Part Notes: Attaches to back side of water pump. Slides into the 8555. Orings are W704593-S100. Less additional nipple between brackets., 5.4L; With additional water port at rear of engine, BEFORE 10-OCT-2001
Part Notes: Attaches to back side of water pump. Slides into the 8555. Orings are W704593-S100. Has additional nipple between brackets., 5.4L; With additional water port at rear of engine, FROM 10-OCT-2001