FITTING(S), Diesel Exhaust Fluid Pump: Description: Descriptions

WARNING: This page is about a different car, the 2011 RAM Pickup and 2011 RAM Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: DEF Quick Connect Service Port Fittings

Courtesy of CHRYSLER LLC

The diesel exhaust fluid pump has three quick connect service port fitting. There is an inlet (3) , backflow (2) , and outlet service port fitting (1) that has an O-ring seal which is serviceable. Each quick connect service port fitting is unique to its location and can not be switched with another service port fitting.

The inlet quick connect service port (1) is equipped with a screen filter.

The backflow quick connect service port (2) is equipped with a screen filter and an inserted orifice.

The outlet quick connect service port (1) is not equipped with a screen filter.

Do not attempt to remove the screen filters or orifice as then are not removable, they can only be cleaned. If the quick connect service port fitting is damaged in any way then the quick connect service port fitting must be replaced.