to withstand the toughest conditions. Crafted from high-quality T-6 aircraft-grade aluminum, this ignition cover not only enhances durability but also optimizes heat...09401362- SKU:
- 09401362
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- MATERIAL:
- T-6 ALUMINUM
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$399.99Qty in Cart: 0Quantity:Price:$399.99Subtotal: -
BOYESEN Ignition Cover - Black - CR250 SC-02AB
BOYESEN
$87.95Factory Ignition Cover SC02AB Professional appearance enhances your bike's aesthetics. Seals effectively to protect the engine from dirt and water. Durable design outlasts standard stock covers. Constructed from premium-grade aluminum...SC02AB- SKU:
- SC02AB
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- POWDER-COATED
- MATERIAL:
- ALUMINUM
- MODEL:
- FACTORY RACING
- PRODUCT NAME:
- COVER
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION
$87.95Qty in Cart: 0Quantity:Price:$87.95Subtotal: -
BOYESEN Impeller Water Pump - Magnesium - YZ125 WPK-31AM
BOYESEN
$219.95Stock water pumps can't keep pace with a high-revving YZ125, leaving your engine vulnerable to thermal stress and performance loss. The Boyesen Impeller upgrade delivers measurably higher coolant flow across the entire RPM band, maintaining optimal...09401472- SKU:
- 09401472
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- COLOR/FINISH:
- GOLD
- MODEL:
- SUPERCOOLER
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- NAUTILUS
- COLOR/FINISH:
- MAGNESIUM
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- PRODUCT NAME:
- IMPELLER
- BASE COLOR:
- GOLD
$219.95Qty in Cart: 0Quantity:Price:$219.95Subtotal: -
BOYESEN Ignition Cover - Gold SC-41M
BOYESEN
$87.95Engine covers aren't just cosmetic—they're critical protection against dirt, moisture, and debris that can compromise internal engine components. The BOYESEN Ignition Cover delivers the durability and fit of a factory component while outlasting OEM...09400700- SKU:
- 09400700
- Availability:
- Ships Same Business Day
- Weight:
- 0.71 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION
- COLOR/FINISH:
- MAGNESIUM
- COLOR/FINISH:
- POWDER-COATED
- MATERIAL:
- ALUMINUM
- MODEL:
- FACTORY RACING
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- STREET
- UNITS:
- EACH
$87.95Qty in Cart: 0Quantity:Price:$87.95Subtotal: -
BOYESEN Clutch Cover - Gold - CR250/500 CC-02M
BOYESEN
$95.95A lightweight clutch cover is essential for reducing unsprung weight and improving your bike's overall power-to-weight ratio—critical gains on the track where every fraction matters. The BOYESEN CC-02M delivers race-proven durability without sacrificing...09400222- SKU:
- 09400222
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- COLOR/FINISH:
- MAGNESIUM
- 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 Ignition Cover - Gold - CR250 SC-02M
BOYESEN
$87.95A factory-quality ignition cover protects your CR250's engine from the elements while maintaining that professional appearance in the pits or on the track. Boyesen's cast aluminum construction delivers OEM reliability without the OEM price tag, and the...09400210- SKU:
- 09400210
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- COLOR/FINISH:
- MAGNESIUM
- COLOR/FINISH:
- POWDER-COATED
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION
- UNITS:
- EACH
$87.95
