Engine Rotating Assemblies & Rebuild Kits

Repair Kit, Top End, 53.940mm Bore, 8.90 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40000K1

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Estimated Ship Date: Dec 2, 2025 if ordered today

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Repair Kit, Top End, 66.370mm Bore, 10.90 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40025-CKA

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Estimated Ship Date: Dec 2, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-20065-2K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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BOTTOM END KIT Polaris

Part Number: HRI-HR00107

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Gasket Kit BOTTOM END KIT BOTTOM END KIT

Part Number: HRI-CBK0014

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Estimated Ship Date: Nov 24, 2025 if ordered today

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

Part Number: HRI-CBK0017

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Estimated Ship Date: Nov 24, 2025 if ordered today

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COMPLETE BOTTOM END KIT

Part Number: HRI-CBK0097

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Rebuild Kit, Complete Bottom End, Yamaha, YZ250, Kit

Part Number: HRI-CBK0135

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Estimated Ship Date: Nov 24, 2025 if ordered today

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TOP END KIT HYPERDRYVE 103.97/+1.00 YAM

Part Number: NTI-NA-40025-4K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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TOP END KIT HYPERDRYVE 102.97/STD YAM

Part Number: NTI-NA-40025K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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Piston, TOP END REPAIR KIT

Part Number: NTI-NA-40080-2K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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Piston, TOP END REPAIR KIT

Part Number: NTI-NA-40080K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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Repair Kit, Top End, 83.44mm Bore, 6.90 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50002-2K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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Repair Kit, Top End, 83.94mm Bore, 6.90 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50002-4K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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Repair Kit, Top End, 82.94mm Bore, 6.90 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50002K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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Repair Kit, Top End, 74.97mm Bore, 8.60 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50003-2K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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Repair Kit, Top End, 75.97mm Bore, 8.60 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50003-6K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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Repair Kit, Top End, 92.47mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50004-2K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50011K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50012-2K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50015K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50019-4K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-50025-2K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-50025K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50026K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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