Specifications
- Brand
- Mahle OE
- Part #
- 3021229B
- UPC
- 027067910127

Mahle Rings Perf Napier Steel 2nd Ring 4.250in x 1.0MM .136in RW Plain Ring Set (48 Qty Bulk Pack)
$360.87
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Mahle OE performance Napier steel 2nd ring set. 4.250in bore, 1.0mm thickness. Bulk pack of 48.
Key Features
- This bulk pack contains 48 Mahle OE performance Napier steel second rings.
- Each ring has a 4.250 inch bore diameter.
- The rings are 1.0mm thick.
- The groove width is .136 inches.
- Features a Napier hook design on the second ring for improved oil control.
- Not CARB approved; cannot ship to California.
Product Details
This bulk pack includes 48 Mahle OE performance Napier steel second rings. Each ring measures 4.250 inches in bore diameter, with a 1.0mm thickness and a .136 inch groove width. These rings are designed for performance applications, featuring a Napier hook design on the second ring which helps improve oil control and prevent blow-by.
Mahle is a well-known name in engine components, and these rings are built for durability and consistent performance. The Napier hook design is a notable feature that helps the ring seal against the cylinder wall more effectively, especially under demanding conditions. This specific set is intended for engine rebuilding projects where precise ring sizing and reliable sealing are critical for optimal compression and oil management.
Please note that this product is not CARB approved and cannot be shipped to California. Ensure these rings are compatible with your specific engine build before purchasing.
Specifications
- Brand
- Mahle OE
- Manufacturer Part #
- 3021229B
- UPC
- 027067910127
Frequently Asked Questions
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Mahle Rings Perf Napier Steel 2nd Ring 4.250in x 1.0MM .136in RW Plain Ring Set (48 Qty Bulk Pack)






