The BT5-4019 compressor is built on the Sanden SD7H15E platform, a high-capacity 7-cylinder design engineered for continuous-duty mobile HVAC systems such as buses and people movers. This unit operates on 12 volts, uses R134a refrigerant, and is factory filled with 300cc of PAG100 oil. The GH head configuration incorporates horizontal slimline pad fittings, allowing reduced hose profile and improved clearance in tight engine compartments common to bus installations. A 119mm 6-groove serpentine clutch ensures reliable belt engagement under sustained load, while the long key shaft and direct-long mount provide OE-correct installation. The 2-wire female Packard connector with diode protection supports proper clutch operation and electrical system protection. Key Features Sanden SD7H15E compressor platform Designed for bus HVAC applications 12V operation with R134a refrigerant High displacement (13 cu. in.) output 119mm 6-groove serpentine clutch GH head with slimline pad fittings Direct-long mount with long key shaft Factory-filled with PAG100 oil Essential Specifications BTRAC SKU: BT5-4019 MEI Part No.: 54019 Sanden Model: SD7H15E Sanden Part No.: 4019 Application: Bus Applications Refrigerant Type: R134a Voltage: 12V Rotation: CW Number of Cylinders: 7 Displacement: 13 cu. in. Mounting Type: Direct Long Shaft Type: Long Key Shaft Head Type: GH Fitting Port Position: Horizontal Fitting Style: Pad w/ Slimline Connections Clutch Diameter: 119mm Number of Grooves: 6 Belt Type: Serpentine Oil Type: PAG100 Factory Oil Charge: 300cc Wire Type: 2-Wire Female Packard #15300002 Diode Protection: Yes Service Information Replacement Clutch Assembly: NSS Replacement Head Assembly: 50000 OEM & Interchange Numbers Freightliner: 22-64073-000 Truck Air: 03-3815 Omega: 20-04019 Texas Truck AC: 300-4261 Sanden: 4019, 4019U1 MEI: 54019 Red Dot: 75R89792 Applications Transit and coach bus HVAC systems Heavy-duty mobile air conditioning 12-volt R134a bus A/C applications
