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Mahle Original Plasma-Moly Ductile Piston Ring Sets

4.6 out of 5 stars 15 Customer Reviews

Mahle Original plasma-moly ductile ring sets are designed for the serious racer. They feature rings that maximize combustion sealing and minimize frictional losses to increase horsepower and oil control. The sets include reduced radial wall (RRW) top rings, and CP-20 oil rings to reduce tension, improve conformability and maximize power output. Ring sets with low and ultra-low tension oil rings are not recommend for street use and should utilize a vacuum pump for maximize performance.

Results 1 - 25 of 41

Piston Rings, Plasma-moly, 4.135 in. Bore, File Fit, 0.043 in., 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: MAH-3150183015

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

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

Part Number: MAH-3150034030

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

Piston Rings, Plasma-moly, 4.040 in. Bore, 1/16 in., 1/16 in., 3.0mm Thickness, 8-Cylinder, Set

Part Number: MAH-3150049040

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

Piston Rings, Plasma-moly, 4.000 in. Bore, File Fit, 1/16 in., 1/16 in., 3.0mm Thickness, 8-Cylinder, Set

Part Number: MAH-3150049005

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

Piston Rings, Plasma-moly, 4.030 in. Bore, 1/16 in., 1/16 in., 3.0mm Thickness, 8-Cylinder, Set

Part Number: MAH-3150049030

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

Piston Rings, Plasma-moly, 4.040 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: MAH-3150036040

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

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

Part Number: MAH-3150034035

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

Piston Rings, Plasma-moly, 4.060 in. Bore, File Fit, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: MAH-3150051060

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

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

Part Number: MAH-3150034040

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

Piston Rings, Plasma-moly, 4.000 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: MAH-3150036

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

Piston Rings, Plasma-moly, 4.135 in. Bore, File Fit, 0.043 in., 0.043 in., 3.0mm Thickness, 8-Cylinder, Set

Part Number: MAH-3150164015

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

Piston Rings, Plasma-moly, 4.030 in. Bore, File Fit, 0.043 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: MAH-3150120035

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

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

Part Number: MAH-3150036030

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

Piston Rings, Plasma-moly, 4.560 in. Bore, File Fit, 5/64 in., 5/64 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: MAH-3150053065

Not Yet Reviewed

Estimated Ship Date: Monday 4/20/2026 if shipped by air

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Estimated Ship Date: Monday 4/20/2026 if shipped by air

Piston Rings, Plasma-moly, 4.040 in. Bore, File Fit, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: MAH-3150036045

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

Piston Rings, Plasma-moly, 4.380 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: MAH-3150029060

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

Piston Rings, Plasma-moly, 4.005 in. Bore, File Fit, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: MAH-3150005005

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

Piston Rings, Plasma-moly, 4.030 in. Bore, File Fit, 0.043 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: MAH-3150119035

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

Piston Rings, Plasma-moly, 4.560 in. Bore, File Fit, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: MAH-3150001065

Not Yet Reviewed

Estimated Ship Date: May 22, 2026 if ordered today

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Estimated Ship Date: May 22, 2026 if ordered today

Piston Rings, Plasma-moly, 4.625 in. Bore, File Fit, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: MAH-3150056025

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

Piston Rings, Plasma-moly, 4.040 in. Bore, File Fit, 0.043 in., 0.043 in., 3.0mm Thickness, 8-Cylinder, Set

Part Number: MAH-3150059045

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

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

Part Number: MAH-3150032035

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

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

Part Number: MAH-3150002065

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

Piston Rings, Plasma-moly, 4.000 in. Bore, File Fit, 1/16 in., 1/16 in., 3.0mm Thickness, 8-Cylinder, Set

Part Number: MAH-3150139005

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today

Piston Rings, Plasma-moly, 4.155 in. Bore, 0.043 in., 0.043 in., 3.0mm Thickness, 8-Cylinder, Set

Part Number: MAH-3150169035

Not Yet Reviewed

Estimated Ship Date: May 21, 2026 if ordered today

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Estimated Ship Date: May 21, 2026 if ordered today