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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MOOSE RACING Clutch Cover Gasket 816093
MOOSE RACING
$10.87A leaking clutch cover gasket compromises engine integrity and creates messy cleanup work. The MOOSE RACING Clutch Cover Gasket delivers OEM-equivalent sealing performance at a fraction of OEM pricing, using high-tech materials engineered for durability...09340580- SKU:
- 09340580
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH COVER
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$10.87 -
MOOSE RACING Ignition Cover Gasket 816211
MOOSE RACING
$8.55A leaking ignition cover gasket compromises engine sealing and can lead to oil loss and contamination. MOOSE RACING's OEM-equivalent replacement gasket delivers precision fitment and reliable sealing at a fraction of dealership pricing. Whether you're...09341006- SKU:
- 09341006
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- TYPE:
- IGNITION COVER
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
$8.55 -
MOOSE RACING Water Pump Rebuild Kit 821457
MOOSE RACING
$57.51A failing water pump compromises your entire cooling system, risking catastrophic engine damage on the track or street. The MOOSE RACING Water Pump Rebuild Kit 821457 gives you everything needed to restore OEM performance without the cost of a complete...09345222- SKU:
- 09345222
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- WATER PUMP
$57.51 -
MOOSE RACING Water Pump Rebuild Kit 821458
MOOSE RACING
$50.82A failing water pump can silently undermine your engine's thermal management, leading to catastrophic overheating and potential block damage. This MOOSE RACING rebuild kit delivers every gasket, seal, bearing, and snap ring needed to restore your water...09345223- SKU:
- 09345223
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
$50.82Qty in Cart: 0Quantity:Price:$50.82Subtotal: -
MOOSE RACING Water Pump Rebuild Kit 821459
MOOSE RACING
$45.72A failing water pump doesn't just compromise cooling efficiency—it risks catastrophic engine damage. The MOOSE RACING Water Pump Rebuild Kit 821459 gives you everything needed to restore your pump to OEM specification without the downtime and expense of...09345224- SKU:
- 09345224
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- PRODUCT NAME:
- REPAIR KIT
$45.72Qty in Cart: 0Quantity:Price:$45.72Subtotal: -
MOOSE RACING Water Pump Rebuild Kit 821460
MOOSE RACING
$57.65A failing water pump can sideline your build or race season—catching problems early with a complete rebuild kit saves you downtime and prevents catastrophic cooling system failures. The MOOSE RACING 821460 rebuild kit supplies every critical gasket,...09345225- SKU:
- 09345225
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- PRODUCT NAME:
- REPAIR KIT
$57.65 -
MOOSE RACING Water Pump Rebuild Kit 821463
MOOSE RACING
$64.58A worn water pump can silently undermine engine cooling efficiency, leading to overheating and catastrophic failure during hard track sessions or extended driving. This MOOSE RACING rebuild kit supplies every seal, bearing, gasket, and snap ring needed...09345226- SKU:
- 09345226
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP
- UNITS:
- KIT
- PRODUCT NAME:
- REPAIR KIT
$64.58Qty in Cart: 0Quantity:Price:$64.58Subtotal: -
MOOSE RACING Water Pump Rebuild Kit 821465
MOOSE RACING
$64.67A failing water pump compromises your entire cooling system and can lead to catastrophic engine damage on the track or road. This MOOSE RACING rebuild kit gives you everything needed to restore your water pump to OEM performance specifications without...09345227- SKU:
- 09345227
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- WATER PUMP
$64.67Qty in Cart: 0Quantity:Price:$64.67Subtotal: -
MOOSE RACING Water Pump Rebuild Kit 821469
MOOSE RACING
$55.26A failing water pump doesn't just compromise cooling efficiency—it risks catastrophic engine damage. This MOOSE RACING rebuild kit supplies every internal component needed to restore your water pump to OEM specifications without the cost of a full...09345228- SKU:
- 09345228
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- WATER PUMP
- UNITS:
- KIT
$55.26 -
MOOSE RACING Water Pump Rebuild Kit 821482
MOOSE RACING
$55.39A failing water pump compromises your entire cooling system, risking catastrophic engine damage and costly downtime. The MOOSE RACING Water Pump Rebuild Kit 821482 gives you everything needed to restore OEM functionality without the expense of a full...09345232- SKU:
- 09345232
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- WATER PUMP
