OTC 218099 Cummins Engine Adapter Mounting Plate - Cummins Engine Adapter Mounting Plate for 1750A and 1750 diesel engine stands. No. 218099 – For Cummins "C" series 8.3L in-line 6 cyl. engines. 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).