Engine Kits & Rotating Assemblies

Repair Kit, Top End, 84.450mm Bore, 10.00 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40011K

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Estimated Ship Date: Oct 31, 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: Oct 31, 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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Estimated Ship Date: Oct 31, 2025 if ordered today

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Piston, TOP END REPAIR KIT

Part Number: NTI-NA-40013K

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Estimated Ship Date: Oct 31, 2025 if ordered today

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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: Oct 31, 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: Oct 31, 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: Oct 31, 2025 if ordered today

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

Part Number: HRI-CBK0045

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Estimated Ship Date: Oct 22, 2025 if ordered today

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Repair Kit, Top End, 94.960mm Bore, 11.40 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40009-BK

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Estimated Ship Date: Oct 10, 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: Oct 30, 2025 if ordered today

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Piston, TOP END REPAIR KIT

Part Number: NTI-NA-50091K

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Estimated Ship Date: Oct 30, 2025 if ordered today

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22803B

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Estimated Ship Date: Oct 28, 2025 if ordered today

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QB FULL TOP END SET

Part Number: QDB-56-4293

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Estimated Ship Date: Oct 24, 2025 if ordered today

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Repair Kit, Top End, 84.44mm Bore, 6.90 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50002-6K

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Estimated Ship Date: Oct 28, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-40026-CKA

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Estimated Ship Date: Oct 29, 2025 if ordered today

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TOP END GASKET KIT, TOP END REPAIR KIT (FORGED PISTON)

Part Number: NTI-FX-10035K

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Estimated Ship Date: Oct 29, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-40007-4K

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Estimated Ship Date: Oct 29, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-40010-6K

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Estimated Ship Date: Oct 29, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-10043-4K

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Estimated Ship Date: Oct 29, 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: Oct 29, 2025 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-30014-CK

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Estimated Ship Date: Oct 29, 2025 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-30015K

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Estimated Ship Date: Oct 29, 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: Oct 29, 2025 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50019K

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Estimated Ship Date: Oct 29, 2025 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50026-2K

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Estimated Ship Date: Oct 29, 2025 if ordered today

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