Specifications
- Brand
- Mahle OE
- Part #
- 3021250B
- UPC
- 027067929471

Mahle Rings Perf Steel Napier THM-13 4.565in x .043in .135 RW Plain Ring Set (48 Qty Bulk Pack)
$406.07
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Mahle OE is known for reliable engine components. This steel Napier ring set features a 4.565in bore and .043in thickness, ideal for performance builds.
Key Features
- This is a bulk pack containing 48 sets of piston rings.
- Features a 4.565-inch bore size and a .043-inch ring thickness.
- Includes a Napier hook on the second ring for improved oil control and blow-by reduction.
- Constructed from steel for good durability in performance applications.
- This is a plain ring set, ready for installation.
Product Details
Mahle OE is a well-known name for dependable engine parts, and this steel Napier ring set continues that tradition. Designed for performance applications, these rings feature a 4.565-inch bore and a .043-inch thickness, with a Napier hook design on the second ring. This bulk pack includes 48 sets, making it a solid option for engine builders or shops working on multiple projects.
The steel construction offers good durability for demanding use, and the Napier hook on the second ring helps with oil control and blow-by reduction, especially under higher cylinder pressures. This updated design aims for improved sealing and performance compared to older styles. They are a plain ring set, meaning they are ready for installation without special coatings.
Specifications
- Brand
- Mahle OE
- Manufacturer Part #
- 3021250B
- UPC
- 027067929471
Frequently Asked Questions
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Mahle Rings Perf Steel Napier THM-13 4.565in x .043in .135 RW Plain Ring Set (48 Qty Bulk Pack)






