Pistons & Piston Rings

Piston Rings, Performance Series, 4.320 in. Bore, File Fit, 1/16 in., 1/16 in., 3/16 in., 8-Cylinder, Set

Part Number: MLE-4325MS

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Piston Rings, DMR-Series, Plasma-Moly, 4.030 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: DMS-RSDM4004030

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Estimated Ship Date: Dec 29, 2025 if ordered today

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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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Piston Rings, DMR-Series, Plasma-Moly, 4.030 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: DMS-RSDM2004030

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Piston Rings, Plasma-moly, 4.030 in. Bore, File Fit, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR3690-35

5.0 out of 5 stars ( 1 )

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Piston Rings, Plasma-moly, 3.917 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: HSN-2M5097

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

Part Number: SUM-17303C-20

4.5 out of 5 stars ( 2 )

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Piston Rings, Plasma-moly, 4.030 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-R977135

5.0 out of 5 stars ( 1 )

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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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Piston Rings, Performance Series, 4.280 in. Bore, File Fit, 1.5mm, 1.5mm, 3.0mm, 8-Cylinder, Set

Part Number: MLE-4285MS-15

5.0 out of 5 stars ( 1 )

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Piston Rings, Iron, 4.290 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SUM-135-2M551940

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Piston Rings, Pro GPX Gas Ported, 4.610 in. Bore, File Fit, Gas Nitrided, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP461016

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Estimated Ship Date: Jan 19, 2026 if ordered today

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Piston Rings, Premium Piston Ring Sets, Plasma-moly, 3.630 in. Bore, 1.2mm, 1.2mm, 2.5mm Thickness, V8, Set

Part Number: MAH-42149CP

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Premium Piston Ring Set

Part Number: SLP-R990230

4.67 out of 5 stars ( 6 )

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Piston Rings, Plasma-moly, 4.155 in. Bore, File Fit, 5/64 in., 5/64 in., 3/16 in., 8-Cylinder, Set

Part Number: SLP-R587935

5.0 out of 5 stars ( 2 )

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Piston Rings, Moly, 4.060 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: SLP-E-921K60

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Today

Piston Rings, Plasma-moly, 4.250 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR91905

5.0 out of 5 stars ( 1 )

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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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Piston Rings, 4.185 in. Bore, 1.0 mm, 1.0 mm, 2.0 mm, V8, Set

Part Number: MLE-4190MS-112

3.0 out of 5 stars ( 2 )

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Piston Rings, Premium Ductile Ring Sets, 0.040 in. Oversize, 4.165 in. Bore, Plasma-moly, 1/16 in., 1/16 in., 3/16 in. Thickness, V8, Set of 8

Part Number: HSN-2M5529040

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Piston Rings, Pro GPX Gas Ported, 4.600 in. Bore, File Fit, Gas Nitrided, 0.043 in., 1/16 in., 3/16 in. Thickness, V8, Set

Part Number: SUM-GP460046

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Piston Rings, Plasma-moly, 4.155 in. Bore, 1/16 in, 1/16 in. 3/16 in. Thickness, 8-Cylinder, Set

Part Number: JEP-J10008-41555

5.0 out of 5 stars ( 1 )

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Piston Rings, Plasma-moly, 4.030 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-R9903030

5.0 out of 5 stars ( 4 )

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Piston Rings, Plasma-moly, 4.040 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR9090-40

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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