Fontaine Fifth Wheel’s 6NWB is a steel fifth wheel assembly that features a lightweight 6000 No-Slack top plate mounted to the Fontaine NWB sliding bracket.

Fontaine says that the 6NWB fifth wheel is about 60 pounds lighter than comparable models. The Fontaine No-Slack technology is designed to allow the lock to automatically self-adjust to trailer kingpin variances for a smoother ride, lower maintenance costs, and longer component life.

The 6NWB is rated at 50,000 pounds vertical load with a drawbar pull rating of 150,000 pounds.