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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On Sale
ATHENA Water Pump Gasket Kit - Honda P400210475004
ATHENA
MSRP: $35.95Now: $31.00Was: $35.95A failing water pump gasket doesn't just leak—it compromises your engine's cooling system and can lead to catastrophic overheating. The ATHENA Water Pump Gasket Kit supplies all the critical sealing...09346040- SKU:
- 09346040
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
MSRP: $35.95Now: $31.00Was: $35.95 -
On Sale
ATHENA Water Pump Gasket Kit - Honda P400210475005
ATHENA
MSRP: $32.95Now: $28.00Was: $32.95Water pump gasket failure is one of the most common causes of coolant leaks and engine overheating in Honda applications. This ATHENA gasket kit provides OEM-quality replacements for all critical...09346041- SKU:
- 09346041
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
MSRP: $32.95Now: $28.00Was: $32.95 -
On Sale
ATHENA Water Pump Gasket Kit - Honda P400210475006
ATHENA
MSRP: $31.95Now: $29.00Was: $31.95A failed water pump gasket doesn't just leak—it compromises your cooling system's ability to regulate engine temperature under sustained load, putting your engine at risk. The ATHENA Water Pump...09346042- SKU:
- 09346042
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
MSRP: $31.95Now: $29.00Was: $31.95Qty in Cart: 0Quantity:Price:MSRP: $31.95Now: $29.00Was: $31.95Subtotal: -
On Sale
ATHENA Water Pump Gasket Kit - Honda P400210475007
ATHENA
MSRP: $33.95Now: $29.00Was: $33.95Cooling system leaks waste time and money—they sideline your engine before you hit peak performance. The ATHENA Water Pump Gasket Kit delivers OEM-quality sealing components designed to eliminate...09346043- SKU:
- 09346043
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- WATER PUMP
MSRP: $33.95Now: $29.00Was: $33.95 -
On Sale
ATHENA Water Pump Gasket Kit - Honda P400210475009
ATHENA
MSRP: $35.95Now: $31.00Was: $35.95A failing water pump gasket can silently compromise your cooling system, leading to overheating and catastrophic engine damage. The ATHENA Water Pump Gasket Kit gives you all the critical sealing...09346045- SKU:
- 09346045
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- WATER PUMP
MSRP: $35.95Now: $31.00Was: $35.95 -
On Sale
ATHENA Water Pump Gasket Kit - Honda P400210475010
ATHENA
MSRP: $28.95Now: $24.00Was: $28.95A failing water pump gasket can compromise your entire cooling system, leading to costly overheating and engine damage. The ATHENA Water Pump Gasket Kit delivers OEM-quality sealing across all...09346046- SKU:
- 09346046
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
MSRP: $28.95Now: $24.00Was: $28.95 -
On Sale
ATHENA Water Pump Gasket Kit - Honda P400210475011
ATHENA
MSRP: $33.95Now: $31.00Was: $33.95A failing water pump gasket compromises your engine's cooling system and risks catastrophic overheating. This complete gasket kit from ATHENA supplies all the critical seals and washers needed for a...09346047- SKU:
- 09346047
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- TYPE:
- WATER PUMP
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $33.95Now: $31.00Was: $33.95Qty in Cart: 0Quantity:Price:MSRP: $33.95Now: $31.00Was: $33.95Subtotal: -
On Sale
ATHENA Water Pump Gasket Kit - KTM P400270475002
ATHENA
MSRP: $26.95Now: $22.00Was: $26.95Cooling system leaks compromise engine performance and reliability, making a quality gasket kit essential for any rebuild or maintenance interval. The ATHENA Water Pump Gasket Kit delivers...09346064- SKU:
- 09346064
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
MSRP: $26.95Now: $22.00Was: $26.95 -
On Sale
ATHENA Water Pump Gasket Kit - KTM P400270475003
ATHENA
MSRP: $36.95Now: $31.00Was: $36.95A failing water pump gasket doesn't just leak—it compromises your engine's cooling system and can lead to catastrophic overheating during critical race sessions or trail rides. The ATHENA Water Pump...09346065- SKU:
- 09346065
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
MSRP: $36.95Now: $31.00Was: $36.95 -
On Sale
ATHENA Water Pump Gasket Kit - KTM P400270475004
ATHENA
MSRP: $27.95Now: $23.00Was: $27.95Cooling system integrity is non-negotiable in high-performance applications—a failed water pump gasket means catastrophic overheating and potential engine damage. The ATHENA Water Pump Gasket Kit...09346066- SKU:
- 09346066
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
MSRP: $27.95Now: $23.00Was: $27.95 -
On Sale
ATHENA Water Pump Gasket Kit - KTM P400270475005
ATHENA
