KB Pistons & Piston Rings

Pistons, Hypereutectic, Step, 4.340 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8

Part Number: UEM-KB184-020

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Estimated Ship Date: Apr 7, 2026 if ordered today

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Pistons, Hypereutectic, Step, 4.380 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Mopar, Set of 8

Part Number: UEM-KB184-060

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Piston and Ring Kit, Hypereutectic, Step Head, 4.360 in. Bore, Mopar, Big Block, Kit

Part Number: UEM-KB184KTM-040

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Estimated Ship Date: Apr 7, 2026 if ordered today

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Piston and Ring Kit, Hypereutectic, Step Head, 4.380 in. Bore, Mopar, Big Block, Kit

Part Number: UEM-KB184KTM-060

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Estimated Ship Date: Apr 7, 2026 if ordered today

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Pistons, Hypereutectic, Dish, 3.766 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB186-030

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Pistons, Hypereutectic, Dish, 3.796 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB186-060

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Pistons, Hypereutectic, Dish, 3.736 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB186-STD

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Pistons, Hypereutectic, Dish, 4.020 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Set of 8

Part Number: UEM-KB189-020

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Pistons, Hypereutectic, Dish, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Set of 8

Part Number: UEM-KB189-030

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Piston and Ring Kit, Hypereutectic, Dome, 4.040 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB123KTM-040

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Pistons, Hypereutectic, Flat, 4.000 in. Bore, 1/16 in., 1/16 in., 3/16 in. Ring Grooves, Ford, Set of 8

Part Number: UEM-KB124-STD

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Piston and Ring Kit, Hypereutectic, Flat, 4.040 in. Bore, Ford, Small Block, Kit

Part Number: UEM-KB124KTD-040

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Piston and Ring Kit, Hypereutectic, Flat, 4.040 in. Bore, Ford, Small Block, Kit

Part Number: UEM-KB124KTM-040

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Pistons, Hypereutectic, Flat, 4.145 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB125-020

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Pistons, Hypereutectic, Flat, 4.165 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB125-040

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Pistons, Hypereutectic, Flat, 4.185 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB125-060

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Pistons, Hypereutectic, Flat, 4.125 in. Bore, Chevy, Set of 8

Part Number: UEM-KB125-STD

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Piston and Ring Kit, Hypereutectic, Flat, 4.145 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB125KTM-020

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Piston and Ring Kit, Hypereutectic, Flat, 4.155 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB125KTM-030

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Piston and Ring Kit, Hypereutectic, Flat, 4.185 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB125KTM-060

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Pistons, Hypereutectic, Dish, 4.185 in. Bore, Chevy, 400, Set of 8

Part Number: UEM-KB126-060

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Pistons, Hypereutectic, Dish, 4.125 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB126-STD

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Piston and Ring Kit, Hypereutectic, Dish, 4.145 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB126KTM-020

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Piston and Ring Kit, Hypereutectic, Dish, 4.185 in. Bore, Chevy, Small Block, Kit

Part Number: UEM-KB126KTM-060

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Pistons, Hypereutectic, Dome, 4.145 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Chevy, Set of 8

Part Number: UEM-KB127-020

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