HARLEY-DAVIDSON - Free Shipping on Orders Over $109 at Summit Racing

KB Performance V-Twin Piston and Ring Kits KB904C.010

Piston and Ring Kit, Forged, 3.885 in. Bore, Harley-Davidson®, 9.25:1 Compression Ratio, Kit

Part Number: UEM-KB904C-010

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB904C.030

Piston and Ring Kit, Forged, 3.905 in. Bore, Harley-Davidson®, 9.25:1 Compression Ratio, Kit

Part Number: UEM-KB904C-030

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB904C.040

Piston and Ring Kit, Forged, 3.915 in. Bore, Harley-Davidson®, 9.25:1 Compression Ratio, Kit

Part Number: UEM-KB904C-040

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB905C.020

Piston and Ring Kit, Forged, 3.895 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB905C-020

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB905C.030

Piston and Ring Kit, Forged, 3.905 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB905C-030

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB905C.040

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

Part Number: UEM-KB905C-040

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB906C.010

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

Part Number: UEM-KB906C-010

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB906C.030

Piston and Ring Kit, Forged, 3.910 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB906C-030

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB906C.040

Piston and Ring Kit, Forged, 3.920 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB906C-040

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB907C.020

Piston and Ring Kit, Forged, 3.895 in. Bore, Harley-Davidson®, 9.50:1 Compression Ratio, Kit

Part Number: UEM-KB907C-020

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB660C.020

Piston, V-Twin, Forged Aluminum, 3.895 in. Bore, Harley-Davidson®, Kit

Part Number: UEM-KB660C-020

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB924C.010

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

Part Number: UEM-KB924C-010

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB924C.020

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

Part Number: UEM-KB924C-020

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB925C.005

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

Part Number: UEM-KB925C-005

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB925C.010

Piston and Ring Kit, Forged, 3.508 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB925C-010

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB925C.030

Piston and Ring Kit, Forged, 3.528 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB925C-030

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB925C.040

Piston and Ring Kit, Forged, 3.538 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB925C-040

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB928C.020

Pistons, Aluminum, Shovelhead Engine, 3.625 in. Bore, Harley-Davidson®, Pair

Part Number: UEM-KB928C-020

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB928C.030

Piston Set, KB Forged Coated Piston - Shovelhead Hemi Dome -42.3cc 88-98ci 1948-84 ROD -7.440

Part Number: UEM-KB928C030

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB930C.030

Piston Set, KB Forged Coated Piston - Shovelhead Hemi Dome -58.2cc 88-98ci 1948-84 ROD -7.440

Part Number: UEM-KB930C030

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB348.005

Piston and Ring Kit, Hypereutectic, 3.880 in. Bore, Harley-Davidson®, Kit

Part Number: UEM-KB348-005

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB348.020

Piston and Ring Kit, Hypereutectic, 3.895 in. Bore, Harley-Davidson®, 9.30:1 Compression Ratio, Kit

Part Number: UEM-KB348-020

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB348.030

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

Part Number: UEM-KB348-030

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB348.040

Piston and Ring Kit, Hypereutectic, 3.915 in. Bore, Harley-Davidson®, 9.30:1 Compression Ratio, Kit

Part Number: UEM-KB348-040

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB292.050

Piston and Ring Kit, Hypereutectic, 3.238 in. Bore, Harley-Davidson®, 8.20;1 Compression Ratio, Kit

Part Number: UEM-KB292-050

Not Yet Reviewed

Estimated Ship Date: Mar 16, 2026 if ordered today

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Estimated Ship Date: Mar 16, 2026 if ordered today

HARLEY-DAVIDSON Parts and Accessories