What is the benefit of the plasma-moly coating?

The plasma-moly coating is applied using an HVOF process, creating a dense layer that significantly reduces wear on both the ring and the cylinder wall. This contributes to a longer engine life and maintains consistent sealing under various operating conditions.

What does '4.010in' refer to?

The '4.010in' designation refers to the cylinder bore diameter that these piston rings are designed to fit. This is a common size for many V8 engines, but it's crucial to verify this measurement against your specific engine block.

Are these rings suitable for all engine builds?

These rings are designed for performance and durability, featuring a steel construction and plasma-moly coating. However, they are not CARB approved and cannot be shipped to California. Always consult your engine's service manual for specific recommendations.

Mahle Performance Piston Rings 3011054B

Name: Mahle Rings Perf Plasma Steel Top Ring 4.010in 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-4-010in-x-1-0mm-143in-rw-hvof-mo-t14-47937
Price: 632.76 USD
Availability: BackOrder

Mahle Rings Perf Plasma Steel Top Ring 4.010in x 1.0MM .143in RW HVOF Moly Ring Set (48 Qty Bulk Pk)

$632.76

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. 4.010in bore, 1.0mm x .143in. Bulk pack of 48. Not CARB approved.

Key Features

Fits a 4.010 inch cylinder bore.
Top ring thickness is 1.0mm.
Oil ring thickness is .143 inches.
Features a High Velocity Oxy-Fuel (HVOF) plasma-moly coating on the top ring for enhanced durability.
Constructed from steel for good tension and resilience.
Bulk pack contains 48 rings.

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Product Details

This is a bulk pack of 48 Mahle OE performance plasma steel top piston rings, designed for a 4.010-inch bore. These rings feature a 1.0mm top ring thickness and a .143-inch oil ring thickness, utilizing a High Velocity Oxy-Fuel (HVOF) Moly coating for improved durability and performance. This set is intended for engine rebuilding applications where a high level of precision and wear resistance is required.

The plasma-moly coating on these top rings is applied using an advanced HVOF process, which creates a dense, well-bonded layer that stands up to heat and friction. This coating helps to reduce wear on both the ring and the cylinder wall, contributing to a longer engine life and consistent sealing. The steel construction offers good tension and resilience, crucial for maintaining proper compression and oil control under demanding conditions. This bulk pack is ideal for shops or builders who frequently work on engines requiring this specific ring size and specification.

It's important to note that these rings are not CARB approved and cannot be shipped to California. Always refer to your engine's specific service manual for proper installation procedures and ring gap specifications to ensure optimal performance and longevity.