MSRP: $38.95Now: $35.00Was: $38.95Coolant leaks and seal failures don't just waste fluid—they compromise engine temperature regulation and can lead to catastrophic overheating. The ATHENA Water Pump Gasket Kit delivers OEM-quality...09346067- SKU:
- 09346067
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- STREET
MSRP: $38.95Now: $35.00Was: $38.95 -
On Sale
ATHENA Water Pump Gasket Kit - KTM P400270475006
ATHENA
MSRP: $49.95Now: $42.00Was: $49.95A leaking water pump doesn't just cost you performance—it costs you reliability and track time. The ATHENA Water Pump Gasket Kit delivers OEM-equivalent sealing without the dealer markup, giving you...09346068- SKU:
- 09346068
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- WATER PUMP
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $49.95Now: $42.00Was: $49.95Qty in Cart: 0Quantity:Price:MSRP: $49.95Now: $42.00Was: $49.95Subtotal: -
On Sale
ATHENA Water Pump Gasket Kit - KTM P400270475007
ATHENA
MSRP: $41.95Now: $36.00Was: $41.95Proper sealing is critical to engine longevity, and factory gaskets degrade with thermal cycling and age. The ATHENA Water Pump Gasket Kit delivers OEM-quality sealing surfaces to prevent coolant...09346069- SKU:
- 09346069
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- WATER PUMP
MSRP: $41.95Now: $36.00Was: $41.95Qty in Cart: 0Quantity:Price:MSRP: $41.95Now: $36.00Was: $41.95Subtotal: -
On Sale
ATHENA Water Pump Gasket Kit - KTM P400270475008
ATHENA
MSRP: $47.95Now: $43.00Was: $47.95Proper gasket sealing is critical to preventing coolant leaks and maintaining engine integrity on your KTM. This comprehensive ATHENA gasket kit provides all the OEM-equivalent sealing components...09346070- SKU:
- 09346070
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- WATER PUMP
MSRP: $47.95Now: $43.00Was: $47.95Qty in Cart: 0Quantity:Price:MSRP: $47.95Now: $43.00Was: $47.95Subtotal: -
On Sale
ATHENA Water Pump Gasket Kit - KTM P400270475010
ATHENA
MSRP: $46.95Now: $42.00Was: $46.95Coolant leaks and gasket failures can sideline your KTM mid-season, compromising engine reliability when you need it most. The ATHENA Water Pump Gasket Kit provides OEM-equivalent sealing across...09346072- SKU:
- 09346072
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- GASKET KIT
MSRP: $46.95Now: $42.00Was: $46.95Qty in Cart: 0Quantity:Price:MSRP: $46.95Now: $42.00Was: $46.95Subtotal: -
On Sale
ATHENA Water Pump Gasket Kit - KTM P400270475011
ATHENA
MSRP: $48.95Now: $44.00Was: $48.95Seal leaks at the source with ATHENA's precision-engineered gasket kit, engineered to eliminate coolant and oil seepage that compromise engine reliability and performance. Whether you're rebuilding...09346073- SKU:
- 09346073
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
MSRP: $48.95Now: $44.00Was: $48.95Qty in Cart: 0Quantity:Price:MSRP: $48.95Now: $44.00Was: $48.95Subtotal: -
On Sale
ATHENA Water Pump Gasket Kit - KTM P400270475012
ATHENA
MSRP: $53.95Now: $46.00Was: $53.95Cooling system leaks compromise engine performance and reliability—a single failed gasket can force you off the track or leave you stranded. The ATHENA Water Pump Gasket Kit delivers OEM-equivalent...09346074- SKU:
- 09346074
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
MSRP: $53.95Now: $46.00Was: $53.95 -
On Sale
ATHENA Water Pump Gasket Kit - KTM P400270475013
ATHENA
MSRP: $53.95Now: $49.00Was: $53.95Include water pump gasket, clutch cover gasket, water pump shaft oil seals and washers, Kit contents will vary slightly based on application, Kits do not contain replacement bearings09346075- SKU:
- 09346075
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
MSRP: $53.95Now: $49.00Was: $53.95Qty in Cart: 0Quantity:Price:MSRP: $53.95Now: $49.00Was: $53.95Subtotal: -
On Sale
ATHENA Water Pump Gasket Kit - KTM P400270475014
ATHENA
MSRP: $39.95Now: $36.00Was: $39.95Include water pump gasket, clutch cover gasket, water pump shaft oil seals and washers, Kit contents will vary slightly based on application, Kits do not contain replacement bearings09346076- SKU:
- 09346076
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- WATER PUMP
MSRP: $39.95Now: $36.00Was: $39.95Qty in Cart: 0Quantity:Price:MSRP: $39.95Now: $36.00Was: $39.95Subtotal: -
On Sale
ATHENA Water Pump Gasket Kit - Suzuki P400510475002
ATHENA
MSRP: $37.95Now: $34.00Was: $37.95Include water pump gasket, clutch cover gasket, water pump shaft oil seals and washers, Kit contents will vary slightly based on application, Kits do not contain replacement bearings09346081- SKU:
- 09346081
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
MSRP: $37.95Now: $34.00Was: $37.95Qty in Cart: 0Quantity:Price:MSRP: $37.95Now: $34.00Was: $37.95Subtotal:
