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 Big Bore Cylinder Kit for Suzuki RM-Z250 2013-2018 41004-K02
CYLINDER WORKS
$740.95CYLINDER WORKS Big Bore Cylinder Kit 41004-K02 Elevate your engine's performance with the CYLINDER WORKS Big Bore Cylinder Kit. Designed for seamless installation, this kit offers an exceptional balance of power and durability, ensuring your ride...09310501- SKU:
- 09310501
- Availability:
- Ships Same Business Day
- Weight:
- 3.20 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- CYLINDER DIAMETER METRIC:
- 80.00 MM
- RIDING STYLE:
- OFF-ROAD
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 80,00 MM
- DISPLACEMENT:
- 269 CC
- OVERBORE METRIC:
- +3.00 MM
- UNITS:
- KIT
$740.95 -
Cylinder Works Standard Bore Cylinder Kit KTM 65 SX 2009-2023 50005-K01
CYLINDER WORKS
$730.95CYLINDER WORKS Cylinder Kit Standard 50005-K01 Upgrade your engine with the CYLINDER WORKS Cylinder Kit, designed for effortless installation and superior performance. This ready-to-install kit features OEM-like aesthetics and unmatched durability,...09310500- SKU:
- 09310500
- Availability:
- Ships Same Business Day
- Weight:
- 2.85 LBS
- COMPRESSION RATIO IMPERIAL:
- 2.09:1
- PRODUCT NAME:
- CYLINDER KIT
- CYLINDER DIAMETER:
- 45,00 MM
- CYLINDER DIAMETER METRIC:
- 45.00 MM
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- ENGINE TYPE:
- 2-CYCLE
- UNITS:
- KIT
- DISPLACEMENT:
- 65 CC
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- STANDARD
$730.95 -
Cylinder Works Standard Bore Cylinder Kit 2013-2015 KTM 350 SX-F 350 XC-F 50003-K01
CYLINDER WORKS
$803.95CYLINDER WORKS Cylinder Kit Standard 50003-K01 Experience superior performance and reliability with the CYLINDER WORKS Cylinder Kit. Designed for easy installation, this direct bolt-on solution mimics the quality of OEM cylinders while enhancing your...09310497- SKU:
- 09310497
- Availability:
- Ships Same Business Day
- Weight:
- 3.85 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.6:1
- CYLINDER DIAMETER:
- 88,00 MM
- ENGINE TYPE:
- 4-CYCLE
- STYLE:
- STANDARD
- CYLINDER DIAMETER METRIC:
- 88.00 MM
- DISPLACEMENT:
- 350 CC
- RIDING STYLE:
- OFF-ROAD
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- PRODUCT NAME:
- CYLINDER KIT
- UNITS:
- KIT
$803.95 -
Cylinder Works Big Bore Cylinder Kit for 2013-2015 KTM 350 SX-F 35003-K01
CYLINDER WORKS
$909.95CYLINDER WORKS Big Bore Cylinder Kit 51003-K01 Enhance your engine's performance with the CYLINDER WORKS Big Bore Cylinder Kit. This ready-to-install kit offers a seamless fit, eliminating the need for re-plating while delivering the durability and...09310495- SKU:
- 09310495
- Availability:
- Ships Same Business Day
- Weight:
- 3.70 LBS
- ENGINE TYPE:
- 4-CYCLE
- CYLINDER DIAMETER METRIC:
- 90.00 MM
- COMPRESSION RATIO IMPERIAL:
- 13.5:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 90,00 MM
- DISPLACEMENT:
- 365 CC
- OVERBORE METRIC:
- +2.00 MM
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- BIG BORE
- UNITS:
- KIT
$909.95 -
Cylinder Works Yamaha YZ 450 F 2010-2013 High Compression Cylinder Kit 21005-K01
CYLINDER WORKS
$834.95High Compression Cylinder Kit 21005-K01 by CYLINDER WORKS Elevate your engine's performance with the CYLINDER WORKS High Compression Cylinder Kit. Designed for effortless installation, this kit offers an exact fit and enhanced durability, making it an...09310354- SKU:
- 09310354
- Availability:
- Ships Same Business Day
- Weight:
- 4.45 LBS
- CYLINDER DIAMETER METRIC:
- 99.00 MM
