MERCURY COMET Pistons & Piston Rings

Piston Rings, Phosphate Coated, 4.020 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: HSN-139020

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Pistons, Cast, Dish, 4.050 in. Bore, 5/64 in., 3/32 in., 3/16 in. Ring Grooves, Ford, Big Block FE, Set of 8

Part Number: UEM-1139-STD

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Estimated Ship Date: Dec 19, 2025 if ordered today

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Engine Piston Ring Set, 8-Cyl Ring Set; Phosphate

Part Number: HSN-652030

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Piston Rings, Phosphate Coated, 4.010 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: HSN-139010

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Piston Rings, Chrome, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-E-251KC

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Pistons, Cast, Dish, 4.110 in. Bore, 5/64 in., 3/32 in., 3/16 in. Ring, Ford, Big Block FE, Set of 8

Part Number: UEM-1139-060

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Estimated Ship Date: Dec 19, 2025 if ordered today

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Pistons, Cast, Dish, 3.710 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring, Ford, Mercury, L6, Set of 6

Part Number: UEM-1120-030

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Estimated Ship Date: Dec 19, 2025 if ordered today

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

Part Number: UEM-3101HC-020

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Estimated Ship Date: Dec 18, 2025 if ordered today

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Pistons, Hypereutectic, Flat, 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Set of 8

Part Number: UEM-3101HC-060

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Estimated Ship Date: Dec 18, 2025 if ordered today

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Piston Rings, Claimer Series Performance Ring Sets, 0.040 in. Oversize, 4.039 in. Bore, Plasma-moly, 1/16 in., 1/16 in., 3/16 in., L8, V8, Set of 8

Part Number: HSN-CM5532040

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Engine Piston Ring Set, 8-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M5540030

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Piston Rings, Premium Ductile Ring Sets, Plasma-moly, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, for Single Piston, Set

Part Number: HSN-2M139S

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Engine Piston Ring Set, 8-Cyl Ring Set; Plasma Moly

Part Number: HSN-2M571030

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Pistons, Hypereutectic, Flat, 4.060 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Set of 8

Part Number: UEM-1144HC-060

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 17, 2025 if ordered today

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Pistons, Cast, Dish, 4.080 in. Bore, 5/64 in., 3/32 in. 3/16 in. Ring Grooves, Ford, Big Block FE, Set of 8

Part Number: UEM-1130-030

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 18, 2025 if ordered today

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Pistons, Cast, Dish, 4.050 in. Bore, 5/64 in., 3/32 in. 3/16 in. Ring Grooves, Ford, Big Block FE, Set of 8

Part Number: UEM-1130-STD

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Estimated Ship Date: Dec 18, 2025 if ordered today

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Engine Piston Ring Set, Single Cyl Ring Set; Plasma Moly

Part Number: HSN-2M586S020

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Pistons, Cast, Flat, 3.530 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Small Block, Set of 8

Part Number: UEM-3187-030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 18, 2025 if ordered today

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Piston Rings, Premium Ductile Ring Sets, Plasma-moly, 4.030 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, L8, V8, Set of 8

Part Number: HSN-2M5505030

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Piston Rings, Premium Ductile Ring Sets, 0.030 in. Oversize, 4.030 in. Bore, Plasma-moly, 1/16 in., 1/16 in., 1/8 in. Thickness, L8, V8, Set of 8

Part Number: HSN-2M5521030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Dec 1, 2025 if ordered today

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Piston Rings, Premium Ductile Ring Sets, 0.065 in. Oversize, 4.065 in. Bore, Plasma-moly, 5/64 in., 5/64 in., 3/16 in. Thickness, L8, V8, Set of 8

Part Number: HSN-2M5508065

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Engine Piston Ring Set, 8-Cyl Ring Set; Plasma Moly

Part Number: HSN-SM8556035

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Engine Piston Ring Set, 8-Cyl Ring Set; Plasma Moly

Part Number: HSN-SM8556065

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Estimated Ship Date: Dec 1, 2025 if ordered today

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Silv-O-Lite Piston - Ford 390ci/6.4L (V8) Kit with Rings

Part Number: UEM-1130-040K1

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Estimated Ship Date: Dec 19, 2025 if ordered today

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Piston Rings, Claimer Series Performance Piston Ring Sets, Plasma-moly, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, L8, V8, Set of 8

Part Number: HSN-CM5531

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Estimated Ship Date: Dec 1, 2025 if ordered today

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