$55.39 -
MOOSE RACING Exhaust Gasket Kit 823161
MOOSE RACING
$21.87A quality exhaust gasket kit is essential for maintaining a reliable seal between your exhaust manifold and header components—preventing costly exhaust leaks that reduce performance and increase emissions. MOOSE RACING's gasket kit delivers...09345342- SKU:
- 09345342
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- EXHAUST
- PRODUCT NAME:
- GASKET KIT
$21.87Qty in Cart: 0Quantity:Price:$21.87Subtotal: -
MOOSE RACING Exhaust Gasket Kit 823162
MOOSE RACING
$21.48Exhaust leaks compromise both performance and reliability, allowing combustion gases to escape before they're properly measured and scavenged. A quality gasket kit seals critical junctions throughout your exhaust system, maintaining backpressure,...09345343- SKU:
- 09345343
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- EXHAUST
- UNITS:
- KIT
$21.48Qty in Cart: 0Quantity:Price:$21.48Subtotal: -
MOOSE RACING Exhaust Gasket Kit 823163
MOOSE RACING
$14.99A leaking exhaust gasket compromises engine sealing, reduces performance efficiency, and can allow exhaust gases to escape before reaching your exhaust system—costing you horsepower and risking engine damage. The MOOSE RACING Exhaust Gasket Kit 823163...09345344- SKU:
- 09345344
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- EXHAUST
$14.99 -
MOOSE RACING Exhaust Gasket Kit 823164
MOOSE RACING
$14.70A leaking exhaust gasket can compromise your engine's performance, waste fuel, and create diagnostic headaches that ripple through your entire system. MOOSE RACING's Exhaust Gasket Kit 823164 delivers OEM-quality sealing with the durability you need for...09345345- SKU:
- 09345345
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- EXHAUST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$14.70 -
MOOSE RACING Exhaust Gasket Kit 823165
MOOSE RACING
$14.70A proper seal at your exhaust manifold is non-negotiable for maintaining peak engine performance and preventing costly exhaust leaks. The MOOSE RACING Exhaust Gasket Kit 823165 delivers OEM-quality sealing reliability without the dealership markup,...09345346- SKU:
- 09345346
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- EXHAUST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$14.70Qty in Cart: 0Quantity:Price:$14.70Subtotal: -
MOOSE RACING Exhaust Gasket Kit 823167
MOOSE RACING
$14.70A leaking exhaust gasket compromises both performance and reliability—allowing combustion gases to escape before they reach your exhaust system, which kills power and creates diagnostic headaches. MOOSE RACING's Exhaust Gasket Kit 823167 delivers...09345348- SKU:
- 09345348
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- EXHAUST
$14.70 -
MOOSE RACING Exhaust Gasket Kit 823168
MOOSE RACING
$14.99A compromised exhaust gasket allows unmetered air and combustion gases to escape your system, robbing you of power output and creating vacuum leaks that throw off your fuel mixture. The MOOSE RACING Exhaust Gasket Kit 823168 delivers OEM-grade sealing...09345349- SKU:
- 09345349
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- EXHAUST
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$14.99 -
MOOSE RACING Complete Motor Gasket Kit - KTM/Husqvarna 808340
MOOSE RACING
$73.12A complete engine and transmission rebuild demands gaskets and seals that match OEM precision without the OEM price tag. This MOOSE RACING kit eliminates multiple part orders by consolidating everything you need into one comprehensive set, letting you...09345353- SKU:
- 09345353
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET
- TYPE:
- ENGINE
$73.12 -
MOOSE RACING Water Pump Rebuild Kit 821428
MOOSE RACING
$54.04A failing water pump can sideline your engine when you need it most. This complete MOOSE RACING rebuild kit supplies every seal, gasket, and bearing required to restore your water pump to factory specifications—eliminating leaks and restoring proper...09345217- SKU:
- 09345217
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- TYPE:
- WATER PUMP
$54.04Qty in Cart: 0Quantity:Price:$54.04Subtotal: -
MOOSE RACING Water Pump Rebuild Kit 821429
MOOSE RACING
$48.46A failing water pump compromises your entire cooling system and risks catastrophic engine damage on the track or street. This MOOSE RACING rebuild kit supplies every precision component needed to restore your pump to factory specifications—bearings,...09345218- SKU:
- 09345218
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- WATER PUMP
- UNITS:
- KIT
$48.46Qty in Cart: 0Quantity:Price:$48.46Subtotal:
