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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- Price
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On Sale
VINTCO Engine Gasket Kit - Suzuki KEG072
VINTCO
MSRP: $44.95Now: $41.80Was: $44.95A failed gasket can compromise your entire engine's integrity, leading to oil leaks, coolant seepage, and catastrophic performance loss. The VINTCO Engine Gasket Kit KEG072 gives you OEM-equivalent...09347336- SKU:
- 09347336
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
MSRP: $44.95Now: $41.80Was: $44.95 -
On Sale
VINTCO Engine Gasket Kit - Suzuki KEG074
VINTCO
MSRP: $26.95Now: $25.06Was: $26.95A compromised lower engine gasket seal leads to oil leaks, combustion blow-by, and accelerated wear on critical engine components. The VINTCO KEG074 replaces the entire lower assembly gasket set with...09347337- SKU:
- 09347337
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
MSRP: $26.95Now: $25.06Was: $26.95 -
On Sale
VINTCO Engine Gasket Kit - Suzuki KEG073
VINTCO
MSRP: $47.95Now: $44.59Was: $47.95A compromised gasket seal is one of the fastest ways to lose engine integrity and invite costly leaks or contamination. The VINTCO Engine Gasket Kit for Suzuki delivers OEM-equivalent or superior...09347338- SKU:
- 09347338
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
MSRP: $47.95Now: $44.59Was: $47.95Qty in Cart: 0Quantity:Price:MSRP: $47.95Now: $44.59Was: $47.95Subtotal: -
On Sale
VINTCO Engine Gasket Kit - Suzuki KEG076
VINTCO
MSRP: $19.95Now: $18.55Was: $19.95Engine gasket degradation leads to oil leaks, compression loss, and potential internal damage—issues that compound quickly without timely replacement. The VINTCO KEG076 gasket kit delivers...09347339- SKU:
- 09347339
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
MSRP: $19.95Now: $18.55Was: $19.95 -
On Sale
VINTCO Engine Gasket Kit - Suzuki KEG077
VINTCO
MSRP: $24.95Now: $23.20Was: $24.95Engine gaskets are critical sealing components that prevent oil and coolant leaks while maintaining compression integrity—neglecting them during rebuilds or high-mileage service can lead to...09347340- SKU:
- 09347340
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
MSRP: $24.95Now: $23.20Was: $24.95 -
On Sale
VINTCO Engine Gasket Kit - Suzuki KEG078
VINTCO
MSRP: $25.95Now: $24.13Was: $25.95Engine gaskets are critical wear items that deteriorate with heat cycles and time—failing gaskets lead to oil leaks, coolant seepage, and compromised combustion efficiency. The VINTCO KEG078 kit...09347341- SKU:
- 09347341
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
MSRP: $25.95Now: $24.13Was: $25.95Qty in Cart: 0Quantity:Price:MSRP: $25.95Now: $24.13Was: $25.95Subtotal: -
On Sale
VINTCO Engine Gasket Kit - Suzuki KEG079
VINTCO
MSRP: $54.95Now: $51.10Was: $54.95Engine gasket failure compromises compression, invites oil seepage, and can force an unplanned teardown—especially critical when you're pushing your Suzuki to the limit. The VINTCO Engine Gasket Kit...09347342- SKU:
- 09347342
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
MSRP: $54.95Now: $51.10Was: $54.95 -
On Sale
VINTCO Engine Gasket Kit - Yamaha KEG030
VINTCO
MSRP: $29.95Now: $27.85Was: $29.95Engine gasket degradation compromises compression, invites oil seepage, and accelerates wear on critical internal components. The VINTCO Engine Gasket Kit KEG030 delivers a complete lower-engine...09347343- SKU:
- 09347343
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
MSRP: $29.95Now: $27.85Was: $29.95 -
On Sale
VINTCO Engine Gasket Kit - Yamaha KEG031
VINTCO
MSRP: $32.95Now: $30.64Was: $32.95A failed gasket means oil seeps, compression drops, and your engine rebuild stalls before it starts. The VINTCO Engine Gasket Kit KEG031 provides a complete set of precision-cut gaskets designed to...09347344- SKU:
- 09347344
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
MSRP: $32.95Now: $30.64Was: $32.95 -
On Sale
VINTCO Engine Gasket Kit - Yamaha KEG037
VINTCO
MSRP: $34.95Now: $32.50Was: $34.95A failing gasket seal compromises your entire lower engine assembly, leading to fluid leaks, overheating, and catastrophic engine damage. The VINTCO KEG037 Engine Gasket Kit delivers OEM-spec sealing...09347345- SKU:
- 09347345
