Specifications
- Brand
- Mahle OE
- Part #
- 3021363
- UPC
- 027067275042

Mahle Rings Performance Steel Napier 2nd Ring 3.791in x 1.0MM .136in RW Plain Ring Set
$41.22
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Mahle OE Steel Napier 2nd Ring Set. Includes a plain steel Napier 2nd ring for improved sealing.
Key Features
- Includes one plain steel Napier 2nd ring.
- Designed for pistons with a 3.791 inch bore.
- Features a 1.0mm ring groove width.
- The Napier hook design improves sealing against the cylinder wall.
- Not CARB approved; cannot ship to California.
Product Details
This set includes a plain steel Napier 2nd ring, designed to fit pistons with a 3.791 inch bore and a 1.0mm ring groove. The Napier hook design on the second ring helps it seal better against the cylinder wall, especially during the power stroke, by allowing oil to flow behind it and create a more consistent seal. This is a well-built component for engine rebuilding.
Mahle OE is known for making solid engine parts. This ring set is a popular choice for many engine builds where reliable performance is key. It's important to note that this part is not CARB approved and cannot be shipped to California.
Specifications
- Brand
- Mahle OE
- Manufacturer Part #
- 3021363
- UPC
- 027067275042
Frequently Asked Questions
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Mahle Rings Performance Steel Napier 2nd Ring 3.791in x 1.0MM .136in RW Plain Ring Set






