Description Mack/Volvo Sanden Compressor Replaces OEM: 21462260 Model: SD7H15E Application: Mack/Volvo Trucks Volts: 12V Clutch Diameter: 119mm No. of Grooves: 8 groove Belt Type: Serpentine No. Comp. Cylinders: 7 cyl Comp. Displacement (ci): 13 cu.in. Factory Oil Charge: 300cc Oil Fitting Port Position: Horizontal Fitting Style: Rear Pad O-ring, Volvo Off-Set Top Left, Suc over Dis Head Type: WV Wire Type: 2 Wire Female Packard #15300002 Replacement Clutch Assy.: NSS Replacement Head Assy: 50011 Mounting Type: Direct Long Oil Type: PAG100 Product Name: Compressor Refrigerant Type: R134a Rotation: CW O-Ring #1: 0124 O-Ring #2: 0129 Shaft Type: Long Key Shaft Diode Protection: w/ diode   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.