KB Performance V-Twin Piston and Ring Kits

Piston and Ring Kit, Hypereutectic, 3.010 in. Bore, Harley-Davidson®, 9.10:1 Compression Ratio, Kit

Part Number: UEM-KB408C-010

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Estimated Ship Date: Feb 25, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.503 in. Bore, Harley-Davidson®, 8.80:1 Compression Ratio, Kit

Part Number: UEM-KB410-005

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Estimated Ship Date: Feb 25, 2026 if ordered today

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Piston and Ring Kit, Forged, 3.880 in. Bore, Harley-Davidson®, 9.25:1 Compression Ratio, Kit

Part Number: UEM-KB904C-005

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Estimated Ship Date: Mar 4, 2026 if ordered today

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