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
- Subtotal
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COMETIC Top End Gasket Kit C7181
COMETIC
$51.95COMETIC Top End Gasket Kit C7181Top 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...9340315- SKU:
- 9340315
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- THICKNESS IMPERIAL:
- 0,012'
- TYPE:
- TOP END
- BORE SIZE METRIC:
- 54.00 MM
- THICKNESS METRIC:
- 0.31 MM
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$51.95 -
WINDEROSA Top End Gasket Kit - SL/SLTX1100 610806
WINDEROSA
$58.95WINDEROSA Top End Gasket Kit SL/SLTX1100 610806Includes bases and heads, along with intake and exhaust gaskets (only those nearest the block), Made in the U.S.A.9340271- SKU:
- 9340271
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- TOP END
- UNITS:
- KIT
$58.95Qty in Cart: 0Quantity:Price:$58.95Subtotal: -
On Sale
ATHENA Top End Gasket Kit P400270600220/1
ATHENA
MSRP: $48.95Now: $44.06Was: $48.95ATHENA Top End Gasket Kit P400270600220/1Specifically 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...9340234- SKU:
- 9340234
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- PRODUCT NAME:
- GASKET KIT
- ENGINE TYPE:
- 2-STROKE
- MATERIAL:
- RUBBER
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- KIT
MSRP: $48.95Now: $44.06Was: $48.95 -
On Sale
ATHENA Gasket - KLX/DRZ/KFX/LTZ400 P400510160002
ATHENA
MSRP: $117.95Now: $106.16Was: $117.95ATHENA Gasket KLX/DRZ/KFX/LTZ400 P400510160002Kits 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,...9340194- SKU:
- 9340194
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- TYPE:
- TOP END
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- BORE SIZE:
- 94,00 MM
- RIDING STYLE:
- STREET
- BORE SIZE METRIC:
- 94.00 MM
- DISPLACEMENT:
- 435 CC
- RIDING STYLE:
- OFF-ROAD
MSRP: $117.95Now: $106.16Was: $117.95 -
On Sale
ATHENA Cylinder Gasket Kit - KX125 P400250160001
ATHENA
MSRP: $49.95Now: $44.96Was: $49.95ATHENA Cylinder Gasket Kit KX125 P400250160001Kits 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,...9340190- SKU:
- 9340190
- Availability:
- Ships Same Business Day
- Weight:
- 0.06 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE:
- 54,00 MM
- BORE SIZE METRIC:
- 54.00 MM
- TYPE:
- TOP END
MSRP: $49.95Now: $44.96Was: $49.95Qty in Cart: 0Quantity:Price:MSRP: $49.95Now: $44.96Was: $49.95Subtotal: -
BLOWSION Engine Keepers - Yamaha 01-03-802
BLOWSION
$98.95BLOWSION Engine Keepers Yamaha 01-03-802Designed in conjunction with (and required by) Blowsion SXR Pro Freerider Air Darin Anderson and SL rider Joe Kenney; these “Kenney Keepers” are a must have for any hardcore surf or flat-water invert artist riding...9330097- SKU:
- 9330097
- Availability:
- Ships Same Business Day
- Weight:
- 0.70 LBS
- MOUNTING POSITION:
- LEFT
- PRODUCT NAME:
- MOUNT
- TYPE:
- ENGINE
- COLOR/FINISH:
- ANODIZED
- MOUNTING POSITION:
- RIGHT
- COLOR/FINISH:
- BLUE
- RIDING STYLE:
- WATERCRAFT
- UNITS:
- KIT
$98.95Qty in Cart: 0Quantity:Price:$98.95Subtotal: -
On Sale
CYLINDER WORKS Cylinder Kit 60004-K01HC
CYLINDER WORKS
MSRP: $1,110.95Now: $1,019.66Was: $1,132.95CYLINDER WORKS Cylinder Kit 60004-K01HCReady-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...9310735- SKU:
- 9310735
- Availability:
- Ships Same Business Day
- Weight:
- 9.85 LBS
- UNITS:
- KIT
- BORE SIZE METRIC:
- 93.00 MM
- COMPRESSION RATIO IMPERIAL:
- 11.5:1
- CYLINDER DIAMETER:
- 93,00 MM
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- CYLINDER DIAMETER METRIC:
- 93.00 MM
- RIDING STYLE:
- UTV
- STYLE:
- STANDARD
MSRP: $1,110.95Now: $1,019.66Was: $1,132.95 -
On Sale
CYLINDER WORKS Cylinder - Standard Bore 60004-K02
CYLINDER WORKS
MSRP: $965.95Now: $869.36Was: $965.95CYLINDER WORKS Cylinder Standard Bore 60004-K02Ready-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...9310734- SKU:
- 9310734
- Availability:
- Ships Same Business Day
- Weight:
- 9.90 LBS
