Pistons & Piston Rings

Piston Rings, Plasma-moly, 4.310 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR919060

4.25 out of 5 stars ( 4 )

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Piston Rings, Plasma-moly, 4.000 in. Bore, File Fit, 5/64 in., 5/64 in., 3/16 in., 8-Cylinder, Set

Part Number: SLP-R93435

5.0 out of 5 stars ( 1 )

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Piston Rings, Performance Series, 4.185 in. Bore, 1/16 in., 1/16 in., 3/16 in., 8-Cylinder, Set

Part Number: MLE-4185MS

5.0 out of 5 stars ( 2 )

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Pistons, Hypereutectic, Flat, 3.940 in. Bore, 2.0mm, 2.0mm, 4.0mm Ring Grooves, Mopar, Set of 8

Part Number: UEM-3234HC-030

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Piston Rings, Plasma-moly, 4.375 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR9190-125

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Piston Rings, Pro GPX Gas Ported, 4.560 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP456016

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Piston Rings, Plasma-moly, 4.060 in. Bore, 1/16 in., 1/16 in., 1/8 in. Thickness, 8-Cylinder, Set

Part Number: EW1-444065

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Pistons, Hypereutectic, Dish, 4.030 in. Bore, Ford, Lincoln, Mercury, Set of 8

Part Number: SLP-H654CP30

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Piston Rings, Plasma-moly, 4.500 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-R104515

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Piston Rings, Plasma-moly, 4.320 in. Bore, 1/16 in, 1/16 in. 3/16 in. Thickness, 8-Cylinder, Set

Part Number: JEP-J10008-43205

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Estimated Ship Date: Apr 1, 2026 if ordered today

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Pistons, Cast, Flat, 3.875 in. Bore, 1/8 in., 1/8 in., 5/32 in. Ring Grooves, Ford, L4, Set of 4

Part Number: UEM-1000-STD

5.0 out of 5 stars ( 1 )

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Piston Rings, Performance, 4.155 in. Bore, HV385 Thermal, 1.0mm, 1.0mm, 2.0mm, 8-Cylinder, 8 Sets

Part Number: MLE-4155MS-112D

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Estimated Ship Date: Mar 30, 2026 if ordered today

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Pistons, Hypereutectic, Dish, 4.420 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Set of 8

Part Number: UEM-3109HC-060

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Estimated Ship Date: Apr 20, 2026 if ordered today

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Piston Rings, Plasma-moly, 4.505 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR9190-255

4.0 out of 5 stars ( 1 )

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Pistons, Hypereutectic, Flat, 4.020 in. Bore, Ford, Mercury, Set of 8

Part Number: SLP-H336CP20

3.0 out of 5 stars ( 1 )

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Piston Rings, Performance Series, 4.010 in. Bore, Plus 0.005 in., File Fit, 1.0mm, 1.0mm, 2.0mm, 8-Cylinder, Set

Part Number: MLE-4015MS-112

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Pistons, Cast, Dish, 3.780 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, AMC, V8, Set of 8

Part Number: UEM-2234-030

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Pistons, Cast, Flat, 4.150 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Pontiac, V8, Set of 8

Part Number: UEM-1526-030

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Piston Rings, Pro GPX Gas Ported, 4.040 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP404012

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Pistons, Hypereutectic, Dish, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Ring Grooves, Ford, Set of 8

Part Number: UEM-3165HC-STD

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 20, 2026 if ordered today

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Piston Rings, Pro GPX Gas Ported, 4.030 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set

Part Number: SUM-GP403043

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Piston Rings, Performance Series, 4.040 in. Bore, 1/16 in., 1/16 in., 3/16 in., 8-Cylinder, Set

Part Number: MLE-4040MS

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Mar 30, 2026 if ordered today

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Piston Rings, Premium Ductile Ring Sets, Plasma-moly, 4.000 in. Bore, 1.5mm, 1.5mm, 4.0mm Thickness, L8, V8, Set of 8

Part Number: HSN-2M4346

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Pistons, Hypereutectic, Dish, 101.6mm Bore, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Chevy, V8, Set of 8

Part Number: UEM-3516HC-STD

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Apr 20, 2026 if ordered today

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Piston, 2618 Forged Aluminum, Flat, 3.209 in. Bore, 1.0mm, 1.2mm, 2.8mm Ring Grooves, for use on Honda®/Acura®, L4, Each

Part Number: WIS-6542M815AP

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