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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- Qty in Cart
- Quantity
- Price
- Subtotal
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On Sale
CYLINDER WORKS Cylinder Kit - Standard 20010-K02
CYLINDER WORKS
MSRP: $614.95Now: $564.26Was: $626.95CYLINDER WORKS Cylinder Kit Standard 20010-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...9310676- SKU:
- 9310676
- Availability:
- Ships Same Business Day
- Weight:
- 3.20 LBS
- BORE SIZE METRIC:
- 77.00 MM
- ENGINE TYPE:
- 4-CYCLE
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 77,00 MM
- PRODUCT NAME:
- CYLINDER KIT
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- STYLE:
- STANDARD
MSRP: $614.95Now: $564.26Was: $626.95Qty in Cart: 0Quantity:Price:MSRP: $614.95Now: $564.26Was: $626.95Subtotal: -
On Sale
CYLINDER WORKS Cylinder - Standard 10010
CYLINDER WORKS
MSRP: $344.95Now: $316.76Was: $351.95CYLINDER WORKS Cylinder Standard 10010Ready-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.9310712- SKU:
- 9310712
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 96,00 MM
- OVERBORE METRIC:
- STANDARD
- STYLE:
- STANDARD
- ENGINE TYPE:
- 4-CYCLE
- UNITS:
- EACH
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- PRODUCT NAME:
- CYLINDER
- RIDING STYLE:
- OFF-ROAD
MSRP: $344.95Now: $316.76Was: $351.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Standard Bore 10010-K01
CYLINDER WORKS
MSRP: $577.95Now: $530.96Was: $589.95CYLINDER WORKS Cylinder Kit Standard Bore 10010-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...9310713- SKU:
- 9310713
- Availability:
- Ships Same Business Day
- Weight:
- 4.10 LBS
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- STYLE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- CYLINDER DIAMETER:
- 96,00 MM
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 96.00 MM
- ENGINE TYPE:
- 4-CYCLE
MSRP: $577.95Now: $530.96Was: $589.95 -
On Sale
CYLINDER WORKS Cylinder Kit - High Compression - Standard Bore 10010-K01HC
CYLINDER WORKS
MSRP: $633.95Now: $582.26Was: $646.95CYLINDER WORKS Cylinder Kit High Compression Standard Bore 10010-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,...9310714- SKU:
- 9310714
- Availability:
- Ships Same Business Day
- Weight:
- 4.15 LBS
- STYLE:
- STANDARD
- BORE SIZE METRIC:
- 96.00 MM
- COMPRESSION RATIO IMPERIAL:
- 14.4:1
- ENGINE TYPE:
- 4-CYCLE
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 96,00 MM
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $633.95Now: $582.26Was: $646.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Big Bore 11010-K01
CYLINDER WORKS
MSRP: $726.95Now: $666.86Was: $740.95CYLINDER WORKS Cylinder Kit Big Bore 11010-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...9310715- SKU:
- 9310715
- Availability:
- Ships Same Business Day
- Weight:
- 4.25 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- DISPLACEMENT:
- STANDARD
- OVERBORE METRIC:
- +3.00 MM
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 99.00 MM
- RIDING STYLE:
- OFF-ROAD
- CYLINDER DIAMETER:
- 99,00 MM
- ENGINE TYPE:
- 4-CYCLE
MSRP: $726.95Now: $666.86Was: $740.95 -
On Sale
CYLINDER WORKS Cylinder - Standard 50006
CYLINDER WORKS
MSRP: $441.95Now: $405.86Was: $450.95CYLINDER WORKS Cylinder Standard 50006Ready-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.9310716- SKU:
- 9310716
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- CYLINDER DIAMETER METRIC:
- 78.00 MM
- UNITS:
- EACH
- PRODUCT NAME:
- CYLINDER
- RIDING STYLE:
- OFF-ROAD
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- OVERBORE METRIC:
- STANDARD
- STYLE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 14.4:1
- CYLINDER DIAMETER:
- 78,00 MM
- ENGINE TYPE:
- 4-CYCLE
MSRP: $441.95Now: $405.86Was: $450.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Standard Bore 50006-K01
CYLINDER WORKS
MSRP: $733.95Now: $674.06Was: $748.95CYLINDER WORKS Cylinder Kit Standard Bore 50006-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...9310717- SKU:
- 9310717
- Availability:
- Ships Same Business Day
- Weight:
- 3.30 LBS
- CYLINDER DIAMETER METRIC:
- 78.00 MM
- COMPRESSION RATIO IMPERIAL:
- 14.4:1
- CYLINDER DIAMETER:
- 78,00 MM
- ENGINE TYPE:
- 4-CYCLE
- BORE SIZE METRIC:
- 78.00 MM
- STYLE:
- STANDARD
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $733.95Now: $674.06Was: $748.95Qty in Cart: 0Quantity:Price:MSRP: $733.95Now: $674.06Was: $748.95Subtotal: -
On Sale
CYLINDER WORKS Cylinder Kit 50006-K01HC
CYLINDER WORKS
MSRP: $754.95Now: $692.96Was: $769.95CYLINDER WORKS Cylinder Kit 50006-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...9310718- SKU:
- 9310718
- Availability:
- Ships Same Business Day
- Weight:
- 3.55 LBS
- COMPRESSION RATIO IMPERIAL:
- 14.7:1
- CYLINDER DIAMETER METRIC:
- 78.00 MM
- RIDING STYLE:
- OFF-ROAD
- PRODUCT NAME:
- CYLINDER KIT
- UNITS:
- KIT
- BORE SIZE METRIC:
- 78.00 MM
- CYLINDER DIAMETER:
- 78,00 MM
- STYLE:
- STANDARD
- ENGINE TYPE:
- 4-CYCLE
MSRP: $754.95Now: $692.96Was: $769.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Big Bore 51006-K01
CYLINDER WORKS
MSRP: $850.95Now: $781.16Was: $867.95CYLINDER WORKS Cylinder Kit Big Bore 51006-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...9310719- SKU:
- 9310719
- Availability:
- Ships Same Business Day
- Weight:
- 3.30 LBS
- RIDING STYLE:
- OFF-ROAD
- COMPRESSION RATIO IMPERIAL:
- 14.4:1
- CYLINDER DIAMETER METRIC:
- 81.00 MM
- ENGINE TYPE:
- 4-CYCLE
- DISPLACEMENT:
- STANDARD
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 81,00 MM
- OVERBORE METRIC:
- +3.00 MM
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- UNITS:
- KIT
MSRP: $850.95Now: $781.16Was: $867.95 -
On Sale
CYLINDER WORKS Cylinder - Standard 50007
CYLINDER WORKS
MSRP: $431.95Now: $396.86Was: $440.95CYLINDER WORKS Cylinder Standard 50007Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Nickel Silicon Carbide plated for long life, Big bore cylinders do not require machine work, Made in...9310720- SKU:
- 9310720
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- CYLINDER DIAMETER METRIC:
- 88.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- ENGINE TYPE:
- 4-CYCLE
- STYLE:
- STANDARD
- BORE SIZE METRIC:
- 88.00 MM
- CYLINDER DIAMETER:
- 88,00 MM
- PRODUCT NAME:
- CYLINDER
MSRP: $431.95Now: $396.86Was: $440.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Standard Bore 50007-K01
CYLINDER WORKS
MSRP: $733.95Now: $674.06Was: $748.95CYLINDER WORKS Cylinder Kit Standard Bore 50007-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...9310721- SKU:
- 9310721
- Availability:
- Ships Same Business Day
- Weight:
- 3.50 LBS
- CYLINDER DIAMETER METRIC:
- 88.00 MM
- COMPRESSION RATIO IMPERIAL:
- 14.0:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 88.00 MM
- CYLINDER DIAMETER:
- 88,00 MM
- STYLE:
- STANDARD
- ENGINE TYPE:
- 4-CYCLE
MSRP: $733.95Now: $674.06Was: $748.95 -
On Sale
CYLINDER WORKS Cylinder Kit 50007-K01HC
CYLINDER WORKS
MSRP: $754.95Now: $692.96Was: $769.95CYLINDER WORKS Cylinder Kit 50007-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...9310722- SKU:
- 9310722
- Availability:
- Ships Same Business Day
- Weight:
- 3.55 LBS
- CYLINDER DIAMETER:
- 88,00 MM
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- CYLINDER DIAMETER METRIC:
- 88.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- BORE SIZE METRIC:
- 88.00 MM
- COMPRESSION RATIO IMPERIAL:
- 15.1:1
- STYLE:
- STANDARD
MSRP: $754.95Now: $692.96Was: $769.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Big Bore 51007-K01
CYLINDER WORKS
MSRP: $783.95Now: $719.96Was: $799.95CYLINDER WORKS Cylinder Kit Big Bore 51007-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...9310723- SKU:
- 9310723
- Availability:
- Ships Same Business Day
- Weight:
- 3.45 LBS
- CYLINDER DIAMETER:
- 90,00 MM
- DISPLACEMENT:
- STANDARD
- ENGINE TYPE:
- 4-CYCLE
- OVERBORE METRIC:
- +2.00 MM
- PRODUCT NAME:
- CYLINDER KIT
- COMPRESSION RATIO IMPERIAL:
- 14.0:1
- CYLINDER DIAMETER METRIC:
- 90.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- STYLE:
- BIG BORE
MSRP: $783.95Now: $719.96Was: $799.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Big Bore 31012-K01
