PINS A wrist pin, also known as a piston pin, is an important component in an internal combustion engine. It is the critical link between a piston and connecting rod, and is continually exposed to extremely high loads in alternating directions and it is also subjected to shearing and bending forces from the connecting rod. Taking all these parameter in consideration, CP-Carrillo offers a wide variety of wrist pins to fit different applications and uses. Below is a selection of different materials and treatments available