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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LA Sleeve Cylinder Sleeve for Honda XR400R 1996-2004 H5293
LA SLEEVE
$128.95LA SLEEVE Cylinder Sleeve H5293 Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5293, designed to restore performance and extend the lifespan of your cylinders. Crafted from high-quality materials, these sleeves provide a reliable solution for...H5293- SKU:
- H5293
- Availability:
- Ships Same Business Day
- Weight:
- 1.80 LBS
- COLOR/FINISH:
- ALUMINUM
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- RIDING STYLE:
- OFF-ROAD
- TYPE:
- RS
- BORE SIZE METRIC:
- 85.00 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
$128.95Qty in Cart: 0Quantity:Price:$128.95Subtotal: -
LA Sleeve Cylinder Sleeve 72mm Bore Polaris Trail Blazer 250 1990-2006 FL5168
LA SLEEVE
$171.95LA SLEEVE Cylinder Sleeve FL5168 Revitalize your engine with the LA SLEEVE Cylinder Sleeve FL5168, designed to restore performance and extend the lifespan of your old cylinders. Crafted with precision, these high-quality replacement sleeves ensure a...FL5168- SKU:
- FL5168
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- COLOR/FINISH:
- ALUMINUM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- CI
- BORE SIZE METRIC:
- 72.00 MM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
$171.95Qty in Cart: 0Quantity:Price:$171.95Subtotal: -
LA Sleeve Cylinder Sleeve 90mm Bore Honda TRX450FE 1998-2004 H5365
LA SLEEVE
$128.95LA SLEEVE Cylinder Sleeve H5365 Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5365, designed to restore the performance of worn-out cylinders. Crafted with precision and durability in mind, this replacement sleeve ensures a perfect fit and...H5365- SKU:
- H5365
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- BORE SIZE METRIC:
- 90.00 MM
- TYPE:
- RS
- COLOR/FINISH:
- ALUMINUM
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
$128.95 -
LA Sleeve Sleeve and Piston Kit Honda TRX450ES 1998-2004 LAS-5365K
LA SLEEVE
$328.95LA SLEEVE Sleeve and Piston Kit for Honda LAS-5365K Elevate your Honda's performance with the LA SLEEVE Sleeve and Piston Kit. This all-in-one top-end rebuild kit is engineered to enhance ring seal, resulting in improved compression, torque, and...09310359- SKU:
- 09310359
- Availability:
- Ships Same Business Day
- Weight:
- 4.20 LBS
- TYPE:
- CYLINDER
- UNITS:
- KIT
- PRODUCT NAME:
- REBUILD KIT
- MATERIAL:
- IRON
- RIDING STYLE:
- ATV
$328.95 -
LA Sleeve Cylinder Sleeve Honda TRX500FE 2005-2009 H5591
LA SLEEVE
$128.95LA SLEEVE Cylinder Sleeve H5591 Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5591, designed to restore performance and extend the life of your cylinders. Crafted with precision and durability in mind, this replacement sleeve ensures a...09310711- SKU:
- 09310711
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- BORE SIZE METRIC:
- 92.00 MM
- COLOR/FINISH:
- ALUMINUM
- RIDING STYLE:
- ATV
- UNITS:
- EACH
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- RS
$128.95 -
LA Sleeve Cylinder Sleeve for Polaris General 1000 2016-2017 FL5777
LA SLEEVE
$128.95LA SLEEVE Cylinder Sleeve for Polaris 1000 FL5777 Revitalize your Polaris 1000 engine with the LA SLEEVE Cylinder Sleeve, designed to restore performance and extend the life of your cylinders. Crafted from high-quality materials, this replacement sleeve...09311008- SKU:
- 09311008
- Availability:
- Ships Same Business Day
- Weight:
- 1.20 LBS
- PRODUCT NAME:
- SLEEVE
- UNITS:
- EACH
- RIDING STYLE:
- UTV
$128.95Qty in Cart: 0Quantity:Price:$128.95Subtotal: -
LA Sleeve Cylinder Sleeve for KTM 85 SX 2018-2022 FL5796
LA SLEEVE
$134.95LA SLEEVE Cylinder Sleeve KTM/Husqvarna 85 FL5796 Revitalize your KTM or Husqvarna 85 with the LA SLEEVE Cylinder Sleeve, designed to restore performance and extend the life of your engine. Crafted with precision, this high-quality replacement sleeve...09311010- SKU:
- 09311010
