Parts list: № Number Qty Name Options 1 AR50411 1 Wiring Lead 120V 2 R54123 1 Adapter Fitting 3 U13639 1 O-Ring 4 RE42139 1 Heating Element INCLUDES R206883; SUB FOR RE531603 OR RE531603 5 R206883 1 Washer Not Illustrated Next page: ST804449 2699 Engine Coolant Heater Fittings ST120876 2602 Engine Coolant Heater PICT-2600.1 2600 Engine Coolant Heater 6090HFG84