Auto AC Conditioning Compressor For Excavator Caterpillar 7H15 3949671 394-9671

Caterpillar 7H15 Excavator A/C Compressor Overview

The air conditioning compressor in the Caterpillar 7H15 excavator is a heavy-duty component designed to provide reliable cooling in demanding construction environments. It typically features a robust piston or swash-plate design, optimized for high-capacity refrigerant circulation and long service life.

Key Parameters:

1. Type:
   • Belt-driven, reciprocating piston compressor 
   • May include variable displacement for efficiency (depending on model year).
2. Refrigerant:
   • R134a (standard for most Caterpillar heavy equipment).
3. Displacement Volume:
   • ~170–190 cc/rev
4. Lubrication:
   • PAG oil (Polyalkylene Glycol, compatible with R134a).
   • Oil capacity: ~200–250 ml (check service manual).
5. Elect

6.    rical Specifications:

   • Clutch Type: Electromagnetic (24V DC, standard for heavy equipment).
   • Clutch Coil Resistance: ~4.0–6.0 ohms (verify with multimeter).
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