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 468 CC
- STYLE:
- HIGH COMPRESSION
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- CYLINDER DIAMETER:
- 99,00 MM
- ENGINE TYPE:
- 4-CYCLE
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- PRODUCT NAME:
- CYLINDER KIT
- UNITS:
- KIT
$834.95 -
Cylinder Works Standard Bore Cylinder Kit 77mm 13.4:1 Compression Suzuki RM-Z250 2007-2009 40003-K01
CYLINDER WORKS
$652.95CYLINDER WORKS Cylinder Kit Standard 40003-K01 Experience unmatched performance and durability with the CYLINDER WORKS Cylinder Kit Standard 40003-K01. This ready-to-install kit offers a seamless fit with your OEM setup, ensuring a hassle-free upgrade...09310352- SKU:
- 09310352
- Availability:
- Ships Same Business Day
- Weight:
- 3.20 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER DIAMETER:
- 77,00 MM
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- STYLE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 13.4:1
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
$652.95 -
Cylinder Works Big Bore Cylinder Kit Yamaha YZ85 2002-2018 103.5cc 21007-K01
CYLINDER WORKS
$885.95CYLINDER WORKS Big Bore Cylinder Kit 21007-K01 Upgrade your engine's performance with the CYLINDER WORKS Big Bore Cylinder Kit. Designed for easy installation, this kit offers a seamless fit with no need for re-plating, ensuring your bike runs smoothly...09310346- SKU:
- 09310346
- Availability:
- Ships Same Business Day
- Weight:
- 3.60 LBS
- COMPRESSION RATIO IMPERIAL:
- 8.2:1
- ENGINE TYPE:
- 2-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- DISPLACEMENT:
- 103.5 CC
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 52.50 MM
- CYLINDER DIAMETER:
- 52,50 MM
- OVERBORE METRIC:
- +5.00 MM
$885.95 -
Cylinder Works Standard Bore Cylinder Kit 2010-2013 Yamaha YZ450F 20005-K01
CYLINDER WORKS
$744.95CYLINDER WORKS Cylinder Kit Standard 20005-K01 Upgrade your engine with the CYLINDER WORKS Cylinder Kit, designed for easy installation and optimal performance. This ready-to-install kit features high-quality components that mirror OEM specifications,...09310345- SKU:
- 09310345
- Availability:
- Ships Same Business Day
- Weight:
- 4.58 LBS
- CYLINDER DIAMETER:
- 97,00 MM
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- STYLE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 12.5:1
- CYLINDER DIAMETER METRIC:
- 97.00 MM
- ENGINE TYPE:
- 4-CYCLE
- DISPLACEMENT:
- 449 CC
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$744.95 -
Cylinder Works Suzuki RM-Z250 2010-2012 Standard Bore Cylinder Kit 40004-K01
CYLINDER WORKS
$652.95CYLINDER WORKS Cylinder Kit Standard 40004-K01 Experience unparalleled performance and reliability with the CYLINDER WORKS Cylinder Kit Standard 40004-K01. Designed as a direct bolt-on replacement, this ready-to-install kit ensures a seamless fit and...09310343- SKU:
- 09310343
- Availability:
- Ships Same Business Day
- Weight:
- 3.25 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.4:1
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- STANDARD
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 77,00 MM
- PRODUCT NAME:
- CYLINDER KIT
- UNITS:
- KIT
$652.95Qty in Cart: 0Quantity:Price:$652.95Subtotal: -
Cylinder Works Kawasaki KX250F 2010 Standard Bore Cylinder Kit 77mm 13.2:1 30005-K01
CYLINDER WORKS
$629.95CYLINDER WORKS Cylinder Kit Standard 30005-K01 Upgrade your engine with the CYLINDER WORKS Cylinder Kit, designed for seamless installation and optimal performance. This ready-to-install kit combines high-quality components to enhance longevity and...09310341- SKU:
