How many types of wiper arms are in use on North American roads?
The following wiper arm types are in use: Estimated Percentage Of Cars 1) Small J Hook Arms 60.0% 2) Small Pin Arms (3/16″ pin) 25.0% 3) All Large J Hook Arms (Short, Reg., Long) 7.5% 4) Large Pin Arms (1/4″ pin) 2.5% 5) Dimple Bayonet 2.0% 6) 2 Screw Bayonet 1.5% 7) Female Pin Arms 1.0% 8) Others (Wrist action, Roc-Lock, Reverse hook) 0.5% Total 100%
