Product Overview
The Sealco FM3940-1 Wiring Harness Assembly is a durable front main trailer harness designed to provide reliable power and lighting connectivity between the tractor and trailer. It features a 14-inch main section with two 84-inch leads, ideal for front-end electrical distribution on semi-trailers and vocational trailers. Built to withstand vibration, moisture, and road debris, this harness ensures consistent electrical performance in demanding fleet environments.
Commonly used in Sealco ABS and lighting systems, this harness simplifies installation and reduces downtime with pre-terminated connectors and color-coded wiring for quick identification.
