Engine Kits & Rotating Assemblies

TOP END REPAIR KIT

Part Number: NTI-NA-20036-6K

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Estimated Ship Date: Apr 6, 2026 if ordered today

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

Part Number: NTI-FX-40045K2

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Estimated Ship Date: Apr 6, 2026 if ordered today

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TOP END KIT FORGED 77.97/+0.01 11:1 HUSQ/KTM

Part Number: NTI-FX-70090-BK

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Estimated Ship Date: Apr 6, 2026 if ordered today

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

Part Number: NTI-FX-40033-BK

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Estimated Ship Date: Apr 6, 2026 if ordered today

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK23133B

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Estimated Ship Date: Apr 6, 2026 if ordered today

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22685C

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TOP END REPAIR KIT

Part Number: NTI-NX-70051K

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22860B

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TOP END REPAIR KIT

Part Number: NTI-NX-40026-CK

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TOP END REPAIR KIT

Part Number: NTI-NA-40007K

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TOP END REPAIR KIT

Part Number: NTI-NA-50024-6K

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Repair Kit, Top End, 76.95mm Bore, 8.20 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NA-20000-4K

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Estimated Ship Date: Apr 6, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-10026-BK1

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TOP END REPAIR KIT

Part Number: NTI-NA-50024K

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TOP END REPAIR KIT

Part Number: NTI-NA-10001-3K

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Repair Kit, Top End, 82.96mm Bore, 9.00 to 1 Compression Ratio, Arctic Cat, Suzuki, Kit

Part Number: NTI-NA-30010-4K

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Estimated Ship Date: Apr 6, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-50070-CK1

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TOP END REPAIR KIT

Part Number: NTI-NA-50070K

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TOP END KIT FORGED 76.95/STD YAM

Part Number: NTI-FX-40050K

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Repair Kit, Top End, 85.470mm Bore, 11.00 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10003-2K

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Estimated Ship Date: Apr 6, 2026 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: Apr 6, 2026 if ordered today

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Repair Kit, Top End, 83.44mm Bore, 6.90 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50002-2K

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

Part Number: NTI-FX-40033K

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Repair Kit, Top End, 91.97mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50004K

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Estimated Ship Date: Apr 6, 2026 if ordered today

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VERTEX PISTON KT HC FORGED

Part Number: VPX-23833A

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Estimated Ship Date: Apr 6, 2026 if ordered today

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