DEI part number 451M. Please match the pins to your old relay before ordering.

Application Guide:

Pre-wired door lock relay assembly. This great time-saver also comes with resistors for some new-model vehicles. Requires alarm-supplied momentary negative pulses. Plugs into most Directed Electronics systems. (Two 40-amp relays built-in.)
Door Lock Relay Module with Resistors DEI 451M
Compatible with most Directed Electronics systems
3-Pin Plug Interface with DEI system
Will interface with most electric power door lock systems drawing 30A or less.
Both relay-controlled and direct-wired reversing-polarity types.

All items are sold as shown. Since we offer free shipping we will ship the items the cheapest most cost effective way possible.