Choosing a return flow splitter valve helps manage fuel or hydraulic return flows, improving efficiency and system balance. It evenly distributes fuel to both left and right tanks, eliminating the need for a crossover line. It's made of durable zinc die-cast and features a convenient tee configuration for easy plumbing to each. As leaders in the industry, we're taking a giant step forward to help you control expenses. We're. Sale!Return Flow Splitter 060071 High Flow. Navistar, Volvo, Mack, Peterbilt, And Western Star. 1035GT, Velvac 060071, 2252-2, 801092. 1035GT. Mack offers a wide range of genuine parts, including engine, exhaust, transmission, cab, and body parts and accessories.