Pollak 11-404 4-Way Round Pin Trailer Wiring Connector Socket - Heavy-Duty Die-Cast Zinc (Vehicle End)

Establish a rugged, weather-resistant electrical connection with the Pollak 11-404 4-Way Round Pin Connector Socket. Engineered specifically for the vehicle end of towing configurations, this heavy-duty 4-pole socket features a non-corrosive die-cast zinc housing rated for 12–24V systems at up to 35 Amps. Complete with an extended concealed-terminal design, unique anti-chafing cable clamp, and a spring-loaded lid, it delivers a shake-free, long-lasting performance for commercial transport and utility fleets.

When it comes to heavy-duty towing, electrical failure on the road is costly. The Pollak 11-404 Heavy-Duty 4-Way Connector Socket is the commercial fleet standard for providing consistent electrical paths between a tow vehicle and a trailer. Ideal for basic light utility trailers, agricultural setups, and heavy vocational vehicles, this 4-pole round pin socket delivers robust, polarized power connections.

Crafted from premium die-cast zinc with a non-corrosive metallic finish, this connector box is engineered to absorb road shocks, heavy vibrations, and environmental impacts. It incorporates an extended exterior housing that fully conceals raw rear terminal blocks, protecting wire splices from direct moisture, dust, and grime. A high-tension stainless steel spring powers the automated snap-shut dust cover, maintaining a clean, dry contact face whenever the trailer plug is uncoupled. Internally, heavy-duty screw terminals readily accept up to #12 gauge wire, while an integrated cable clamp system provides exceptional strain relief and prevents harness chafing.