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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On Sale
KIBBLEWHITE Valve Guide - Exhaust - +0.010" 30-33639
KIBBLEWHITE
MSRP: $22.95Now: $15.00Was: $22.95Valve Guide - Exhaust - +0.010" All 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.09263384- SKU:
- 09263384
- Weight:
- 0.25 LBS
MSRP: $22.95Now: $15.00Was: $22.95 -
KIBBLEWHITE Spring Kit 40-41600
KIBBLEWHITE
$213.95Spring Kit Spring kit is designed with increased spring rates and high lift compatibility compared to the stock springs, Compatible with boosted or turbocharged applications, CNC-machined titanium retainers and Cr-Si dual springs provide valvetrain...09263385- SKU:
- 09263385
- Weight:
- 0.53 LBS
$213.95 -
KIBBLEWHITE Valve Kit - Intake 40-41650
KIBBLEWHITE
$168.95Valve Kit - Intake Full set of Black Diamond* stainless steel standard size valves for engine applications listed, All valves are impregnated by a special process to a depth of .002* with a surface buildup of .0002*, This process improves wear...09263386- SKU:
- 09263386
- Weight:
- 0.45 LBS
$168.95 -
KIBBLEWHITE Valve - Intake - White Diamond? 40-41612H
KIBBLEWHITE
$31.95Valve - Intake - White Diamond? White Diamond* valves are CNC machined from one-piece forgings of EV8 Stainless Steel or Inconel-751, Electroplated with a 360? anode, to produce an even coat of the highest grade hard chrome finish, Made in the U.S.A.09263387- SKU:
- 09263387
- Weight:
- 0.07 LBS
$31.95 -
KIBBLEWHITE Valve - Exhaust - White Diamond? 40-41616H
KIBBLEWHITE
$31.95Valve - Exhaust - White Diamond? White Diamond* valves are CNC machined from one-piece forgings of EV8 Stainless Steel or Inconel-751, Electroplated with a 360? anode, to produce an even coat of the highest grade hard chrome finish, Made in the U.S.A.09263388- SKU:
- 09263388
- Weight:
- 0.00 LBS
$31.95 -
KIBBLEWHITE Valve - Intake - Tensilite? 40-41612T
KIBBLEWHITE
$92.51Valve - Intake - Tensilite? Extensive R&D on all applications to provide high-performance components that last longer than OEM, Black Diamond valves are one-piece forgings made from 21-4N high-performance stainless steel, Trademarked Black Diamond...09263389- SKU:
- 09263389
- Weight:
- 0.21 LBS
$92.51 -
KIBBLEWHITE Valve - Exhaust - Tensilite? 40-41616T
KIBBLEWHITE
$92.51Valve - Exhaust - Tensilite? Tensilite? valves are CNC machined from one-piece forgings of 6AL4V or 6-2-4-2 titanium alloy, Finished with a CrN PVD coating that has a low coefficient of friction, and is impact, abrasion, and corrosion resistant, Made in...09263390- SKU:
- 09263390
- Weight:
- 0.21 LBS
$92.51 -
KIBBLEWHITE Valve Guide - Intake - Standard 40-41620
KIBBLEWHITE
$24.89Valve Guide - Intake - Standard All 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.09263391- SKU:
- 09263391
- Weight:
- 0.25 LBS
$24.89 -
On Sale
KIBBLEWHITE Valve Guide - Intake - +0.010" 40-41629
KIBBLEWHITE
MSRP: $22.95Now: $15.00Was: $22.95Valve Guide - Intake - +0.010" All 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.09263392- SKU:
- 09263392
- Weight:
- 0.25 LBS
MSRP: $22.95Now: $15.00Was: $22.95 -
KIBBLEWHITE Valve Guide - Exhaust - Standard 40-41630
KIBBLEWHITE
$24.89Valve Guide - Exhaust - Standard All 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.09263393- SKU:
- 09263393
- Weight:
- 0.26 LBS
$24.89 -
On Sale
KIBBLEWHITE Valve Guide - Exhaust - +0.010" 40-41639
KIBBLEWHITE
MSRP: $22.95Now: $15.00Was: $22.95Valve Guide - Exhaust - +0.010" All 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.09263394- SKU:
