Usage:
3406B ( 7FB, 4MG ) And 3406B (PEEC) ( 8TC ) Truck Engines
Description of Change: A new ring retainer and O-ring seal are used in the BrakeSaver engine oil lines group on 3406B and 3406B (PEEC) Truck Engines. The location of the new ring retainers and O-ring seals are shown in the illustration. The new O-ring seal is made of a more durable material than the former O-ring seal. The new ring retainer helps minimize the relative movement between the tube and the elbow when the BrakeSaver is activated. The new ring retainer and O-ring seal will help prevent oil leakage.
Adaptable To: The new 5P5846 O-ring Seal is a direct replacement for the former 9M9647 O-ring Seal in the 9N666 BrakeSaver Engine Oil Lines Group on 3406B and 3406B (PEEC) Truck Engines. The 9Y1375 Ring Retainer is added to the 9N666 BrakeSaver Engine Oil Lines Group. Two 5P5846 O-ring Seal and two 9Y1375 Ring Retainers are used in each oil lines group. The new O-ring seal and ring retainer are in effect with 3406B Truck Engines 7FB97745, 4MG1 and 3406B (PEEC) Truck Engine 8TC1400. The new O-ring seal and ring retainer are adaptable to BrakeSaver engine oil lines group on 3406 Truck Engines 92U1-Up, and all earlier 3406B and 3406B (PEEC) Truck Engines.
Location of the new 5P5846 O-ring Seals and 9Y1375 Ring Retainers in the 9N666 BrakeSaver Engine Oil Lines Group.