KB Performance V-Twin Piston and Ring Kits

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: Mar 6, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.518 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB414-020

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Estimated Ship Date: Mar 6, 2026 if ordered today

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

Part Number: UEM-KB414-030

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Estimated Ship Date: Mar 6, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.538 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB414-040

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Estimated Ship Date: Mar 6, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.498 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB414-STD

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Estimated Ship Date: Mar 6, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.880 in. Bore, Indian, 9.80:1 Compression Ratio, Kit

Part Number: UEM-KB412-005

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Estimated Ship Date: Mar 4, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.905 in. Bore, Indian, 9.80:1 Compression Ratio, Kit

Part Number: UEM-KB412-030

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Estimated Ship Date: Mar 4, 2026 if ordered today

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PISTON KIT

Part Number: UEM-KB935C-020

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Estimated Ship Date: Mar 4, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.528 in. Bore, Harley-Davidson®, 8.60;1 Compression Ratio, Kit

Part Number: UEM-KB258-030

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Estimated Ship Date: Mar 5, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.508 in. Bore, Harley-Davidson®, 8.30:1 Compression Ratio, Kit

Part Number: UEM-KB297-010

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Estimated Ship Date: Mar 5, 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: Mar 5, 2026 if ordered today

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Piston and Ring Kit, Forged, 3.900 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB906C-020

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Estimated Ship Date: Mar 5, 2026 if ordered today

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Piston and Ring Kit, Forged, 3.880 in. Bore, Harley-Davidson®, 9.50:1 Compression Ratio, Kit

Part Number: UEM-KB907C-005

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 5, 2026 if ordered today

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Powersports Piston, Forged 4032 Alloy, Coated, 3.915 in. Bore, 1.086 in. Comp. Ht, Dome, -5.4cc, 0.040 in. Oversize, 0.927 in. Pin, Harley®, Set

Part Number: UEM-KB909C-040

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Estimated Ship Date: Mar 5, 2026 if ordered today

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Piston and Ring Kit, Forged, 4.020 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB914C-020

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Estimated Ship Date: Mar 5, 2026 if ordered today

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Piston and Ring Kit, Forged, 3.498 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB924C-STD

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Estimated Ship Date: Mar 5, 2026 if ordered today

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Harley Davidson Forged 4032 Alloy, Shovelhead Hemi Dome -53.6cc 88-98ci 1948-84 ROD -7.440

Part Number: UEM-KB929C-STD

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Estimated Ship Date: Mar 5, 2026 if ordered today

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Powersports Piston, Forged 4032, Coated Skirts, 4.130 in. Bore, 1.086 in. Comp. Ht, Dome, +0.5cc, 0.005 in. Oversize, 0.927 in. Pin, Harley®, Set

Part Number: UEM-KB662LCA005

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Piston Set, KB Forged Piston - Twin Cam 96 Big Bore Dome -4.2cc (110ci) 2007 To Present Rod -7.667 w/Screamin' Eagle head

Part Number: UEM-KB661C005

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Piston Set, KB Forged Coated Piston - Shovelhead Hemi Dome -58cc 80ci FL, FLH, FX 1978-84 Rod-7.440

Part Number: UEM-KB927CSTD

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.000 in. Bore, Harley-Davidson®, 9.10:1 Compression Ratio, Kit

Part Number: UEM-KB408C-STD

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.885 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB409C-010

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Piston and Ring Kit, Forged, 3.905 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB909C-030

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.508 in. Bore, Harley-Davidson®, 8.90:1 Compression Ratio, Kit

Part Number: UEM-KB295-010

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Estimated Ship Date: Feb 16, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.528 in. Bore, Harley-Davidson®, 8.30:1 Compression Ratio, Kit

Part Number: UEM-KB297-030

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Estimated Ship Date: Feb 16, 2026 if ordered today

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