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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On Sale
VESRAH Complete Gasket Kit - KDX80 VG-489
VESRAH
MSRP: $32.97Now: $31.32Was: $32.97A complete engine rebuild demands precision—gasket failure is one of the fastest ways to lose compression, leak fluids, and compromise engine integrity. The VESRAH Complete Gasket Kit (VG-489)...VG489- SKU:
- VG489
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- TYPE:
- COMPLETE
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- SET
MSRP: $32.97Now: $31.32Was: $32.97 -
MOOSE RACING Inner Clutch Cover Gasket 816194
MOOSE RACING
$18.03A leaking clutch cover gasket compromises engine integrity and invites oil seepage that can damage surrounding components. The MOOSE RACING Inner Clutch Cover Gasket 816194 delivers OEM-equivalent...09346126- SKU:
- 09346126
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- UNITS:
- EACH
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH COVER
$18.03 -
MOOSE RACING Inner Clutch Cover Gasket 816251
MOOSE RACING
$20.86A leaking clutch cover gasket compromises engine sealing and invites oil contamination into critical drivetrain components. The MOOSE RACING Inner Clutch Cover Gasket 816251 delivers OEM-equivalent...09346131- SKU:
- 09346131
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH COVER
- UNITS:
- EACH
$20.86 -
MOOSE RACING Inner Clutch Cover Gasket 816272
MOOSE RACING
$17.74A worn or damaged inner clutch cover gasket will compromise engine sealing and lead to oil leakage, performance loss, and potential internal damage. The MOOSE RACING 816272 delivers OEM-equivalent...09346136- SKU:
- 09346136
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH COVER
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
$17.74 -
MOOSE RACING Water Pump Rebuild Kit 821998
MOOSE RACING
$53.56A failing water pump doesn't just compromise cooling efficiency—it can leave you stranded mid-race or mid-drive with catastrophic engine damage. The MOOSE RACING Water Pump Rebuild Kit 821998 gives...09346542- SKU:
- 09346542
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- REPAIR KIT
- TYPE:
- WATER PUMP
$53.56 -
MOOSE RACING Clutch Cover Gasket 816143
MOOSE RACING
$15.23A leaking clutch cover gasket compromises both engine performance and reliability—oil seepage leads to contamination, wear, and potential catastrophic failure. The MOOSE RACING Clutch Cover Gasket...09341449- SKU:
- 09341449
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CLUTCH COVER
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
$15.23 -
MOOSE RACING Ignition Cover Gasket 816144
MOOSE RACING
$8.80Ignition cover gaskets fail silently—until oil starts seeping onto your engine bay and performance suffers. The MOOSE RACING 816144 eliminates guesswork with OEM-spec sealing geometry at a fraction...09341450- SKU:
- 09341450
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- IGNITION COVER
$8.80 -
MOOSE RACING Top End Gasket Kit - Husqvarna/KTM 810959
MOOSE RACING
$71.55A top-end rebuild demands precision—incorrect gasket fitment or inferior seal materials will compromise compression, leak oil, and waste your time and money. The MOOSE RACING Top End Gasket Kit...09344771- SKU:
- 09344771
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- TOP END
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$71.55 -
MOOSE RACING Top End Gasket Kit - Kawasaki 810483
MOOSE RACING
$30.62A top-end rebuild demands precision components that won't compromise reliability or performance. The MOOSE RACING Gasket Kit delivers OEM-quality seals and gaskets at a fraction of the cost, letting...09344772- SKU:
- 09344772
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- TOP END
$30.62 -
MOOSE RACING Top End Gasket Kit - Kawasaki 810484
MOOSE RACING
$30.06When you're rebuilding a top end, cutting corners on gaskets and seals is a guaranteed path to failure. The MOOSE RACING Top End Gasket Kit gives you everything needed for a complete, reliable...09344773- SKU:
- 09344773
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
- TYPE:
- TOP END
- RIDING STYLE:
- OFF-ROAD
$30.06Qty in Cart: 0Quantity:Price:$30.06Subtotal: -
MOOSE RACING Top End Gasket Kit - Yamaha 810642
MOOSE RACING
