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!
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- Qty in Cart
- Quantity
- Price
- Subtotal
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On Sale
VESRAH Complete Gasket Kit - Z50 R VG-1006
VESRAH
MSRP: $47.95Now: $45.55Was: $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...VG1006- SKU:
- VG1006
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
- UNITS:
- SET
- PRODUCT NAME:
- GASKET
- TYPE:
- COMPLETE
- RIDING STYLE:
- OFF-ROAD
MSRP: $47.95Now: $45.55Was: $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...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...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...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...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...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...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...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...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...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...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...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...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...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...09340454- SKU:
- 09340454
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
$49.60Qty in Cart: 0Quantity:Price:$49.60Subtotal: -
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...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...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 -
On Sale
VESRAH Exhaust Gasket VE-1001
VESRAH
MSRP: $11.95Now: $11.35Was: $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...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
MSRP: $11.95Now: $11.35Was: $11.95 -
On Sale
VESRAH Complete Gasket Kit - KDX200 VG-471
VESRAH
MSRP: $46.33Now: $44.01Was: $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...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
MSRP: $46.33Now: $44.01Was: $46.33 -
On Sale
VESRAH Complete Gasket Kit - KX250 VG-487
VESRAH
MSRP: $40.95Now: $38.90Was: $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...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: $38.90Was: $40.95Qty in Cart: 0Quantity:Price:MSRP: $40.95Now: $38.90Was: $40.95Subtotal:
