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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On Sale
CYLINDER WORKS Cylinder - Standard 50007
CYLINDER WORKS
MSRP: $431.95Now: $396.86Was: $443.95CYLINDER 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...09310720- SKU:
- 09310720
- 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: $443.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Standard Bore 50007-K01
CYLINDER WORKS
MSRP: $733.95Now: $674.06Was: $754.95CYLINDER 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...09310721- SKU:
- 09310721
- 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: $754.95Qty in Cart: 0Quantity:Price:MSRP: $733.95Now: $674.06Was: $754.95Subtotal: -
On Sale
CYLINDER WORKS Cylinder Kit 50007-K01HC
CYLINDER WORKS
MSRP: $754.95Now: $692.96Was: $775.95CYLINDER 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...09310722- SKU:
- 09310722
- 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: $775.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Big Bore 51007-K01
CYLINDER WORKS
MSRP: $783.95Now: $719.96Was: $805.95CYLINDER 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...09310723- SKU:
- 09310723
- 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: $805.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Big Bore 31012-K01
CYLINDER WORKS
MSRP: $664.95Now: $610.16Was: $682.95CYLINDER 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...09310724- SKU:
- 09310724
- 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: $682.95 -
On Sale
CYLINDER WORKS Cylinder - Standard 30012
CYLINDER WORKS
MSRP: $355.95Now: $326.66Was: $365.95CYLINDER 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...09310725- SKU:
- 09310725
- 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: $365.95Qty in Cart: 0Quantity:Price:MSRP: $355.95Now: $326.66Was: $365.95Subtotal: -
On Sale
CYLINDER WORKS Cylinder Kit - Standard Bore 20010-K01
CYLINDER WORKS
MSRP: $614.95Now: $564.26Was: $631.95CYLINDER 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...09310588- SKU:
- 09310588
- 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: $631.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Big Bore 21005-K02
CYLINDER WORKS
MSRP: $738.95Now: $678.56Was: $759.95CYLINDER 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...09310590- SKU:
- 09310590
- 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: $759.95 -
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...09310591- SKU:
- 09310591
- 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: $570.95CYLINDER 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...09310594- SKU:
- 09310594
- 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: $570.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Standard Bore 30011-K02
CYLINDER WORKS
MSRP: $569.95Now: $520.16Was: $581.95CYLINDER 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...09310598- SKU:
- 09310598
- 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: $581.95 -
On Sale
CYLINDER WORKS Cylinder - Standard 60002
CYLINDER WORKS
MSRP: $465.95Now: $427.46Was: $494.95CYLINDER WORKS Cylinder Standard 60002Ready-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.09310604- SKU:
- 09310604
- Availability:
- Ships Same Business Day
- Weight:
- 7.85 LBS
- CYLINDER DIAMETER:
- 80,00 MM
- RIDING STYLE:
- UTV
- STYLE:
- STANDARD
- ENGINE TYPE:
- 4-CYCLE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CYLINDER DIAMETER METRIC:
- 80.00 MM
- PRODUCT NAME:
- CYLINDER
MSRP: $465.95Now: $427.46Was: $494.95 -
On Sale
CYLINDER WORKS Cylinder - Standard 60003
CYLINDER WORKS
MSRP: $551.95Now: $506.66Was: $566.95CYLINDER WORKS Cylinder Standard 60003Ready-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.09310605- SKU:
- 09310605
- Availability:
- Ships Same Business Day
- Weight:
- 7.05 LBS
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- OVERBORE METRIC:
- STANDARD
- RIDING STYLE:
- UTV
- STYLE:
- STANDARD
- CYLINDER DIAMETER:
- 93,00 MM
- PRODUCT NAME:
- CYLINDER
- UNITS:
- EACH
- CYLINDER DIAMETER METRIC:
- 93.00 MM
- DISPLACEMENT:
- 999 CC
- ENGINE TYPE:
- 4-CYCLE
MSRP: $551.95Now: $506.66Was: $566.95 -
On Sale
CYLINDER WORKS Front Cylinder Kit - Standard Bore 30007-K02
CYLINDER WORKS
MSRP: $569.95Now: $520.16Was: $581.95CYLINDER WORKS Front Cylinder Kit Standard Bore 30007-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...09310609- SKU:
