KB V-Twin Engines & Components

Piston and Ring Kit, Forged, Dome, 3.875 in. Bore, Harley-Davidson®, V2, Kit

Part Number: UEM-KB905C-STD

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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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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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Piston Set, Super Duty KB Forged Piston-/Twin Cam 124"

Part Number: UEM-KB716LCA010

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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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PISTON SET OF 2

Part Number: UEM-KB661C-STD

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Piston and Ring Kit, Hypereutectic, 3.665 in. Bore, Harley-Davidson®, 10.50:1 Compression Ratio, Kit

Part Number: UEM-KB294-040

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

Part Number: UEM-KB292-050

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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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Piston and Ring Kit, Hypereutectic, 3.635 in. Bore, Harley-Davidson®, 10.50;1 Compression Ratio, Kit

Part Number: UEM-KB294-010

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

Part Number: UEM-KB272-STD

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Estimated Ship Date: Jun 8, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, 3.875 in. Bore, Harley-Davidson®, 10.00:1 Compression Ratio, Kit

Part Number: UEM-KB409C-STD

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Piston Set, Super Duty KB Forged Piston - Twin Cam 96 Big Bore Dish 117"

Part Number: UEM-KB917LCASTD

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

Part Number: UEM-KB918C-STD

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Piston Set, KB Hyper Piston Twin Cam 88 (88ci) 1998-2006 Rod -7.667 Bore -3.750 Stroke-4.000 C.H. 1.270 Dome -16.8cc

Part Number: UEM-KB426C010

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Piston and Ring Kit, Hypereutectic, 3.228 in. Bore, Harley-Davidson®, 8.20;1 Compression Ratio, Kit

Part Number: UEM-KB292-040

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PISTON SET

Part Number: UEM-KB659C-010

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

Part Number: UEM-KB305-010

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

Part Number: UEM-KB263-010

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Harley Davidson Milwaukee 8 128" 4.250x4.500 -2.5cc 2017-Present 11.7:1

Part Number: UEM-KB596LCA005

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Harley Davidson Milwaukee 8 128" 4.250x4.500 -2.5cc 2017-Present 11.7:1

Part Number: UEM-KB596LCASTD

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PISTONS

Part Number: UEM-KB661LCA-STD

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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

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Piston Set, Super Duty KB Forged Coated Anodized Piston - Big Bore 120" Milwaukee 8 114" and 117" bored to 4.125"

Part Number: UEM-KB542LCASTD

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