Engine Kits & Rotating Assemblies

Repair Kit, Top End, 66.94mm Bore, High Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40002-4K

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Estimated Ship Date: Apr 8, 2026 if ordered today

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Repair Kit, Top End, 65.920mm Bore, 6.60 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40003K

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Estimated Ship Date: Apr 8, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-40009-CK

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Estimated Ship Date: Apr 8, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-40008-4K

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Estimated Ship Date: Apr 8, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-10000-BK1

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Estimated Ship Date: Apr 8, 2026 if ordered today

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QB FULL TOP END SET

Part Number: QDB-56-3949

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Estimated Ship Date: Apr 3, 2026 if ordered today

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Repair Kit, Top End, 53.95mm Bore, 8.30 to 1 Compression Ratio, Suzuki, Kit

Part Number: NTI-NX-30000-BK

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Estimated Ship Date: Apr 8, 2026 if ordered today

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Repair Kit, Top End, 54.500mm Bore, 9.00 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NX-20001K

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Estimated Ship Date: Apr 7, 2026 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NX-10051-2K

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Estimated Ship Date: Apr 8, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-40005-2K

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Estimated Ship Date: Apr 9, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-40005-4K

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Estimated Ship Date: Apr 9, 2026 if ordered today

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Repair Kit, Top End, 52.500mm Bore, 9.60 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NX-20010K

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Estimated Ship Date: Apr 9, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-70007K

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Estimated Ship Date: Apr 9, 2026 if ordered today

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Piston, TOP END REPAIR KIT

Part Number: NTI-NA-20040-2K

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Estimated Ship Date: Apr 9, 2026 if ordered today

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Repair Kit, Top End, 68.95mm Bore, 9.00 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10025-2K

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Estimated Ship Date: Apr 9, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-30024-BK1

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Estimated Ship Date: Apr 9, 2026 if ordered today

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Vehicle Maintenance Kit, Complete Engine Maintenance, OE 99969-6543, Kawasaki, Kit

Part Number: RRA-7-09735

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Apr 14, 2026 if ordered today

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Vehicle Maintenance Kit, Complete Engine Maintenance, OE 24 789 01-S, Kohler, Kit

Part Number: RRA-7-09740

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Estimated Ship Date: Apr 14, 2026 if ordered today

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Vehicle Maintenance Kit, Complete Engine Maintenance, OE 32 789 02-S, Kohler, Kit

Part Number: RRA-7-09747

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Estimated Ship Date: Apr 14, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-40000-CK1

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Estimated Ship Date: Apr 9, 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: Apr 9, 2026 if ordered today

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Repair Kit, Top End, 47.500mm Bore, 6.60 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40008-2K

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Estimated Ship Date: Apr 9, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-30050K1

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Estimated Ship Date: Apr 9, 2026 if ordered today

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Repair Kit, Top End, 53.940mm Bore, 8.80 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NX-10000K2

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Estimated Ship Date: Apr 9, 2026 if ordered today

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Repair Kit, Top End, 39.460mm Bore, 8.50 to 1 Compression Ratio, KTM, Kit

Part Number: NTI-NX-70001K

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Estimated Ship Date: Apr 9, 2026 if ordered today

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