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 Complete Gasket Kit - Z50 R VG-1006
VESRAH
$47.95A complete engine rebuild demands precision sealing at every junction—and this VESRAH gasket kit eliminates the guesswork by including every gasket, o-ring, and valve guide oil seal you need for a full top-to-bottom refresh. Whether you're rebuilding...VG1006- SKU:
- VG1006
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- UNITS:
- SET
- PRODUCT NAME:
- GASKET
- TYPE:
- COMPLETE
- RIDING STYLE:
- OFF-ROAD
$47.95 -
MOOSE RACING Ignition Cover Gasket 816692
MOOSE RACING
$11.64A worn or compromised ignition cover gasket compromises engine sealing and can lead to oil seepage, contamination, and potential ignition system failure. The MOOSE Racing Ignition Cover Gasket 816692 restores a reliable seal, protecting your ignition...09346162- SKU:
- 09346162
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION COVER
$11.64 -
MOOSE RACING Ignition Cover Gasket 816721
MOOSE RACING
$8.83A quality ignition cover gasket is critical to preventing oil seepage and maintaining proper engine sealing—especially in high-performance applications where heat and vibration accelerate gasket degradation. The MOOSE Racing 816721 delivers reliable...09346163- SKU:
- 09346163
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION COVER
$8.83 -
MOOSE RACING Ignition Cover Gasket 816725
MOOSE RACING
$7.52A compromised ignition cover gasket leads to oil seepage, potential engine contamination, and costly damage to your ignition system. The MOOSE RACING Ignition Cover Gasket 816725 delivers a precision seal that keeps contaminants out and maintains optimal...09346164- SKU:
- 09346164
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- IGNITION COVER
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$7.52Qty in Cart: 0Quantity:Price:$7.52Subtotal: -
MOOSE RACING Ignition Cover Gasket 816736
MOOSE RACING
$8.29A compromised ignition cover gasket can lead to oil seepage, contamination of ignition components, and potential electrical failures—exactly what you don't want mid-race or mid-season. The MOOSE RACING Ignition Cover Gasket 816736 delivers OEM-quality...09346165- SKU:
- 09346165
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- STREET
- TYPE:
- IGNITION COVER
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
$8.29 -
MOOSE RACING Inner Clutch Cover Gasket 816750
MOOSE RACING
$20.35A leaking clutch cover gasket compromises engine sealing and can lead to oil contamination and performance loss. The MOOSE RACING Inner Clutch Cover Gasket delivers OEM-equivalent sealing reliability at a fraction of OEM cost, using high-tech materials...09346166- SKU:
- 09346166
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH COVER
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
$20.35Qty in Cart: 0Quantity:Price:$20.35Subtotal: -
MOOSE RACING Complete Motor Gasket Kit - KTM/Husqvarna 8080036
MOOSE RACING
$131.46A complete engine and transmission rebuild demands gasket and seal integrity—any leak or failure compromises performance and reliability. The MOOSE RACING Complete Motor Gasket Kit delivers OEM-equivalent fitment and material quality at a fraction of OEM...09346441- SKU:
- 09346441
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- ENGINE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
$131.46Qty in Cart: 0Quantity:Price:$131.46Subtotal: -
MOOSE RACING Top End Gasket Kit 8100009
MOOSE RACING
$70.36A top-end rebuild demands precision and reliability—this gasket kit delivers both without the OEM price tag. Engineered with high-tech materials and manufactured to exact tolerances, you get the durability of genuine seals with the cost-effectiveness of...09346442- SKU:
- 09346442
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- TOP END
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
$70.36 -
MOOSE RACING Top End Gasket Kit - Yamaha 8100022
MOOSE RACING
$29.19A top-end gasket kit is essential when rebuilding your engine or replacing pistons—it ensures proper sealing at every critical junction and prevents oil leaks, combustion bypass, and premature wear. MOOSE Racing delivers OEM-equivalent reliability at a...09346443- SKU:
- 09346443
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- TOP END
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
$29.19 -
MOOSE RACING Top End Gasket Kit - Kawasaki 8100023
MOOSE RACING
$87.56A top-end rebuild demands precision-matched components that won't compromise reliability or performance. The MOOSE RACING Top End Gasket Kit delivers OEM-quality seals and gaskets at a fraction of the OEM price, giving you confidence that every critical...09346444- SKU:
- 09346444
