This is a new old stock unit that I acquired with some other Parts. This Hydromax Brake Booster (Fits Ford Trucks) – Part # 2771293, 2771371

Restore optimal braking performance in your Ford truck with this Hydropower Brake Booster. Designed for Ford trucks equipped with a 1-wire flow switch on the back.

It is guaranteed to be in working condition. Or return it within 30 days for your money back.