At Next Gen Diesel, the 4R100 valve body is one of our proudest achievements. This is a valve body with many unique challenges that required extensive research and understanding to address and resolve. We are proud to progress forward with a plurality of powerful, durable and predictable 4R100 valve bodies that improve shift time, enhance lockup quality/sensation and demand consistency while attacking all forms of crossleakage. All of our Formula One Valve Bodies are backed by a lifetime warranty!
