What is the advantage of a Napier-style second ring?

A Napier-style second ring is designed with a specific profile that helps to scrape oil from the cylinder wall more effectively. This improved oil control can lead to better lubrication and reduced oil consumption in high-performance engines.

What does the '1.0MM' and '.136in' refer to?

The '1.0MM' refers to the thickness of the second ring, which is a common performance dimension. The '.136in' likely refers to the ring groove depth or a related measurement, ensuring proper fitment within the piston groove.

Is this set suitable for all engine builds?

This set is specifically designed for engines with a 4.165-inch bore and features a performance-oriented Napier steel second ring. It's best suited for engine builders or shops working on performance applications where precise sealing and oil control are critical.

Mahle OE Piston Rings 3021224B - Performance Napier Steel

Name: Mahle Rings Perf Napier Steel 2nd Ring 4.165in x 1.0MM .136in RW Plain Ring Set (48 Qty Bulk Pack)
Brand: Mahle OE
SKU: mahle-oe-mahle-rings-perf-napier-steel-2nd-ring-4-165in-x-1-0mm-136in-rw-plain-r-t14-48428
Price: 239.40 USD
Availability: BackOrder

Mahle Rings Perf Napier Steel 2nd Ring 4.165in x 1.0MM .136in RW Plain Ring Set (48 Qty Bulk Pack)

$239.40

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 Napier Steel 2nd Ring Set. 4.165in bore, 1.0mm thickness. Bulk 48-piece pack.

Key Features

This is a Mahle OE Performance Napier steel 2nd ring set.
The rings have a 4.165-inch bore size.
The second ring features a 1.0mm thickness and a Napier profile.
This is a bulk pack containing 48 individual ring sets.
Constructed from durable steel for strength and tension maintenance.

Secure CheckoutFast Shipping631-982-0042

Product Details

Starting with a 1.0mm thickness for the second ring, this Mahle OE Napier steel ring set is built for performance applications. The Napier design helps improve oil control and reduce blow-by, especially in high-performance engines where sealing is critical. This bulk pack contains 48 individual ring sets, making it a solid option for engine builders or shops working on multiple vehicles.

These rings are constructed from durable steel, chosen for its strength and ability to maintain tension under demanding conditions. The specific Napier profile on the second ring is a notable design choice that aids in scraping oil from the cylinder wall more effectively than a standard ring, contributing to better lubrication and reduced wear. This attention to detail in the ring's profile and material selection means you're getting a well-built component designed to perform.

This set is intended for engine rebuilding projects where precise piston ring fitment is essential for proper compression and oil management. Ensure you verify the 4.165-inch bore size matches your specific application before ordering.