What is the primary benefit of plasma-moly steel top rings?

Plasma-moly steel top rings are chosen for their exceptional durability and wear resistance. This coating helps the rings seat properly and withstand the high temperatures and pressures found in performance engines, leading to a longer lifespan and consistent sealing.

What does the 4.185-inch bore size typically indicate?

A 4.185-inch bore size is commonly found in many performance V8 engine applications. It's important to measure your cylinder bore accurately to ensure these rings will be the correct fit for your specific engine build.

What does it mean that this product is not CARB approved?

Not being CARB (California Air Resources Board) approved means these piston rings do not meet California's emissions standards. Consequently, they cannot be legally shipped to or sold within the state of California.

Mahle OE Piston Ring Set 3010993B

Name: Mahle Rings Perf 4.185in x 1.5MM .151 RW Plasma-Moly Steel Top Ring Moly Ring Set (48 Qty Bulk Pack)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-perf-4-185in-x-1-5mm-151-rw-plasma-moly-steel-top-ring-moly-t14-48751
Price: 582.62 USD
Availability: BackOrder

Mahle Rings Perf 4.185in x 1.5MM .151 RW Plasma-Moly Steel Top Ring Moly Ring Set (48 Qty Bulk Pack)

$582.62

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 piston ring set, 4.185in bore. Plasma-moly steel top rings. 48-piece bulk pack.

Key Features

This is a Mahle OE performance piston ring set.
Designed for a 4.185-inch engine bore.
Features 1.5mm thick plasma-moly steel top rings for improved durability and wear resistance.
The second ring is also moly-coated for enhanced sealing and longevity.
Comes in a bulk pack containing 48 sets of rings.
Not CARB approved; cannot ship to California.

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Product Details

Mahle is a well-known name in the engine parts world, especially for their piston rings. This particular set, part number 3010993B, is built for performance applications and comes in a bulk pack of 48 sets, making it ideal for shops or engine builders working on multiple projects. The top rings are made from plasma-moly steel, a strong material chosen for its durability and ability to handle the heat and stress of performance engines. The 1.5mm thickness of the top ring and the .151 inch width of the second ring are common dimensions for performance builds, offering a good balance of sealing and reduced friction.

These rings are designed for a 4.185-inch bore, which is a common size for many performance V8 engines. The plasma-moly coating on the top ring is a key feature; it's a hard, wear-resistant surface that helps the ring seat properly and maintain its integrity under high cylinder pressures. This coating also helps reduce friction, which can lead to improved engine efficiency and power. The second ring is also moly-coated, further enhancing its wear resistance and sealing capabilities. This attention to material and coating means these rings are built to last and perform consistently in demanding conditions.

Because this is a bulk pack of 48 sets, it’s a practical choice for engine builders or performance shops that frequently work on engines requiring this specific bore size and performance ring configuration. It ensures you have plenty on hand for multiple builds. Please note that these rings are not CARB approved and cannot be shipped to California.