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- PRODUCT NAME:
- CYLINDER SLEEVE
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$134.95 -
LA Sleeve Cylinder Sleeve Yamaha YZ250 1996 YA5296
LA SLEEVE
$171.95High-Performance Replacement Cylinder Sleeves - YA5296 Revitalize your engine with our top-tier replacement cylinder sleeves, engineered to restore performance and enhance durability. Crafted from premium materials, these sleeves provide a seamless fit...YA5296- SKU:
- YA5296
- Availability:
- Ships Same Business Day
- Weight:
- 1.12 LBS
- COLOR/FINISH:
- CHROME
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- BORE SIZE METRIC:
- 68.00 MM
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- AC
$171.95Qty in Cart: 0Quantity:Price:$171.95Subtotal: -
LA Sleeve Big Bore Cylinder Sleeve for Honda TRX400EX 1999-2008 H5445
LA SLEEVE
$134.95LA SLEEVE Cylinder Sleeve H5445 Revitalize your engine with the LA SLEEVE Cylinder Sleeve H5445, designed for superior performance and durability. This high-quality replacement sleeve rejuvenates old cylinders, ensuring optimal fit and functionality...09310054- SKU:
- 09310054
- Availability:
- Ships Same Business Day
- Weight:
- 1.85 LBS
- BORE SIZE METRIC:
- 88.00 MM
- COLOR/FINISH:
- ALUMINUM
- RIDING STYLE:
- ATV
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- PRODUCT NAME:
- CYLINDER SLEEVE
- TYPE:
- BIG BORE
- CYLINDER BORE COATING:
- CHROME-MOLY ALLOY
$134.95Qty in Cart: 0Quantity:Price:$134.95Subtotal: -
KIBBLEWHITE Spring Kit 30-31600
KIBBLEWHITE
$207.83KIBBLEWHITE Spring Kit 30-31600Spring kits contain springs and titanium upper collars; lower collars included as required; spring kits are engineered for use with standard and oversized valves, Spring kits come complete for one motor, Keepers are not...09262345- SKU:
- 09262345
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- APPLICATION:
- INTAKE
- RIDING STYLE:
- OFF-ROAD
- SPRING LIFT IMPERIAL:
- 0.440'
- SPRING OPEN PRESSURE:
- INTAKE 147 LB, EXHAUST 203 LB
- MATERIAL:
- TITANIUM
- PRODUCT NAME:
- SPRING KIT
- UNITS:
- KIT
- APPLICATION:
- EXHAUST
- TYPE:
- VALVE
$207.83 -
KIBBLEWHITE Intake Valve 40-40652
KIBBLEWHITE
$31.01KIBBLEWHITE Intake Valve 40-40652Black Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel, Black Diamond™ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear, Made in the U...09262355- SKU:
- 09262355
- Availability:
- Ships Same Business Day
- Weight:
- 0.09 LBS
- STEM DIAMETER IMPERIAL:
- 0.2155'
- PRODUCT NAME:
- VALVE
- TULIP ANGLE:
- 20°
- HEAD DIAMETER METRIC:
- 35.99 MM
- LENGTH IMPERIAL:
- 3.080'
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- MATERIAL:
- STAINLESS STEEL
- MODEL:
- BLACK DIAMOND™
$31.01 -
KIBBLEWHITE Exhaust Valve 40-40656
KIBBLEWHITE
$31.01KIBBLEWHITE Exhaust Valve 40-40656Black Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel, Black Diamond™ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear, Made in the...09262357- SKU:
- 09262357
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- PRODUCT NAME:
- VALVE
- TULIP ANGLE:
- 20°
- HEAD DIAMETER METRIC:
- 31.01 MM
- LENGTH IMPERIAL:
- 3.030'
- MODEL:
- BLACK DIAMOND™
- STEM DIAMETER IMPERIAL:
- 0.2150'
$31.01 -
KIBBLEWHITE Spring Kit 40-40660
KIBBLEWHITE
$220.26KIBBLEWHITE Spring Kit 40-40660Spring kits contain springs and titanium upper collars; lower collars included as required; spring kits are engineered for use with standard and oversized valves, Spring kits come complete for one motor, Keepers are not...09262359- SKU:
- 09262359
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- APPLICATION:
- INTAKE
- RIDING STYLE:
- OFF-ROAD
- APPLICATION:
- EXHAUST
- SPRING LIFT IMPERIAL:
- 0.415'
- SPRING OPEN PRESSURE:
- INTAKE 169 LB, EXHAUST 170 LB
- TYPE:
- VALVE
- MATERIAL:
- TITANIUM
- PRODUCT NAME:
- SPRING KIT
- UNITS:
- KIT
$220.26 -
KIBBLEWHITE Valve Guide 40-40670
KIBBLEWHITE
$17.83KIBBLEWHITE Valve Guide 40-40670All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance, Made in the U.S.A.09262360- SKU:
