1999 Engine Kits & Rotating Assemblies

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, 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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Repair Kit, Top End, 46.95mm Bore, Yamaha, Kit

Part Number: NTI-NX-40080K

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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-40005-2K

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Estimated Ship Date: Mar 3, 2026 if ordered today

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Repair Kit, Top End, 53.950mm Bore, 8.90 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40000-BK

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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-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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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

1.0 out of 5 stars ( 1 )

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 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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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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Complete Engine Rebuild Kit, Stock Bore, Stock Stroke, Yamaha, Kit

Part Number: VPX-WR101-093

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 3, 2026 if ordered today

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