904 or 727 SBM Inspection Cover?
The one you have pictured is a 727 The small plate is for a 904. 727's are different for different diameter converters. Look how wide the 727 I have pictured the arc is for the converter bolts to travel without hitting.
The one you have pictured is a 727 The small plate is for a 904. 727's are different for different diameter converters. Look how wide the 727 I have pictured the arc is for the converter bolts to travel without hitting.