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
-
MOOSE RACING Ignition Cover Gasket 816170
MOOSE RACING
$11.22A failing ignition cover gasket compromises your engine's seal integrity, risking oil seepage and potential ignition system damage—especially critical in high-performance and racing applications...09346961- SKU:
- 09346961
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION COVER
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
$11.22 -
MOOSE RACING Clutch Outer Gasket - Suzuki 816185
MOOSE RACING
$11.73A worn or damaged clutch outer gasket compromises your clutch cover seal, leading to oil leakage and potential drivetrain failure. This OEM-equivalent MOOSE RACING gasket restores a critical seal...09346962- SKU:
- 09346962
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- UNITS:
- EACH
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET
- TYPE:
- CLUTCH OUTER
$11.73Qty in Cart: 0Quantity:Price:$11.73Subtotal: -
MOOSE RACING Ignition Cover Gasket 816239
MOOSE RACING
$10.84An ignition cover gasket that fails prematurely wastes time and risks engine contamination. The MOOSE RACING Ignition Cover Gasket delivers OEM-quality sealing at a fraction of the cost, whether...09342130- SKU:
- 09342130
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION COVER
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
$10.84 -
MOOSE RACING Complete Motor Gasket Kit - CRF250 808285
MOOSE RACING
$154.95A complete engine rebuild demands precision gaskets and seals that won't compromise reliability or break your budget. The MOOSE RACING Complete Motor Gasket Kit delivers OEM-quality components at a...09342201- SKU:
- 09342201
- Availability:
- Ships Same Business Day
- Weight:
- 0.34 LBS
- TYPE:
- ENGINE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET
$154.95Qty in Cart: 0Quantity:Price:$154.95Subtotal: -
MOOSE RACING Complete Motor Gasket Kit - 350SXF 808339
MOOSE RACING
$140.62A complete engine and transmission rebuild demands precision-engineered gaskets and seals that won't compromise reliability or cost you a fortune. The MOOSE RACING Complete Motor Gasket Kit delivers...09342202- SKU:
- 09342202
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
- TYPE:
- ENGINE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET
- TYPE:
- COMPLETE
$140.62Qty in Cart: 0Quantity:Price:$140.62Subtotal: -
MOOSE RACING Complete Motor Gasket Kit - RMZ250 808567
MOOSE RACING
$141.67A complete engine and transmission rebuild demands precision gaskets and seals that won't fail under load. The MOOSE RACING Complete Motor Gasket Kit eliminates guesswork by providing every gasket,...09342203- SKU:
- 09342203
- Availability:
- Ships Same Business Day
- Weight:
- 0.33 LBS
- TYPE:
- ENGINE
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
$141.67Qty in Cart: 0Quantity:Price:$141.67Subtotal: -
MOOSE RACING Complete Motor Gasket Kit - YZ450F 808689
MOOSE RACING
$153.37A complete engine and transmission rebuild demands precision-fit gaskets and seals that won't compromise reliability or performance. The MOOSE RACING Complete Motor Gasket Kit delivers OEM-quality...09342204- SKU:
- 09342204
- Availability:
- Ships Same Business Day
- Weight:
- 0.29 LBS
- TYPE:
- ENGINE
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
$153.37Qty in Cart: 0Quantity:Price:$153.37Subtotal: -
MOOSE RACING Top End Gasket Kit - CRF250 810285
MOOSE RACING
$73.09When you're rebuilding a CRF250 top end, you need gaskets and seals that maintain proper compression and prevent oil leakage under sustained load. The MOOSE RACING Top End Gasket Kit delivers...09342205- SKU:
- 09342205
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET
- TYPE:
- TOP END
$73.09 -
MOOSE RACING Top End Gasket Kit - 350SXF 810339
MOOSE RACING
$97.12A top-end rebuild demands precision gasket sealing—any leak compromises compression, performance, and engine longevity. The MOOSE RACING Top End Gasket Kit delivers OEM-quality seals at a fraction of...09342206- SKU:
- 09342206
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET
$97.12 -
MOOSE RACING Exhaust Gasket Kit 823155
MOOSE RACING
$21.87Exhaust gasket degradation is one of the most common sources of performance loss and emissions leaks in high-performance engines. A quality gasket kit ensures a perfect seal between exhaust manifolds...09345336- SKU:
- 09345336
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- EXHAUST
$21.87 -
MOOSE RACING Complete Motor Gasket Kit - TW200 808642
MOOSE RACING
$77.38A complete engine and transmission rebuild demands precision gaskets and seals that won't fail under load. The MOOSE RACING Complete Motor Gasket Kit eliminates the guesswork—and the cost of sourcing...09344785- SKU:
- 09344785
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- TYPE:
- ENGINE
- TYPE:
- COMPLETE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$77.38 -
MOOSE RACING Top End Gasket - KX125 03 810430
MOOSE RACING
$38.67When you're rebuilding a KX125 top end, you need gaskets and seals that won't let you down—especially if you're running higher compression or replacing a piston. The MOOSE RACING Top End Gasket Set...09340072- SKU:
- 09340072
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- ENGINE TYPE:
- 2-STROKE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET
$38.67 -
MOOSE RACING Top End Gasket - KLX/DRZ110 810415
MOOSE RACING
$38.72A top-end rebuild demands precision gaskets and seals that won't compromise engine integrity or cost you a fortune. The MOOSE RACING gasket set eliminates the need to source OEM parts at premium...09340073- SKU:
- 09340073
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
- TYPE:
- TOP END
$38.72 -
MOOSE RACING Top End Gasket - DRZ125 810531
MOOSE RACING
$35.01A top-end rebuild demands precision gaskets and seals that won't fail under racing conditions or high-mileage riding. This Moose Racing gasket set eliminates the guesswork and expense of sourcing...09340074- SKU:
- 09340074
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET
$35.01 -
MOOSE RACING Top End Gasket - YZ450F/YFZ 810677
MOOSE RACING
$68.81A top-end rebuild demands precision gaskets and seals that won't compromise your engine's integrity or your wallet. The MOOSE RACING gasket set delivers OEM-quality performance at a fraction of the...09340081- SKU:
- 09340081
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- KIT
$68.81 -
On Sale
VESRAH Exhaust Gasket VE-3003
VESRAH
MSRP: $50.98Now: $48.43Was: $50.98Exhaust gasket failure leads to performance loss, increased emissions, and costly heat damage to surrounding components. The VESRAH VE-3003 delivers a reliable, cost-effective seal that maintains...VX3003- SKU:
- VX3003
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- EXHAUST
- UNITS:
- 10 PACK
MSRP: $50.98Now: $48.43Was: $50.98 -
On Sale
VESRAH Exhaust Gasket VE-4004
VESRAH
MSRP: $55.95Now: $53.15Was: $55.95Exhaust leaks compromise both performance and emissions control, robbing your engine of power while creating unwanted noise and heat. The VESRAH VE-4004 exhaust gasket pack delivers reliable sealing...VX4004- SKU:
- VX4004
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- TYPE:
- EXHAUST
- PRODUCT NAME:
- GASKET
- UNITS:
- 10 PACK
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
MSRP: $55.95Now: $53.15Was: $55.95 -
On Sale
VESRAH Top End Gasket Kit - Yamaha 50 VG-6021
VESRAH
MSRP: $13.74Now: $13.05Was: $13.74A top-end rebuild demands precision gaskets that seal properly under pressure—compromising here risks compression loss and oil leakage that'll sideline your bike. The VESRAH VG-6021 kit includes...09342896- SKU:
- 09342896
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- SET
- PRODUCT NAME:
- GASKET
MSRP: $13.74Now: $13.05Was: $13.74 -
On Sale
VESRAH Complete Gasket Kit - XL/R 70/80 VG-1034
VESRAH
MSRP: $59.95Now: $56.95Was: $59.95A complete engine rebuild demands precision at every seal and gasket interface—any leak or failure will compromise performance and reliability. The VESRAH VG-1034 Complete Gasket Kit delivers...VG1034- SKU:
- VG1034
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- SET
MSRP: $59.95Now: $56.95Was: $59.95Qty in Cart: 0Quantity:Price:MSRP: $59.95Now: $56.95Was: $59.95Subtotal: -
On Sale
VESRAH Complete Gasket Kit - DT/MX/YZ125 VG-265
VESRAH
MSRP: $26.25Now: $24.94Was: $26.25A complete engine rebuild demands precision sealing—and this VESRAH gasket kit delivers exactly what you need to restore your DT/MX/YZ125 to factory specifications. Worn or compromised gaskets are a...VG265- SKU:
- VG265
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- PRODUCT NAME:
- GASKET
MSRP: $26.25Now: $24.94Was: $26.25
