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
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MOOSE OFFROAD Gasket Clutch Inner - Honda 332003MSE
MOOSE OFFROAD
$22.14Gasket Clutch Inner - 332003MSE High-quality replacement gasket for Honda vehicles Designed to effectively seal ignition covers and clutches Manufactured in the U.S.A. for superior durability Precision-engineered for a perfect fit and...09346908- SKU:
- 09346908
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
$22.14 -
MOOSE OFFROAD Outer Clutch Cover Gasket - Honda 819160MSE
MOOSE OFFROAD
$6.94Outer Clutch Cover Gasket - Honda Individually sold gaskets are great when replacing a clutch or to seal a leaky ignition cover, Made in the USA09346921- SKU:
- 09346921
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
$6.94 -
MOOSE OFFROAD Complete Gasket Set - Yamaha 8080037MSE
MOOSE OFFROAD
$138.60Complete Gasket Set - Yamaha Set includes all gaskets and O-rings necessary to rebuild the entire engine and transmission; valve seals also included, Complete sets include formed valve cover gasket and oil seals, Non-complete sets do not include formed...09346924- SKU:
- 09346924
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
$138.60 -
MOOSE OFFROAD Complete Gasket Set 808616MSE
MOOSE OFFROAD
$63.69Complete Gasket Set 808616MSE Comprehensive gasket and O-ring set for complete engine and transmission rebuilds. Includes essential valve seals for optimal performance. Complete sets feature formed valve cover gaskets and oil seals for a...09346925- SKU:
- 09346925
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$63.69 -
MOOSE OFFROAD Complete Gasket Set - Yamaha 808691MSE
MOOSE OFFROAD
$122.27Complete Gasket Set - 808691MSE Comprehensive kit for complete engine and transmission rebuilds. Includes all essential gaskets and O-rings for a seamless fit. Valve seals included for enhanced performance and reliability. Complete sets...09346926- SKU:
- 09346926
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
$122.27 -
MOOSE OFFROAD Top End Gasket Kit - Yamaha 8100031MSE
MOOSE OFFROAD
$83.08Top End Gasket Kit - Yamaha Moose can now handle all your gasket and seal needs at a fraction of OEM cost, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as each set is...09346927- SKU:
- 09346927
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$83.08 -
MOOSE OFFROAD Gasket Set with Seals - Yamaha 811691MSE
MOOSE OFFROAD
$170.21Gasket Set with Seals - Yamaha Set includes all gaskets and O-rings necessary to rebuild the entire engine and transmission; valve seals also included, Complete sets include formed valve cover gasket and oil seals, Non-complete sets do not include formed...09346928- SKU:
- 09346928
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
$170.21 -
MOOSE OFFROAD Gasket Clutch Inner - Yamaha 816097MSE
MOOSE OFFROAD
$10.93Gasket Clutch Inner - Yamaha Used to replace a clutch or to seal a leaky ignition cover, Made in the U.S.A.09346931- SKU:
- 09346931
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
$10.93 -
MOOSE OFFROAD Complete Motor Gasket Kit - Suzuki 808547MSE
MOOSE OFFROAD
$63.58Complete Motor Gasket Kit - Suzuki Moose can now handle all your gasket and seal needs at a fraction of OEM cost., High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as each set is...09340132- SKU:
- 09340132
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$63.58 -
MOOSE OFFROAD Top End Gasket Kit - Suzuki 810584MSE
MOOSE OFFROAD
$33.22Top End Gasket Kit - Suzuki 810584MSE Cost-effective solution for all your gasket and seal requirements. High-tech materials ensure exceptional reliability and performance. Designed for accurate fit, providing confidence in engine and...M810584- SKU:
- M810584
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$33.22 -
MOOSE OFFROAD Top End Gasket Kit - Yamaha 810659MSE
MOOSE OFFROAD
