The Harloff-41020004 Replacement Lock Cam is a critical internal security component engineered specifically for Harloff VLT Series (Value Line) medical and medication carts. Fastened directly to the rear of the cart's central key lock cylinder, this heavy-duty metal cam rotates to actuate the cart's internal locking bar mechanism, effectively securing all drawers simultaneously. Constructed from durable, wear-resistant hardened steel alloy, the 41020004 cam ensures smooth lock operation and reliable long-term security for narcotics, pharmaceuticals, and high-value clinical supplies. It serves as an exact OEM replacement part, enabling hospital biomedical technicians and facility maintenance teams to rapidly restore proper locking function to VLT Series carts without requiring complete lock block replacements.