Engines & Engine Parts at Summit Racing

KB Performance V-Twin Piston and Ring Kits KB910C.010

Piston and Ring Kit, Forged, 4.135 in. Bore, Harley-Davidson®, 9.50:1 Compression Ratio, Kit

Part Number: UEM-KB910C-010

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB910C.030

Piston and Ring Kit, Forged, 4.155 in. Bore, Harley-Davidson®, 9.50:1 Compression Ratio, Kit

Part Number: UEM-KB910C-030

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

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

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

Part Number: UEM-KB930CSTD

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB661LCA.020

Powersports Piston, Forged 4032, 2-Line Coated, 4.020 in. Bore, 1.086 in. Comp. Ht, Dome, -5.1cc, 0.020 in. Oversize, 0.927 in. Pin, Harley®, Set

Part Number: UEM-KB661LCA020

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB662C.020

KB Pistons, Forged, V-Twin, Pair

Part Number: UEM-KB662C-020

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Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB910C.020

Piston and Ring Kit, Forged, 4.145 in. Bore, Harley-Davidson®, 9.50:1 Compression Ratio, Kit

Part Number: UEM-KB910C-020

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 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: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB305.040

Piston and Ring Kit, Hypereutectic, 3.538 in. Bore, Cast Iron Rings, Harley-Davidson®, Kit

Part Number: UEM-KB305-040

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB912C.020

Piston and Ring Kit, Forged, 4.145 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB912C-020

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB912C.030

Piston and Ring Kit, Forged, 4.155 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB912C-030

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB912C.STD

Piston and Ring Kit, Forged, 4.125 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB912C-STD

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB913C.STD

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

Part Number: UEM-KB913C-STD

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB914C.030

Piston and Ring Kit, Forged, 4.030 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB914C-030

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB916C.020

Piston and Ring Kit, Forged, 4.145 in. Bore, Harley-Davidson®, 9.50:1 Compression Ratio, Kit

Part Number: UEM-KB916C-020

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB917C.005

Piston and Ring Kit, Forged, 4.130 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB917C-005

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB917C.010

Piston and Ring Kit, Forged, 4.135 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB917C-010

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB917C.020

Piston and Ring Kit, Forged, 4.145 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB917C-020

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB917C.030

Piston and Ring Kit, Forged, 4.155 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB917C-030

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 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: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB907C.030

Piston and Ring Kit, Forged, 3.905 in. Bore, Harley-Davidson®, 9.50:1 Compression Ratio, Kit

Part Number: UEM-KB907C-030

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 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: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB409C.040

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

Part Number: UEM-KB409C-040

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB410.040

Piston and Ring Kit, Hypereutectic, 3.538 in. Bore, Harley-Davidson®, 8.80:1 Compression Ratio, Kit

Part Number: UEM-KB410-040

Not Yet Reviewed

Estimated Ship Date: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 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: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 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: Apr 1, 2026 if ordered today

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Estimated Ship Date: Apr 1, 2026 if ordered today