Mahle Rings CP20 Oil Ring Expander 4.650in Bore x 3.0MM Plain Ring Set (48 Qty Bulk Pack)

Mahle is a well-known name in the automotive industry, particularly for their engine components. This product is a set of CP20 oil ring expanders, designed for a 4.650-inch bore with a 3.0mm plain ring size. This is a bulk pack containing 48 pieces, making it a practical choice for engine rebuilding shops or for those undertaking multiple engine projects.

These expanders are crucial for ensuring the oil control rings function correctly. They help maintain proper tension against the cylinder wall, which is key to preventing oil from entering the combustion chamber. The 3.0mm plain ring specification is a common size, and the 4.650-inch bore compatibility means they fit a range of larger displacement engines. Having a bulk pack like this on hand can save time and ensure you have the necessary parts for a complete engine overhaul.