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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Dirt Bike Cams and Parts
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Dirt Bike Connecting Rods and Parts
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Dirt Bike Crankcases and Parts
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Dirt Bike Crankshafts and Parts
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Dirt Bike Cylinder Heads and Parts
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Dirt Bike Cylinders and Parts
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Dirt Bike Engine Bearings
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Dirt Bike Engine Covers
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Dirt Bike Engine Gaskets and Kits
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Dirt Bike Engine Rebuild Kits
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Dirt Bike Engine Seals - Orings and Kits
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Dirt Bike Engine Valves and Parts
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Dirt Bike Flywheel and Rod Assemblies
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Dirt Bike Fuel Filters
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Dirt Bike Miscellaneous Engine Parts
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Dirt Bike Oil Coolers
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Dirt Bike Oil Filters
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Dirt Bike Oil Lines
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Dirt Bike Oil Pumps
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Dirt Bike Piston and Ring Kits
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Dirt Bike Piston Rings Only
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Dirt Bike Wrist Pins and Circlips
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- Quantity
- Price
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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...9341968- SKU:
- 9341968
- 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...9341964- SKU:
- 9341964
- 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...9341939- SKU:
- 9341939
- 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...9341929- SKU:
- 9341929
- 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: $85.95Qty in Cart: 0Quantity:Price:MSRP: $85.95Now: $77.36Was: $85.95Subtotal: -
On Sale
CYLINDER WORKS Big Bore Gasket Kit 11008-G01
CYLINDER WORKS
MSRP: $85.95Now: $77.36Was: $85.95Ready-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 engine noise, Nickel Silicon Carbide plated for...9341928- SKU:
- 9341928
- Weight:
- 0.15 LBS
MSRP: $85.95Now: $77.36Was: $85.95Qty in Cart: 0Quantity:Price:MSRP: $85.95Now: $77.36Was: $85.95Subtotal: -
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...9341927- SKU:
- 9341927
- 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 model9341924- SKU:
- 9341924
- 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 -
On Sale
ATHENA Complete Gasket Kit - KTM P400270850019
ATHENA
MSRP: $135.95Now: $122.36Was: $135.95ATHENA Complete Gasket Kit KTM P400270850019Superior-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...9341819- SKU:
- 9341819
- Availability:
- Ships Same Business Day
- Weight:
- 0.49 LBS
- RIDING STYLE:
- STREET
- TYPE:
- COMPLETE
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- GASKET KIT
MSRP: $135.95Now: $122.36Was: $135.95Qty in Cart: 0Quantity:Price:MSRP: $135.95Now: $122.36Was: $135.95Subtotal: -
On Sale
ATHENA Complete Gasket Kit - KTM P400270850023
ATHENA
MSRP: $122.95Now: $110.66Was: $122.95ATHENA Complete Gasket Kit KTM P400270850023Superior-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...9341817- SKU:
- 9341817
- Availability:
- Ships Same Business Day
- Weight:
- 0.39 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- COMPLETE
- UNITS:
- KIT
- ENGINE TYPE:
- -
- PRODUCT NAME:
- GASKET KIT
MSRP: $122.95Now: $110.66Was: $122.95Qty in Cart: 0Quantity:Price:MSRP: $122.95Now: $110.66Was: $122.95Subtotal: -
COMETIC Gasket Set - 95 mm - Yamaha C7908-EST
COMETIC
$89.95COMETIC Gasket Set 95 mm Yamaha C7908-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...9340933- SKU:
- 9340933
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
- BORE SIZE METRIC:
- 95.00 MM
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- RIDING STYLE:
- STREET
- TYPE:
- TOP END
$89.95 -
COMETIC Gasket Set - 77 mm - Yamaha C7905-EST
COMETIC
$83.95COMETIC Gasket Set 77 mm Yamaha C7905-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...9340932- SKU:
- 9340932
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- KIT
- BORE SIZE METRIC:
- 77.00 MM
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- GASKET KIT
$83.95 -
COMETIC Gasket Set - 78 mm - Honda C3133-EST
COMETIC
$84.95COMETIC Gasket Set 78 mm Honda C3133-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...9340920- SKU:
- 9340920
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- TYPE:
- TOP END
- BORE SIZE METRIC:
- 78.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
$84.95 -
COMETIC Gasket Set - 96 mm - Honda C3047-EST
COMETIC
$88.95COMETIC Gasket Set 96 mm Honda C3047-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...9340905- SKU:
- 9340905
- Availability:
- Ships Same Business Day
- Weight:
- 0.17 LBS
- TYPE:
- TOP END
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- BORE SIZE METRIC:
- 96.00 MM
$88.95 -
BBR MOTORSPORTS Gasket Kit - CRF150 411-HCF-1502
BBR MOTORSPORTS
$29.95BBR MOTORSPORTS Gasket Kit CRF150 411-HCF-1502Replacement gaskets for 175CC BBR Motorsports Big Bore Kits, Includes head and base gaskets9340647- SKU:
- 9340647
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CYLINDER BASE
- TYPE:
- CYLINDER HEAD
- UNITS:
- KIT
- DISPLACEMENT:
- 175 CC
- PRODUCT NAME:
- GASKET KIT
$29.95 -
BBR MOTORSPORTS Gasket Kit - CRF230 410-HCF-2310
BBR MOTORSPORTS
$57.95BBR MOTORSPORTS Gasket Kit CRF230 410-HCF-2310Replacement gaskets for 240CC Big Bore Kits, Includes head and base gaskets9340646- SKU:
- 9340646
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- DISPLACEMENT:
- 240 CC
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CYLINDER BASE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- CYLINDER HEAD
$57.95Qty in Cart: 0Quantity:Price:$57.95Subtotal: -
BBR MOTORSPORTS Gasket Kit - TTR125 411-YTR-1210
BBR MOTORSPORTS
$29.95BBR MOTORSPORTS Gasket Kit TTR125 411-YTR-1210Replacement Gaskets for BBR Motorsports 150CC Big Bore Cam Kit, Gasket kit including cylinder head and base gaskets9340645- SKU:
- 9340645
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- PRODUCT NAME:
- GASKET KIT
- STYLE:
- BIG BORE
- DISPLACEMENT:
- 150 CC
- TYPE:
- CYLINDER HEAD
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CYLINDER BASE
- UNITS:
- KIT
$29.95 -
BBR MOTORSPORTS Gasket Kit - Honda 50 411-HXR-5210
BBR MOTORSPORTS
$29.95BBR MOTORSPORTS Gasket Kit Honda 50 411-HXR-5210Replacement Gasket designed for BBR 88cc Big Bore Kit9340643- SKU:
- 9340643
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- PRODUCT NAME:
- GASKET KIT
- BORE SIZE METRIC:
- 52.00 MM
- DISPLACEMENT:
- 88 CC
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- BIG BORE
- UNITS:
- KIT
$29.95 -
BBR MOTORSPORTS Gasket - 120CC XR/CRF100 411-HXR-1010
BBR MOTORSPORTS
$29.95BBR MOTORSPORTS Gasket 120CC XR/CRF100 411-HXR-1010Replacement gasket kit for BBR 120CC Big Bore Kit9340641- SKU:
- 9340641
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- BIG BORE
- DISPLACEMENT:
- 120 CC
- PRODUCT NAME:
- GASKET KIT
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
$29.95 -
On Sale
ATHENA Cylinder Gasket Kit - Yamaha 070203/1
ATHENA
MSRP: $12.95Now: $11.66Was: $12.95ATHENA Cylinder Gasket Kit Yamaha 070203/1Replacement cylinder gasket kit for Athena 70cc bolt-on big bore kits9340639- SKU:
- 9340639
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- STREET
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
- UNITS:
- KIT
MSRP: $12.95Now: $11.66Was: $12.95 -
On Sale
ATHENA Cylinder Gasket Kit - Yamaha 070103/1
ATHENA
MSRP: $12.95Now: $11.66Was: $12.95ATHENA Cylinder Gasket Kit Yamaha 070103/1Replacement cylinder gasket kit for Athena 70cc bolt-on big bore kits9340638- SKU:
- 9340638
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- TOP END
- UNITS:
- KIT
MSRP: $12.95Now: $11.66Was: $12.95Qty in Cart: 0Quantity:Price:MSRP: $12.95Now: $11.66Was: $12.95Subtotal:
