1999 Engine Kits & Rotating Assemblies

Repair Kit, Top End, 53.950mm Bore, 8.80 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NX-10000-BK

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Estimated Ship Date: Mar 2, 2026 if ordered today

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Repair Kit, Top End, 53.940mm Bore, 8.90 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40000K

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Estimated Ship Date: Mar 2, 2026 if ordered today

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BOTTOM END KIT Kawasaki SUZ

Part Number: HRI-CBK0049

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Estimated Ship Date: Feb 23, 2026 if ordered today

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BOTTOM END KIT Yamaha

Part Number: HRI-CBK0075

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Estimated Ship Date: Feb 23, 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: Mar 3, 2026 if ordered today

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Top End Engine Kits CYL WORKS BIG BORE POWER VALVE CYL WORKS BIG BORE POWER VALVE INCL SIDE VALVES YZ250 '99-1

Part Number: CLW-CW-PV-K02

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Estimated Ship Date: Mar 3, 2026 if ordered today

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BOTTOM END KIT Yamaha

Part Number: HRI-CBK0078

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Rebuild Kit, Complete Bottom End, for use on Honda®, Kit

Part Number: HRI-CBK0080

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Estimated Ship Date: Feb 23, 2026 if ordered today

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Rebuild Kit, Complete Bottom End, Yamaha, YFM350 Raptor, YFM350X Warrior, Kit

Part Number: HRI-CBK0082

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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-70047K

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Estimated Ship Date: Mar 3, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-90000K

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Estimated Ship Date: Mar 3, 2026 if ordered today

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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: Mar 3, 2026 if ordered today

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Repair Kit, Top End, 65.94mm Bore, High Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40002K

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Estimated Ship Date: Mar 3, 2026 if ordered today

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Repair Kit, Top End, 76.45mm Bore, 8.20 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NA-20000-2K

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Estimated Ship Date: Mar 3, 2026 if ordered today

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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: Mar 3, 2026 if ordered today

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Repair Kit, Top End, 75.95mm Bore, 8.20 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NA-20000K

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Estimated Ship Date: Mar 3, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-20001-4K

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Estimated Ship Date: Mar 3, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-30080-4K

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Estimated Ship Date: Mar 3, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-40002-2K

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Estimated Ship Date: Mar 3, 2026 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-11001-4K

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Estimated Ship Date: Mar 3, 2026 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-11001K

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Estimated Ship Date: Mar 3, 2026 if ordered today

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Repair Kit, Top End, 66.920mm Bore, 6.60 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40003-4K

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Estimated Ship Date: Mar 3, 2026 if ordered today

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Repair Kit, Top End, 67.420mm Bore, 6.60 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NA-40003-6K

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Estimated Ship Date: Mar 3, 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: Mar 3, 2026 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-20010-CK

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Estimated Ship Date: Mar 3, 2026 if ordered today

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