112 589 03 40 00 Retaining lock - WS03.00-P-0037B

FG 01/03/05/27/Set B 

ENGINE 112, 113, 137, 155, 156, 157, 272/979, 273, 276, 278, 629, 642 

Use: 

Retaining lock for holding crankshaft via ring gear for flywheel or clutch plate.

Fig 1: Identifying Retaining Lock (112 589 03 40 00)

Courtesy of MERCEDES-BENZ OF NORTH AMERICA.