Dirt Bike Engine
Discover a full range of dirt bike engine components for rebuilding or upgrading your performance. From crankshafts to cylinder heads and piston kits, these precision-engineered components ensure reliable performance. For additional upgrades, check out our full selection of off-road dirt bike parts.
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CYLINDER WORKS Cylinder - Standard - KTM250 50002
CYLINDER WORKS
$487.95CYLINDER WORKS Cylinder Standard KTM250 50002Ready-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,...09310404- SKU:
- 09310404
- Availability:
- Ships Same Business Day
- Weight:
- 2.70 LBS
- CYLINDER DIAMETER:
- 76,00 MM
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER
- BORE SIZE METRIC:
- 76.00 MM
- CYLINDER DIAMETER METRIC:
- 76.00 MM
- STYLE:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$487.95 -
CYLINDER WORKS Cylinder Kit - Standard Bore 50002-K01
CYLINDER WORKS
$829.95CYLINDER WORKS Cylinder Kit Standard Bore 50002-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...09310408- SKU:
- 09310408
- Availability:
- Ships Same Business Day
- Weight:
- 3.50 LBS
- COMPRESSION RATIO IMPERIAL:
- 12.8:1
- CYLINDER DIAMETER METRIC:
- 76.00 MM
- PRODUCT NAME:
- CYLINDER KIT
- CYLINDER DIAMETER:
- 76,00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- STYLE:
- STANDARD
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
$829.95 -
CYLINDER WORKS Cylinder Kit - Standard 10008-K01
CYLINDER WORKS
$615.95CYLINDER WORKS Cylinder Kit Standard 10008-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...09310274- SKU:
- 09310274
- Availability:
- Ships Same Business Day
- Weight:
- 4.65 LBS
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- DISPLACEMENT:
- 449 CC
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 96,00 MM
- STYLE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 12.1:1
- ENGINE TYPE:
- 4-CYCLE
$615.95 -
CYLINDER WORKS Cylinder Kit - Standard 20002-K02
CYLINDER WORKS
$669.95CYLINDER WORKS Cylinder Kit Standard 20002-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...09310279- SKU:
- 09310279
- Availability:
- Ships Same Business Day
- Weight:
- 3.95 LBS
- CYLINDER DIAMETER:
- 77,00 MM
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- STYLE:
- STANDARD
$669.95 -
CYLINDER WORKS Cylinder Kit - Standard 20001-K02
CYLINDER WORKS
$694.95CYLINDER WORKS Cylinder Kit Standard 20001-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...09310280- SKU:
- 09310280
- Availability:
- Ships Same Business Day
- Weight:
- 4.33 LBS
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER METRIC:
- 95.00 MM
- PRODUCT NAME:
- CYLINDER KIT
- CYLINDER DIAMETER:
- 95,00 MM
- DISPLACEMENT:
- 449 CC
- ENGINE TYPE:
- 4-CYCLE
- STYLE:
- STANDARD
$694.95 -
CYLINDER WORKS Cylinder Kit - High Compression 10002-K01HC
CYLINDER WORKS
$652.95CYLINDER WORKS Cylinder Kit High Compression 10002-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...09310291- SKU:
- 09310291
- Availability:
- Ships Same Business Day
- Weight:
- 4.80 LBS
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 96,00 MM
- UNITS:
- KIT
- STYLE:
- HIGH COMPRESSION
- DISPLACEMENT:
- 449 CC
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- RIDING STYLE:
- OFF-ROAD
$652.95 -
CYLINDER WORKS Cylinder Kit - High Compression 30004-K01HC
CYLINDER WORKS
$591.95CYLINDER WORKS Cylinder Kit High Compression 30004-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...09310295- SKU:
- 09310295
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- STYLE:
- HIGH COMPRESSION
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
- COMPRESSION RATIO IMPERIAL:
- 13.9:1
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- RIDING STYLE:
- OFF-ROAD
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 77,00 MM
- PRODUCT NAME:
- CYLINDER KIT
- UNITS:
- KIT
$591.95Qty in Cart: 0Quantity:Price:$591.95Subtotal: -
CYLINDER WORKS Cylinder Kit - High Compression 20002-K01HC
CYLINDER WORKS
$694.95CYLINDER WORKS Cylinder Kit High Compression 20002-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...09310296- SKU:
- 09310296
- Availability:
- Ships Same Business Day
- Weight:
- 3.33 LBS
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- HIGH COMPRESSION
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 77,00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 77.00 MM
$694.95 -
CYLINDER WORKS Cylinder - Standard 10004
CYLINDER WORKS
$328.95CYLINDER WORKS Cylinder Standard 10004Ready-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...09310163- SKU:
- 09310163
- Availability:
- Ships Same Business Day
- Weight:
- 2.35 LBS
- RIDING STYLE:
- OFF-ROAD
- BORE SIZE METRIC:
- 66.00 MM
- UNITS:
- EACH
- CYLINDER DIAMETER:
- 66,00 MM
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER
- CYLINDER DIAMETER METRIC:
- 66.00 MM
- STYLE:
- STANDARD
$328.95 -
CYLINDER WORKS Cylinder Big Bore Kit 31001-K01
CYLINDER WORKS
$731.95CYLINDER WORKS Cylinder Big Bore Kit 31001-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...09310120- SKU:
- 09310120
- Availability:
- Ships Same Business Day
- Weight:
- 2.95 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.2:1
