Engine Kits & Rotating Assemblies

Repair Kit, Top End, 66.920mm Bore, 6.60 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40003-4K

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Estimated Ship Date: Sep 23, 2025 if ordered today

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Repair Kit, Top End, 65.920mm Bore, 6.60 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40003K

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Estimated Ship Date: Sep 23, 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: Sep 23, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-50024-6K

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Estimated Ship Date: Sep 23, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-10000-4K

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Estimated Ship Date: Sep 23, 2025 if ordered today

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QB FULL TOP END SET

Part Number: QDB-56-3949

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Estimated Ship Date: Sep 18, 2025 if ordered today

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QB FULL TOP END SET

Part Number: QDB-56-3960

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Estimated Ship Date: Sep 18, 2025 if ordered today

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QB FULL TOP END SET

Part Number: QDB-56-3963

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Estimated Ship Date: Sep 18, 2025 if ordered today

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Repair Kit, Top End, 65.94mm Bore, High Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40002K

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Repair Kit, Top End, 85.970mm Bore, 11.00 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10003-4K

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Repair Kit, Top End, 74.45mm Bore, 8.90 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10005-2K

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Repair Kit, Top End, 81.45mm Bore, 6.00 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50001-6K

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Repair Kit, Top End, 46.940mm Bore, 8.40 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NX-10080K1

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Repair Kit, Top End, 72.96mm Bore, 6.00 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50000-4K

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Repair Kit, Top End, 52.500mm Bore, 9.60 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NX-20010K

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Estimated Ship Date: Sep 25, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-50025-4K

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Repair Kit, Top End, 66.350mm Bore, 8.60 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NX-20025K

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Repair Kit, Top End, 42.950mm Bore, 8.40 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NX-20060K

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Repair Kit, Top End, 66.35mm Bore, 8.60 to 1 Compression Ratio, Suzuki, Kit

Part Number: NTI-NX-30024K1

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Piston, TOP END REPAIR KIT

Part Number: NTI-NA-20040K

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Piston, TOP END REPAIR KIT

Part Number: NTI-NA-20040-4K

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Piston, TOP END REPAIR KIT

Part Number: NTI-NA-20040-6K

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Estimated Ship Date: Sep 25, 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: Sep 25, 2025 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-11001-2K

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Estimated Ship Date: Sep 25, 2025 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-11001-4K

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Estimated Ship Date: Sep 25, 2025 if ordered today

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