1979 GMC G3500 Engine: 4.1L L6; AC Cmpr Low Press Cut-Out Switch;. 1979 GMC G3500 Engine: 5.7L V8; AC Cmpr Low Press Cut-Out Switch;. 1979 GMC G3500 Engine: 6.6L V8; AC Cmpr Low Press Cut-Out Switch;.
For 1979 GMC G3500 A/C Accumulator Tube 17693YN Accumulator
4 Seasons Engine Cooling Fan Clutch For 1979 GMC G3500 4.1L L6
UAC HVAC Pressure Switch For 1979 GMC G3500
UAC A/C Accumulator For 1979 GMC G3500
For 1979 GMC G3500 4.1L L6 Engine Cooling Fan Clutch 4 Seasons