KB Performance V-Twin Piston and Ring Kits

Piston and Ring Kit, Hypereutectic, 3.498 in. Bore, Cast Iron Rings, Harley-Davidson®, Kit

Part Number: UEM-KB305-STD

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Piston and Ring Kit, Hypereutectic, 3.507 in. Bore, Harley-Davidson®, 7.80;1 Compression Ratio, Kit

Part Number: UEM-KB263-080

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Piston and Ring Kit, Hypereutectic, 3.467 in. Bore, Harley-Davidson®, 7.80;1 Compression Ratio, Kit

Part Number: UEM-KB263-030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 20, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.503 in. Bore, Harley-Davidson®, 8.60;1 Compression Ratio, Kit

Part Number: UEM-KB258-005

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.498 in. Bore, Harley-Davidson®, 8.90:1 Compression Ratio, Kit

Part Number: UEM-KB295-STD

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 20, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.503 in. Bore, Harley-Davidson®, 9.10;1 Compression Ratio, Kit

Part Number: UEM-KB264-005

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Estimated Ship Date: Apr 21, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.885 in. Bore, Indian, 9.80:1 Compression Ratio, Kit

Part Number: UEM-KB412-010

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Piston and Ring Kit, Forged, 3.503 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB924C-005

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Estimated Ship Date: Monday 3/16/2026 if shipped by air

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Piston and Ring Kit, Hypereutectic, 3.518 in. Bore, Harley-Davidson®, 8.60;1 Compression Ratio, Kit

Part Number: UEM-KB258-020

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.518 in. Bore, Harley-Davidson®, 8.90:1 Compression Ratio, Kit

Part Number: UEM-KB295-020

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.915 in. Bore, Indian, 9.80:1 Compression Ratio, Kit

Part Number: UEM-KB412-040

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Estimated Ship Date: Apr 21, 2026 if ordered today

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Piston and Ring Kit, Forged, 3.528 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB924C-030

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Estimated Ship Date: Apr 21, 2026 if ordered today

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Piston and Ring Kit, Forged, 3.503 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB925C-005

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Estimated Ship Date: Apr 21, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.905 in. Bore, Harley-Davidson®, 9.30:1 Compression Ratio, Kit

Part Number: UEM-KB348-030

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Estimated Ship Date: Apr 21, 2026 if ordered today

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Piston and Ring Kit, Forged, 4.000 in. Bore, Harley-Davidson®, 9.50:1 Compression Ratio, Kit

Part Number: UEM-KB913C-STD

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Estimated Ship Date: Apr 21, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.508 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB414-010

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Estimated Ship Date: Apr 21, 2026 if ordered today

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Piston and Ring Kit, Forged, 3.503 in. Bore, Harley-Davidson®, 9.50:1 Compression Ratio, Kit

Part Number: UEM-KB923C-005

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Estimated Ship Date: Apr 21, 2026 if ordered today

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Piston and Ring Kit, Forged, 3.915 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB905C-040

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Estimated Ship Date: Apr 21, 2026 if ordered today

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Piston and Ring Kit, Forged, 4.000 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB914C-STD

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Estimated Ship Date: Apr 21, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.528 in. Bore, Harley-Davidson®, 8.90:1 Compression Ratio, Kit

Part Number: UEM-KB295-030

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Apr 21, 2026 if ordered today

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Piston and Ring Kit, Forged, Dome, 3.885 in. Bore, Harley-Davidson®, V2, Kit

Part Number: UEM-KB906C-010

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Estimated Ship Date: Apr 21, 2026 if ordered today

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KB Pistons, Forged, V-Twin, Pair

Part Number: UEM-KB662C-030

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Estimated Ship Date: Apr 21, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.915 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB409C-040

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Estimated Ship Date: Apr 21, 2026 if ordered today

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Piston and Ring Kit, Forged, 3.518 in. Bore, Harley-Davidson®, 9.00:1 Compression Ratio, Kit

Part Number: UEM-KB923C-020

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Estimated Ship Date: Apr 21, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.198 in. Bore, Harley-Davidson®, 8.20;1 Compression Ratio, Kit

Part Number: UEM-KB292-010

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Estimated Ship Date: Apr 21, 2026 if ordered today

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