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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MOOSE RACING Gasket Clutch Inner - Kawasaki 816197
MOOSE RACING
$27.84A worn or damaged clutch gasket compromises your clutch system's seal integrity, leading to fluid leakage and unpredictable engagement. The MOOSE RACING Gasket Clutch Inner is engineered to OEM specifications for your Kawasaki, ensuring proper pressure...09346893- SKU:
- 09346893
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- TYPE:
- CLUTCH INNER
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
$27.84 -
MOOSE RACING Water Pump Rebuild Kit 821262
MOOSE RACING
$36.89A failing water pump can leave you stranded on the track or road, compromising engine cooling and reliability. This MOOSE RACING rebuild kit delivers all the critical seals, gaskets, and bearings needed to restore your water pump to OEM...09345185- SKU:
- 09345185
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- REPAIR KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- WATER PUMP
$36.89 -
VESRAH Exhaust Gasket VE-1012
VESRAH
$44.86A leaking exhaust gasket compromises both performance and emissions control, forcing your engine to work harder while wasting power. VESRAH's VE-1012 gaskets deliver a reliable seal that prevents exhaust bypass and maintains optimal back-pressure for...VX1012- SKU:
- VX1012
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- STREET
- TYPE:
- EXHAUST
- UNITS:
- 10 PACK
$44.86 -
VESRAH Exhaust Gasket VE-2004
VESRAH
$42.78A compromised exhaust gasket is an often-overlooked source of performance loss and unwanted noise. The VESRAH VE-2004 delivers a reliable, OEM-quality seal that prevents exhaust leaks, maintains proper scavenging efficiency, and eliminates the metallic...VX2004- SKU:
- VX2004
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- UNITS:
- 10 PACK
- TYPE:
- EXHAUST
- RIDING STYLE:
- STREET
$42.78 -
MOOSE RACING Exhaust Gasket Kit 823077
MOOSE RACING
$8.13A quality exhaust gasket kit is essential for maintaining a sealed exhaust system and preventing performance-robbing leaks that compromise efficiency and increase emissions. MOOSE RACING's 823077 gasket kit delivers OEM-grade reliability with...09345292- SKU:
- 09345292
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- STREET
- TYPE:
- EXHAUST
$8.13 -
MOOSE RACING Exhaust Gasket Kit 823094
MOOSE RACING
$8.13A quality exhaust gasket kit is essential for maintaining a sealed exhaust system and preventing power-robbing leaks that compromise performance and create annoying rattles. The MOOSE RACING 823094 provides OEM-grade sealing across critical exhaust...09345295- SKU:
- 09345295
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- EXHAUST
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
$8.13 -
MOOSE RACING Top End Gasket Kit - Huqvarna/KTM 810370
MOOSE RACING
$70.25A top-end rebuild demands precision gaskets and seals that won't compromise your engine's integrity or your wallet. The MOOSE RACING Top End Gasket Kit delivers OEM-quality components at a fraction of the cost, giving you the confidence to reassemble...09345360- SKU:
- 09345360
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- GASKET
- TYPE:
- TOP END
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$70.25 -
MOOSE RACING Top End Gasket Kit - Husqvarna/KTM 810372
MOOSE RACING
$81.70A top-end rebuild demands precision and reliability—MOOSE RACING gasket kits deliver both at a fraction of OEM pricing. Each set is engineered with high-tech materials to withstand engine stress while maintaining exact fitment, ensuring your rebuild...09345361- SKU:
- 09345361
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- UNITS:
- KIT
$81.70 -
MOOSE RACING Top End Gasket Kit - Husqvarna/KTM 810373
MOOSE RACING
$70.36A top-end rebuild demands 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-quality components at a fraction of the price, letting you restore compression and...09345362- SKU:
- 09345362
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
- TYPE:
- TOP END
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$70.36 -
MOOSE RACING Top End Gasket Kit - Husqvarna/KTM 810374
MOOSE RACING
$73.09A top-end rebuild demands precision gaskets and seals that won't fail under race conditions or heavy use. The MOOSE RACING Top End Gasket Kit delivers OEM-equivalent reliability at a fraction of the cost, letting you rebuild your Husqvarna or KTM engine...09345363- SKU:
- 09345363
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- STREET
$73.09 -
MOOSE RACING Top End Gasket Kit - Kawasaki 810485
MOOSE RACING
