KB Performance V-Twin Piston and Ring Kits

4.79 out of 5 stars 19 Customer Reviews

KB Performance V-Twin piston and ring kits bring all of the knowledge and experience of a legendary engine builder to the world of high performance motorcycles. These pistons use the latest manufacturing techniques and standards to ensure quality and maximum available performance. The kits are offered in hypereutectic 390 alloy and forged 4032 low-expansion alloy. KB Performance V-Twin piston and ring kits are available for Harley-Davidson® and Indian motorcycles in a variety of engine sizes and compression ratios.

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KB Performance V-Twin Piston and Ring Kits KB714LCA.STD

Powersports Piston, Forged 4032 Alloy, Line2Line Coating, 3.937 in. Bore, 1.086 in. Comp. Ht, Dome, +1.6cc, Standard Size, 0.927 in. Pin, Harley®, Set

Part Number: UEM-KB714LCA-STD

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KB Performance V-Twin Piston and Ring Kits KB927C.020

Piston and Ring Kit, Forged, Coated, Dome, 3.518 in. Bore, Offset Pin, Harley-Davidson®, V-Twin, Kit

Part Number: UEM-KB927C-020

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB915C.STD

Piston and Ring Kit, Forged, 4.000 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB915C-STD

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Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB305.010

Piston and Ring Kit, Hypereutectic, 3.508 in. Bore, Cast Iron Rings, Harley-Davidson®, Kit

Part Number: UEM-KB305-010

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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KB Performance V-Twin Piston and Ring Kits KB906C.005

Piston and Ring Kit, Forged, 3.880 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB906C-005

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB272.STD

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

Part Number: UEM-KB272-STD

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB348.010

Piston and Ring Kit, Hypereutectic, 3.885 in. Bore, Harley-Davidson®, 9.30:1 Compression Ratio, Kit

Part Number: UEM-KB348-010

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

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

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: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB930C.010

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

Part Number: UEM-KB930C010

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB263.STD

Piston and Ring Kit, Hypereutectic, Dome, 3.487 in. Bore, Harley-Davidson®, Kit

Part Number: UEM-KB263-STD

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB661LCA.065

Powersports Piston, Forged 4032, 2-Line Coated, 4.065 in. Bore, 1.086 in. Comp. Ht, Dome, -5.1cc, 0.065 in. Oversize, 0.927 in. Pin, Harley®, Set

Part Number: UEM-KB661LCA-065

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB263.010

Piston and Ring Kit, Hypereutectic, 3.447 in. Bore, Harley-Davidson®, 7.80;1 Compression Ratio, Kit

Part Number: UEM-KB263-010

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB409C.005

Piston and Ring Kit, Hypereutectic, 3.880 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB409C-005

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB305.020

Piston and Ring Kit, Hypereutectic, 3.518 in. Bore, Cast Iron Rings, Harley-Davidson®, Kit

Part Number: UEM-KB305-020

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB305.005

Piston and Ring Kit, Hypereutectic, 3.503 in. Bore, Cast Iron Rings, Harley-Davidson®, Kit

Part Number: UEM-KB305-005

Not Yet Reviewed

Estimated Ship Date: Jan 23, 2026 if ordered today

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Estimated Ship Date: Jan 23, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB425C.010

Piston Set, KB Hyper Twin Cam 88 (88ci) 1998-2006 Rod-7.667 Bore-3.750 Stroke-4.000 C.H. 1.270 Flat Top +1cc

Part Number: UEM-KB425C010

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB266.020

Piston and Ring Kit, Hypereutectic, 3.518 in. Bore, Harley-Davidson®, 10.50;1 Compression Ratio, Kit

Part Number: UEM-KB266-020

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB272.020

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

Part Number: UEM-KB272-020

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB297.040

Piston and Ring Kit, Hypereutectic, 3.538 in. Bore, Harley-Davidson®, 8.30:1 Compression Ratio, Kit

Part Number: UEM-KB297-040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB263.020

Piston and Ring Kit, Hypereutectic, 3.457 in. Bore, Harley-Davidson®, 7.80;1 Compression Ratio, Kit

Part Number: UEM-KB263-020

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB263.030

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: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits for 1996-2003 XL1200C SPORTSTER 1200 CUSTOM, XL1200S SPORTSTER 1200 SPORT, 1986-1987 XLH1100 - KB295.STD

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: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB905C.005

Piston and Ring Kit, Forged, 3.880 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB905C-005

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB916C.010

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

Part Number: UEM-KB916C-010

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

KB Performance V-Twin Piston and Ring Kits KB908C.020

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

Part Number: UEM-KB908C-020

Not Yet Reviewed

Estimated Ship Date: Jan 26, 2026 if ordered today

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Estimated Ship Date: Jan 26, 2026 if ordered today

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