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 - RMZ250 - 2007-2009 40003
CYLINDER WORKS
$427.95CYLINDER WORKS Cylinder Standard RMZ250 2007-2009 40003Ready-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...09310401- SKU:
- 09310401
- Availability:
- Ships Same Business Day
- Weight:
- 2.50 LBS
- BORE SIZE METRIC:
- 77.00 MM
- CYLINDER DIAMETER:
- 77,00 MM
- PRODUCT NAME:
- CYLINDER
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- ENGINE TYPE:
- 4-CYCLE
- STYLE:
- STANDARD
$427.95 -
CYLINDER WORKS Cylinder - Standard - RMZ250 - 2010-2012 40004
CYLINDER WORKS
$414.95CYLINDER WORKS Cylinder Standard RMZ250 2010-2012 40004Ready-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...09310402- SKU:
- 09310402
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- STYLE:
- STANDARD
- BORE SIZE METRIC:
- 44.00 MM
- ENGINE TYPE:
- 4-CYCLE
- UNITS:
- EACH
- PRODUCT NAME:
- CYLINDER
- RIDING STYLE:
- OFF-ROAD
$414.95 -
CYLINDER WORKS Cylinder Kit - Standard Bore 50001-K01
CYLINDER WORKS
$803.95CYLINDER WORKS Cylinder Kit Standard Bore 50001-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...09310406- SKU:
- 09310406
- Availability:
- Ships Same Business Day
- Weight:
- 3.80 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- DISPLACEMENT:
- 350 CC
- STYLE:
- STANDARD
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER DIAMETER:
- 88,00 MM
- CYLINDER DIAMETER METRIC:
- 88.00 MM
$803.95 -
CYLINDER WORKS Cylinder Kit - Big Bore 51001-K01
CYLINDER WORKS
$909.95CYLINDER WORKS Cylinder Kit Big Bore 51001-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...09310410- SKU:
- 09310410
- Availability:
- Ships Same Business Day
- Weight:
- 3.64 LBS
- DISPLACEMENT:
- 365 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- CYLINDER DIAMETER:
- 90,00 MM
- ENGINE TYPE:
- 4-CYCLE
- OVERBORE METRIC:
- +2.00 MM
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER METRIC:
- 90.00 MM
$909.95 -
CYLINDER WORKS Cylinder Kit - Big Bore 51002-K01
CYLINDER WORKS
$909.95CYLINDER WORKS Cylinder Kit Big Bore 51002-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...09310411- SKU:
- 09310411
- Availability:
- Ships Same Business Day
- Weight:
- 3.26 LBS
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- DISPLACEMENT:
- 276 CC
- OVERBORE METRIC:
- +3.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 13.3:1
- CYLINDER DIAMETER:
- 80,00 MM
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- CYLINDER DIAMETER METRIC:
- 80.00 MM
$909.95 -
CYLINDER WORKS Cylinder Kit - Standard 10006-K01
CYLINDER WORKS
$639.95CYLINDER WORKS Cylinder Kit Standard 10006-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...09310273- SKU:
- 09310273
- Availability:
- Ships Same Business Day
- Weight:
- 4.20 LBS
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 96,00 MM
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 12.0:1
- DISPLACEMENT:
- 449 CC
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
$639.95 -
CYLINDER WORKS Cylinder Kit - Standard 30001-K01
CYLINDER WORKS
$635.95CYLINDER WORKS Cylinder Kit Standard 30001-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...09310275- SKU:
- 09310275
- Availability:
- Ships Same Business Day
- Weight:
- 3.30 LBS
- COMPRESSION RATIO IMPERIAL:
- 12.6:1
- 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
$635.95 -
CYLINDER WORKS Cylinder Kit - Standard 30001-K02
CYLINDER WORKS
$635.95CYLINDER WORKS Cylinder Kit Standard 30001-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...09310276- SKU:
- 09310276
- Availability:
- Ships Same Business Day
- Weight:
- 3.35 LBS
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 77,00 MM
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- STYLE:
- STANDARD
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
$635.95 -
CYLINDER WORKS Cylinder Kit - Standard 20002-K01
CYLINDER WORKS
$694.95CYLINDER WORKS Cylinder Kit Standard 20002-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...09310278- SKU:
- 09310278
- Availability:
- Ships Same Business Day
- Weight:
- 3.90 LBS
- COMPRESSION RATIO IMPERIAL:
- 12.7:1
- CYLINDER DIAMETER:
- 77,00 MM
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- STYLE:
- STANDARD
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
$694.95 -
CYLINDER WORKS Cylinder Kit - Standard 20002-K03
CYLINDER WORKS
$694.95CYLINDER WORKS Cylinder Kit Standard 20002-K03Ready-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...09310281- SKU:
- 09310281
- Availability:
- Ships Same Business Day
- Weight:
- 3.62 LBS
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
- STYLE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 77,00 MM
- PRODUCT NAME:
- CYLINDER KIT
- UNITS:
- KIT
$694.95 -
CYLINDER WORKS Cylinder Kit - Standard 20003-K01
CYLINDER WORKS
$694.95CYLINDER WORKS Cylinder Kit Standard 20003-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...09310282- SKU:
