Engine Kits & Rotating Assemblies

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

Part Number: NTI-NA-50003K

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Estimated Ship Date: Oct 24, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-50025K

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Estimated Ship Date: Oct 24, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-40019-4K

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Estimated Ship Date: Oct 24, 2025 if ordered today

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Repair Kit, Top End, 66.350mm Bore, 10.90 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40025K

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Estimated Ship Date: Oct 24, 2025 if ordered today

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Repair Kit, Top End, 53.950mm Bore, 8.90 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40000-BK

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Estimated Ship Date: Oct 23, 2025 if ordered today

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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: Oct 23, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-40005-2K

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Estimated Ship Date: Oct 23, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-40005-4K

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

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TOP END REPAIR KIT

Part Number: NTI-NX-70001-BK

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Estimated Ship Date: Oct 23, 2025 if ordered today

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Repair Kit, Top End, 39.460mm Bore, 8.50 to 1 Compression Ratio, KTM, Kit

Part Number: NTI-NX-70001K

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Estimated Ship Date: Oct 23, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-70004-BK

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Estimated Ship Date: Oct 23, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-30080-2K

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Estimated Ship Date: Oct 23, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-30080-CK

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Estimated Ship Date: Oct 23, 2025 if ordered today

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Repair Kit, Top End, 66.360mm Bore, 10.90 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40025-CK

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Estimated Ship Date: Oct 23, 2025 if ordered today

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Repair Kit, Top End, 47.44mm Bore, 8.20 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40085K

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Estimated Ship Date: Oct 23, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-70005K

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Estimated Ship Date: Oct 23, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-70047K

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Estimated Ship Date: Oct 23, 2025 if ordered today

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Repair Kit, Top End, 85.450mm Bore, 10.00 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40011-4K

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Estimated Ship Date: Oct 23, 2025 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-40015-6K

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Estimated Ship Date: Oct 23, 2025 if ordered today

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Repair Kit, Top End, 78.96mm Bore, 8.80 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10007-2K

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Estimated Ship Date: Oct 23, 2025 if ordered today

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Repair Kit, Top End, 79.21mm Bore, 8.80 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10007-3K

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Estimated Ship Date: Oct 23, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-20010-CK

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

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TOP END REPAIR KIT

Part Number: NTI-NX-20085-CK

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Estimated Ship Date: Oct 23, 2025 if ordered today

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