Specifications
- Brand
- Mahle OE
- Part #
- 3021343B
- UPC
- 027067206015

Mahle Rings Perf Steel Napier 2nd Ring 4.275in x .043 .135in RW Plain Ring Set (48 Qty Bulk Pack)
$273.31
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Mahle OE Steel Napier 2nd Ring Piston Ring Set. Bulk pack of 48 rings for engine builds. Not CARB approved.
Key Features
- Fits standard 4.275 inch bore sizes.
- Features a Napier style second ring for improved oil control.
- Ring thickness is .043 inches and depth is .135 inches.
- Constructed from plain steel for durability.
- Comes in a bulk pack of 48 rings.
- Not CARB approved; cannot ship to California.
Product Details
Mahle OE is known for making reliable engine components, and this bulk pack of steel Napier 2nd ring piston rings is no exception. These rings are designed for engine rebuilding projects where you need a solid, well-made part. The Napier style second ring is a popular choice for its ability to help control oil and maintain a good seal, especially in performance applications.
This set includes 48 rings, each measuring 4.275 inches in diameter with a thickness of .043 inches and a depth of .135 inches. The plain steel construction means they are built to handle the demands of an engine. They fit right into standard ring grooves, making them a straightforward component for your engine build. Remember, these are not CARB approved and cannot be shipped to California.
Specifications
- Brand
- Mahle OE
- Manufacturer Part #
- 3021343B
- UPC
- 027067206015
Frequently Asked Questions
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Mahle Rings Perf Steel Napier 2nd Ring 4.275in x .043 .135in RW Plain Ring Set (48 Qty Bulk Pack)