- 09310282
- Availability:
- Ships Same Business Day
- Weight:
- 3.33 LBS
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER METRIC:
- 95.00 MM
- DISPLACEMENT:
- 449 CC
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER DIAMETER:
- 95,00 MM
- STYLE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- ENGINE TYPE:
- 4-CYCLE
$694.95 -
CYLINDER WORKS Cylinder Kit - High Compression 10004-K01HC
CYLINDER WORKS
$559.95CYLINDER WORKS Cylinder Kit High Compression 10004-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...09310288- SKU:
- 09310288
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- CYLINDER DIAMETER:
- 66,00 MM
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- HIGH COMPRESSION
- COMPRESSION RATIO IMPERIAL:
- 12.2:1
- CYLINDER DIAMETER METRIC:
- 66.00 MM
- DISPLACEMENT:
- 149 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
$559.95 -
CYLINDER WORKS Cylinder Kit - High Compression 10001-K01HC
CYLINDER WORKS
$588.95CYLINDER WORKS Cylinder Kit High Compression 10001-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...09310289- SKU:
- 09310289
- Availability:
- Ships Same Business Day
- Weight:
- 3.50 LBS
- CYLINDER DIAMETER:
- 78,00 MM
- STYLE:
- HIGH COMPRESSION
- COMPRESSION RATIO IMPERIAL:
- 13.4:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER METRIC:
- 78.00 MM
- PRODUCT NAME:
- CYLINDER KIT
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
$588.95 -
BBR MOTORSPORTS Gasket Kit - Honda 411-HCF-1110
BBR MOTORSPORTS
$29.95BBR MOTORSPORTS Gasket Kit Honda 411-HCF-1110Gasket kit with both cylinder head and cylinder base gaskets09345378- SKU:
- 09345378
- Availability:
- Ships Same Business Day
- Weight:
- 0.01 LBS
- DISPLACEMENT:
- 132 CC
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CYLINDER HEAD
- STYLE:
- BIG BORE
- TYPE:
- CYLINDER BASE
- UNITS:
- KIT
$29.95Qty in Cart: 0Quantity:Price:$29.95Subtotal: -
MOOSE RACING Engine Oil Seal Kit - Honda 822357
MOOSE RACING
$56.63MOOSE RACING Engine Oil Seal Kit Honda 822357Includes every seal in a engine including crank shaft seals, Does not include valve stem seal, Made in the USA09351027- SKU:
- 09351027
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- PRODUCT NAME:
- SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- APPLICATION:
- ENGINE
- TYPE:
- OIL
$56.63 -
MOOSE RACING Oil Seal Set - Honda 822378
MOOSE RACING
$35.65MOOSE RACING Oil Seal Set Honda 822378Includes every seal in a engine including crank shaft seals, Does not include valve stem seal, Made in the USA09351052- SKU:
- 09351052
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- TYPE:
- OIL
- UNITS:
- KIT
- APPLICATION:
- ENGINE
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- SEAL KIT
- RIDING STYLE:
- OFF-ROAD
$35.65Qty in Cart: 0Quantity:Price:$35.65Subtotal: -
MOOSE RACING Oil Seal Set - Kawasaki 822379
MOOSE RACING
$27.37MOOSE RACING Oil Seal Set Kawasaki 822379Includes every seal in a engine including crank shaft seals, Does not include valve stem seal, Made in the USA09351053- SKU:
- 09351053
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- ENGINE
- TYPE:
- OIL
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- SEAL KIT
$27.37 -
MOOSE RACING Oil Seal Set - Yamaha 822994
MOOSE RACING
$27.37MOOSE RACING Oil Seal Set Yamaha 822994Includes every seal in a engine including crank shaft seals, Does not include valve stem seal, Made in the USA09351055- SKU:
- 09351055
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- APPLICATION:
- ENGINE
- TYPE:
- OIL
- PRODUCT NAME:
- SEAL KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$27.37 -
POWERSTANDS RACING Oil Cap Kit - Gold - M20 x 2.5 00-01311-23
POWERSTANDS RACING
$31.95POWERSTANDS RACING Oil Cap Kit Gold M20 x 2.5 00-01311-23CNC-machined from high-quality aluminum, E-clip is already safety wired to a mounting tab and the wire covered with silicon tubing that will not melt or discolor, Excellent resistance to extreme...09500562- SKU:
- 09500562
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- COLOR/FINISH:
- ANODIZED
- COLOR/FINISH:
- GOLD
- PRODUCT NAME:
- CAP KIT
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- TYPE:
- OIL FILLER
- RIDING STYLE:
- STREET
- DIAMETER - THREAD SIZE IMPERIAL:
- M20 X 2.5
- MATERIAL:
- ALUMINUM
$31.95Qty in Cart: 0Quantity:Price:$31.95Subtotal: -
PRO CIRCUIT Oil Filter Cover - KX450F PC4009-0015
PRO CIRCUIT
$39.95PRO CIRCUIT Oil Filter Cover KX450F PC4009-0015Machined from aircraft-grade aluminum, Polished to a mirror finish, then anodized for a one-of-a-kind look09401492- SKU:
- 09401492
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- COLOR/FINISH:
- RED
- MATERIAL:
- ALUMINUM
- COLOR/FINISH:
- WHITE
- PRODUCT NAME:
- COVER
- UNITS:
- EACH
- COLOR/FINISH:
- ANODIZED
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- OIL FILTER
- COLOR/FINISH:
- MIRROR
$39.95
