Parts Geek - For 1978 GMC K25 Suburban A/C Limit Switch 13693TBPP. 1978 GMC K25 Suburban 6.6L V8. 1978 GMC K25 Suburban 5.0L V8. 1978 GMC K25 Suburban 4.8L 6 Cyl. Notes: A/C Clutch Cycle Switch -- A/C Clutch Cycle Switch; Accumulator Mounted; Low Pressure.