- 09262360
- Availability:
- Ships Same Business Day
- Weight:
- 0.03 LBS
- RIDING STYLE:
- OFF-ROAD
- INSIDE DIAMETER IMPERIAL:
- 0.2150'
- MATERIAL:
- NICKEL
- SIZE IMPERIAL:
- STANDARD
- MATERIAL:
- AMPCO-45
- OUTSIDE DIAMETER IMPERIAL:
- 0.4365'
- PRODUCT NAME:
- VALVE GUIDE
- UNITS:
- EACH
- APPLICATION:
- EXHAUST
- MATERIAL:
- BRONZE
$17.83 -
KIBBLEWHITE Intake Valve 40-40920
KIBBLEWHITE
$31.01KIBBLEWHITE Intake Valve 40-40920Black Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel, Black Diamond™ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear, Made in the U...09262372- SKU:
- 09262372
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- STEM DIAMETER IMPERIAL:
- 0.1960'
- LENGTH IMPERIAL:
- 3.610'
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- UTV
- APPLICATION:
- INTAKE
- HEAD DIAMETER METRIC:
- 30.00 MM
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- ATV
- TULIP ANGLE:
- 10°
$31.01 -
KIBBLEWHITE Exhaust Valve 40-40925
KIBBLEWHITE
$31.01KIBBLEWHITE Exhaust Valve 40-40925Black Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel, Black Diamond™ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear, Made in the...09262375- SKU:
- 09262375
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- LENGTH IMPERIAL:
- 3.655'
- APPLICATION:
- EXHAUST
- MATERIAL:
- STAINLESS STEEL
- UNITS:
- EACH
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- ATV
- STEM DIAMETER IMPERIAL:
- 0.1955'
- TULIP ANGLE:
- 10°
- HEAD DIAMETER METRIC:
- 27.00 MM
- PRODUCT NAME:
- VALVE
- RIDING STYLE:
- UTV
$31.01 -
KIBBLEWHITE Valve Guide 60-60730
KIBBLEWHITE
$15.92KIBBLEWHITE Valve Guide 60-60730All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance, Made in the U.S.A.09262381- SKU:
- 09262381
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MATERIAL:
- BRONZE
- OUTSIDE DIAMETER IMPERIAL:
- 0.4170'
- PRODUCT NAME:
- VALVE GUIDE
- APPLICATION:
- EXHAUST
- MATERIAL:
- AMPCO-45
- MATERIAL:
- NICKEL
- SIZE IMPERIAL:
- STANDARD
- INSIDE DIAMETER IMPERIAL:
- 0.2155'
- RIDING STYLE:
- OFF-ROAD
- UNITS:
- EACH
$15.92 -
KIBBLEWHITE Valve Seal - 6mm 71017-4
KIBBLEWHITE
$13.96KIBBLEWHITE Valve Seal 6mm 71017-4All valve seals are made of 100% solid Viton® for long life, Meet or exceed OEM specifications, When using Kibblewhite spring kits, Kibblewhite valve seals must be used because of spring clearances, Made in the U.S.A.09262383- SKU:
- 09262383
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- STEM DIAMETER METRIC:
- 6.00 MM
- APPLICATION:
- EXHAUST
- OUTSIDE DIAMETER IMPERIAL:
- 0.4750'
- PRODUCT NAME:
- SEAL
- TYPE:
- VALVE
- RIDING STYLE:
- ADVENTURE TOURING / DUAL-SPORT
- RIDING STYLE:
- ATV
- MATERIAL:
- VITON
- UNITS:
- 4 PACK
$13.96 -
KIBBLEWHITE Exhaust Valve Guide 82-82380
KIBBLEWHITE
$18.54KIBBLEWHITE Exhaust Valve Guide 82-82380All valve guides are made of Ampco-45, a high-performance compound with 80% copper content to provide great heat conductivity and 5% nickel content for wear resistance, Made in the U.S.A.09262397- SKU:
- 09262397
- Availability:
- Ships Same Business Day
- Weight:
- 0.05 LBS
- APPLICATION:
- EXHAUST
- MATERIAL:
- AMPCO-45
- PRODUCT NAME:
- VALVE GUIDE
- RIDING STYLE:
- ATV
- SIZE IMPERIAL:
- STANDARD
- INSIDE DIAMETER IMPERIAL:
- 0.2155'
- OUTSIDE DIAMETER IMPERIAL:
- 0.4353'
- UNITS:
- EACH
$18.54 -
KIBBLEWHITE Intake Valve 82-82312
KIBBLEWHITE
$37.55KIBBLEWHITE Intake Valve 82-82312Black Diamond™ valves are CNC machined from one-piece forgings of EV8 Stainless Steel, Black Diamond™ proprietary multi-stage process reduces friction, and provides superior resistance to corrosion and wear, Made in the U...09262400- SKU:
- 09262400
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- TULIP ANGLE:
- 25°
- MATERIAL:
- STAINLESS STEEL
- STEM DIAMETER IMPERIAL:
- 0.2357'
- UNITS:
- EACH
- APPLICATION:
- INTAKE
- HEAD DIAMETER METRIC:
- 35.00 MM
- LENGTH IMPERIAL:
- 4.510'
- MODEL:
- BLACK DIAMOND™
- RIDING STYLE:
- ATV
- PRODUCT NAME:
- VALVE
$37.55
