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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COMETIC Gasket Set - 77 mm - Yamaha C7905-EST
COMETIC
$83.95COMETIC Gasket Set 77 mm Yamaha C7905-ESTTop 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...09340932- SKU:
- 09340932
- Availability:
- Ships Same Business Day
- Weight:
- 0.19 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- TOP END
- UNITS:
- KIT
- BORE SIZE METRIC:
- 77.00 MM
- ENGINE TYPE:
- 4-STROKE
- PRODUCT NAME:
- GASKET KIT
$83.95Qty in Cart: 0Quantity:Price:$83.95Subtotal: -
COMETIC Gasket Set - 78 mm - Honda C3133-EST
COMETIC
$84.95COMETIC Gasket Set 78 mm Honda C3133-ESTTop 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...09340920- SKU:
- 09340920
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- TYPE:
- TOP END
- BORE SIZE METRIC:
- 78.00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
$84.95 -
COMETIC Gasket Set - 96 mm - Honda C3047-EST
COMETIC
$88.95COMETIC Gasket Set 96 mm Honda C3047-ESTTop 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...09340905- SKU:
- 09340905
- Availability:
- Ships Same Business Day
- Weight:
- 0.17 LBS
- TYPE:
- TOP END
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- BORE SIZE METRIC:
- 96.00 MM
$88.95 -
BBR MOTORSPORTS Gasket Kit - CRF150 411-HCF-1502
BBR MOTORSPORTS
$26.95BBR MOTORSPORTS Gasket Kit CRF150 411-HCF-1502Replacement gaskets for 175CC BBR Motorsports Big Bore Kits, Includes head and base gaskets09340647- SKU:
- 09340647
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CYLINDER BASE
- TYPE:
- CYLINDER HEAD
- UNITS:
- KIT
- DISPLACEMENT:
- 175 CC
- PRODUCT NAME:
- GASKET KIT
$26.95Qty in Cart: 0Quantity:Price:$26.95Subtotal: -
BBR MOTORSPORTS Gasket Kit - CRF230 410-HCF-2310
BBR MOTORSPORTS
$48.95BBR MOTORSPORTS Gasket Kit CRF230 410-HCF-2310Replacement gaskets for 240CC Big Bore Kits, Includes head and base gaskets09340646- SKU:
- 09340646
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- DISPLACEMENT:
- 240 CC
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CYLINDER BASE
- UNITS:
- KIT
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- CYLINDER HEAD
$48.95Qty in Cart: 0Quantity:Price:$48.95Subtotal: -
BBR MOTORSPORTS Gasket Kit - TTR125 411-YTR-1210
BBR MOTORSPORTS
$26.95BBR MOTORSPORTS Gasket Kit TTR125 411-YTR-1210Replacement Gaskets for BBR Motorsports 150CC Big Bore Cam Kit, Gasket kit including cylinder head and base gaskets09340645- SKU:
- 09340645
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- PRODUCT NAME:
- GASKET KIT
- STYLE:
- BIG BORE
- DISPLACEMENT:
- 150 CC
- TYPE:
- CYLINDER HEAD
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- CYLINDER BASE
- UNITS:
- KIT
$26.95Qty in Cart: 0Quantity:Price:$26.95Subtotal: -
BBR MOTORSPORTS Gasket Kit - Honda 50 411-HXR-5210
BBR MOTORSPORTS
$26.95BBR MOTORSPORTS Gasket Kit Honda 50 411-HXR-5210Replacement Gasket designed for BBR 88cc Big Bore Kit09340643- SKU:
- 09340643
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- PRODUCT NAME:
- GASKET KIT
- BORE SIZE METRIC:
- 52.00 MM
- DISPLACEMENT:
- 88 CC
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- BIG BORE
- UNITS:
- KIT
$26.95 -
BBR MOTORSPORTS Gasket - 120CC XR/CRF100 411-HXR-1010
BBR MOTORSPORTS
$26.95BBR MOTORSPORTS Gasket 120CC XR/CRF100 411-HXR-1010Replacement gasket kit for BBR 120CC Big Bore Kit09340641- SKU:
- 09340641
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- TYPE:
- BIG BORE
- DISPLACEMENT:
- 120 CC
- PRODUCT NAME:
- GASKET KIT
- UNITS:
- KIT
- RIDING STYLE:
- OFF-ROAD
$26.95Qty in Cart: 0Quantity:Price:$26.95Subtotal: -
ATHENA Cylinder Gasket Kit - Yamaha 070203/1
