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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VESRAH Top End Gasket Kit - XL350 VG-5080-M
VESRAH
$138.95A top-end rebuild demands precision—gasket failure mid-race costs you time and credibility. The VESRAH VG-5080-M delivers complete gasket coverage for your XL350, eliminating guesswork and ensuring proper sealing across all critical engine surfaces. This...VG5080- SKU:
- VG5080
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- GASKET
- TYPE:
- TOP END
- UNITS:
- SET
$138.95 -
VESRAH Top End Gasket Kit - XL 200 VG-591
VESRAH
$31.95A top-end rebuild demands precision sealing at every interface—compromised gaskets lead to oil weeping, compression loss, and premature wear. The VESRAH VG-591 delivers a complete gasket solution with all necessary components in one kit, eliminating the...VG591- SKU:
- VG591
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- UNITS:
- SET
- PRODUCT NAME:
- GASKET
- TYPE:
- TOP END
- RIDING STYLE:
- OFF-ROAD
$31.95 -
MOOSE RACING Gasket - Top End - Suzuki 810532
MOOSE RACING
$45.27A top-end rebuild demands precision gaskets that won't compromise seal integrity or cost you a fortune. The MOOSE RACING Gasket Set delivers OEM-quality sealing performance at a fraction of the price, using high-tech materials engineered for reliability...09346577- SKU:
- 09346577
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
- TYPE:
- TOP END
$45.27 -
MOOSE RACING Complete Motor Gasket Kit - KTM/Husqvarna 808330
MOOSE RACING
$88.86A complete engine and transmission rebuild demands precision gaskets and seals that won't fail under load—OEM parts carry premium pricing that Moose Racing eliminates without compromising quality. This comprehensive kit includes every gasket, o-ring, and...09341684- SKU:
- 09341684
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- ENGINE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
$88.86 -
MOOSE RACING Complete Motor Gasket Kit - KTM/Husqvarna 808333
MOOSE RACING
$87.56A complete engine and transmission rebuild demands precision gaskets and seals that won't compromise your work—this kit eliminates the hassle of sourcing individual components while cutting costs well below OEM pricing. MOOSE Racing gasket sets are...09341685- SKU:
- 09341685
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- TYPE:
- ENGINE
$87.56 -
MOOSE RACING Complete Motor Gasket Kit - KTM/Husaberg/Husqvarna 250 808334
MOOSE RACING
$90.50A complete engine and transmission rebuild demands precision gaskets and seals that won't compromise reliability or performance. The MOOSE RACING Complete Motor Gasket Kit eliminates the guesswork and expense of sourcing individual components, delivering...09341686- SKU:
- 09341686
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
- TYPE:
- ENGINE
$90.50Qty in Cart: 0Quantity:Price:$90.50Subtotal: -
MOOSE RACING Complete Motor Gasket Kit - KTM/Husaberg/Husqvarna 300 808335
MOOSE RACING
$80.32A complete engine rebuild demands precision gaskets and seals that won't compromise your engine's integrity or cost you a fortune. The MOOSE RACING Complete Motor Gasket Kit eliminates the guesswork of sourcing individual components, giving you every...09341687- SKU:
- 09341687
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- TYPE:
- ENGINE
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
$80.32 -
MOOSE RACING Complete Motor Gasket Kit - KX85 808419
MOOSE RACING
$58.40A complete engine and transmission rebuild demands precision-fit gaskets and seals that won't compromise your performance gains. The MOOSE RACING Complete Motor Gasket Kit eliminates the guesswork of sourcing individual components—every gasket, o-ring,...09341689- SKU:
- 09341689
- Availability:
- Ships Same Business Day
- Weight:
- 0.14 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- TYPE:
- ENGINE
- PRODUCT NAME:
- GASKET
$58.40 -
MOOSE RACING Top End Gasket Kit - 250SX/XC 810333
MOOSE RACING
$47.28When you're rebuilding a 250SX/XC top end, using OEM-equivalent gaskets and seals is non-negotiable—they're what keeps compression stable, oil where it belongs, and your engine reliable between races. The MOOSE RACING Top End Gasket Kit gives you every...09341690- SKU:
- 09341690
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- TOP END
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$47.28 -
MOOSE RACING Top End Gasket Kit - 300/XC/XCW 810335
MOOSE RACING
$40.11A top-end rebuild demands precision—and this Moose Racing gasket kit delivers every seal and gasket you need without the OEM price tag. Whether you're replacing a worn piston or raising compression, this U.S.-made kit gives you the reliability to trust...09341691- SKU:
- 09341691
- Availability:
- Ships Same Business Day
- Weight:
- 0.07 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- TOP END
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$40.11 -
MOOSE RACING Clutch Cover Gasket 816547
MOOSE RACING
$11.64A failing clutch cover gasket leads to oil seepage, contamination, and potential engine damage—exactly the kind of preventable failure that costs you track time and money. The MOOSE RACING Clutch Cover Gasket 816547 delivers OEM-quality sealing with the...09340572- SKU:
- 09340572
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH COVER
$11.64 -
MOOSE RACING Clutch Cover Gasket 816590
MOOSE RACING
$10.66A leaking clutch cover gasket compromises engine sealing and invites oil contamination into your clutch assembly—exactly what you don't need mid-season. The MOOSE RACING Clutch Cover Gasket delivers OEM-equivalent sealing performance at a fraction of OEM...09340573- SKU:
- 09340573
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH COVER
- UNITS:
- EACH
- PRODUCT NAME:
- GASKET
$10.66 -
MOOSE RACING Ignition Cover Gasket 816589
MOOSE RACING
$8.13A leaking ignition cover gasket compromises engine sealing and can lead to oil weeping that threatens performance and longevity. The MOOSE RACING Ignition Cover Gasket delivers OEM-quality sealing at a fraction of dealership pricing, making it the smart...09340575- SKU:
- 09340575
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION COVER
$8.13 -
MOOSE RACING Clutch Cover Gasket 817731
MOOSE RACING
$12.09A leaking clutch cover gasket compromises engine sealing and can lead to oil loss and contamination. The MOOSE RACING Clutch Cover Gasket 817731 delivers OEM-equivalent sealing performance at a fraction of OEM pricing, using high-tech materials...09340578- SKU:
- 09340578
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH COVER
$12.09 -
MOOSE RACING Top End Gasket Kit - KX250 810464
MOOSE RACING
$46.75A top-end rebuild demands precision gaskets and seals that won't compromise engine integrity or cost you a fortune. The MOOSE RACING Top End Gasket Kit delivers OEM-quality components at a fraction of the price, giving you the confidence to rebuild your...09340333- SKU:
- 09340333
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET
$46.75 -
MOOSE RACING Complete Motor Gasket Kit - YZF450 808677
MOOSE RACING
$80.32A complete engine rebuild demands precision gaskets and seals that won't fail mid-season. The MOOSE RACING Complete Motor Gasket Kit eliminates the guesswork by bundling every gasket, o-ring, and valve seal your YZF450 needs for a reliable, leak-free...09340335- SKU:
- 09340335
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- TYPE:
- ENGINE
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
$80.32 -
MOOSE RACING Motor Gasket Kit with Seal - KX250 811464
MOOSE RACING
$82.98A complete engine and transmission rebuild demands precision gaskets and seals that won't compromise your performance or reliability. This MOOSE RACING kit eliminates the guesswork and expense of sourcing individual components by bundling genuine...09340336- SKU:
- 09340336
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET
- TYPE:
- ENGINE
$82.98 -
VESRAH Complete Gasket Kit - DT/MX 175 VG-266
VESRAH
$22.13A complete engine rebuild demands precision sealing at every junction—and that's where a quality gasket kit becomes non-negotiable. The VESRAH Complete Gasket Kit VG-266 delivers all necessary gaskets, o-rings, and valve guide oil seals in one package,...VG266- SKU:
- VG266
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- UNITS:
- SET
- TYPE:
- COMPLETE
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
$22.13 -
VESRAH Complete Gasket Kit - SR/TT/XT500 VG-274
VESRAH
$74.49A complete engine rebuild demands precision—and compromised gaskets will undermine every hour of work you invest. The VESRAH VG-274 gives you every seal, o-ring, and gasket your SR/TT/XT500 needs in one kit, eliminating the frustration of sourcing...VG274- SKU:
- VG274
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- PRODUCT NAME:
- GASKET
- UNITS:
- SET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$74.49 -
VESRAH Complete Gasket Kit - DT/YZ 125 VG-280
VESRAH
$28.95A complete engine rebuild demands a comprehensive gasket solution—incomplete kits risk compression loss, oil leakage, and catastrophic failure. The VESRAH VG-280 delivers every gasket and seal your DT/YZ 125 needs for a thorough, reliable restoration...VG280- SKU:
- VG280
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- PRODUCT NAME:
- GASKET
$28.95
