Engine Kits & Rotating Assemblies

Rebuild Kit, Complete Bottom End, for use on Honda®, CRF450X, Kit

Part Number: HRI-CBK0105

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Estimated Ship Date: Oct 13, 2025 if ordered today

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Rebuild Kit, Complete Bottom End, Yamaha, YZ450F, Kit

Part Number: HRI-CBK0110

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Estimated Ship Date: Oct 13, 2025 if ordered today

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Rebuild Kit, Complete Bottom End, Suzuki, LT-R450 QuadRacer, Kit

Part Number: HRI-CBK0112

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Estimated Ship Date: Oct 13, 2025 if ordered today

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Rebuild Kit, Complete Bottom End, Yamaha, YFM700, YXR700F, Kit

Part Number: HRI-CBK0115

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Estimated Ship Date: Oct 13, 2025 if ordered today

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Rebuild Kit, Complete Bottom End, Kawasaki, Kit

Part Number: HRI-CBK0118

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Estimated Ship Date: Oct 13, 2025 if ordered today

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Rebuild Kit, Complete Bottom End, for use on Honda®, Kit

Part Number: HRI-CBK0131

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Estimated Ship Date: Oct 13, 2025 if ordered today

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COMPLETE BOTTOM END KIT

Part Number: HRI-CBK0140

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Estimated Ship Date: Oct 13, 2025 if ordered today

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COMPLETE BOTTOM END KIT

Part Number: HRI-CBK0145

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Rebuild Kit, Complete Bottom End, Stroker Crank, Yamaha, Kit

Part Number: HRI-CBK0150

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Estimated Ship Date: Oct 13, 2025 if ordered today

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Rebuild Kit, Complete Bottom End, Kawasaki, Kit

Part Number: HRI-CBK0171

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Estimated Ship Date: Oct 13, 2025 if ordered today

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Rebuild Kit, Complete Bottom End, Yamaha, YFZ450R, YFZ450X, Kit

Part Number: HRI-CBK0179

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Estimated Ship Date: Oct 13, 2025 if ordered today

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Gasket Kit BOTTOM END KIT BOTTOM END KIT

Part Number: HRI-CBK0192

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Estimated Ship Date: Oct 13, 2025 if ordered today

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Rebuild Kit, Complete Bottom End, Yamaha, Kit

Part Number: HRI-CBK0205

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Estimated Ship Date: Oct 13, 2025 if ordered today

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Rebuild Kit, Complete Bottom End, Yamaha, Kit

Part Number: HRI-CBK0223

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Estimated Ship Date: Oct 13, 2025 if ordered today

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STD BORE KIT HI COMP

Part Number: CLW-10001-K01HC

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Estimated Ship Date: Oct 21, 2025 if ordered today

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Cylinder Kit, Forged Piston, Standard Bore, for use on Honda®, 12.50 to 1 Compression Ratio, Kit

Part Number: CLW-10002-K01HC

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Estimated Ship Date: Oct 21, 2025 if ordered today

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STD BORE KIT HI COMP

Part Number: CLW-10005-K01HC

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Estimated Ship Date: Oct 21, 2025 if ordered today

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Big Bore Cylinder Kit, Forged Piston, 96mm Bore, for use on Honda®, Motorcycle, Kit

Part Number: CLW-10006-K01

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Estimated Ship Date: Oct 21, 2025 if ordered today

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STD BORE KIT

Part Number: CLW-10006-K02

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Estimated Ship Date: Oct 21, 2025 if ordered today

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Cylinder Kit, Forged Piston, Standard Bore, for use on Honda®, 10.00 to 1 Compression Ratio, Kit

Part Number: CLW-10009-K01

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Estimated Ship Date: Oct 21, 2025 if ordered today

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BIG BORE KIT

Part Number: CLW-11004-K01

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Estimated Ship Date: Oct 21, 2025 if ordered today

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Cylinder Kit, Forged Piston, Standard Bore, Gaskets, Rings, Yamaha, Motorcycle, Kit

Part Number: CLW-20003-K01

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Estimated Ship Date: Oct 21, 2025 if ordered today

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Top End Engine Kits CYL WORKS STD BORE KIT YAMAHA CYL WORKS STD BORE KIT YAMAHA 700 GRIZZLY/VIKING '14-15

Part Number: CLW-20104-K02

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Estimated Ship Date: Oct 21, 2025 if ordered today

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CYL WORKS BIG BORE KIT YZ450F

Part Number: CLW-21005-K02

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Estimated Ship Date: Oct 21, 2025 if ordered today

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Cylinder Kit, Forged Aluminum, 3.00mm Oversize Bore, Yamaha, Set

Part Number: CLW-21010-K01

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Estimated Ship Date: Oct 21, 2025 if ordered today

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