DEF Tank

4700 dm 12.02.001

Engines that are compliant with EPA10 and newer regulations are equipped with a DEF tank located on the driver's side of the vehicle behind the battery box or forward of the fuel tank. See Fig.. The DEF tank has a 19 mm filler neck inlet that prevents the hose from a diesel outlet from being inserted, and has a blue cap for easy identification.

  1. DEF Fill Cap

Fig. 1, DEF Tank Location (Western Star 5700 shown)

Note:
Parent topic: Diesel Exhaust Fluid and Tank, EPA10 and Newer Engines
Document Number: 0000118293
Manual Publication Date: 2024-05-13
Topic Publication Date: 2024-05-16