The Pro-Xtreme design ensures superior strength while keeping weight to a minimum—critical for maintaining performance at high engine speeds

This handy little part installs just like the factory piece but is secured with a zip tie or safety wire to ensure it will not come out under boost

Designed for competitive motorsport use

Engineered to replace BMW part numbers #11248623419 and #11247589671

The vent permits air to escape as the fuel cell is filled and permits filtered air to enter when fuel is getting consumed

CP Carrillo Heavy Duty Wrist Pins Dimensions:.866" x 2.500" x .200" The Pro-Xtreme design ensures superiorStraight walled, 9310 steel wrist pin with chamfered edge The wrist pin, or piston pin, is a crucial component of an internal combustion engine as it serves as the vital connection between the piston and connecting rod. It endures high loads in varying directions, as well as bending and shearing forces from the connecting rod. To cater to high stress, high power applications and uses, CP Carrillo offers heavy duty wrist pins that take these factors