Engine Kits & Rotating Assemblies

Repair Kit, Top End, 68.70mm Bore, 9.50 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10027-1K

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Estimated Ship Date: Aug 15, 2025 if ordered today

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Repair Kit, Top End, 68.45mm Bore, 9.50 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10027K

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Repair Kit, Top End, 67.47mm Bore, 8.30 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NA-20036-2K

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TOP END REPAIR KIT

Part Number: NTI-NA-20036-4K

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TOP END REPAIR KIT

Part Number: NTI-NA-40010-6K

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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: Aug 15, 2025 if ordered today

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Repair Kit, Top End, 90.460mm Bore, 8.50 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10000-2K

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TOP END REPAIR KIT

Part Number: NTI-NA-20036-6K

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TOP END REPAIR KIT

Part Number: NTI-NA-20036K

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Repair Kit, Top End, 91.96mm Bore, 8.50 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10008K1

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TOP END REPAIR KIT

Part Number: NTI-NA-10042-4K

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TOP END REPAIR KIT

Part Number: NTI-NA-10043-3K

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Repair Kit, Top End, 100.470mm Bore, 9.20 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40004-2K

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Repair Kit, Top End, 99.970mm Bore, 9.20 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40004K

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TOP END REPAIR KIT

Part Number: NTI-NA-50025-4K

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Repair Kit, Top End, 81.45mm Bore, 6.00 to 1 Compression Ratio, Polaris, Kit

Part Number: NTI-NA-50001-6K

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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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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22481CD

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Estimated Ship Date: Aug 14, 2025 if ordered today

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22685C

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22803B

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TOP END KIT FR WITH CAM CHAIN

Part Number: VPX-VTKTC22983A

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TOP END KIT FR WITH CAM CHAIN

Part Number: VPX-VTKTC23127B

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TOP END KIT FR WITH CAM CHAIN

Part Number: VPX-VTKTC23510B

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTKTC24258

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22809B

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