Piston Rings

Piston Rings, Pro GPX Gas Ported, 4.125 in. Bore, File Fit, Gas Nitrided, 1.2mm, 1.2mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP412512

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Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Gas Nitrided, 4.125 in. Bore, 0.047 in., 0.047 in., 3.0mm Thickness, Single Piston, Set

Part Number: WIS-4127GFX

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Estimated Ship Date: Monday 1/26/2026

Piston Rings, Pro GPX Gas Ported, 4.125 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP412515

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Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Moly, 4.125 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-E-243K

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 1/26/2026

Piston Rings, Performance, HV385 Thermal, 4.125 in. Bore, File Fit, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set

Part Number: MLE-4130MS-112

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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PISTON RINGS

Part Number: CNN-RS1MGNHD4125

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Estimated Ship Date: Monday 1/26/2026

Piston Rings, Stainless Steel Top Ring, Iron Napier Second Ring, Stainless Steel High Tension Oil Ring, 4.125+5 in., 0.043in., 0.043in., 0.043in,.Set

Part Number: TSR-CSH4434125

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Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Stainless Steel Series Performance, Gas Nitrided, 4.125 in. Bore, 1.2mm, 1.2mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: HSN-SN9050

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Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Plasma-moly, 4.125 in. Bore, 1/16 in, 1/16 in. 3/16 in. Thickness, 8-Cylinder, Set

Part Number: JEP-J10008-41255

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Pro GPX Gas Ported, 4.125 in. Bore, File Fit, Gas Nitrided, 1.0mm, 1.0mm, 2.0mm Thickness, V8, Set

Part Number: SUM-GP412510

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Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Ductile Plasma Iron Top, Ductile second, Std. Tension oil, File Fit for 4.125 in. bore 1.5mm, 1.5mm, 3.0mm, Set

Part Number: SUM-1362M8505005

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Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Plasma-Moly, 4.125 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, Set

Part Number: JEP-S100S8-41255

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Plasma-moly, 4.125 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: HSN-2M661

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/26/2026

Piston Rings, Plasma-moly, 4.125 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR0690

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Cast, 4.125 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-E-243X

4.75 out of 5 stars ( 4 )

Estimated Ship Date: Monday 1/26/2026

Piston Rings, Gas Ported, Plasma-moly, 4.125 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR0690GP-5

Not Yet Reviewed

Estimated Ship Date: Feb 9, 2026 if ordered today

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Piston Rings, Ductile Iron, 4.125 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CT0690-5

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Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Pro Seal, Gas Nitrided, 4.125 in. Bore, 1.2mm, 1.5mm, 3.0mm Thickness, Single Piston, Set

Part Number: JEP-JG31F8-41252

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Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Pro GPX Gas Ported, 4.125 in. Bore, File Fit, Plasma-moly, 5/64 in., 5/64 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP412564

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Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Performance Series, 4.125 in. Bore, File Fit, 1.5mm, 1.5mm, 3.0mm, 8-Cylinder, Set

Part Number: MLE-4130MS-15

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Original Premium Piston Ring Sets, Plasma-moly, 4.125 in. Bore, 1.2mm, 1.2mm, 2.0mm Thickness, V8, Set

Part Number: MAH-42083CP

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Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Pro GPX Gas Ported, 4.125 in. Bore, File Fit, Gas Nitrided, 0.043 in., 0.043 in., 3.0mm Thickness, V8, Set

Part Number: SUM-GP412543

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Estimated Ship Date: Monday 1/26/2026

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Piston Rings, Phosphate Coated, 4.125 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: HSN-661

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 1/26/2026

Piston Rings, Steel, 4.125 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CS06905

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Estimated Ship Date: Monday 1/26/2026

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