- CYLINDER DIAMETER METRIC:
- 80.00 MM
- OVERBORE METRIC:
- +3.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 80,00 MM
- DISPLACEMENT:
- 269 CC
- STYLE:
- BIG BORE
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
$731.95 -
CYLINDER WORKS Cylinder - Standard 10001
CYLINDER WORKS
$340.95CYLINDER WORKS Cylinder Standard 10001Ready-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.09310128- SKU:
- 09310128
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- CYLINDER DIAMETER:
- 78,00 MM
- OVERBORE METRIC:
- STANDARD
- STYLE:
- STANDARD
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
- COMPRESSION RATIO IMPERIAL:
- 12.9:1
- CYLINDER DIAMETER METRIC:
- 78.00 MM
- UNITS:
- EACH
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- PRODUCT NAME:
- CYLINDER
- RIDING STYLE:
- OFF-ROAD
$340.95 -
CYLINDER WORKS Big Bore Gasket Kit 41004-G01
CYLINDER WORKS
$579.95CYLINDER WORKS Big Bore Gasket Kit 41004-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...09342151- SKU:
- 09342151
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- NICKEL SILICON CARBIDE
- STYLE:
- BIG BORE
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- KIT
- BORE SIZE METRIC:
- OVERSIZED (+3.00 MM)
- PRODUCT NAME:
- GASKET KIT
$579.95 -
On Sale
CYLINDER WORKS Big Bore Gasket Kit 51004-G01
CYLINDER WORKS
MSRP: $128.95Now: $84.00Was: $128.95CYLINDER WORKS Big Bore Gasket Kit 51004-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...09343130- SKU:
- 09343130
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MATERIAL:
- NICKEL SILICON CARBIDE
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- STYLE:
- BIG BORE
- UNITS:
- KIT
MSRP: $128.95Now: $84.00Was: $128.95 -
CYLINDER WORKS Big Bore Gasket Kit 21010-G01
CYLINDER WORKS
$99.95CYLINDER WORKS Big Bore Gasket Kit 21010-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...09344052- SKU:
- 09344052
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- GASKET KIT
- STYLE:
- BIG BORE
- MATERIAL:
- NICKEL SILICON CARBIDE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
- TYPE:
- TOP END
$99.95 -
On Sale
CYLINDER WORKS Big Bore Gasket Kit 31011-G01
CYLINDER WORKS
MSRP: $89.95Now: $58.00Was: $89.95CYLINDER WORKS Big Bore Gasket Kit 31011-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...09344056- SKU:
- 09344056
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- STYLE:
- BIG BORE
- MATERIAL:
- NICKEL SILICON CARBIDE
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- TOP END
MSRP: $89.95Now: $58.00Was: $89.95 -
CYLINDER WORKS Cylinder Head Kit CH1001-K01
CYLINDER WORKS
$548.95CYLINDER WORKS Cylinder Head Kit CH1001-K01New replacement cylinder head, Include cam caps and cam cap bolts, Include C630 (nickel/aluminum/bronze) valve seats and guides, Competition valve job, Shortened valve guides to accept higher lift cams,...09300127- SKU:
- 09300127
- Availability:
- Ships Same Business Day
- Weight:
- 6.20 LBS
- PRODUCT NAME:
- CYLINDER HEAD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- ENGINE TYPE:
- 4-STROKE
$548.95 -
CYLINDER WORKS Cylinder Head Kit CH1002-K01
CYLINDER WORKS
$548.95CYLINDER WORKS Cylinder Head Kit CH1002-K01New replacement cylinder head, Include cam caps and cam cap bolts, Include C630 (nickel/aluminum/bronze) valve seats and guides, Competition valve job, Shortened valve guides to accept higher lift cams,...09300128- SKU:
- 09300128
- Availability:
- Ships Same Business Day
- Weight:
- 6.15 LBS
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- CYLINDER HEAD KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$548.95 -
CYLINDER WORKS Cylinder Head Kit CH1003-K01
CYLINDER WORKS
$548.95CYLINDER WORKS Cylinder Head Kit CH1003-K01New replacement cylinder head, Include cam caps and cam cap bolts, Include C630 (nickel/aluminum/bronze) valve seats and guides, Competition valve job, Shortened valve guides to accept higher lift cams,...09300129- SKU:
- 09300129
- Availability:
- Ships Same Business Day
- Weight:
- 6.30 LBS
- UNITS:
- KIT
- PRODUCT NAME:
- CYLINDER HEAD KIT
- RIDING STYLE:
- OFF-ROAD
- ENGINE TYPE:
- 4-STROKE
$548.95 -
CYLINDER WORKS Cylinder Head Kit CH2001-K01
CYLINDER WORKS
$243.95CYLINDER WORKS Cylinder Head Kit CH2001-K01New replacement cylinder head, Include cam caps and cam cap bolts, Include C630 (nickel/aluminum/bronze) valve seats and guides, Competition valve job, Shortened valve guides to accept higher lift cams,...09300130- SKU:
- 09300130
- Availability:
- Ships Same Business Day
- Weight:
- 1.05 LBS
- UNITS:
- KIT
- ENGINE TYPE:
- 2-STROKE
- PRODUCT NAME:
- CYLINDER HEAD KIT
- RIDING STYLE:
- OFF-ROAD
$243.95 -
CYLINDER WORKS Cylinder Kit - High Compression 10007-K02HC
CYLINDER WORKS
$589.95CYLINDER WORKS Cylinder Kit High Compression 10007-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...09310584- SKU:
- 09310584
- Availability:
- Ships Same Business Day
- Weight:
- 3.45 LBS
- COMPRESSION RATIO IMPERIAL:
- 14.1:1
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- HIGH COMPRESSION
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER DIAMETER:
- 76,80 MM
- CYLINDER DIAMETER METRIC:
- 76.80 MM
$589.95Qty in Cart: 0Quantity:Price:$589.95Subtotal:
