BT5-4250 Heavy-Duty A/C Compressor – SD7H15SHD, 24V, 8-Groove

The BT5-4250 A/C compressor is built for heavy-duty mobile air-conditioning systems that require consistent cooling during extended operation. Because it uses the proven SD7H15SHD compressor platform, it delivers high displacement and stable performance under load.

In addition, this compressor operates on a 24-volt electrical system and uses an 8-groove serpentine clutch with a 152 mm diameter. As a result, belt engagement remains smooth while torque transfer stays consistent in high-demand environments.

Furthermore, the horizontal Navistar special-pad fitting design supports clean hose routing and secure sealing. Therefore, leak risk is reduced while installation accuracy improves. The direct-long mounting configuration also helps maintain proper alignment in OE brackets.

Overall, the BT5-4250 is well suited for fleet, vocational, and off-road equipment that depends on dependable HVAC performance in harsh operating conditions.

Specifications

General

• BTRAC Part Number: BT5-4250

• Compressor Model: SD7H15SHD

• Application Type: Heavy-Duty Mobile HVAC

• Refrigerant Type: R134a

Mounting & Head

• Mounting Type: Direct Long

• Head Type: 4095

• Fitting Style: Navistar Special Pad

• Fitting Port Position: Horizontal

Clutch & Drive

• Clutch Diameter: 152 mm

• Clutch Grooves: 8

• Belt Type: Serpentine

• Shaft Type: Long Key Shaft

Electrical

• Voltage: 24 V

• Wire Type: 2-Wire Deutsch DT04-2P-E

• Diode Protection: None

Internal

• Number of Cylinders: 7

• Compressor Displacement: 13 cu.in.

• Factory Oil Charge: 180 cc

• Oil Type: PAG 100

• Rotation: Clockwise (CW)

Service Parts

• Replacement Clutch Assembly: NSS

• Replacement Head Assembly: NSS

• O-Ring #1: 0165

• O-Ring #2: 0166

Interchange Numbers

20-04250, 4250U1, 54250, 75R90394

Applications & Notes

• Heavy-duty trucks and vocational equipment

• Fleet and off-road machinery

• Mobile HVAC systems using SD7H15SHD compressors

However, always verify mounting configuration, belt alignment, electrical connections, and oil requirements before installation to ensure proper system performance.