What is the purpose of the plasma-moly coating on these rings?

The plasma-moly coating, applied via HVOF thermal spray, is designed to significantly improve the ring's resistance to wear, especially under high operating temperatures and pressures. It also helps create a smoother surface that reduces friction against the cylinder wall and aids in oil control.

What does the '48 Qty Bulk Pk' mean for me?

This means the set contains 48 individual piston rings. This quantity is typically intended for engine builders or shops that are working on multiple engines simultaneously or are building high-performance engines that may require specific ring sets.

Are these rings suitable for all engine builds?

These are performance-oriented rings with specific dimensions and coatings. While Mahle OE is known for quality, it's important to ensure these dimensions (4.130in bore, 1.0mm top ring, 0.143in oil groove) match your engine's pistons and specifications. They are also not CARB approved and cannot be shipped to California.

Mahle OE Piston Rings 3011067B - Performance Plasma Steel

Name: Mahle Rings Perf Plasma Steel Top Ring 4.130in x 1.0MM .143in RW HVOF Moly Ring Set (48 Qty Bulk Pk)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-perf-plasma-steel-top-ring-4-130in-x-1-0mm-143in-rw-hvof-mo-t14-47889
Price: 564.26 USD
Availability: BackOrder

Mahle Rings Perf Plasma Steel Top Ring 4.130in x 1.0MM .143in RW HVOF Moly Ring Set (48 Qty Bulk Pk)

$564.26

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Mahle OE performance plasma steel top piston rings. 48-piece bulk pack, 4.130in bore, 1.0mm thickness.

Key Features

Fits engines with a 4.130 inch bore.
Top ring thickness is 1.0mm.
Features a 0.143 inch oil ring groove.
Top ring face is plasma-moly applied with HVOF thermal spray for improved wear resistance and reduced friction.
Sold in a bulk pack of 48 rings.

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Product Details

Mahle is a well-known name in the automotive world, especially for their OE (Original Equipment) quality engine components. This bulk pack of performance plasma steel top piston rings is a prime example of their commitment to engine building. These rings are designed for engines with a 4.130-inch bore and feature a 1.0mm top ring thickness with a 0.143-inch oil ring groove, utilizing a plasma-moly face applied with HVOF (High Velocity Oxygen Fuel) thermal spray for improved durability and reduced friction.

The plasma-moly face is a key feature here. This advanced coating is applied using the HVOF process, which creates a very dense and well-bonded layer of molybdenum. This not only helps the ring resist wear under high operating temperatures and pressures but also creates a smoother surface that works well with cylinder walls, reducing friction and improving oil control. This means better sealing for more power and a longer-lasting engine, especially in performance applications where these factors are critical. The fact that these are sold in a bulk pack of 48 indicates they are intended for engine builders or shops working on multiple engines or high-performance builds.

When rebuilding an engine, especially a performance one, the piston rings are a crucial component for sealing the combustion chamber and managing oil. This set from Mahle OE offers a robust solution with materials and coatings chosen for demanding use. Remember that these rings are not CARB approved and cannot be shipped to California. Always refer to your specific engine build's requirements and manufacturer's instructions for proper installation.