Dirt Bike Engine Gaskets and Kits
Dirt Bike Engine Gaskets & Top-End Kits for Yamaha, Honda XR650L & CRF at JJ Motorsports
Refresh your dirt bike's top end with premium engine gaskets and complete kits from JJ Motorsports, precision-manufactured for leak-free sealing, optimal compression, and reliable performance in motocross, enduro, and trail riding. Our selection includes full gasket sets, top-end rebuild kits, O-rings, and head/base gaskets designed for perfect fitment, heat resistance, and easy installation without machining. Compatible with popular models like Yamaha YZ/WR, Honda XR650L, CRF, and more, these high-quality components from trusted brands ensure smoother operation, reduced oil consumption, and extended engine life under dusty, high-RPM conditions. From Moose Racing's comprehensive off-road sets to ProX and Athena's OEM-spec top-end kits, get everything needed for a professional rebuild—head gaskets, valve seals, base gaskets, and more—to restore power and prevent blow-by on every ride.
Shop brands like Moose Racing, ProX, and Athena for race-proven quality. Explore related categories such as dirt bike piston and ring kits for full rebuilds or dirt bike engine for cylinders and valves.
Top Dirt Bike Engine Gaskets & Kits
- Moose Offroad Complete Gasket Set Yamaha 8080037MSE – Full engine gasket kit for Yamaha models; includes all necessary seals, O-rings, and gaskets for complete top-to-bottom rebuild with OEM reliability.
- ProX Top End Gasket Set Honda XR650L 35.1623 – Precision top-end kit for Honda XR650L; features head, base, and valve stem seals for leak-free compression and easy installation.
- Athena Top End Gasket Kit Honda P400210600323 – High-performance top-end rebuild kit for Honda CRF models; includes multi-layer steel head gasket, O-rings, and seals for maximum sealing under extreme conditions.
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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PROX Water Pump Rebuild Kit - Yamaha 57.2122
PROX
$36.95A failing water pump compromises engine cooling efficiency and risks catastrophic overheating—especially critical under racing conditions or sustained high-performance driving. The PROX 57.2122 Rebuild Kit restores your Yamaha water pump to OEM...09347005- SKU:
- 09347005
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
$36.95 -
PROX Water Pump Rebuild Kit - Yamaha 57.2218
PROX
$36.95A worn water pump compromises cooling efficiency and risks catastrophic engine damage—especially critical in high-performance applications where thermal management directly impacts reliability and power output. The PROX Water Pump Rebuild Kit restores...09347006- SKU:
- 09347006
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- WATER PUMP
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- REPAIR KIT
$36.95 -
PROX Water Pump Rebuild Kit - Yamaha 57.2225
PROX
$36.95Water pump failure can leave you stranded and cause catastrophic engine damage from overheating. The PROX Water Pump Rebuild Kit gives you factory-quality internal components to restore cooling system integrity without replacing the entire pump assembly...09347007- SKU:
- 09347007
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- WATER PUMP
- UNITS:
- KIT
$36.95 -
PROX Water Pump Rebuild Kit - Yamaha 57.2318
PROX
$44.95A failing water pump can compromise your engine's thermal stability and lead to catastrophic overheating—especially under racing conditions or extended high-load operation. The PROX Water Pump Rebuild Kit gives you OEM-equivalent seals, gaskets, and...09347009- SKU:
- 09347009
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- WATER PUMP
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$44.95 -
PROX Water Pump Rebuild Kit - Yamaha 57.2319
PROX
$36.95A failing water pump compromises your engine's cooling efficiency, risking catastrophic overheating during high-performance operation. The PROX 57.2319 Rebuild Kit lets you restore your Yamaha water pump to OEM specifications without the cost of a...09347010- SKU:
- 09347010
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
$36.95 -
PROX Water Pump Rebuild Kit - Yamaha 57.2320
PROX
$34.95A failing water pump compromises engine cooling efficiency and risks catastrophic overheating—especially under racing conditions or sustained high-RPM operation. The PROX Water Pump Rebuild Kit for Yamaha gives you OEM-equivalent cooling performance with...09347011- SKU:
- 09347011
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- WATER PUMP
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$34.95Qty in Cart: 0Quantity:Price:$34.95Subtotal: -
PROX Water Pump Rebuild Kit - Yamaha 57.2321
PROX
$36.95A failing water pump compromises engine cooling efficiency and risks catastrophic overheating, especially under racing conditions or sustained high-RPM operation. This PROX rebuild kit restores your Yamaha water pump to OEM specifications with quality...09347012- SKU:
- 09347012
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- REPAIR KIT
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
$36.95 -
PROX Water Pump Rebuild Kit - Yamaha 57.2324
PROX
$36.95A failing water pump compromises your engine's cooling efficiency and risks catastrophic overheating during high-performance operation. The PROX Water Pump Rebuild Kit restores OEM cooling performance with precision-engineered internals, eliminating the...09347013- SKU:
