Engine Rotating Assemblies & Rebuild Kits

Top End Engine Kit, Sidewinder Big Bore, Black Wrinkle Finish, 4 in., Forged Piston, Harley-Davidson®, Kit

Part Number: SSY-910-0651

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Estimated Ship Date: Jul 28, 2025 if ordered today

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QB FULL TOP END SET

Part Number: QDB-56-3912

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Estimated Ship Date: Jul 24, 2025 if ordered today

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QB FULL TOP END SET

Part Number: QDB-56-3914

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Estimated Ship Date: Jul 24, 2025 if ordered today

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QB FULL TOP END SET

Part Number: QDB-56-3949

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Estimated Ship Date: Jul 24, 2025 if ordered today

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QB FULL TOP END SET

Part Number: QDB-56-3956

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Estimated Ship Date: Jul 24, 2025 if ordered today

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QB FULL TOP END SET

Part Number: QDB-56-3959

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Estimated Ship Date: Jul 24, 2025 if ordered today

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QB FULL TOP END SET

Part Number: QDB-56-4293

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Estimated Ship Date: Jul 24, 2025 if ordered today

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MASTER KIT

Part Number: MAH-MGX1800

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Estimated Ship Date: Aug 8, 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: Jul 31, 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: Jul 31, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-30024-BK

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Estimated Ship Date: Jul 31, 2025 if ordered today

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Repair Kit, Top End, 53.940mm Bore, 10.80 to 1 Compression Ratio, Yamaha, Kit

Part Number: NTI-NX-40001K

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Estimated Ship Date: Jul 31, 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: Jul 31, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-40085-BK

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Estimated Ship Date: Jul 31, 2025 if ordered today

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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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Estimated Ship Date: Jul 31, 2025 if ordered today

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Cylinder Head TOP END REPAIR KIT TOP END REPAIR KIT

Part Number: NTI-NA-50011-2K

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Estimated Ship Date: Jul 31, 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: Jul 31, 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: Jul 31, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NA-50025-4K

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Estimated Ship Date: Jul 31, 2025 if ordered today

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Piston, NAMURA PISTON KIT

Part Number: NTI-NA-50081

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Estimated Ship Date: Jul 31, 2025 if ordered today

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Repair Kit, Top End, 47.44mm Bore, 8.40 to 1 Compression Ratio, for use on Honda®, Kit

Part Number: NTI-NX-10081K

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Estimated Ship Date: Jul 31, 2025 if ordered today

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Repair Kit, Top End, 66.350mm Bore, 8.60 to 1 Compression Ratio, Kawasaki, Kit

Part Number: NTI-NX-20025K

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Estimated Ship Date: Jul 31, 2025 if ordered today

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Repair Kit, Top End, 76.950mm Bore, 12.60 to 1 Compression Ratio, Kawasaki, Suzuki, Kit

Part Number: NTI-NX-20030K

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Estimated Ship Date: Jul 31, 2025 if ordered today

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TOP END REPAIR KIT

Part Number: NTI-NX-20080K2

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Estimated Ship Date: Jul 31, 2025 if ordered today

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Repair Kit, Top End, 66.35mm Bore, 8.60 to 1 Compression Ratio, Suzuki, Kit

Part Number: NTI-NX-30024K2

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Estimated Ship Date: Jul 31, 2025 if ordered today

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