- 09310609
- Availability:
- Ships Same Business Day
- Weight:
- 5.05 LBS
- COMPRESSION RATIO IMPERIAL:
- 9.3:1
- CYLINDER DIAMETER:
- 85,00 MM
- CYLINDER DIAMETER METRIC:
- 85.00 MM
- RIDING STYLE:
- ATV
- UNITS:
- KIT
- STYLE:
- STANDARD
- ENGINE TYPE:
- 4-CYCLE
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- DISPLACEMENT:
- 749 CC
- PRODUCT NAME:
- FRONT CYLINDER KIT
MSRP: $569.95Now: $520.16Was: $581.95 -
On Sale
CYLINDER WORKS Rear Cylinder Kit - Standard Bore 30008-K02
CYLINDER WORKS
MSRP: $569.95Now: $520.16Was: $581.95CYLINDER WORKS Rear Cylinder Kit Standard Bore 30008-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...09310611- SKU:
- 09310611
- Availability:
- Ships Same Business Day
- Weight:
- 5.00 LBS
- COMPRESSION RATIO IMPERIAL:
- 9.3:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER METRIC:
- 85.00 MM
- PRODUCT NAME:
- REAR CYLINDER KIT
- UNITS:
- KIT
- CYLINDER DIAMETER:
- 85,00 MM
- DISPLACEMENT:
- 749 CC
- RIDING STYLE:
- ATV
- ENGINE TYPE:
- 4-CYCLE
- STYLE:
- STANDARD
MSRP: $569.95Now: $520.16Was: $581.95 -
On Sale
CYLINDER WORKS Cylinder Kit - High Compression 60002-K02HC
CYLINDER WORKS
MSRP: $938.95Now: $862.16Was: $964.95CYLINDER WORKS Cylinder Kit High Compression 60002-K02HCReady-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...09310617- SKU:
- 09310617
- Availability:
- Ships Same Business Day
- Weight:
- 10.30 LBS
- CYLINDER DIAMETER:
- 80,00 MM
- RIDING STYLE:
- UTV
- STYLE:
- HIGH COMPRESSION
- ENGINE TYPE:
- 4-CYCLE
- CYLINDER DIAMETER METRIC:
- 80.00 MM
- DISPLACEMENT:
- 769 CC
- RIDING STYLE:
- ATV
- COMPRESSION RATIO IMPERIAL:
- 12.0:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- PRODUCT NAME:
- CYLINDER KIT
- UNITS:
- KIT
MSRP: $938.95Now: $862.16Was: $964.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Standard Bore 60003-K02
CYLINDER WORKS
MSRP: $995.95Now: $896.36Was: $995.95CYLINDER WORKS Cylinder Kit Standard Bore 60003-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...09310618- SKU:
- 09310618
- Availability:
- Ships Same Business Day
- Weight:
- 9.85 LBS
- CYLINDER DIAMETER:
- 93,00 MM
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- COMPRESSION RATIO IMPERIAL:
- 10.5:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER METRIC:
- 93.00 MM
- DISPLACEMENT:
- 999 CC
- UNITS:
- KIT
- RIDING STYLE:
- UTV
- STYLE:
- STANDARD
MSRP: $995.95Now: $896.36Was: $995.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Big Bore 31006-K01
CYLINDER WORKS
MSRP: $649.95Now: $594.86Was: $665.95CYLINDER WORKS Cylinder Kit Big Bore 31006-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...09310424- SKU:
- 09310424
- Availability:
- Ships Same Business Day
- Weight:
- 3.10 LBS
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 80,00 MM
- ENGINE TYPE:
- 4-CYCLE
- CYLINDER DIAMETER METRIC:
- 80.00 MM
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- DISPLACEMENT:
- 269 CC
- OVERBORE METRIC:
- +3.00 MM
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- BIG BORE
- UNITS:
- KIT
MSRP: $649.95Now: $594.86Was: $665.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Big Bore 23001-K01
CYLINDER WORKS
MSRP: $716.95Now: $657.86Was: $735.95CYLINDER WORKS Cylinder Kit Big Bore 23001-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...09310425- SKU:
- 09310425
- Availability:
- Ships Same Business Day
- Weight:
- 4.57 LBS
- CYLINDER DIAMETER:
- 105,00 MM
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- RIDING STYLE:
- ATV
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER METRIC:
- 105.00 MM
- OVERBORE METRIC:
- +3.00 MM
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 9.2:1
MSRP: $716.95Now: $657.86Was: $735.95 -
On Sale
CYLINDER WORKS Cylinder Kit - Big Bore 23001-K02
CYLINDER WORKS
MSRP: $716.95Now: $657.86Was: $735.95CYLINDER WORKS Cylinder Kit Big Bore 23001-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...09310426- SKU:
- 09310426
- Availability:
- Ships Same Business Day
- Weight:
- 4.60 LBS
- CYLINDER DIAMETER METRIC:
- 98.00 MM
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- DISPLACEMENT:
- 478 CC
- RIDING STYLE:
- OFF-ROAD
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 98,00 MM
- OVERBORE METRIC:
- +3.00 MM
- UNITS:
- KIT
MSRP: $716.95Now: $657.86Was: $735.95
