Mahle Rings Perf Gas Nitride Steel 4.100in x .043in .157 RW Bulk Plain Ring Set (48 Qty Bulk Pack)

This is a bulk pack of 48 Mahle OE Performance Gas Nitride Steel Piston Ring Sets, designed for a 4.100-inch bore with a .043-inch ring thickness. These rings are built for gasoline engines and feature a nitride coating for improved durability and wear resistance. This large quantity pack is ideal for shops or builders who frequently work on engines requiring this specific bore size and ring configuration.

The nitride treatment on these steel rings creates a harder surface, which helps them stand up better to the heat and friction found in performance gasoline applications. This improved wear resistance can lead to longer ring life and more consistent sealing over time. The .043-inch thickness is a common specification for many performance builds, offering a good balance of sealing and reduced drag. Because these are sold in a bulk 48-pack, they are a practical choice for engine rebuilders who need a consistent supply of high-quality rings for multiple projects or for engines that use multiple sets of rings.

When rebuilding an engine, ensuring proper ring seal is critical for compression, oil control, and overall engine performance. These Mahle rings are well-made and designed to fit right into the piston grooves for a reliable installation. Please note that this product is not CARB approved and cannot be shipped to California. Always refer to your engine's specific service manual for installation procedures and recommended clearances.