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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MOOSE OFFROAD Exhaust Gasket Kit - KTM 823195MSE
MOOSE OFFROAD
$16.37Exhaust gasket deterioration is one of the most common causes of performance loss and exhaust leaks on KTM 4-stroke engines. A failing gasket compromises seal integrity, allowing unburned fuel to escape and throwing off your air-fuel ratio—resulting in...09347191- SKU:
- 09347191
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$16.37 -
VINTCO Top End Gasket Kit - Honda KTE010
VINTCO
$37.95A failed top end gasket can compromise cylinder compression, cause coolant leaks, and force an engine back into the shop. The VINTCO KTE010 delivers OEM-equivalent sealing with precision-engineered gaskets that maintain reliability through...09347223- SKU:
- 09347223
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$37.95 -
VINTCO Top End Gasket Kit - Honda KTE008
VINTCO
$39.95A leaking top end gasket can compromise compression, waste fuel, and force you to abandon a build mid-season. The VINTCO KTE008 Top End Gasket Kit supplies all critical sealing surfaces needed for a complete top end rebuild, manufactured to OEM or better...09347225- SKU:
- 09347225
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$39.95 -
VINTCO Top End Gasket Kit - Suzuki KTE024
VINTCO
$39.95A top-end gasket kit is essential when rebuilding or refreshing your Suzuki engine—worn gaskets are a common source of oil leaks, compression loss, and coolant seepage that compromise performance and reliability. The VINTCO KTE024 delivers OEM-equivalent...09347226- SKU:
- 09347226
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$39.95 -
VINTCO Top End Gasket Kit - Yamaha KTE042
VINTCO
$39.95A failed top end gasket can compromise compression, cause oil leaks, and derail your rebuild before it even runs. The VINTCO KTE042 Top End Gasket Kit delivers OEM-equivalent sealing reliability without the OEM price tag, ensuring your Yamaha engine...09347227- SKU:
- 09347227
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$39.95 -
VINTCO Top End Gasket Kit - Yamaha KTE043
VINTCO
$54.95A top-end gasket failure can quickly derail your build and cost you valuable track time. The VINTCO Top End Gasket Kit gives you all the critical sealing surfaces needed for a leak-free, reliable top-end assembly without sourcing individual gaskets from...09347229- SKU:
- 09347229
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$54.95 -
VINTCO Top End Gasket Kit - Suzuki KTE023
VINTCO
$24.95A failing top end gasket can compromise combustion seal integrity and lead to coolant or oil seepage—both expensive problems if left unchecked. The VINTCO KTE023 kit eliminates guesswork by bundling all critical gaskets needed for a complete top end...09347230- SKU:
- 09347230
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$24.95 -
VINTCO Top End Gasket Kit - Honda KTE001
VINTCO
$49.95A top end gasket kit is essential when rebuilding or refreshing your Honda's cylinder head—worn or degraded gaskets will compromise compression, cause oil seepage, and undermine engine reliability. The VINTCO KTE001 delivers OEM-equivalent sealing...09347231- SKU:
- 09347231
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
$49.95 -
VINTCO Top End Gasket Kit - Husqvarna KTE051
VINTCO
$24.95A failed top end gasket can compromise combustion sealing and lead to oil leakage, coolant mixing, and catastrophic engine damage. The VINTCO KTE051 Top End Gasket Kit ensures reliable sealing with materials engineered to match or exceed OEM...09347232- SKU:
- 09347232
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$24.95 -
VINTCO Top End Gasket Kit - Yamaha KTE035
VINTCO
$51.95A top-end rebuild demands precision gaskets that seal consistently under load and thermal cycling. The VINTCO KTE035 kit eliminates sourcing individual gaskets from multiple suppliers, giving you a complete, OEM-spec solution in one package. This is...09347234- SKU:
- 09347234
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
$51.95 -
VINTCO Top End Gasket Kit - Kawasaki KTE016
VINTCO
$31.95A failing top end gasket compromises compression and invites oil leakage—both enemies of engine reliability and performance. The VINTCO KTE016 kit delivers OEM-equivalent sealing surfaces with precision-engineered gaskets designed specifically for...09347236- SKU:
- 09347236
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$31.95 -
VINTCO Top End Gasket Kit - Suzuki KTE021
VINTCO
$39.95A leaking or worn top end gasket kit compromises your Suzuki's compression, power delivery, and longevity. The VINTCO KTE021 delivers OEM-equivalent sealing performance without the OEM price tag, ensuring your rebuild holds pressure and performs reliably...09347237- SKU:
- 09347237
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$39.95 -
VINTCO Top End Gasket Kit - Yamaha KTE046
VINTCO
$51.95A failed top end gasket can compromise your entire engine's integrity, leading to coolant leaks, oil seepage, and catastrophic performance loss. The VINTCO KTE046 Top End Gasket Kit delivers OEM-matching precision and superior sealing capabilities to...09347238- SKU:
- 09347238
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$51.95 -
VINTCO Top End Gasket Kit - Honda KTE006
VINTCO
$46.95A top-end gasket failure can compromise your entire engine build, leading to oil seepage, compression loss, and costly downtime. The VINTCO Top End Gasket Kit delivers OEM-equivalent or superior sealing performance using modern materials and precision...09347239- SKU:
- 09347239
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
$46.95 -
VINTCO Top End Gasket Kit - Husqvarna KTE052
VINTCO
$29.95A worn or degraded top end gasket set will compromise combustion sealing and cause coolant or oil leakage, directly impacting engine reliability and performance. The VINTCO KTE052 Top End Gasket Kit delivers OEM-specification sealing with...09347242- SKU:
- 09347242
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$29.95 -
VINTCO Top End Gasket Kit - Yamaha KTE029
VINTCO
$44.95A failing top end gasket will compromise your engine's sealing integrity and lead to oil leakage, loss of compression, and eventual catastrophic failure. The VINTCO KTE029 provides OEM-specification gaskets in a complete kit, eliminating the risk of...09347243- SKU:
- 09347243
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$44.95 -
VINTCO Top End Gasket Kit - Yamaha KTE034
VINTCO
$24.95A failed gasket seal compromises compression and invites oil leakage—both killers for engine reliability and performance. The VINTCO KTE034 delivers OEM-equivalent sealing integrity without the OEM price tag, making it essential for any serious top-end...09347244- SKU:
- 09347244
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
$24.95 -
VINTCO Top End Gasket Kit - Honda KTE004
VINTCO
$39.95A proper top-end gasket kit is non-negotiable when rebuilding or refreshing your Honda's cylinder head. Factory gaskets degrade over time, leading to compression loss, oil seepage, and potential coolant leaks that compromise engine reliability. The...09347246- SKU:
- 09347246
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$39.95 -
VINTCO Top End Gasket Kit - Suzuki KTE019
VINTCO
$27.95A leaking or deteriorated top end gasket kit compromises compression, causes oil seepage, and forces you into costly engine repairs down the line. The VINTCO KTE019 delivers a complete gasket solution engineered to Suzuki OEM specifications, so you can...09347247- SKU:
- 09347247
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$27.95 -
VINTCO Top End Gasket Kit - Yamaha KTE030
VINTCO
$44.95A top end rebuild demands precision—gasket failure under boost or high RPM can compromise seal integrity and cost you valuable track time. The VINTCO KTE030 delivers OEM-spec gasket materials engineered to maintain consistent compression sealing across...09347248- SKU:
- 09347248
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
$44.95
