The Red Dot Air Operated Water Valve 72R6421 - RD-5-8857-1P features a 5/8" x 5/8" hose. This model is designed for Kenworth all models year 1987-00 OEM Part No.: MA10850, MA1085, RD5-5138-0 and Mack All series with OE # 29RD29301, 4379- RD588571 year 1983-00 and R, DM year 1980-96.
- Part No.: 72R6421
- Red Dot Factory No.: RD-5-8857-1P
- 5/8" x 5/8" hose