MSC04316 Boss Vehicle Side 13-Pin Wiring Harness 2008+ 4 Relay

Boss Vehicle Side Wiring Kit # MSC04316. This is the newest harness with the 4 sealed relays, this replaces part # MSC08001 with the 5 relays.

This is the newest version of this harness. It is used on both v-plows and straight blades on vehicles from 2008 and newer. There are 13 pins. 

This harness also came in Universal Wiring Kit # MSC15100B, MSC25000 and STB15103.

Here is a service bulletin on the update.