Engine Rotating Assemblies & Rebuild Kits

Repair Kit, Top End, 67.420mm Bore, 6.60 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40003-6K

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Estimated Ship Date: Nov 24, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-40007-4K

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TOP END REPAIR KIT

Part Number: NTI-NA-40007K

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Repair Kit, Top End, 84.420mm Bore, 9.10 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40008K

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Estimated Ship Date: Nov 24, 2025 if ordered today

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TOP END KIT HYPERDRYVE 94.96/+0.01 11.4:1 YAM

Part Number: NTI-NA-40009-BHK

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Repair Kit, Top End, 84.950mm Bore, 10.00 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40011-2K

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Repair Kit, Top End, 101.980mm Bore, 9.40 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40012-BK

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Repair Kit, Top End, 101.970mm Bore, 9.40 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40012K

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-40015-6K

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TOP END KIT HYPERDRYVE 103.97/+1.00 YAM

Part Number: NTI-NA-40025-4K

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Piston, TOP END REPAIR KIT

Part Number: NTI-NA-40080-2K

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Piston, TOP END REPAIR KIT

Part Number: NTI-NA-40080K

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Repair Kit, Top End, 80.95mm Bore, 6.00 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50001-4K

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-20003-4K

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Cylinder Head NAMURA TOP END REPAIR KIT NAMURA TOP END REPAIR KIT

Part Number: NTI-NA-20005-4K1

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TOP END REPAIR KIT

Part Number: NTI-NA-20036-4K

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TOP END REPAIR KIT

Part Number: NTI-NA-20036K

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Piston, TOP END REPAIR KIT

Part Number: NTI-NA-20040-2K

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Piston, TOP END REPAIR KIT

Part Number: NTI-NA-20040-4K

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Piston, TOP END REPAIR KIT

Part Number: NTI-NA-20040-6K

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Repair Kit, Top End, 79.96mm Bore, 9.90 to 1 Compression Ratio, Arctic Cat, Kawasaki, Kit

Part Number: NTI-NA-20065K

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Estimated Ship Date: Nov 24, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-20070K

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Repair Kit, Top End, 84.96mm Bore, 9.30 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NA-20075K

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Estimated Ship Date: Nov 24, 2025 if ordered today

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Repair Kit, Top End, 89.97mm Bore, 11.30 to 1 Compression Ratio, Arctic Cat, Kawasaki, Suzuki, Kit

Part Number: NTI-NA-30002-BK

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Estimated Ship Date: Nov 24, 2025 if ordered today

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TOP END KIT 66.97/+1.00 11:1 SUZ

Part Number: NTI-NA-30006-4K

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Estimated Ship Date: Nov 24, 2025 if ordered today

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