S5 Coupler Locks: The best security solution for your trailer. Locks are custom tailored to each trailer coupler's design. Most S5 lock bodies are built with 1/4" structural steel, powder coated using Sherwin Williams powder, and secured with a puck-style lock.
LCS005D - Ram / TxTrail 2-5/16 in A-frame This lock is designed for Ram and TxTrail 2 5/16" a-frame couplers. This lock will also fit the generic versions of these couplers. Works with all frame sizes. Puck Lock is included in price.