- 09347013
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
$36.95 -
PROX Water Pump Rebuild Kit - Yamaha 57.2423
PROX
$36.95A failing water pump can silently compromise your engine's cooling system, leading to thermal stress and catastrophic failure during peak performance. The PROX Water Pump Rebuild Kit restores your Yamaha's cooling efficiency with OEM-specification...09347014- SKU:
- 09347014
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
$36.95 -
PROX Water Pump Rebuild Kit - Yamaha 57.2424
PROX
$36.95A failing water pump compromises your engine's cooling efficiency and can lead to catastrophic overheating during critical race conditions or extended ride sessions. The PROX Water Pump Rebuild Kit for Yamaha restores original cooling performance with...09347015- SKU:
- 09347015
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
- TYPE:
- WATER PUMP
$36.95 -
PROX Water Pump Rebuild Kit - Yamaha 57.2425
PROX
$31.95A failing water pump compromises engine cooling efficiency and risks catastrophic overheating—especially critical in high-performance or race applications where thermal management directly impacts reliability and longevity. The PROX Water Pump Rebuild...09347016- SKU:
- 09347016
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- WATER PUMP
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$31.95 -
PROX Water Pump Rebuild Kit - Yamaha 57.2426
PROX
$36.95A water pump failure can leave you stranded on the track or trail, and replacement costs add up fast. The PROX Water Pump Rebuild Kit for Yamaha gives you a cost-effective way to restore your pump to factory specifications without a full replacement...09347017- SKU:
- 09347017
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- WATER PUMP
$36.95 -
PROX Water Pump Rebuild Kit - Suzuki 57.3023
PROX
$43.74A failing water pump compromises cooling efficiency and risks catastrophic engine damage—especially under racing conditions where thermal management is non-negotiable. The PROX 57.3023 Rebuild Kit gives you OEM-equivalent performance at a fraction of...09347024- SKU:
- 09347024
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
$43.74 -
PROX Water Pump Rebuild Kit - Suzuki 57.3111
PROX
$34.95A failing water pump compromises engine cooling efficiency and risks catastrophic overheating, especially under racing conditions or sustained high-performance driving. The PROX Water Pump Rebuild Kit restores your Suzuki's cooling system to OEM...09347025- SKU:
- 09347025
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
$34.95 -
PROX Water Pump Rebuild Kit - Suzuki 57.3122
PROX
$34.95Water pump failure can strand you mid-race or leave your engine overheating on the track. This PROX rebuild kit gives you OEM-quality seals, gaskets, and internal components to restore your water pump to factory specifications without the downtime of...09347026- SKU:
- 09347026
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- PRODUCT NAME:
- REPAIR KIT
$34.95Qty in Cart: 0Quantity:Price:$34.95Subtotal: -
PROX Water Pump Rebuild Kit - Suzuki 57.3212
PROX
$52.95A worn water pump compromises cooling efficiency and risks catastrophic engine failure. This PROX rebuild kit restores your Suzuki's cooling system to OEM specifications with precision-engineered components, eliminating leaks and performance degradation...09347027- SKU:
- 09347027
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- WATER PUMP
- UNITS:
- KIT
$52.95 -
PROX Water Pump Rebuild Kit - Suzuki 57.3327
PROX
$25.95A failing water pump doesn't just compromise cooling efficiency—it risks catastrophic engine damage. The PROX Water Pump Rebuild Kit for Suzuki gives you OEM-equivalent performance and reliability with complete gasket and seal replacement, restoring your...09347031- SKU:
- 09347031
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
$25.95 -
PROX Water Pump Rebuild Kit - Suzuki 57.3420
PROX
$67.95A failing water pump can silently compromise your engine's thermal management, leading to overheating and catastrophic failure during critical race sessions or trail runs. The PROX Water Pump Rebuild Kit for Suzuki restores your cooling system to OEM...09347032- SKU:
- 09347032
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- KIT
- TYPE:
- WATER PUMP
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- STREET
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
$67.95 -
PROX Water Pump Rebuild Kit - Suzuki 57.3423
PROX
$34.95A water pump failure can sideline your engine and derail race day plans. The PROX Water Pump Rebuild Kit for Suzuki engines gives you OEM-quality replacement seals, bearings, and gaskets to restore cooling system integrity without a full pump replacement...09347034- SKU:
- 09347034
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- WATER PUMP
- PRODUCT NAME:
- REPAIR KIT
$34.95Qty in Cart: 0Quantity:Price:$34.95Subtotal: -
PROX Water Pump Rebuild Kit - Kawasaki 57.4023
PROX
$39.95A failing water pump can compromise your engine's thermal management and lead to costly damage—especially in high-performance applications where precision cooling is critical. The PROX Water Pump Rebuild Kit gives you OEM-equivalent reliability without...09347039- SKU:
- 09347039
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- PRODUCT NAME:
- REPAIR KIT
$39.95
