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 CC-10B
BOYESEN
$179.95A lightweight clutch cover protects one of your most critical drivetrain components while shedding unnecessary weight from your bike. The BOYESEN CC-10B combines precision engineering with a durable powder coat, keeping your clutch assembly sealed and...09401113- SKU:
- 09401113
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$179.95Qty in Cart: 0Quantity:Price:$179.95Subtotal: -
BOYESEN Clutch Cover - Black CC-06AB
BOYESEN
$95.95A lightweight clutch cover reduces unsprung weight and rotational mass, directly improving throttle response and acceleration. The individually surfaced design eliminates fitment issues and leak-prone gaps that plague stock covers, while the...09401110- SKU:
- 09401110
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- TYPE:
- CLUTCH
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$95.95Qty in Cart: 0Quantity:Price:$95.95Subtotal: -
BOYESEN Ignition Cover - Gold SC-30M
BOYESEN
$87.95A quality ignition cover protects critical engine components from moisture, dirt, and debris that compromise reliability and longevity. The BOYESEN SC-30M delivers professional-grade sealing and durability without adding unnecessary weight, making it an...09401108- SKU:
- 09401108
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- COLOR/FINISH:
- MAGNESIUM
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION
- UNITS:
- EACH
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
$87.95 -
BOYESEN Ignition Cover - Black SC-30B
BOYESEN
$87.95Your engine's internals deserve protection from the elements, and a quality ignition cover is non-negotiable for long-term reliability. The BOYESEN SC-30B Factory Ignition Cover combines OEM-grade engineering with a tough powder-coated finish that...09401107- SKU:
- 09401107
- Availability:
- Ships Same Business Day
- Weight:
- 0.73 LBS
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- OFF-ROAD
- MATERIAL:
- ALUMINUM
- TYPE:
- IGNITION
- UNITS:
- EACH
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
$87.95Qty in Cart: 0Quantity:Price:$87.95Subtotal: -
BOYESEN Ignition Cover - Gold SC10AM
BOYESEN
$87.95A quality ignition cover protects your engine's internal components from moisture, dirt, and debris while giving your bike a professional appearance. The BOYESEN SC10AM Factory Ignition Cover combines OEM-style reliability with superior durability,...09401106- SKU:
- 09401106
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- COLOR/FINISH:
- POWDER-COATED
- MATERIAL:
- ALUMINUM
- MODEL:
- FACTORY RACING
- COLOR/FINISH:
- MAGNESIUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION
- UNITS:
- EACH
$87.95 -
BOYESEN Ignition Cover - Black SC10AB
BOYESEN
$87.95A quality ignition cover isn't just cosmetic—it's essential protection for your engine's internals against dirt, moisture, and debris that can compromise performance and longevity. The BOYESEN Factory Ignition Cover delivers the durability and precision...09401105- SKU:
- 09401105
- Availability:
- Ships Same Business Day
- Weight:
- 0.68 LBS
- COLOR/FINISH:
- POWDER-COATED
- MATERIAL:
- ALUMINUM
- MODEL:
- FACTORY RACING
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION
$87.95 -
BOYESEN Ignition Cover - Gold SC-10DM
BOYESEN
$87.95A clean engine bay starts with proper protection. The BOYESEN Ignition Cover shields your engine's internals from moisture, dirt, and debris while delivering a factory-finished appearance that commands respect. Built from premium cast aluminum with a...09401104- SKU:
- 09401104
- Availability:
- Ships Same Business Day
- Weight:
- 0.73 LBS
- TYPE:
- IGNITION
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- MAGNESIUM
- COLOR/FINISH:
- POWDER-COATED
- MATERIAL:
- ALUMINUM
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- OFF-ROAD
$87.95 -
BOYESEN Ignition Cover - Black SC-10DB
BOYESEN
$87.95Engine covers aren't just aesthetic—they're critical protection against contamination and moisture that can compromise performance and longevity. The BOYESEN Ignition Cover combines OEM-quality construction with a durable powder-coated finish that...09401103- SKU:
- 09401103
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- COLOR/FINISH:
- POWDER-COATED
- MATERIAL:
- ALUMINUM
- MODEL:
- FACTORY RACING
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION
$87.95 -
BOYESEN Clutch Cover - Black - KX250 CC-12CB
BOYESEN
$95.95A clutch cover that actually protects your engine while keeping weight off your chassis—that's what separates competitive builds from the rest. The BOYESEN Lightweight Clutch Cover combines factory-grade durability with precision manufacturing to...09400389- SKU:
- 09400389
- Availability:
- Ships Same Business Day
- Weight:
- 1.03 LBS
- COLOR/FINISH:
- BLACK
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- COLOR/FINISH:
- POWDER-COATED
- UNITS:
- EACH
- PRODUCT NAME:
- COVER
$95.95Qty in Cart: 0Quantity:Price:$95.95Subtotal: -
BOYESEN Ignition Cover - Gold - YZ125 SC-33AM
BOYESEN
$87.95A factory-quality ignition cover protects your YZ125's internal engine components from dirt, water, and debris while maintaining a professional appearance on the track or trail. Boyesen's cast-aluminum design delivers the durability of OEM parts without...09400384- SKU:
- 09400384
- Availability:
- Ships Same Business Day
- Weight:
- 0.66 LBS
- COLOR/FINISH:
- MAGNESIUM
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION
- UNITS:
- EACH
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
$87.95 -
BOYESEN Ignition Cover - Black - YZ125 SC-33AB
BOYESEN
