Engine Kits & Rotating Assemblies

BORE KIT - 88CC

Part Number: BRM-411-HXR-7001

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Estimated Ship Date: Aug 14, 2025 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: Aug 18, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-20017K

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Estimated Ship Date: Aug 14, 2025 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: Aug 14, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-40026-CKA

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Estimated Ship Date: Aug 14, 2025 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-30014K

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Estimated Ship Date: Aug 14, 2025 if ordered today

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Repair Kit, Top End, 87.45mm Bore, 10.20 to 1 Compression Ratio, Arctic Cat, Suzuki, Kit

Part Number: NTI-NA-30050K

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Estimated Ship Date: Aug 14, 2025 if ordered today

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TOP END KIT HYPERDRYVE 94.96/+0.01 11.4:1 YAM

Part Number: NTI-NA-40009-BHK

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Estimated Ship Date: Aug 14, 2025 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: Aug 14, 2025 if ordered today

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TOP END KIT HYPERDRYVE 103.97/+1.00 YAM

Part Number: NTI-NA-40025-4K

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Estimated Ship Date: Aug 14, 2025 if ordered today

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TOP END KIT HYPERDRYVE 102.97/STD YAM

Part Number: NTI-NA-40025K

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Estimated Ship Date: Aug 14, 2025 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50012-2K

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Estimated Ship Date: Aug 14, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-50024-6K

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Estimated Ship Date: Aug 14, 2025 if ordered today

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Piston, TOP END REPAIR KIT

Part Number: NTI-NA-50081K

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Estimated Ship Date: Aug 14, 2025 if ordered today

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Repair Kit, Top End, 66.340mm Bore, 8.70 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NX-10025K

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Estimated Ship Date: Aug 14, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-10043-4K

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Estimated Ship Date: Aug 14, 2025 if ordered today

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Repair Kit, Top End, 84.96mm Bore, 9.30 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NA-20075K

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Estimated Ship Date: Aug 14, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-10001-3K

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Estimated Ship Date: Aug 14, 2025 if ordered today

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Repair Kit, Top End, 86.470mm Bore, 11.00 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10003-6K

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Estimated Ship Date: Aug 14, 2025 if ordered today

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Repair Kit, Top End, 92.96mm Bore, 8.50 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10008-4K1

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Repair Kit, Top End, 68.95mm Bore, 9.50 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NA-10027-2K

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Estimated Ship Date: Aug 14, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-10027-4K

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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-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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Estimated Ship Date: Aug 14, 2025 if ordered today

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VERTEX TOP END PISTON KIT

Part Number: VPX-VTK22803B

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Estimated Ship Date: Aug 14, 2025 if ordered today

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