Sealed Power Plasma-Moly Piston Ring Sets

4.63 out of 5 stars 41 Customer Reviews

Sealed Power plasma-moly piston ring sets feature heat-resistant plasma-molybdenum facing material. Plasma-moly is a relatively soft and porous ring facing with exc

Sealed Power plasma-moly piston ring sets feature heat-resistant plasma-molybdenum facing material. Plasma-moly is a relatively soft and porous ring facing with excellent oil carrying capacity and fast conformability (break-in) to the cylinder bore surface.

They are a premium part of the comprehensive line of Sealed Power engine components that provide innovative designs, use leading edge materials, and utilize ISO and QS certified manufacturing to deliver top-quality products that meet the rigorous demands of both classic and today's modern engines.

Features of and benefits of Sealed Power plasma-moly piston ring sets include:

* Improved bond strength of plasma-moly provides excellent resistance to flaking
* Controlled porosity of the coating results in improved top ring lubrication
* Variety of top ring materials
* Decreased friction
* High melting point of moly for very high resistance to scuffing
* Exacting tolerances
* Meets or exceeds OEM specifications
* Recommended for street use, marine use, and for racing where file fitting is not required

Showing In Stock Items. Show All 24 Items.

Results 1 - 15 of 15

Sealed Power Plasma-Moly Piston Ring Sets E-921K

Sealed Power Plasma-Moly Piston Ring Sets E-921K

Piston Rings, Moly, 4.000 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: SLP-E-921K

4.5 out of 5 stars ( 10 )

Estimated Ship Date: Today

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Sealed Power Plasma-Moly Piston Ring Sets E-458K

Piston Rings, Moly, 4.000 in. Bore, 1.5mm, 1.5mm, 4.0mm Thickness, 8-Cylinder, Set

Part Number: SLP-E-458K

4.59 out of 5 stars ( 17 )

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Sealed Power Plasma-Moly Piston Ring Sets E-921K 20

Piston Rings, Moly, 4.020 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: SLP-E-921K20

Not Yet Reviewed

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Sealed Power Plasma-Moly Piston Ring Sets E-921K 30

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

Part Number: SLP-E-921K30

5.0 out of 5 stars ( 3 )

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Sealed Power Plasma-Moly Piston Ring Sets R1060750MM

Piston Rings, Plasma-Moly, 97.50mm Bore, 1.2mm, 1.2mm, 2.5mm Thickness, Single Piston, Set

Part Number: SLP-R10607-50MM

Not Yet Reviewed

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Sealed Power Plasma-Moly Piston Ring Sets R934365

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

Part Number: SLP-R934365

4.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Sealed Power Plasma-Moly Piston Ring Sets E-458K 30

Piston Rings, Moly, 4.030 in. Bore, 1.5mm, 1.5mm, 4.0mm Thickness, 8-Cylinder, Set

Part Number: SLP-E-458K30

4.8 out of 5 stars ( 5 )

Estimated Ship Date: Today

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Sealed Power Plasma-Moly Piston Ring Sets E-921K 40

Piston Rings, Moly, 4.040 in. Bore, 1.5mm, 1.5mm, 3.0mm Thickness, 8-Cylinder, Set

Part Number: SLP-E-921K40

5.0 out of 5 stars ( 1 )

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Sealed Power Plasma-Moly Piston Ring Sets R934345

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

Part Number: SLP-R-9343-45

Not Yet Reviewed

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Sealed Power Plasma-Moly Piston Ring Sets R93435

Piston Rings, Plasma-moly, 4.000 in. Bore, File Fit, 5/64 in., 5/64 in., 3/16 in., 8-Cylinder, Set

Part Number: SLP-R93435

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

Sealed Power Plasma-Moly Piston Ring Sets R10607

Piston Rings, Plasma-Moly, 97mm Bore, 1.2mm, 1.2mm, 2.5mm Thickness, Single Piston, Set

Part Number: SLP-R10607

Not Yet Reviewed

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Sealed Power Plasma-Moly Piston Ring Sets R1037430

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

Part Number: SLP-R1037430

Not Yet Reviewed

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Sealed Power Plasma-Moly Piston Ring Sets R934635

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

Part Number: SLP-R934635

Not Yet Reviewed

Estimated Ship Date: Feb 17, 2026 if ordered today

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Estimated Ship Date: Feb 17, 2026 if ordered today

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Hastings Premium Ductile Ring Sets 2M5510035

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026

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Sealed Power Plasma-Moly Piston Ring Sets R1060775MM

Piston Rings, Plasma-moly, 3.848 in. Bore, 1.2mm, 1.2mm, 2.5mm Thickness, Single Piston, Set

Part Number: SLP-R10607-75MM

Not Yet Reviewed

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Sealed Power Plasma-Moly Piston Ring Sets R990220

Piston Rings, Plasma-moly, 4.020 in. Bore, 1/16 in., 1/16 in., 3/16 in. Thickness, 8-Cylinder, Set

Part Number: SLP-R990220

Not Yet Reviewed

Estimated Ship Date: Feb 16, 2026 if ordered today

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Estimated Ship Date: Feb 16, 2026 if ordered today

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