Parts list: № Number Qty Name Options 1 AR50411 1 Wiring Lead 2 R54123 1 Adapter Fitting 3 U13639 1 O-Ring 4 R47693 1 Gasket (SUB R206883) 5 RE42139 1 Heating Element (110 V) 6 RE42138 1 Coolant Heater (SUB AR50411 AND RE505887) 7 RE505887 1 Coolant Heater (ALSO ORDER AR50411) 8 RE508185 1 Fitting Next page: 20-75 ENGINE COOLANT HEATER (220 VOLT) (NOT USED IN U.S. AND CANADA)(ENGINE SERIAL NO. -XXXXXX) [01E04] 20-76 ENGINE COOLANT HEATER (220 VOLT) (NOT USED IN U.S. AND CANADA)(ENGINE SERIAL NO. XXXXXX- ) [01E05] 20-78 WATER PUMP [01E06] 20-8 CYLINDER HEAD AND VALVES (6466A) [01B19] 20-80 WATER PUMP REPAIR KIT (6466) [01E08] 20-73 ENGINE COOLANT HEATER (110 VOLT) (ENGINE SERIAL NO. -XXXXXX) [01E02] 20-72 ENGINE OIL COOLER (6466AR) [01E01] 20-70 ENGINE OIL PUMP (LATE DESIGN) (CRANKSHAFT DRIVEN) (6466) [01D24] 20-69 ENGINE OIL PUMP INTAKE (LATE DESIGN) [01D23] 20-66 REPLACEMENT ENGINE OIL PUMP [01D22]