3119013017CH is a two-piece bearing shell replacement for Rolair K30 and K35 pumps, sold as an OEM Rolair part and shipped with two bearing inserts. It is designed for use with Rolair’s K30/K35 pumps that use connecting rod 311SL11005CH, and the part is identified in Rolair’s catalog as bearing shell 3119013017CH. The kit is intended for new K30 and K35 pumps and weighs about 0.12 lb, making it a compact, straightforward replacement when servicing the pump’s bearing assembly. This part is specifically for the K30 and K35 models and should be ordered with the 311SL11005CH connecting rod to ensure proper fitment.