- 09263394
- Weight:
- 0.25 LBS
MSRP: $22.95Now: $15.00Was: $22.95 -
HOT RODS Bottom End Kit - OE Crankshaft Replacement - Polaris HR00106
HOT RODS
$1,473.95Bottom End Kit - OE Crankshaft Replacement - Polaris Kit features everything needed to complete crankshaft installation including Hot Rods main bearings and seals kit plus a complete engine gasket set that includes all gaskets and seals for a complete...09210890- SKU:
- 09210890
- Weight:
- 27.80 LBS
$1,473.95 -
HOT RODS Bottom End Kit - OE Crankshaft Replacement - Polaris HR00107
HOT RODS
$1,473.95Bottom End Kit - OE Crankshaft Replacement - Polaris Kit features everything needed to complete crankshaft installation including Hot Rods main bearings and seals kit plus a complete engine gasket set that includes all gaskets and seals for a complete...09210891- SKU:
- 09210891
- Weight:
- 27.90 LBS
$1,473.95 -
HOT RODS Bottom End Kit - OE Crankshaft Replacement - Polaris HR00118
HOT RODS
$1,473.95Bottom End Kit - OE Crankshaft Replacement - Polaris Kit features everything needed to complete crankshaft installation including Hot Rods main bearings and seals kit plus a complete engine gasket set that includes all gaskets and seals for a complete...09210897- SKU:
- 09210897
- Weight:
- 24.30 LBS
$1,473.95 -
MOOSE OFFROAD Carburetor Mid Body Gasket Kit - Honda 26-10157
MOOSE OFFROAD
$24.95Carburetor Mid Body Gasket Kit - Honda Kit includes all of the necessary components to reseal a FCR carburetor at its center section, Components not available from OEM, Kit includes replacement gaskets, O-rings, screws and specialty tool (if necessary)09351198- SKU:
- 09351198
- Weight:
- 0.10 LBS
$24.95 -
CYLINDER WORKS Cylinder - 66.40 mm - Yahama 20009
CYLINDER WORKS
$597.95Cylinder - 66.40 mm - Yahama Ready-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, Made in the U.S.A., Big bore cylinders do not require machine...09311078- SKU:
- 09311078
- Weight:
- 6.06 LBS
$597.95 -
MOOSE OFFROAD Cam Chain - DID25 x 82 Links MSEHCDID25082
MOOSE OFFROAD
$20.95Cam Chain - DID25 x 82 Links Made from the highest-quality select steel alloys, Lightweight and great durability, Features precision solid bushings and shot-peened, providing maximum strength, Made to meet or exceed OEM standards09251421- SKU:
- 09251421
- Weight:
- 0.26 LBS
$20.95 -
MOOSE OFFROAD Cam Chain - DID25H x 100 Links MSEHCDID25H100
MOOSE OFFROAD
$53.95Cam Chain - DID25H x 100 Links Made from the highest-quality select steel alloys, Lightweight and great durability, Features precision solid bushings and shot-peened, providing maximum strength, Made to meet or exceed OEM standards09251423- SKU:
- 09251423
- Weight:
- 0.31 LBS
$53.95 -
MOOSE OFFROAD Cam Chain - DID25H x 90 Links MSEHCDID25H090
MOOSE OFFROAD
$40.95Cam Chain - DID25H x 90 Links Made from the highest-quality select steel alloys, Lightweight and great durability, Features precision solid bushings and shot-peened, providing maximum strength, Made to meet or exceed OEM standards09251424- SKU:
- 09251424
- Weight:
- 0.26 LBS
$40.95 -
MOOSE OFFROAD Cam Chain - 92RH2015 x 96 Links MSEHC92RH2015096
MOOSE OFFROAD
$50.95Cam Chain - 92RH2015 x 96 Links Made from the highest-quality select steel alloys, Lightweight and great durability, Features precision solid bushings and shot-peened, providing maximum strength, Made to meet or exceed OEM standards09251425- SKU:
- 09251425
- Weight:
- 0.51 LBS
$50.95