- 09310341
- Availability:
- Ships Same Business Day
- Weight:
- 3.30 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.2:1
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER DIAMETER:
- 77,00 MM
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- STYLE:
- STANDARD
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
$629.95 -
Cylinder Works Honda CRF 250R 2010-2017 Big Bore Cylinder Kit 270cc 11007-K01
CYLINDER WORKS
$702.95CYLINDER WORKS Big Bore Cylinder Kit - Model 11007-K01 Upgrade your engine's performance effortlessly with the CYLINDER WORKS Big Bore Cylinder Kit. Designed for a perfect fit, this ready-to-install kit enhances power and efficiency while maintaining the...09310340- SKU:
- 09310340
- Availability:
- Ships Same Business Day
- Weight:
- 3.68 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.2:1
- CYLINDER DIAMETER METRIC:
- 80.00 MM
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 270 CC
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 80,00 MM
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- UNITS:
- KIT
- ENGINE TYPE:
- 4-CYCLE
- OVERBORE METRIC:
- +3.20 MM
$702.95 -
Cylinder Works Standard Bore Cylinder Kit Honda CRF250R 2010-2013 10007-K01
CYLINDER WORKS
$553.95CYLINDER WORKS Cylinder Kit Standard 10007-K01 Elevate your engine's performance with the CYLINDER WORKS Cylinder Kit. Designed for seamless installation, this kit offers a reliable solution that mirrors the quality of OEM cylinders while enhancing...09310338- SKU:
- 09310338
- Availability:
- Ships Same Business Day
- Weight:
- 3.55 LBS
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 76,80 MM
- UNITS:
- KIT
- CYLINDER DIAMETER METRIC:
- 76.80 MM
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 13.2:1
$553.95Qty in Cart: 0Quantity:Price:$553.95Subtotal: -
ATHENA Cylinder Kit - KXF450 P400250100015
ATHENA
$939.95ATHENA Cylinder Kit KXF450 P400250100015Kits 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, All...09310328- SKU:
- 09310328
- Availability:
- Ships Same Business Day
- Weight:
- 4.98 LBS
- DISPLACEMENT:
- 490 CC
- MATERIAL:
- ALUMINUM
- ENGINE TYPE:
- 4-STROKE
- STYLE:
- BIG BORE
- BORE SIZE METRIC:
- 100.00 MM
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER BORE COATING:
- NICKEL-CARBIDE
$939.95Qty in Cart: 0Quantity:Price:$939.95Subtotal: -
ATHENA Cylinder Kit - KX250F P400250100013
ATHENA
$1,105.30ATHENA Cylinder Kit KX250F P400250100013Kits 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, All...09310308- SKU:
- 09310308
- Availability:
- Ships Same Business Day
- Weight:
- 3.02 LBS
- BORE SIZE METRIC:
- 83.00 MM
- DISPLACEMENT:
- 290 CC
- ENGINE TYPE:
- 4-STROKE
- RIDING STYLE:
- OFF-ROAD
- CYLINDER BORE COATING:
- NICKEL-CARBIDE
- MATERIAL:
- ALUMINUM
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- BIG BORE
- UNITS:
- KIT
$1,105.30 -
Cylinder Works Kawasaki KX250F 2009 Standard Bore Cylinder Kit 30004-K01
CYLINDER WORKS
$629.95CYLINDER WORKS Cylinder Kit Standard 30004-K01 Experience enhanced performance and reliability with the Cylinder Works Cylinder Kit. This ready-to-install, direct bolt-on solution is designed to seamlessly replace your OEM cylinders, ensuring a perfect...09310277- SKU:
- 09310277
- Availability:
- Ships Same Business Day
- Weight:
- 3.15 LBS
- COMPRESSION RATIO IMPERIAL:
- 13.2:1
- CYLINDER DIAMETER METRIC:
- 77.00 MM
- RIDING STYLE:
- OFF-ROAD
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
- STYLE:
