454 589 00 03 00 Open Double Hexagon Box Wrench - WS07.00-P-0116B

ENGINE 639 in MODEL 454 

ENGINE 642 

ENGINE 654, 656 

FG 07/Set B 

Purpose: 

An open box wrench bit with a size of 18 mm for threaded connections of injection lines.

Courtesy of MERCEDES-BENZ USA