What is the advantage of a Napier 2nd ring design?

The Napier 2nd ring design is known for its improved oil control and reduced blow-by. This helps maintain better cylinder sealing and can contribute to more efficient combustion, especially in performance applications.

What does the '1.0mm' thickness refer to?

The 1.0mm measurement refers to the thickness of the second compression ring. This is a common specification for performance engine builds where precise ring dimensions are important for sealing.

Can these rings be shipped to California?

No, these rings are not CARB approved and cannot be shipped to California due to emissions regulations.

Mahle OE Piston Rings 3021230B - Performance Napier Steel

Name: Mahle Rings Perf Napier Steel 2nd Ring 4.260in 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-4-260in-x-1-0mm-136in-rw-plain-r-t14-48408
Price: 324.85 USD
Availability: BackOrder

Mahle Rings Perf Napier Steel 2nd Ring 4.260in x 1.0MM .136in RW Plain Ring Set (48 Qty Bulk Pack)

$324.85

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. 4.260in bore, 1.0mm thickness. Bulk pack of 48 rings.

Key Features

This is a Mahle OE Performance Napier Steel 2nd Ring Set.
The rings have a 4.260-inch bore size.
The second ring thickness is 1.0mm.
This is a bulk pack containing 48 individual ring sets.
The Napier ring design is known for improved oil control and reduced blow-by.
Steel construction offers good durability and consistent tension.

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 offers improved oil control and reduced blow-by, especially in high-performance engines where sealing is critical. This bulk pack contains 48 individual ring sets, making it ideal for engine builders or shops working on multiple projects.

The steel construction of these rings offers good durability and consistent tension against the cylinder wall, which is important for maintaining compression and efficient combustion. The 4.260-inch bore size is a common specification for many performance V8 engines. Mahle is a well-known name in engine components, and these rings are designed to meet the demands of performance builds.

When rebuilding an engine, ensuring proper ring seal is crucial for performance and longevity. This set is intended for use in performance engines where precise sealing and oil management are key factors. Please note that these rings are not CARB approved and cannot be shipped to California.