Mahle Rings Performance Napier THM-13 3.759in x 1.2MM .135in RW Plain Ring Set (48 Qty Bulk Pack)

This bulk pack gives you 48 sets of Mahle OE THM-13 Napier piston rings, each designed for a 3.759-inch bore. The top ring is a 1.2mm thick Napier design, which is known for its ability to scrape oil effectively and maintain a good seal, especially in performance applications. These rings are a plain steel construction, offering solid performance for engine builds.

Mahle is a well-known name in engine components, and these rings are built to meet the demands of performance engines. The Napier hook design on the top ring helps to reduce oil consumption and blow-by, contributing to a healthier and more efficient engine. This 48-quantity pack is ideal for shops or builders working on multiple engines or those who need a good supply of high-performance rings on hand.

Keep in mind that these rings are not CARB approved and cannot be shipped to California. Always refer to your specific engine build requirements and manufacturer specifications to ensure proper fitment and performance.