CYLINDER WORKS
MSRP: $664.95Now: $610.16Was: $677.95CYLINDER WORKS Cylinder Kit Big Bore 31012-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...9310724- SKU:
- 9310724
- Availability:
- Ships Same Business Day
- Weight:
- 3.55 LBS
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- COMPRESSION RATIO IMPERIAL:
- 13.7:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 80,00 MM
- OVERBORE METRIC:
- +3.00 MM
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 80.00 MM
- DISPLACEMENT:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
MSRP: $664.95Now: $610.16Was: $677.95 -
On Sale
CYLINDER WORKS Cylinder - Standard 30012
CYLINDER WORKS
MSRP: $355.95Now: $326.66Was: $362.95CYLINDER WORKS Cylinder Standard 30012Ready-to-install, direct bolt-on cylinders require no re-plating and look virtually identical to the OEM cylinders, Nickel Silicon Carbide plated for long life, Big bore cylinders do not require machine work, Made in...9310725- SKU:
- 9310725
- Availability:
- Ships Same Business Day
- Weight:
- 2.45 LBS
- CYLINDER DIAMETER:
- 77,00 MM
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- STYLE:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 77.00 MM
- UNITS:
- EACH
MSRP: $355.95Now: $326.66Was: $362.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Standard Bore 20010-K01
CYLINDER WORKS
MSRP: $614.95Now: $564.26Was: $626.95CYLINDER WORKS Cylinder Kit Standard Bore 20010-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...9310588- SKU:
- 9310588
- Availability:
- Ships Same Business Day
- Weight:
- 3.40 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: $614.95Now: $564.26Was: $626.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Big Bore 21005-K02
CYLINDER WORKS
MSRP: $738.95Now: $678.56Was: $753.95CYLINDER WORKS Cylinder Kit Big Bore 21005-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...9310590- SKU:
- 9310590
- Availability:
- Ships Same Business Day
- Weight:
- 4.40 LBS
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- CYLINDER DIAMETER METRIC:
- 99.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- DISPLACEMENT:
- 468 CC
- ENGINE TYPE:
- 4-CYCLE
- OVERBORE METRIC:
- +2.00 MM
- CYLINDER DIAMETER:
- 99,00 MM
MSRP: $738.95Now: $678.56Was: $753.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Big Bore 21010-K01
CYLINDER WORKS
MSRP: $858.95Now: $773.06Was: $858.95CYLINDER WORKS Cylinder Kit Big Bore 21010-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...9310591- SKU:
- 9310591
- Availability:
- Ships Same Business Day
- Weight:
- 3.20 LBS
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- DISPLACEMENT:
- 269 CC
- OVERBORE METRIC:
- +3.00 MM
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 80.00 MM
- RIDING STYLE:
- OFF-ROAD
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- CYLINDER DIAMETER:
- 80,00 MM
MSRP: $858.95Now: $773.06Was: $858.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Standard Bore 30009-K01
CYLINDER WORKS
MSRP: $555.95Now: $510.26Was: $566.95CYLINDER WORKS Cylinder Kit Standard Bore 30009-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...9310594- SKU:
- 9310594
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- DISPLACEMENT:
- 85 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER DIAMETER:
- 48,50 MM
- CYLINDER DIAMETER METRIC:
- 48.50 MM
- ENGINE TYPE:
- 2-CYCLE
- COMPRESSION RATIO IMPERIAL:
- 10.0:1
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- STANDARD
MSRP: $555.95Now: $510.26Was: $566.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Standard Bore 30011-K02
CYLINDER WORKS
MSRP: $569.95Now: $520.16Was: $577.95CYLINDER WORKS Cylinder Kit Standard Bore 30011-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...9310598- SKU:
- 9310598
- Availability:
- Ships Same Business Day
- Weight:
- 4.15 LBS
- STYLE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- ENGINE TYPE:
- 4-CYCLE
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 96,00 MM
- DISPLACEMENT:
- 449 CC
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
MSRP: $569.95Now: $520.16Was: $577.95
