Piston Rings

Piston Rings, Gas Nitrided Steel Top, Martensitic Ductile Napier Second, Std. Tension Oil, File Fit for 4.005 in. Bore, 1.2mm, 1.2mm, 3.0mm, Set

Part Number: SUM-136SN9045010

5.0 out of 5 stars ( 3 )

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Piston Rings, Plasma-moly, 4.005 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: HSN-2M139005

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Piston Rings, Plasma-moly, 4.005 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: HSN-2M4860005

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Piston Rings, Gas Nitrided, 4.000 in. Bore, 1.2mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: JEP-JG310840007

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Estimated Ship Date: May 21, 2026 if ordered today

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Piston Rings, Gas Ported, Plasma-moly, 4.000 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: TSR-CR9090GP-5

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Estimated Ship Date: May 15, 2026 if ordered today

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Piston Rings, Stainless Steel Series Performance, Gas Nitrided, 4.005 in. Bore, 1.2mm, 1.2mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: HSN-SN9045005

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Piston Rings, Pro GPX Gas Ported, 4.005 in. Bore, File Fit, Gas Nitrided, 1.5mm, 1.5mm, 3.0mm Thickness, V8, Set

Part Number: SUM-GP400515

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Piston Rings, Plasma-moly, 4.005 in. Bore, 1.2mm, 1.5mm, 2.5mm Thickness, 8-Cylinder, Set

Part Number: HSN-2M5170005

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Estimated Ship Date: May 18, 2026 if ordered today

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

Part Number: HSN-2M4626005

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SINGLE PISTON RING SET

Part Number: MLE-4005MS-112-1

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

Part Number: HSN-2M8521S005

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Piston Rings, Premium Ductile Ring Sets, Plasma-moly, 4.005 in. Bore, 1.5mm, 1.5mm, 4.0mm Thickness, L8, V8, W8, Set

Part Number: HSN-2M4726005

5.0 out of 5 stars ( 2 )

Estimated Ship Date: May 18, 2026 if ordered today

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

Part Number: HSN-2M4860S005

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PISTON RING SINGLE SET

Part Number: CNN-RS1MGNHD4005

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

Piston Rings, File Fit, 4.005 in. Bore, HV385 Thermal, 1.0mm, 1.0mm, 2.0mm, 8-Cylinder, 8 Sets

Part Number: MLE-4010MS-112

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RING-4.001, 4.005 1.5,3mm STL TOP

Part Number: MAN-46110ST-8

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Estimated Ship Date: Jun 15, 2026 if ordered today

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Piston Rings, Individual Plasma-Moly Steel Piston Rings, Includes Top Ring Only, 4.005 in. Bore, File Fit, 1.2mm Thickness, V8, Set of 8

Part Number: MAH-3010002

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Estimated Ship Date: Jun 3, 2026 if ordered today

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

Part Number: HSN-2M4626S005

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Estimated Ship Date: May 18, 2026 if ordered today

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

Part Number: HSN-2M5523005

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Estimated Ship Date: May 18, 2026 if ordered today

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

Part Number: HSN-4626005

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Estimated Ship Date: May 18, 2026 if ordered today

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

Part Number: HSN-2M8571S005

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Estimated Ship Date: May 18, 2026 if ordered today

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Piston Rings, Moly, 4.005 in. Bore, 5/64 in., 5/64 in., 3/16 in. Thickness, 6-Cylinder, Set

Part Number: SLP-E-408K40

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

Part Number: HSN-2M5540005

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Estimated Ship Date: May 14, 2026 if ordered today

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

Part Number: HSN-2M5538S005

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Estimated Ship Date: May 14, 2026 if ordered today

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