Mahle Rings Perf Oil Ring Expander 4.750in x 2.0MM GNS NHRA Pro Stock Ring Set (48 Qty Bulk Pack)

This is a bulk pack of 48 Mahle OE performance oil ring expanders, specifically designed for NHRA Pro Stock racing engines. These expanders work with the oil ring to maintain proper tension against the cylinder wall, which is crucial for controlling oil consumption and ensuring optimal engine performance under extreme conditions. They are built to handle the high demands of professional racing applications.

These expanders are constructed from durable materials to withstand the intense heat and pressure found in Pro Stock engines. The 4.750 inch diameter and 2.0mm width are precise dimensions critical for proper fitment and function within the specific ring groove of these high-performance pistons. Mahle OE is known for producing well-built engine components, and this bulk pack offers a cost-effective solution for engine builders who need a significant quantity of these specialized parts.