Engine Rotating Assemblies & Rebuild Kits

Repair Kit, Top End, 86.48mm Bore, 9.80 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10042K

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Estimated Ship Date: Jul 30, 2025 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-20003K

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Estimated Ship Date: Jul 30, 2025 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-30014-CK

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Estimated Ship Date: Jul 30, 2025 if ordered today

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Repair Kit, Top End, 73.46mm Bore, 6.00 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50000-6K

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Estimated Ship Date: Jul 30, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-50001K

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50012K

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50019-4K

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TOP END REPAIR KIT

Part Number: NTI-NA-50070K

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Piston, TOP END REPAIR KIT

Part Number: NTI-NA-50080K1

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BOTTOM END KIT Polaris

Part Number: HRI-HR00122

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Estimated Ship Date: Jul 21, 2025 if ordered today

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BOTTOM END KIT Polaris

Part Number: HRI-HR00123

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Estimated Ship Date: Jul 21, 2025 if ordered today

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BOTTOM END KIT Polaris

Part Number: HRI-HR00109

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Estimated Ship Date: Jul 21, 2025 if ordered today

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BOTTOM END KIT Polaris

Part Number: HRI-HR00111

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Estimated Ship Date: Jul 21, 2025 if ordered today

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BOTTOM END KIT Yamaha

Part Number: HRI-CBK0079

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Estimated Ship Date: Jul 21, 2025 if ordered today

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

Part Number: HRI-CBK0080

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Estimated Ship Date: Jul 21, 2025 if ordered today

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Rebuild Kit, Complete Bottom End, for use on Honda®, CRF450R, Kit

Part Number: HRI-CBK0086

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Estimated Ship Date: Jul 21, 2025 if ordered today

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Rebuild Kit, Complete Bottom End, Yamaha, YZ125, Kit

Part Number: HRI-CBK0090

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Estimated Ship Date: Jul 21, 2025 if ordered today

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Gasket Kit BOTTOM END KIT BOTTOM END KIT

Part Number: HRI-CBK0092

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Estimated Ship Date: Jul 21, 2025 if ordered today

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

Part Number: HRI-CBK0105

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Estimated Ship Date: Jul 21, 2025 if ordered today

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Rebuild Kit, Complete Bottom End, Yamaha, YFZ450, Kit

Part Number: HRI-CBK0109

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Estimated Ship Date: Jul 21, 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: Jul 21, 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: Jul 21, 2025 if ordered today

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Rebuild Kit, Complete Bottom End, for use on Honda®, CRF450R, Kit

Part Number: HRI-CBK0124

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Estimated Ship Date: Jul 21, 2025 if ordered today

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Rebuild Kit, Complete Bottom End, Yamaha, YFZ450, Kit

Part Number: HRI-CBK0146

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Estimated Ship Date: Jul 21, 2025 if ordered today

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Rebuild Kit, Complete Bottom End, Suzuki, Kit

Part Number: HRI-CBK0165

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Estimated Ship Date: Jul 21, 2025 if ordered today

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