$54.04A quality top-end rebuild requires precision gaskets and seals that won't compromise your engine's integrity or cost you a fortune. The MOOSE RACING Top End Gasket Kit delivers OEM-equivalent...09344774- SKU:
- 09344774
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- TYPE:
- TOP END
$54.04 -
MOOSE RACING Top End Gasket - CRF250 810262
MOOSE RACING
$76.95A top-end rebuild demands precision gaskets and seals that won't compromise your engine's integrity or cost you a fortune. The MOOSE RACING gasket set gives you OEM-equivalent seals at a fraction of...09340071- SKU:
- 09340071
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET
- TYPE:
- TOP END
$76.95 -
MOOSE RACING Top End Gasket - PW50 810601
MOOSE RACING
$13.39A top-end rebuild demands precision gaskets and seals that won't compromise your engine's integrity or your wallet. MOOSE RACING delivers OEM-equivalent performance at a fraction of the cost, with...09340078- SKU:
- 09340078
- Availability:
- Ships Same Business Day
- Weight:
- 0.28 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- TOP END
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
$13.39 -
MOOSE RACING Top End Gasket - PW80 810615
MOOSE RACING
$26.26A top-end rebuild demands precision gaskets and seals that won't fail under race conditions or repeated heat cycles. The MOOSE RACING Top End Gasket Set delivers OEM-equivalent reliability at a...09340079- SKU:
- 09340079
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- TYPE:
- TOP END
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET
$26.26 -
MOOSE RACING Top End Gasket - TTR125 810640
MOOSE RACING
$39.34When you're rebuilding a TTR125 top end, OEM gasket kits carry a premium price tag—and compromise on quality isn't an option. The MOOSE RACING Top End Gasket Set gives you OEM-spec reliability at a...09340080- SKU:
- 09340080
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET
$39.34 -
On Sale
VESRAH Top End Gasket Kit - TW 200 VG-6129-M
VESRAH
MSRP: $80.28Now: $76.27Was: $80.28A top-end rebuild demands precision gaskets that seal consistently under extreme combustion pressures—anything less risks compression loss and catastrophic engine failure. The VESRAH Top End Gasket...VG6129M- SKU:
- VG6129M
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- TYPE:
- TOP END
- UNITS:
- SET
MSRP: $80.28Now: $76.27Was: $80.28Qty in Cart: 0Quantity:Price:MSRP: $80.28Now: $76.27Was: $80.28Subtotal: -
On Sale
VESRAH Top End Gasket Kit - YZ 125 VG-6138
VESRAH
MSRP: $41.93Now: $39.83Was: $41.93A top-end rebuild demands precision gaskets that seal consistently under extreme combustion pressures—compromising here means risking blow-by, oil leakage, and lost performance. The VESRAH VG-6138...VG6138- SKU:
- VG6138
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- UNITS:
- SET
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
MSRP: $41.93Now: $39.83Was: $41.93 -
On Sale
VESRAH Top End Gasket Kit - Yamaha 500 VG-674
VESRAH
MSRP: $55.67Now: $52.89Was: $55.67Engine gasket failure is one of the most common causes of performance loss and reliability issues in rebuilt engines. The VESRAH VG-674 Top End Gasket Kit ensures proper sealing across all critical...VG674- SKU:
- VG674
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- SET
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- STREET
MSRP: $55.67Now: $52.89Was: $55.67 -
On Sale
VESRAH Complete Gasket Kit - CT90 VG-168
VESRAH
MSRP: $35.95Now: $34.15Was: $35.95A failed gasket can sideline your engine and drain your wallet fast. This complete gasket kit eliminates guesswork during rebuilds by delivering every seal, o-ring, and gasket you need in one...VG168- SKU:
- VG168
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- PRODUCT NAME:
- GASKET
- UNITS:
- SET
MSRP: $35.95Now: $34.15Was: $35.95 -
On Sale
VESRAH Complete Gasket Kit - XL250S VG-185
VESRAH
MSRP: $87.40Now: $83.03Was: $87.40A complete engine rebuild demands precision gaskets that seal reliably under extreme combustion pressures—this VESRAH kit eliminates the risk of hunting down individual components and guarantees...VG185- SKU:
- VG185
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- TYPE:
- COMPLETE
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- SET
MSRP: $87.40Now: $83.03Was: $87.40
