Engine Kits & Rotating Assemblies

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-10014-2K

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-30015-CK

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Estimated Ship Date: Apr 13, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-20030-BK

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50012-BK

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Repair Kit, Top End, 79.960mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50070K1

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TOP END REPAIR KIT

Part Number: NTI-NA-50001K

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NX-20031-BK1

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TOP END KIT FORGED 77.96/STD 11:1 HUSQ/KTM

Part Number: NTI-FX-70090K

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Repair Kit, Top End, 66.370mm Bore, 8.60 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NX-20025-CK

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-10046K

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Repair Kit, Top End, 79.950mm Bore, 10.20 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50080K

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TOP END GASKET KIT, TOP END REPAIR KIT

Part Number: NTI-NX-70029-BK3

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Repair Kit, Top End, 86.48mm Bore, 9.80 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10042K

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Repair Kit, Top End, 66.340mm Bore, 8.50 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NX-10027K

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-30015-BK

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VERTEX PISTON KIT

Part Number: VPX-23965A

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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-VTK22481CD

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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-1

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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-VTK22809B

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Estimated Ship Date: Apr 6, 2026 if ordered today

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Top End Engine Kits CYL WORKS STD BORE POWER VALVE CYL WORKS STD BORE POWER VALVE YZ250 '99-15

Part Number: CLW-CW-PV-K01

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Estimated Ship Date: Apr 13, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-10001-1K

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Repair Kit, Top End, 84.96mm Bore, 9.30 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NA-20075K

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Repair Kit, Top End, 92.96mm Bore, 8.50 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10008-4K1

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Estimated Ship Date: Apr 13, 2026 if ordered today

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80 SHOVELHEAD FRONT CYLINDER

Part Number: HDD-34-005

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Estimated Ship Date: Apr 10, 2026 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-10012-6K

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Estimated Ship Date: Apr 13, 2026 if ordered today

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