OTC 206629 Mack Engine Adapter Mounting Plate - Mack Engine Adapter Mounting Plate for 1750A and 1750 diesel engine stands. For Mack engines: V8 1000, E6, & E7 in-line 6 cyl. Mounting plate includes all the necessary hardware and an engine application chart.NOTE: No. 205061 Universal Adapter Plate Assembly is required for use with all plates (Included with 1750A engine stand).