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET
$87.56 -
MOOSE RACING Top End Gasket Kit - KTM 8100024
MOOSE RACING
$43.01A top-end rebuild demands precision-matched components that won't compromise engine integrity or performance. The MOOSE RACING Top End Gasket Kit delivers OEM-quality seals and gaskets at a fraction of manufacturer pricing, eliminating the risk of cheap...09346445- SKU:
- 09346445
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET
$43.01 -
MOOSE RACING Top End Gasket Kit - RM-Z 250 810567
MOOSE RACING
$75.98A top-end rebuild demands precision gaskets and seals that won't compromise engine integrity or reliability. The MOOSE RACING Top End Gasket Kit delivers OEM-equivalent performance at a fraction of the cost, with U.S.-manufactured components engineered...09342207- SKU:
- 09342207
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET
- TYPE:
- TOP END
$75.98 -
MOOSE RACING Top End Gasket Kit - YZ450F 810689
MOOSE RACING
$71.71A top-end rebuild demands precision-matched components—mismatched or worn gaskets will compromise compression, cause oil leakage, and accelerate wear on fresh internals. The MOOSE RACING Top End Gasket Kit eliminates guesswork by supplying every OEM-spec...09342208- SKU:
- 09342208
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- TOP END
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
$71.71 -
MOOSE RACING Complete Motor Gasket Kit - KDX220 808445
MOOSE RACING
$70.11A complete engine and transmission rebuild demands precision-fit gaskets and seals that won't compromise your KDX220's reliability. This Moose Racing kit eliminates the hassle of sourcing individual components and delivers OEM-quality seals at a fraction...M808445- SKU:
- M808445
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- COMPLETE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- KIT
- TYPE:
- ENGINE
$70.11 -
MOOSE RACING Top End Gasket Kit - CR125R 810244
MOOSE RACING
$49.60A complete top-end rebuild demands precision-matched gaskets and seals—anything less risks compression loss, oil leakage, and engine failure. The MOOSE RACING Top End Gasket Kit delivers OEM-quality seals at a fraction of factory pricing, so you can...09340454- SKU:
- 09340454
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
$49.60 -
MOOSE RACING Motor Gasket Kit with Seal - CR125R 811244
MOOSE RACING
$120.99A complete engine and transmission rebuild demands precision-engineered gaskets and seals that won't compromise your work or your wallet. MOOSE Racing delivers OEM-equivalent quality at a fraction of dealership pricing, so you can confidently reassemble...09340456- SKU:
- 09340456
- Availability:
- Ships Same Business Day
- Weight:
- 0.27 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- TYPE:
- ENGINE
- PRODUCT NAME:
- GASKET
$120.99 -
MOOSE RACING Top End Gasket Kit - SX/EXC/XL 810324
MOOSE RACING
$27.97A top-end rebuild demands precision gaskets and seals that won't compromise engine integrity or cost you a fortune. MOOSE RACING delivers OEM-equivalent performance at a fraction of OEM pricing, with every gasket, O-ring, and seal engineered for accurate...09340474- SKU:
- 09340474
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- TYPE:
- TOP END
$27.97 -
VESRAH Exhaust Gasket VE-1001
VESRAH
$11.95A reliable exhaust gasket is critical to maintaining a proper seal between your exhaust manifold and exhaust pipe—any leak will compromise both performance and emissions. The VESRAH VE-1001 delivers consistent sealing across thermal cycles, preventing...VX1001- SKU:
- VX1001
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- 10 PACK
- TYPE:
- EXHAUST
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
$11.95 -
VESRAH Complete Gasket Kit - KDX200 VG-471
VESRAH
$46.33A complete engine rebuild demands precision and reliability at every seal and gasket interface—this VESRAH kit eliminates the guesswork by bundling all necessary components into one OEM-quality package. Whether you're refreshing a tired top-end or going...VG471- SKU:
- VG471
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- TYPE:
- COMPLETE
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- SET
$46.33 -
On Sale
VESRAH Complete Gasket Kit - KX250 VG-487
VESRAH
MSRP: $40.95Now: $29.00Was: $40.95Engine rebuilds demand precision gaskets that seal properly under extreme combustion pressures—factory tolerances leave no room for leakage or blow-by. The VESRAH Complete Gasket Kit VG-487 supplies every gasket, o-ring, and valve guide oil seal needed...VG487- SKU:
- VG487
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- SET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
MSRP: $40.95Now: $29.00Was: $40.95