$81.81A 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-quality components at a fraction of the cost, letting you rebuild with confidence whether you're...09345364- SKU:
- 09345364
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET
$81.81 -
MOOSE RACING Top End Gasket Kit - KTM 810976
MOOSE RACING
$71.76Whether you're rebuilding after a piston replacement or performing routine top-end maintenance, a quality gasket kit is non-negotiable for engine reliability. The MOOSE RACING Top End Gasket Kit delivers OEM-equivalent sealing with domestic manufacturing...09345365- SKU:
- 09345365
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
- TYPE:
- TOP END
- RIDING STYLE:
- OFF-ROAD
$71.76 -
MOOSE RACING Motor Gasket Kit with Seal - PW50 811601
MOOSE RACING
$30.09A complete engine and transmission rebuild demands precision gaskets and seals that won't compromise your engine's integrity or your budget. The Moose Racing Motor Gasket Kit eliminates the guesswork and expense of sourcing individual components—you get...09340118- SKU:
- 09340118
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- TYPE:
- ENGINE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
$30.09 -
MOOSE RACING Complete Motor Gasket Kit - CR125 808233
MOOSE RACING
$37.82A complete engine and transmission rebuild demands precision gaskets and seals that won't compromise your work—especially when you're investing time and money into a fresh motor. The MOOSE RACING Complete Motor Gasket Kit delivers OEM-quality components...M808233- SKU:
- M808233
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- TYPE:
- ENGINE
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
$37.82 -
MOOSE RACING Complete Motor Gasket Kit - CR125 808235
MOOSE RACING
$58.40A complete engine and transmission rebuild demands precision-fit gaskets that won't compromise reliability or performance. The MOOSE RACING Complete Motor Gasket Kit eliminates the guesswork of sourcing individual components, giving you every seal,...M808235- SKU:
- M808235
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
- TYPE:
- ENGINE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
$58.40 -
MOOSE RACING Complete Motor Gasket Kit - CR125R 808237
MOOSE RACING
$75.94A complete engine rebuild requires precision gasket and seal fitment—any compromise risks compression loss, oil seepage, and catastrophic engine failure. The MOOSE RACING Complete Motor Gasket Kit for CR125R eliminates guesswork with OEM-quality...M808237- SKU:
- M808237
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
- PRODUCT NAME:
- GASKET
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- TYPE:
- ENGINE
$75.94 -
MOOSE RACING Complete Motor Gasket Kit - CR250 808259
MOOSE RACING
$68.81A complete engine and transmission rebuild demands gasket and seal integrity you can trust—compromised seals lead to oil leaks, loss of compression, and catastrophic engine failure. The MOOSE RACING Complete Motor Gasket Kit delivers OEM-equivalent...M808259- SKU:
- M808259
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- TYPE:
- ENGINE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET
$68.81 -
MOOSE RACING Complete Motor Gasket Kit - CRF450 808267
MOOSE RACING
$149.21A complete engine rebuild requires precision gaskets and seals that won't compromise your CRF450's reliability. This Moose Racing kit eliminates the frustration of sourcing individual components by bundling everything you need for a full engine and...M808267- SKU:
- M808267
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- TYPE:
- ENGINE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET
$149.21 -
MOOSE RACING Complete Motor Gasket Kit - XR50 808209
MOOSE RACING
$64.22A complete engine and transmission rebuild demands gasket and seal integrity—compromising here means risking oil leaks, compression loss, and costly downtime. The MOOSE RACING Complete Motor Gasket Kit delivers OEM-quality components at a fraction of...09340129- SKU:
- 09340129
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TYPE:
- ENGINE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET
$64.22 -
MOOSE RACING Complete Motor Gasket Kit - XR70 808210
MOOSE RACING
$64.22A complete engine and transmission rebuild demands precision-fit gaskets and seals that won't compromise your work. This Moose Racing kit eliminates the guesswork and expense of sourcing individual components—you get everything needed in one set, with...09340130- SKU:
- 09340130
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- GASKET
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- TYPE:
- ENGINE
$64.22
