Engine Kits & Rotating Assemblies

Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50012-BK

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Estimated Ship Date: Feb 23, 2026 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: Feb 23, 2026 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: Feb 23, 2026 if ordered today

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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: Feb 23, 2026 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: Feb 23, 2026 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50012-4K

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Estimated Ship Date: Feb 23, 2026 if ordered today

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22685C

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Estimated Ship Date: Feb 23, 2026 if ordered today

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22685C-1

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22809B

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22926B-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 23, 2026 if ordered today

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK23133B

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Estimated Ship Date: Feb 23, 2026 if ordered today

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK23430CD

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Estimated Ship Date: Feb 23, 2026 if ordered today

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK23630A-1

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22584B-2

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Estimated Ship Date: Feb 23, 2026 if ordered today

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22803B

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Estimated Ship Date: Feb 23, 2026 if ordered today

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VERTEX PISTON KIT

Part Number: VPX-23965A

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Estimated Ship Date: Feb 23, 2026 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-BKA

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Estimated Ship Date: Feb 23, 2026 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: Feb 23, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-40026-BKA

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Estimated Ship Date: Feb 23, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-40026-CKA

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Repair Kit, Top End, 67.94mm Bore, 10.60 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40026KA

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Estimated Ship Date: Feb 23, 2026 if ordered today

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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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Estimated Ship Date: Feb 23, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-20030-BK

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Repair Kit, Top End, 76.950mm Bore, 12.60 to 1 Compression Ratio, Kawasaki, Suzuki, Kit

Part Number: NTI-NX-20030K

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NX-20031-BK1

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Estimated Ship Date: Feb 23, 2026 if ordered today

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