I GM8 2 I 234 1978 79 HM HR HEATER 84 DEFROSTER SYSTEM I CASE Hepter 4 8 857 2 SEAL Htr Core Pipes 4 4 4 8 854 3 cons www 4 4 4 q qs4 4 WASHER Spl Sealing 4 N S 5 CLIP Wirelletainsr 4 4 4 N S 8 WASHER Flat i 8 929 7 NUT Hex 20 8 8I 5 Q FAN Htr Motor 8 857 9 MOTOR Heater 8 855 I0 HARNESS Engine Wiring 2 525 1 SCREW T p 20 9 x 1 8 977 I2 WASHER Flat 8 929 13 RIVET se Tap Screw 6 20 x J N S 14 OUTLET ASM Htr Defroster 9 779 15 SCREW Tap J 14 x 8 877 18 NUT Pu h On Vu 9 787 17 RESISTOR Htr Blower 8 855 18 HARNESS Htr Wiring 8 852 19 NUT Spring I4 8 921 20 CASE Heater 8 854 2I CONTROL ASM Honor 8 849 22 SWITCH Htr Blower 8 852 29 CABLE Defroster Control Use Klt 9 787 24 CABLE Temp Control Use Kit 787 25 SCREW Tap 10 16 x 8 977 28 SEAL Defrott r Outlet 8 857 GM PARTS DIVISION GENERAL MOTORS CORPORATION CHEVROLET 10A 9 78 M1 8 000 GROUP