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, 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: Dec 18, 2025 if ordered today

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PISTON RING SINGLE SET

Part Number: CNN-RS1MGNHD4005

5.0 out of 5 stars ( 1 )

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SINGLE PISTON RING SET

Part Number: MLE-4005MS-112-1

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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: Dec 10, 2025 if ordered today

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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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Estimated Ship Date: Dec 15, 2025 if ordered today

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Piston Rings, Chromium Nitride, 4.005 in. Bore, 1.5 mm, 1.5 mm, 3.0 mm, Thickness, Single Piston, Set

Part Number: TSR-CSH20105-1

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

Part Number: MLE-4010MS-15

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Estimated Ship Date: Dec 15, 2025 if ordered today

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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: TSR-CRL9090-5

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Ductile Moly Ring set.Features Ductile Iron 1.5 MM moly faced top ring with 1.5 MM Cast iron 2nd ring and Std Tension 4 MM oil rings. 8 Cylinder set.

Part Number: DMS-RSDM3004005

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

Part Number: DMS-RSDM2004010

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Piston Rings, Performance, 4.005 in. Bore, HV385 Thermal, 1.0mm, 1.0mm, 2.0mm, L1, 1 Set

Part Number: MLE-4010MS-112-1

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Piston Rings, Stainless Steel Top Ring, Steel Napier Second Ring, Stainless Steel Standard Tension Oil Ring, 4.005 in. 1.0mm, 1.0mm, 2.0mm, Set

Part Number: TSR-S00010

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Piston Rings, Stainless Steel Top Ring, Steel Napier Second Ring, Stainless Steel Standard Tension Oil Ring, 4.005 in. 1.2mm, 1.2mm, 3.0mm, Set

Part Number: TSR-S00031

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Xtream Power Adder,Steel Ring set. Gas Nitride, Steel 1.2 MM top ring with 1.2 MM Napier 2nd ring and Std Tension 3MM oil rings. 8 Cylinder set.

Part Number: DMS-RSXP6004005

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Xtream Power Adder,Steel Ring set. Gas Nitride, Steel 1.2 MM top ring with 1.2 MM Napier 2nd ring and Std Tension 3MM oil rings. 10 Cylinder set.

Part Number: DMS-RSXP6104005

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DSS Racing Performance Gas Nitrided Stainless Steel Ring set.

Part Number: DMS-S0012

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DSS Racing Performance Gas Nitrided Stainless Steel Ring set.

Part Number: DMS-RSXP3064005

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Piston Rings, Ductile Iron, 4.005 in. Bore, 1/16 in., 1/16 in., 1/8 in. Ring Thickness, 1-Cylinder, Set

Part Number: TSR-T0390-5-1

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Piston Rings, Chromium Nitride, 4.005 in. Bore, 1.2 mm, 1.2 mm, 3.0 mm, Thickness, 8-Cylinder, Set

Part Number: TSR-CSH47085

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