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER METRIC:
- 93.00 MM
- STYLE:
- STANDARD
- UNITS:
- KIT
- CYLINDER DIAMETER:
- 93,00 MM
- DISPLACEMENT:
- STANDARD
- RIDING STYLE:
- UTV
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER
MSRP: $965.95Now: $869.36Was: $965.95 -
On Sale
CYLINDER WORKS Cylinder - Standard 60004
CYLINDER WORKS
MSRP: $551.95Now: $506.66Was: $562.95CYLINDER WORKS Cylinder Standard 60004Ready-to-install, direct bolt-on cylinder requires no re-plating and looks virtually identical to the OEM cylinders, Nickel silicon carbide-plated for long life, Made in the U.S.A.9310733- SKU:
- 9310733
- Availability:
- Ships Same Business Day
- Weight:
- 7.15 LBS
- CYLINDER DIAMETER METRIC:
- 93.00 MM
- UNITS:
- EACH
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER
- CYLINDER DIAMETER:
- 93,00 MM
- RIDING STYLE:
- UTV
- STYLE:
- STANDARD
MSRP: $551.95Now: $506.66Was: $562.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Standard 40004-K02
CYLINDER WORKS
MSRP: $577.95Now: $530.96Was: $589.95CYLINDER WORKS Cylinder Kit Standard 40004-K02Ready-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...9310502- SKU:
- 9310502
- Availability:
- Ships Same Business Day
- Weight:
- 3.30 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- STYLE:
- STANDARD
- CYLINDER DIAMETER:
- 77,00 MM
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $577.95Now: $530.96Was: $589.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Big Bore 41004-K02
CYLINDER WORKS
MSRP: $679.95Now: $611.96Was: $679.95CYLINDER WORKS Cylinder Kit Big Bore 41004-K02Ready-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...9310501- SKU:
- 9310501
- Availability:
- Ships Same Business Day
- Weight:
- 3.20 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- CYLINDER DIAMETER METRIC:
- 80.00 MM
- RIDING STYLE:
- OFF-ROAD
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 80,00 MM
- DISPLACEMENT:
- 269 CC
- OVERBORE METRIC:
- +3.00 MM
- UNITS:
- KIT
MSRP: $679.95Now: $611.96Was: $679.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Standard 50005-K01
CYLINDER WORKS
MSRP: $646.95Now: $593.96Was: $659.95CYLINDER WORKS Cylinder Kit Standard 50005-K01Ready-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...9310500- SKU:
- 9310500
- Availability:
- Ships Same Business Day
- Weight:
- 2.85 LBS
- COMPRESSION RATIO IMPERIAL:
- 2.09:1
- PRODUCT NAME:
- CYLINDER KIT
- CYLINDER DIAMETER:
- 45,00 MM
- CYLINDER DIAMETER METRIC:
- 45.00 MM
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- ENGINE TYPE:
- 2-CYCLE
- UNITS:
- KIT
- DISPLACEMENT:
- 65 CC
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- STANDARD
MSRP: $646.95Now: $593.96Was: $659.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Standard 50003-K01
CYLINDER WORKS
MSRP: $711.95Now: $653.36Was: $725.95CYLINDER WORKS Cylinder Kit Standard 50003-K01Ready-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...9310497- SKU:
- 9310497
- Availability:
- Ships Same Business Day
- Weight:
- 3.85 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.6:1
- CYLINDER DIAMETER:
- 88,00 MM
- ENGINE TYPE:
- 4-CYCLE
- STYLE:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 88.00 MM
- DISPLACEMENT:
- 350 CC
- RIDING STYLE:
- OFF-ROAD
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- PRODUCT NAME:
- CYLINDER KIT
- UNITS:
- KIT
MSRP: $711.95Now: $653.36Was: $725.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Big Bore 51003-K01
CYLINDER WORKS
MSRP: $805.95Now: $739.76Was: $821.95CYLINDER WORKS Cylinder Kit Big Bore 51003-K01Ready-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...9310495- SKU:
- 9310495
- Availability:
- Ships Same Business Day
- Weight:
- 3.70 LBS
- ENGINE TYPE:
- 4-CYCLE
- CYLINDER DIAMETER METRIC:
- 90.00 MM
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 90,00 MM
- DISPLACEMENT:
- 365 CC
- OVERBORE METRIC:
- +2.00 MM
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- BIG BORE
- UNITS:
