Mahle Rings Grey Iron BT Second Ring 4.875 x .0935 .192 RW Plain Ring Set

These Mahle OE BT second rings are made from grey iron, a solid material choice for piston rings that need to handle the heat and pressure in an engine cylinder. They measure 4.875 inches in diameter with a thickness of .0935 inches and a depth of .192 inches, featuring a plain face design. This specific design is crucial for proper sealing and oil control during the combustion cycle. When you're rebuilding an engine, getting the piston ring set right is key to ensuring good compression and preventing oil from burning in the combustion chamber. Mahle has been a well-known name in engine components for a long time, and these rings are built to meet the demands of a rebuild.

The plain ring design is a straightforward approach that works well in many applications, focusing on creating a tight seal against the cylinder wall. This helps to keep combustion gases from blowing past the piston, which is essential for engine performance and efficiency. The grey iron construction offers good wear resistance and thermal conductivity, helping to dissipate heat away from the piston crown. If you're in the middle of an engine overhaul and need reliable second compression rings, this set from Mahle OE is a well-built option.