Dirt Bike Engine
Explore our selection for dirt bike parts for adding horsepower or reliability to a dirt bike's engine. We feature engine parts from Wiseco, Vertex, and more common engine part manufacturers. Get new pistons and gasket kits for re-freshening engines to withstand any conditions you put your bike through!
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COMETIC Top End Gasket Set C7944-EST
COMETIC
$95.95COMETIC Top End Gasket Set C7944-ESTTop end gasket kits include correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS head gaskets promote an even torque load across the gasket...09342426- SKU:
- 09342426
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- TOP END
- BORE SIZE METRIC:
- 95.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- STREET
$95.95 -
COMETIC Top End Gasket Set C3268-EST
COMETIC
$92.95COMETIC Top End Gasket Set C3268-ESTTop end gasket kits include correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS head gaskets promote an even torque load across the gasket...09342420- SKU:
- 09342420
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- GASKET KIT
- BORE SIZE METRIC:
- 96.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- TOP END
$92.95 -
COMETIC Top End Gasket Set C3267-EST
COMETIC
$100.95COMETIC Top End Gasket Set C3267-ESTTop end gasket kits include correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS head gaskets promote an even torque load across the gasket...09342414- SKU:
- 09342414
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- BORE SIZE METRIC:
- 78.00 MM
- TYPE:
- TOP END
$100.95 -
COMETIC Top End Gasket Set C7924-EST
COMETIC
$108.95COMETIC Top End Gasket Set C7924-ESTTop end gasket kits include correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS head gaskets promote an even torque load across the gasket...09342410- SKU:
- 09342410
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BORE SIZE METRIC:
- 87.00 MM
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
- TYPE:
- TOP END
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$108.95 -
COMETIC Top End Gasket Set C3187-EST
COMETIC
$64.95COMETIC Top End Gasket Set C3187-ESTTop end gasket kits include correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS head gaskets promote an even torque load across the gasket...09342405- SKU:
- 09342405
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BORE SIZE METRIC:
- 66.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- TOP END
$64.95 -
COMETIC Top End Gasket Set C3416
COMETIC
$47.95COMETIC Top End Gasket Set C3416Top end gasket kits include correct base, head gasket and cylinder O-rings as well as other top end specific O-rings or seals needed for R&R of top end, MLS head gaskets promote an even torque load across the gasket...09342395- SKU:
- 09342395
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- BORE SIZE METRIC:
- 45.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
$47.95 -
On Sale
CYLINDER WORKS Big Bore Gasket Kit 23001-G01
CYLINDER WORKS
MSRP: $91.95Now: $84.56Was: $94.95CYLINDER WORKS Big Bore Gasket Kit 23001-G01Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced...09342387- SKU:
- 09342387
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- UTV
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
- STYLE:
- BIG BORE
- UNITS:
- KIT
MSRP: $91.95Now: $84.56Was: $94.95 -
On Sale
CYLINDER WORKS Big Bore Gasket Kit 11007-G01
CYLINDER WORKS
MSRP: $85.95Now: $77.36Was: $85.95CYLINDER WORKS Big Bore Gasket Kit 11007-G01Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced...09342383- SKU:
- 09342383
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MATERIAL:
- NICKEL SILICON CARBIDE
- BORE SIZE METRIC:
- OVERSIZED (+3.00 MM)
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
- STYLE:
- BIG BORE
MSRP: $85.95Now: $77.36Was: $85.95 -
On Sale
CYLINDER WORKS Big Bore Gasket Kit 51002-G01
CYLINDER WORKS
MSRP: $117.95Now: $107.96Was: $120.95CYLINDER WORKS Big Bore Gasket Kit 51002-G01Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced...09342370- SKU:
- 09342370
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MATERIAL:
- NICKEL SILICON CARBIDE
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- BIG BORE
- UNITS:
- KIT
- TYPE:
- TOP END
MSRP: $117.95Now: $107.96Was: $120.95 -
On Sale
CYLINDER WORKS Big Bore Gasket Kit 51001-G01
CYLINDER WORKS
MSRP: $122.95Now: $112.46Was: $125.95CYLINDER WORKS Big Bore Gasket Kit 51001-G01Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced...09342369- SKU:
- 09342369
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- MATERIAL:
- NICKEL SILICON CARBIDE
- STYLE:
- BIG BORE
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
MSRP: $122.95Now: $112.46Was: $125.95 -
On Sale
ATHENA Top End Gasket Kit - KTM P400270600028
ATHENA
MSRP: $73.95Now: $66.56Was: $73.95ATHENA Top End Gasket Kit KTM P400270600028Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason. Gives the rider a choice of using standard gas with stock compression, or race gas...09342346- SKU:
- 09342346
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- TYPE:
- TOP END
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
MSRP: $73.95Now: $66.56Was: $73.95 -
On Sale
ATHENA Top End Gasket Kit - KTM P400270600019
ATHENA
MSRP: $108.95Now: $98.06Was: $108.95ATHENA Top End Gasket Kit KTM P400270600019Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason. Gives the rider a choice of using standard gas with stock compression, or race gas...09342345- SKU:
- 09342345
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- TYPE:
- TOP END
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- GASKET KIT
MSRP: $108.95Now: $98.06Was: $108.95 -
On Sale
ATHENA Top End Gasket Kit - KTM P400270600045
ATHENA
MSRP: $47.95Now: $43.16Was: $47.95ATHENA Top End Gasket Kit KTM P400270600045Specifically designed for the pro, semi-pro and amateur rider who freshens up their engine prior to a race or during midseason. Gives the rider a choice of using standard gas with stock compression, or race gas...09342341- SKU:
- 09342341
- Availability:
- Ships Same Business Day
- Weight:
- 0.13 LBS
- UNITS:
- KIT
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
MSRP: $47.95Now: $43.16Was: $47.95 -
On Sale
ATHENA Complete Gasket Kit - KTM P400270850045
ATHENA
MSRP: $110.95Now: $99.86Was: $110.95ATHENA Complete Gasket Kit KTM P400270850045Superior-quality gasket sets from Athena, Head gaskets feature rubber-coated spring steel construction, Soft steel base gaskets are rubber coated, Steel core materials feature high springback and superior...09342337- SKU:
- 09342337
- Availability:
- Ships Same Business Day
- Weight:
- 0.32 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- ENGINE TYPE:
- -
- UNITS:
- KIT
MSRP: $110.95Now: $99.86Was: $110.95 -
On Sale
ATHENA Gasket Kit - CRF150R P400210160019
ATHENA
MSRP: $55.95Now: $50.36Was: $55.95ATHENA Gasket Kit CRF150R P400210160019Kits include aluminum cylinder with nickel-carbide coating designed with larger water jackets, Forged piston with molybdenum coating, Special gasket kit, Easy-to-follow step-by-step installation instructions, All...09341968- SKU:
- 09341968
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- PRODUCT NAME:
- GASKET KIT
- BORE SIZE METRIC:
- 69.00 MM
- TYPE:
- TOP END
- BORE SIZE:
- 69,00 MM
- DISPLACEMENT:
- 163.5 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $55.95Now: $50.36Was: $55.95 -
On Sale
ATHENA Complete Gasket Kit - Kawasaki P400250850024
ATHENA
MSRP: $176.95Now: $159.26Was: $176.95ATHENA Complete Gasket Kit Kawasaki P400250850024Superior-quality gasket sets from Athena, Head gaskets feature rubber-coated spring steel construction, Soft steel base gaskets are rubber coated, Steel core materials feature high springback and superior...09341964- SKU:
- 09341964
- Availability:
- Ships Same Business Day
- Weight:
- 0.38 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- RIDING STYLE:
- STREET
- ENGINE TYPE:
- -
- PRODUCT NAME:
- GASKET KIT
MSRP: $176.95Now: $159.26Was: $176.95 -
On Sale
CYLINDER WORKS Standard Bore Gasket Kit 810944
CYLINDER WORKS
MSRP: $85.95Now: $77.36Was: $85.95CYLINDER WORKS Standard Bore Gasket Kit 810944Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced...09341939- SKU:
- 09341939
- Availability:
- Ships Same Business Day
- Weight:
- 0.17 LBS
- STYLE:
- STANDARD
- TYPE:
- TOP END
- UNITS:
- KIT
- MATERIAL:
- NICKEL SILICON CARBIDE
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
MSRP: $85.95Now: $77.36Was: $85.95 -
On Sale
CYLINDER WORKS Big Bore Gasket Kit 31004-G01
CYLINDER WORKS
MSRP: $85.95Now: $77.36Was: $85.95CYLINDER WORKS Big Bore Gasket Kit 31004-G01Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced...09341929- SKU:
- 09341929
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- BORE SIZE METRIC:
- OVERSIZED (+3.00 MM)
- MATERIAL:
- NICKEL SILICON CARBIDE
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- BIG BORE
- UNITS:
- KIT
- TYPE:
- TOP END
MSRP: $85.95Now: $77.36Was: $85.95 -
On Sale
CYLINDER WORKS Big Bore Gasket Kit 11006-G01
CYLINDER WORKS
MSRP: $101.95Now: $93.56Was: $103.95CYLINDER WORKS Big Bore Gasket Kit 11006-G01Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Cylinder kits include matched Vertex pistons to ensure longevity, performance and reduced...09341927- SKU:
- 09341927
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- TYPE:
- TOP END
- UNITS:
- KIT
- STYLE:
- BIG BORE
- BORE SIZE METRIC:
- OVERSIZED (+3.00 MM)
- MATERIAL:
- NICKEL SILICON CARBIDE
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- GASKET KIT
MSRP: $101.95Now: $93.56Was: $103.95 -
K&S TECHNOLOGIES Water Pump Repair Gasket Kit - YZ250F 75-4004
K&S TECHNOLOGIES
$35.95K&S TECHNOLOGIES Water Pump Repair Gasket Kit YZ250F 75-4004Each kit includes all necessary gaskets, washers, seals and O-rings; kit contents vary by model09341924- SKU:
- 09341924
- Availability:
- Ships Same Business Day
- Weight:
- 0.21 LBS
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- WATER PUMP REPAIR
- UNITS:
- KIT
$35.95