$31.79Top End Gasket Kit - Yamaha Moose can now handle all your gasket and seal needs at a fraction of OEM cost, High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as each set is...M810662- SKU:
- M810662
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
$31.79 -
MOOSE OFFROAD Motor Gasket Kit with Oil Seal - Honda 811261MSE
MOOSE OFFROAD
$104.86Motor Gasket Kit with Oil Seal - 811261MSE Complete gasket and seal set designed for Honda engines Durable construction ensures longevity and reliability OEM replacement oil seals for optimal performance Includes all necessary gaskets...M811261- SKU:
- M811261
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$104.86Qty in Cart: 0Quantity:Price:$104.86Subtotal: -
MOOSE OFFROAD Water Pump Rebuild Kit - Honda 821989MSE
MOOSE OFFROAD
$54.67Water Pump Rebuild Kit - 821989MSE Comprehensive kit for rebuilding Honda water pumps. Includes all necessary gaskets, O-rings, bearings, and seals. Features rubber seals and mechanical water pump seals where applicable. Side cover...09345910- SKU:
- 09345910
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$54.67 -
MOOSE OFFROAD Motor Gasket Kit with Oil Seal - Kawasaki 811470MSE
MOOSE OFFROAD
$72.06Motor Gasket Kit with Oil Seal - Kawasaki Moose can now handle all your gasket and seal needs at a fraction of OEM cost, Rebuild the engine and transmission with total confidence as each set is designed for durability and accurate fit, Oil seals are...M811470- SKU:
- M811470
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
$72.06 -
MOOSE OFFROAD Motor Gasket Kit with Oil Seal - Suzuki 811548MSE
MOOSE OFFROAD
$77.30Motor Gasket Kit with Oil Seal - Suzuki Moose can now handle all your gasket and seal needs at a fraction of OEM cost, Rebuild the engine and transmission with total confidence as each set is designed for durability and accurate fit, Oil seals are...M811548- SKU:
- M811548
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
$77.30 -
MOOSE OFFROAD Top End Gasket Kit - Honda 810256MSE
MOOSE OFFROAD
$34.60Top End Gasket Kit - Honda 810256MSE Cost-effective solution for all your gasket and seal requirements. Made from high-tech materials ensuring superior reliability and performance. Designed for complete engine and transmission rebuilds with...M810256- SKU:
- M810256
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
$34.60 -
MOOSE OFFROAD Top End Gasket Kit - Honda 810267MSE
MOOSE OFFROAD
$80.26Top End Gasket Kit - Honda 810267MSE Cost-effective solution for all your gasket and seal requirements. Manufactured with high-tech materials for superior reliability and performance. Engine and transmission rebuilds made easy with a precise...M810267- SKU:
- M810267
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$80.26 -
MOOSE OFFROAD Complete Motor Gasket Kit - Kawasaki/Suzuki 808416MSE
MOOSE OFFROAD
$19.39Complete Motor Gasket Kit - Kawasaki/Suzuki Moose can now handle all your gasket and seal needs at a fraction of OEM cost., High-tech materials provide unmatched reliability and performance, Rebuild the engine and transmission with total confidence as...09340484- SKU:
- 09340484
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$19.39 -
MOOSE OFFROAD Water Pump Rebuild Kit - Honda 8210012MSE
MOOSE OFFROAD
$57.20Water Pump Rebuild Kit - Honda Includes every gasket, O-ring, bearing and seal required to rebuild a water pump, Kit includes the following: bearings where applicable; rubber seals; mechanical water pump seal where applicable; side cover gasket; water...09346693- SKU:
- 09346693
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
$57.20 -
MOOSE OFFROAD Water Pump Rebuild Kit - Gas Gas/Husqvarna/KTM 8210024MSE
MOOSE OFFROAD
$63.53Water Pump Rebuild Kit - Gas Gas/Husqvarna/KTM Includes every gasket, O-ring, bearing and seal required to rebuild a water pump, Kit includes the following: bearings where applicable; rubber seals; mechanical water pump seal where applicable; side cover...09346694- SKU:
- 09346694
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
$63.53
