GM GENUINE 1531055
Fits Evaporator Fitting O-Ring; R-1234YF & R-134A; 19 mm OD X 11 mm ID, 1/2" Diameteror Compressor Hose Seal; R-1234YF & R-134A; 19 mm OD X 11 mm ID, 1/2" Diameteror Evaporator Tube O-Ring; Air Conditioning Front Automatic/Auxiliary Control(CJ2), Front; Dual Zone Climate Control with Manual Controls (blue/red dials only), Auxiliary Heater, Rear (C36), Rear Auxiliary A/C (C69); R-1234YF & R-134A; 19 mm OD X 11 mm ID, 1/2" Diameteror Expansion Valve O-Ring; Air Conditioning Front Automatic/Auxiliary Control(CJ2), Front; Dual Zone Climate Control with Manual Controls (blue/red dials only), Rear Auxiliary A/C (C69); R-1234YF & R-134A; 19 mm OD X 11 mm ID, 1/2" Diameter
ACDELCO 1531101
Fits Accumulator Tube O-Ring; 25mm OD X 17mm ID, 3/4" Diameter; 3/4"or Compressor Hose Seal; Front; Dual Zone Climate Control with Automatic Controls (you can set a specific numeric temperature) (CJ2), Front; Dual Zone Climate Control with Manual Controls (blue/red dials only), Rear Auxiliary Heater (C36), Front Electronic A/C Controls (C67), Rear Auxiliary A/C (C69); 25mm OD X 17mm ID, 3/4" Diameter; 3/4"or Compressor Hose Seal; Front; Dual Zone Climate Control with Automatic Controls (you can set a specific numeric temperature) (CJ2), Front; Dual Zone Climate Control with Manual Controls (blue/red dials only), Rear Auxiliary A/C (C69); 25mm OD X 17mm ID, 3/4" Diameter; 3/4"or Accumulator Hose Seal; 25mm O.D. X 17mm I.D., 3/4" DIA; 3/4"