Mahle Rings 4.0000 X 1.5MM Plasma-Moly Steel Top Ring Moly Ring Set (48 Qty Bulk Pack)

This bulk pack gives you 48 sets of Mahle OE piston rings, each designed for a 4.0000-inch bore with a 1.5mm top ring groove. You're getting plasma-moly steel top rings and moly-filled oil rings, a combination known for its durability and ability to handle the demands of engine rebuilding. This is a substantial quantity, perfect for shops or builders who work on multiple engines or need to stock up for a large project.

Mahle has a long history in engine components, and these rings are built to meet OE specifications. The plasma-moly coating on the top rings is a tough surface treatment that helps reduce friction and wear, especially important in high-performance or heavy-duty applications. The moly-filled oil rings are designed to effectively scrape oil from the cylinder walls, ensuring proper lubrication while minimizing oil consumption and blow-by. This attention to detail in materials and design means you can expect a solid seal and reliable performance once installed.

When you're rebuilding an engine, the piston rings are a critical component for sealing the combustion chamber and controlling oil. This 48-count pack ensures you have plenty on hand for multiple builds or a complex project. Remember that these rings are not CARB approved and cannot be shipped to California. Always refer to your engine's specific service manual for installation procedures and any required break-in processes.