- STANDARD
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 77,00 MM
- PRODUCT NAME:
- CYLINDER KIT
- UNITS:
- KIT
$629.95 -
Cylinder Works Standard Bore Cylinder Kit for 2002-2008 Honda CRF450R 10002-K01
CYLINDER WORKS
$603.95CYLINDER WORKS Cylinder Kit Standard 10002-K01 Upgrade your engine's performance with the CYLINDER WORKS Cylinder Kit Standard 10002-K01. This ready-to-install, direct bolt-on cylinder kit is designed for seamless integration, offering exceptional...09310272- SKU:
- 09310272
- Availability:
- Ships Same Business Day
- Weight:
- 4.51 LBS
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER:
- 96,00 MM
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- COMPRESSION RATIO IMPERIAL:
- 12.1:1
- DISPLACEMENT:
- 449 CC
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- CYLINDER DIAMETER METRIC:
- 96.00 MM
- STYLE:
- STANDARD
$603.95 -
Cylinder Works Standard Bore Cylinder Kit Honda CRF250R 2008-2009 10001-K02
CYLINDER WORKS
$564.95CYLINDER WORKS Cylinder Kit Standard 10001-K02 Upgrade your engine performance with the CYLINDER WORKS Cylinder Kit Standard 10001-K02. Designed for easy installation, this kit offers a seamless fit and enhances the longevity of your motorcycle. With...09310271- SKU:
- 09310271
- Availability:
- Ships Same Business Day
- Weight:
- 3.55 LBS
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- STYLE:
- STANDARD
- COMPRESSION RATIO IMPERIAL:
- 13.0:1
- CYLINDER DIAMETER:
- 78,00 MM
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER METRIC:
- 78.00 MM
$564.95 -
Cylinder Works Standard Bore Cylinder Kit Honda CRF450R 2017-2018 10001-K01
CYLINDER WORKS
$553.95CYLINDER WORKS Cylinder Kit Standard 10001-K01 Enhance your engine's performance with the CYLINDER WORKS Cylinder Kit, designed for easy installation and maximum durability. These high-quality, ready-to-install cylinders mirror the OEM design, ensuring a...09310270- SKU:
- 09310270
- Availability:
- Ships Same Business Day
- Weight:
- 4.32 LBS
- COMPRESSION RATIO IMPERIAL:
- 12.9:1
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER METRIC:
- 78.00 MM
- CYLINDER DIAMETER:
- 78,00 MM
- DISPLACEMENT:
- 249 CC
- ENGINE TYPE:
- 4-CYCLE
- PRODUCT NAME:
- CYLINDER KIT
- STYLE:
- STANDARD
$553.95 -
Cylinder Works Cylinder Kit Standard 66mm Bore 11.7:1 Compression Honda CRF150R 2007-2009 10004-K01
CYLINDER WORKS
$509.95CYLINDER WORKS Cylinder Kit Standard 10004-K01 Enhance your engine's performance with the Cylinder Works Cylinder Kit, designed for effortless installation and superior durability. This complete kit includes everything you need to achieve optimal engine...09310269- SKU:
- 09310269
- Availability:
- Ships Same Business Day
- Weight:
- 2.80 LBS
- CYLINDER BORE COATING:
- NICKEL-SILICON CARBIDE
- CYLINDER DIAMETER METRIC:
- 66.00 MM
- STYLE:
- STANDARD
- CYLINDER DIAMETER:
- 66,00 MM
- DISPLACEMENT:
- 149 CC
- ENGINE TYPE:
- 4-CYCLE
- COMPRESSION RATIO IMPERIAL:
- 11.7:1
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- KIT
$509.95 -
ATHENA Cylinder Kit - YZ125 - 58mm P400485100029
ATHENA
$1,223.95ATHENA Cylinder Kit YZ125 58mm P400485100029Kits 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,...09310258- SKU:
- 09310258
- Availability:
- Ships Same Business Day
- Weight:
- 5.43 LBS
- BORE SIZE METRIC:
- 58.00 MM
- MATERIAL:
- ALUMINUM
- CYLINDER BORE COATING:
- NICKEL-CARBIDE
- ENGINE TYPE:
- 2-STROKE
- DISPLACEMENT:
- 144 CC
- PRODUCT NAME:
- CYLINDER KIT
- RIDING STYLE:
- OFF-ROAD
- STYLE:
- BIG BORE
- UNITS:
- KIT
$1,223.95