ATHENA
$14.95ATHENA Cylinder Gasket Kit Yamaha 070203/1Replacement cylinder gasket kit for Athena 70cc bolt-on big bore kits09340639- SKU:
- 09340639
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- STREET
- TYPE:
- TOP END
- PRODUCT NAME:
- GASKET KIT
- UNITS:
- KIT
$14.95Qty in Cart: 0Quantity:Price:$14.95Subtotal: -
ATHENA Cylinder Gasket Kit - Yamaha 070103/1
ATHENA
$14.95ATHENA Cylinder Gasket Kit Yamaha 070103/1Replacement cylinder gasket kit for Athena 70cc bolt-on big bore kits09340638- SKU:
- 09340638
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- RIDING STYLE:
- STREET
- PRODUCT NAME:
- GASKET KIT
- TYPE:
- TOP END
- UNITS:
- KIT
$14.95 -
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...09340315- SKU:
- 09340315
- 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
$65.75WINDEROSA 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.09340271- SKU:
- 09340271
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- PRODUCT NAME:
- GASKET KIT
- RIDING STYLE:
- WATERCRAFT
- TYPE:
- TOP END
- UNITS:
- KIT
$65.75 -
ATHENA Top End Gasket Kit P400270600220/1
ATHENA
$51.95ATHENA 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...09340234- SKU:
- 09340234
- 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
$51.95 -
ATHENA Gasket - KLX/DRZ/KFX/LTZ400 P400510160002
ATHENA
$133.95ATHENA 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,...09340194- SKU:
- 09340194
- 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
$133.95 -
ATHENA Cylinder Gasket Kit - KX125 P400250160001
ATHENA
$57.95ATHENA 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,...09340190- SKU:
- 09340190
- 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
$57.95 -
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...09330097- SKU:
- 09330097
- 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: -
Cylinder Works Standard Bore High Compression Cylinder Kit for Polaris RZR 900 2015-2016 60004-K01HC
CYLINDER WORKS
$1,253.95CYLINDER WORKS Cylinder Kit 60004-K01HC Experience enhanced performance and reliability with the CYLINDER WORKS Cylinder Kit 60004-K01HC. Designed for effortless installation, this kit features a direct bolt-on design that eliminates the need for...09310735- SKU:
- 09310735
- 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
$1,253.95 -
Cylinder Works Standard Bore Cylinder Kit for Polaris ACE 900 EPS 2016 60004-K02
CYLINDER WORKS
$1,060.95CYLINDER WORKS Cylinder Standard Bore 60004-K02 Upgrade your engine with the CYLINDER WORKS Standard Bore Cylinder, designed for seamless installation and superior performance. This ready-to-install solution features a perfect match with OEM...09310734- SKU:
- 09310734
- 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
$1,060.95Qty in Cart: 0Quantity:Price:$1,060.95Subtotal: -
Cylinder Works Standard Bore Cylinder Kit for Polaris RZR 900 2015-2016 60004
CYLINDER WORKS
$622.95CYLINDER WORKS Cylinder Standard 60004 Upgrade your engine with the CYLINDER WORKS Cylinder Standard 60004, designed for effortless installation and optimal performance. This high-quality, direct bolt-on cylinder matches the aesthetics of OEM cylinders...09310733- SKU:
- 09310733
- 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
$622.95 -
Cylinder Works Cylinder Kit Standard 40004-K02
CYLINDER WORKS
$652.95CYLINDER WORKS Cylinder Kit Standard 40004-K02 Elevate your engine's performance with the CYLINDER WORKS Cylinder Kit Standard 40004-K02. This premium kit is designed for enthusiasts seeking a reliable, high-quality replacement that mirrors the original...09310502- SKU:
- 09310502
- 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
$652.95
