API Standard Connecting Rod for Oilfield Triplex Drilling Mud Pump Assembly Description: 1. What's connection rod for mud pump? The connection rod for mud pump, is used for connecting power end of mud pump to fluid end of mud pump. The big end of the connection rod is installed to the craneshaft assembly of the mud pump, and the small end of the connecting rod will be installed to the crosshead of the mud pump. 2. What's the feature of the connection rod for mud pump? Mud