Specifications
- Brand
- Mahle OE
- Part #
- 3021373
- UPC
- 027067275158

Mahle Rings Performance Steel Napier 2nd Ring 3.942in x 1.0MM .136in RW Plain Ring Set
$38.90
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Mahle OE Steel Napier 2nd Ring Set. For engine rebuilds.
Key Features
- This set includes Mahle OE performance steel Napier 2nd rings.
- Rings measure 3.942 inches in diameter.
- Ring thickness is 1.0mm.
- Groove width is 0.136 inches.
- Features a Napier hook design on the second ring for improved oil control.
- Constructed from steel for durability.
Product Details
This set includes Mahle OE performance steel Napier 2nd rings, measuring 3.942 inches in diameter with a 1.0mm thickness and a 0.136-inch groove width. These rings are designed for engine rebuilding applications where improved sealing and performance are desired.
The Napier hook design on the second ring helps to scrape oil from the cylinder wall and prevent it from entering the combustion chamber, which can improve oil control and reduce blow-by. The steel construction offers good durability for performance-oriented builds. This set is a plain ring set, meaning it does not include oil control rings or expanders.
Specifications
- Brand
- Mahle OE
- Manufacturer Part #
- 3021373
- UPC
- 027067275158
Frequently Asked Questions
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Mahle Rings Performance Steel Napier 2nd Ring 3.942in x 1.0MM .136in RW Plain Ring Set






