PONTIAC Engines & Components

Piston, Cast, Dish, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, GM, L4, Each

Part Number: UEM-S1528-STD

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Estimated Ship Date: Apr 13, 2026 if ordered today

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Piston, Cast, Dish, 4.020 in. Bore, 1/16 in., 5/64 in., 3/16 in. Ring Grooves, GM, L4, Each

Part Number: UEM-S1532-020

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Piston, Cast, Dish, 4.030 in. Bore, 1/16 in., 5/64 in., 3/16 in. Ring Grooves, GM, L4, Each

Part Number: UEM-S1532-030

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Piston, Cast, Dish, 4.060 in. Bore, 1/16 in., 5/64 in., 3/16 in. Ring Grooves, GM, L4, Each

Part Number: UEM-S1532-060

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Piston, Cast, Dish, 4.000 in. Bore, 1/16 in., 5/64 in., 3/16 in. Ring Grooves, GM, L4, Each

Part Number: UEM-S1532-STD

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Piston, Cast, Flat, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, GM, L4, Each

Part Number: UEM-S1539-040

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Piston, Cast, Flat, 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, GM, L4, Each

Part Number: UEM-S1539-060

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Piston, Cast, Dish, 3.520 in Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, GM, V6, Each

Part Number: UEM-S1456-020

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Piston, Cast, Dish, 3.530 in Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, GM, V6, Each

Part Number: UEM-S1456-030

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Piston, Cast, Dish, 3.500 in Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, GM, V6, Each

Part Number: UEM-S1456-STD

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Piston, Cast, Dish, 83mm Bore, 1.5mm, 1.5mm, 4.0mm Ring Grooves, GM, L4, Each

Part Number: UEM-S1458-1-0MM

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Piston, Cast, Dish, 82mm Bore, 1.5mm, 1.5mm, 4.0mm Ring Grooves, GM, L4, Each

Part Number: UEM-S1458-STD

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Pistons, Premium, Forged 2618 Aluminum, 4.355 in. Bore, 4.250 in. Stroke, Flat Top, Left Side, Pontiac, Each

Part Number: UEM-SIC631L-005

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Pistons, Premium, Forged 2618 Aluminum, 4.350 in. Bore, 4.250 in. Stroke, Flat Top, Left Side, Pontiac, Each

Part Number: UEM-SIC631L-STD

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Pistons, Premium, Forged 2618 Aluminum, 4.355 in. Bore, 4.250 in. Stroke, Flat Top, Right Side, Pontiac, Each

Part Number: UEM-SIC631R-005

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Pistons, Premium, Forged 2618 Aluminum, 4.350 in. Bore, 4.250 in. Stroke, Flat Top, Right Side, Pontiac, Each

Part Number: UEM-SIC631R-STD

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Pistons, Premium, Forged 2618 Aluminum, 4.200 in. Bore, 4.250 in. Stroke, Dish, Right Side, Pontiac, Each

Part Number: UEM-SIC981R-075

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Pistons, Premium, Forged 2618 Aluminum, 4.210 in. Bore, 4.250 in. Stroke, Dish, Right Side, Pontiac, Each

Part Number: UEM-SIC981R-085

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Pistons, Premium, Forged 2618 Aluminum, 4.125 in. Bore, 4.250 in. Stroke, Dish, Right Side, Pontiac, Each

Part Number: UEM-SIC981R-STD

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Pistons, Premium, Forged 2618 Aluminum, 4.150 in. Bore, 4.210 in. Stroke, Dish, Left Side, Pontiac, Each

Part Number: UEM-SIC889L-STD

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Pistons, Premium, Forged 2618 Aluminum, 4.210 in. Bore, 4.250 in. Stroke, Dish, Left Side, Pontiac, Each

Part Number: UEM-SIC981L-085

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Pistons, Premium, Forged 2618 Aluminum, 4.125 in. Bore, 4.250 in. Stroke, Dish, Left Side, Pontiac, Each

Part Number: UEM-SIC981L-STD

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Pistons, Premium, Forged 2618 Aluminum, 4.155 in. Bore, 4.250 in. Stroke, Dish, Right Side, Pontiac, Each

Part Number: UEM-SIC981R-030

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Pistons, Premium, Forged 2618 Aluminum, 4.200 in. Bore, 4.250 in. Stroke, Dish, Left Side, Pontiac, Each

Part Number: UEM-SIC981L-075

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Pistons, Premium, Forged 2618 Aluminum, 4.185 in. Bore, 4.250 in. Stroke, Dish, Left Side, Pontiac, Each

Part Number: UEM-SIC981L-060

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