- KIT
MSRP: $805.95Now: $739.76Was: $821.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Standard 50004-K01
CYLINDER WORKS
MSRP: $711.95Now: $653.36Was: $725.95CYLINDER WORKS Cylinder Kit Standard 50004-K01Ready-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...9310493- SKU:
- 9310493
- Availability:
- Ships Same Business Day
- Weight:
- 3.69 LBS
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- STYLE:
- STANDARD
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 13.9:1
- CYLINDER DIAMETER:
- 78,00 MM
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
- CYLINDER DIAMETER METRIC:
- 78.00 MM
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
MSRP: $711.95Now: $653.36Was: $725.95 -
On Sale
CYLINDER WORKS Cylinder Kit - High Compression 21005-K01
CYLINDER WORKS
MSRP: $738.95Now: $678.56Was: $753.95CYLINDER WORKS Cylinder Kit High Compression 21005-K01Ready-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...9310354- SKU:
- 9310354
- Availability:
- Ships Same Business Day
- Weight:
- 4.45 LBS
- CYLINDER DIAMETER METRIC:
- 99.00 MM
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 468 CC
- STYLE:
- HIGH COMPRESSION
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- CYLINDER DIAMETER:
- 99,00 MM
- ENGINE TYPE:
- 4-CYCLE
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- PRODUCT NAME:
- CYLINDER KIT
- UNITS:
- KIT
MSRP: $738.95Now: $678.56Was: $753.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Standard 40003-K01
CYLINDER WORKS
MSRP: $577.95Now: $530.96Was: $589.95CYLINDER WORKS Cylinder Kit Standard 40003-K01Ready-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...9310352- SKU:
- 9310352
- Availability:
- Ships Same Business Day
- Weight:
- 3.20 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER DIAMETER:
- 77,00 MM
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- STYLE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 13.4:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
MSRP: $577.95Now: $530.96Was: $589.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Big Bore 41004-K01
CYLINDER WORKS
MSRP: $668.95Now: $613.76Was: $681.95CYLINDER WORKS Cylinder Kit Big Bore 41004-K01Ready-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...9310351- SKU:
- 9310351
- Availability:
- Ships Same Business Day
- Weight:
- 3.20 LBS
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- COMPRESSION RATIO IMPERIAL:
- 13.4:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 80,00 MM
- DISPLACEMENT:
- 269 CC
- OVERBORE METRIC:
- +3.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 80.00 MM
MSRP: $668.95Now: $613.76Was: $681.95Qty in Cart: 0Quantity:Price:MSRP: $668.95Now: $613.76Was: $681.95Subtotal: -
On Sale
CYLINDER WORKS Cylinder Kit - Big Bore 21007-K01
CYLINDER WORKS
MSRP: $783.95Now: $719.96Was: $799.95CYLINDER WORKS Cylinder Kit Big Bore 21007-K01Ready-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...9310346- SKU:
- 9310346
- Availability:
- Ships Same Business Day
- Weight:
- 3.60 LBS
- COMPRESSION RATIO IMPERIAL:
- 8.2:1
- ENGINE TYPE:
- 2-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- DISPLACEMENT:
- 103.5 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 52.50 MM
- CYLINDER DIAMETER:
- 52,50 MM
- OVERBORE METRIC:
- +5.00 MM
MSRP: $783.95Now: $719.96Was: $799.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Standard 20005-K01
CYLINDER WORKS
MSRP: $614.95Now: $564.26Was: $626.95CYLINDER WORKS Cylinder Kit Standard 20005-K01Ready-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...9310345- SKU:
- 9310345
- Availability:
- Ships Same Business Day
- Weight:
- 4.58 LBS
- CYLINDER DIAMETER:
- 97,00 MM
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- STYLE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- CYLINDER DIAMETER METRIC:
- 97.00 MM
- ENGINE TYPE:
- 4-CYCLE
- DISPLACEMENT:
- 449 CC
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $614.95Now: $564.26Was: $626.95
