Engine Kits & Rotating Assemblies

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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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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Piston, NAMURA PISTON KIT

Part Number: NTI-NA-50081

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Estimated Ship Date: Dec 2, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-10000-2K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-10000-4K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-10000-6K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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Repair Kit, Top End, 53.950mm Bore, 8.80 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NX-10000-BK

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Estimated Ship Date: Dec 2, 2025 if ordered today

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22813CD

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Estimated Ship Date: Dec 2, 2025 if ordered today

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Repair Kit, Top End, 46.95mm Bore, Yamaha, Kit

Part Number: NTI-NX-40080K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-40085-CK

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Estimated Ship Date: Dec 2, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-70000-BK

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Estimated Ship Date: Dec 2, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-70000K

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Estimated Ship Date: Dec 2, 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: Dec 2, 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: Dec 2, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-70002-6CK

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Estimated Ship Date: Dec 2, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-70005-CK

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Estimated Ship Date: Dec 2, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-70007-BK

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Estimated Ship Date: Dec 2, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-70007K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-70020K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-70047K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-70050-BK

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Estimated Ship Date: Dec 2, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-70051K

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Estimated Ship Date: Dec 2, 2025 if ordered today

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