Description GMC Sanden Compressor Replaces OEM: 94669337 Model: SD7H15HD Application: Chev/GMC Trucks Volts: 12V Clutch Diameter: 119mm No. of Grooves: 7 groove Belt Type: Serpentine No. Comp. Cylinders: 7 cyl Comp. Displacement (ci): 9.5 cu.in. Factory Oil Charge: 240cc Oil Fitting Port Position: Top Fitting Style: GM Sealing Washer Pad Head Type: GT Wire Type: 2 Wire Female Packard #12177071 Replacement Clutch Assy.: 50418 Replacement Head Assy: NSS Mounting Type: SD7 Direct GM Oil Type: PAG100 Product Name: Compressor Refrigerant Type: R134a Rotation: CW O-Ring #1: 0145 O-Ring #2: 0146 Shaft Type: Involute Spline 13X24X0.5 Diode Protection: None   DO NOT POWER PROBE THE COMPRESSOR CLUTCH. YOU WILL BLOW OUT THE DIODE AND THEN THE CLUTCH WON’T WORK AND THE WARRANTY WILL BE VOID A/C COMPRESSOR.