$87.95Factory-level protection starts with a quality ignition cover that seals out dirt and water while withstanding the demands of aggressive riding. The Boyesen SC-33AB delivers OEM aesthetics with superior durability—cast from high-grade aluminum and...09400383- SKU:
- 09400383
- Availability:
- Ships Same Business Day
- Weight:
- 0.66 LBS
- MATERIAL:
- ALUMINUM
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- TYPE:
- IGNITION
$87.95 -
BOYESEN Ignition Cover - Gold - KX250 SC-12AM
BOYESEN
$87.95The stock ignition cover on your KX250 SC-12AM is vulnerable to the elements—dirt, water, and constant vibration take their toll. A quality replacement cover like the BOYESEN protects your engine's internal components while giving your bike a...09400381- SKU:
- 09400381
- Availability:
- Ships Same Business Day
- Weight:
- 0.59 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- MAGNESIUM
- COLOR/FINISH:
- POWDER-COATED
- MATERIAL:
- ALUMINUM
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION
$87.95 -
BOYESEN Ignition Cover - Black - XR/CRF50/70 SC-05B
BOYESEN
$109.95A properly sealed ignition cover protects your engine's internals from dirt, water, and debris—critical for reliability whether you're racing or riding casually. The Boyesen Factory Ignition Cover delivers the protection of OEM engineering with materials...09400377- SKU:
- 09400377
- Availability:
- Ships Same Business Day
- Weight:
- 1.19 LBS
- UNITS:
- EACH
- COLOR/FINISH:
- POWDER-COATED
- MATERIAL:
- ALUMINUM
- MODEL:
- FACTORY RACING
- COLOR/FINISH:
- BLACK
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION
- RIDING STYLE:
- STREET
$109.95 -
BOYESEN Clutch Cover - Gold - WR/YZ450 CC-38M
BOYESEN
$95.95If you're running a WR/YZ450, factory clutch covers are a weak point—heavy, prone to leaks, and a visual liability. The BOYESEN Lightweight Clutch Cover cuts unnecessary weight while delivering the precision engineering and durability that separates...09400239- SKU:
- 09400239
- Availability:
- Ships Same Business Day
- Weight:
- 0.84 LBS
- RIDING STYLE:
- OFF-ROAD
- COLOR/FINISH:
- MAGNESIUM
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- TYPE:
- CLUTCH
- UNITS:
- EACH
- PRODUCT NAME:
- COVER
$95.95 -
BOYESEN Clutch Cover - Black - WR450 CC-38B
BOYESEN
$95.95A factory clutch cover protects one of the most critical components on your WR450, and the BOYESEN CC-38B delivers that protection without sacrificing weight or aesthetics. Individually surfaced for a precise fit, this cover eliminates the leak points...09400238- SKU:
- 09400238
- Availability:
- Ships Same Business Day
- Weight:
- 0.87 LBS
- MODEL:
- FACTORY RACING
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- COLOR/FINISH:
- BLACK
- COLOR/FINISH:
- POWDER-COATED
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$95.95 -
BOYESEN Clutch Cover - Gold - YZ250 CC-32AM
BOYESEN
$95.95A factory clutch cover that doesn't leak or fail mid-race saves you time, money, and frustration on the track. The BOYESEN CC-32AM delivers lightweight construction without compromising durability, so you get the weight savings that matter while...09400236- SKU:
- 09400236
- Availability:
- Ships Same Business Day
- Weight:
- 0.85 LBS
- COLOR/FINISH:
- POWDER-COATED
- MODEL:
- FACTORY RACING
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- COLOR/FINISH:
- MAGNESIUM
$95.95Qty in Cart: 0Quantity:Price:$95.95Subtotal: -
Rekluse Clutch Cover Sherco 250 SE-R 2018-2025 RMS-0408001
REKLUSE
$229.00The stock clutch cover on your Sherco 250 SE-R leaves performance on the table. A deeper oil capacity directly translates to better clutch cooling and more consistent lever feel through intense riding sessions, while a billet aluminum construction...09401979- SKU:
- 09401979
- Availability:
- Ships Same Business Day
- Weight:
- 0.80 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- ANODIZED
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
$229.00 -
Rekluse Clutch Cover Beta 350 RR 2020-2025 RMS-0402028
REKLUSE
$229.00The stock clutch cover on your Beta 350 RR is vulnerable to impact damage and thermal stress during aggressive trail riding. This Rekluse billet aluminum replacement delivers superior protection, increased oil capacity for better heat management, and the...09401943- SKU:
- 09401943
- Availability:
- Ships Same Business Day
- Weight:
- 0.96 LBS
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- ANODIZED
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
$229.00 -
Rekluse Clutch Cover GasGas EC 250 2018-2019 RMS-300
REKLUSE
$279.00Off-road riding demands protection that doesn't compromise on durability or engine reliability. The Rekluse Clutch Cover for your GasGas EC 250/300 shields critical components from trail impacts while increasing oil capacity for superior lubrication...09401777- SKU:
- 09401777
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- COLOR/FINISH:
- BLACK
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH
- RIDING STYLE:
- STREET
- COLOR/FINISH:
- ANODIZED
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
$279.00 -
Rekluse Clutch Cover GasGas EC 200 2000-2011 RMS-302
REKLUSE
$229.00Trail damage to your stock clutch cover risks oil leaks, reduced lubrication, and costly engine repairs. The Rekluse billet aluminum cover provides superior impact resistance while increasing oil capacity for better thermal management and engine...09401778- SKU:
- 09401778
- Availability:
- Ships Same Business Day
- Weight:
- 0.95 LBS
- COLOR/FINISH:
- ANODIZED
- COLOR/FINISH:
- BLACK
- MATERIAL:
- BILLET ALUMINUM
- PRODUCT NAME:
- COVER
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- STREET
- TYPE:
- CLUTCH
- UNITS:
- EACH
$229.00