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
MSRP: $34.95Now: $32.50Was: $34.95 -
On Sale
VINTCO Engine Gasket Kit - Yamaha KEG039
VINTCO
MSRP: $36.95Now: $34.36Was: $36.95A compromised engine gasket can turn a reliable build into a liability, allowing oil seepage and coolant loss that compound into catastrophic failures. The VINTCO Engine Gasket Kit KEG039 delivers...09347346- SKU:
- 09347346
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
MSRP: $36.95Now: $34.36Was: $36.95 -
On Sale
VINTCO Engine Gasket Kit - Yamaha KEG044
VINTCO
MSRP: $36.95Now: $34.36Was: $36.95A failed gasket can compromise your engine's integrity and lead to costly downtime. The VINTCO Engine Gasket Kit KEG044 delivers complete lower-engine sealing with materials engineered to match or...09347347- SKU:
- 09347347
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
MSRP: $36.95Now: $34.36Was: $36.95 -
On Sale
VINTCO Engine Gasket Kit - Yamaha KEG045
VINTCO
MSRP: $34.95Now: $32.50Was: $34.95Engine gaskets degrade over time, leading to oil leaks, coolant seepage, and compromised combustion sealing—all of which rob your Yamaha of performance and reliability. The VINTCO KEG045 gasket kit...09347348- SKU:
- 09347348
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
MSRP: $34.95Now: $32.50Was: $34.95Qty in Cart: 0Quantity:Price:MSRP: $34.95Now: $32.50Was: $34.95Subtotal: -
On Sale
VINTCO Oil Seal Kit - Honda KOS005
VINTCO
MSRP: $52.95Now: $49.24Was: $52.95A complete engine rebuild demands precision in every component, and sealing integrity is non-negotiable for oil retention and performance longevity. The VINTCO Oil Seal Kit ensures your Honda's lower...09347349- SKU:
- 09347349
- Availability:
- Ships Same Business Day
- Weight:
- 0.31 LBS
MSRP: $52.95Now: $49.24Was: $52.95 -
On Sale
VINTCO Oil Seal Kit - Honda KOS001
VINTCO
MSRP: $36.95Now: $34.36Was: $36.95A complete engine rebuild demands meticulous attention to every seal and gasket—and this VINTCO Oil Seal Kit eliminates guesswork by including all the lower-end seals you need to prevent leaks and...09347350- SKU:
- 09347350
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
MSRP: $36.95Now: $34.36Was: $36.95 -
On Sale
VINTCO Oil Seal Kit - Honda KOS006
VINTCO
MSRP: $45.95Now: $42.73Was: $45.95A complete engine rebuild demands precision at every sealing point—and this oil seal kit eliminates the guesswork by bundling all the critical lower-end seals your Honda engine requires. Factory...09347351- SKU:
- 09347351
- Availability:
- Ships Same Business Day
- Weight:
- 0.26 LBS
MSRP: $45.95Now: $42.73Was: $45.95 -
On Sale
VINTCO Oil Seal Kit - Kawasaki KOS016
VINTCO
MSRP: $42.95Now: $39.94Was: $42.95A complete engine rebuild demands precision in every component—and oil seals are non-negotiable for preventing leaks and maintaining proper lubrication throughout your lower end. This VINTCO kit...09347352- SKU:
- 09347352
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
MSRP: $42.95Now: $39.94Was: $42.95 -
On Sale
VINTCO Oil Seal Kit - Kawasaki KOS012
VINTCO
MSRP: $42.95Now: $39.94Was: $42.95A complete engine rebuild demands precision sealing—any leak in your crankshaft, kickstarter, or clutch release shaft can compromise performance and reliability. The VINTCO Oil Seal Kit KOS012...09347353- SKU:
- 09347353
- Availability:
- Ships Same Business Day
- Weight:
- 0.16 LBS
MSRP: $42.95Now: $39.94Was: $42.95Qty in Cart: 0Quantity:Price:MSRP: $42.95Now: $39.94Was: $42.95Subtotal: -
On Sale
VINTCO Oil Seal Kit - Honda KOS002
VINTCO
MSRP: $27.95Now: $25.99Was: $27.95A complete engine rebuild demands precision at every junction—and oil seals are where catastrophic leaks begin. The VINTCO Oil Seal Kit (KOS002) supplies all critical seals and o-rings for Honda...09347354- SKU:
- 09347354
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
MSRP: $27.95Now: $25.99Was: $27.95 -
On Sale
VINTCO Oil Seal Kit - Kawasaki KOS014
VINTCO
MSRP: $42.95Now: $39.94Was: $42.95A complete engine rebuild demands precision sealing throughout the lower end—neglecting this step invites oil leakage, contamination, and premature wear on critical components. The VINTCO Oil Seal...09347355- SKU:
- 09347355
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
MSRP: $42.95Now: $39.94Was: $42.95
