Heavy-Duty 7H15 Performance for Fleet Uptime

The Sunair CO-2187CA is a Sanden-style 7H15 direct-mount A/C compressor engineered for heavy-duty trucks, buses, and off-highway equipment. It integrates a PV8 8-groove serpentine pulley with a 119 mm (4.69 in) clutch and a 12 V magnetic coil to match common North American truck electrical and belt-drive standards. The MDA/M cylinder head and 2-pin PT-4054 pin-type connector align with widely used HD hose manifolds and harnesses, streamlining installation and service. This new unit is assembled with clutch and pulley, originates from Malaysia, and uses R134a refrigerant with PAG 46 oil for compatibility with modern fleet maintenance practices.

Fit, Function, and Service Compatibility

The direct-mount body style supports OEM bracket geometry for a clean drop-in on many on-highway and off-highway platforms. The PV8 pulley provides strong belt engagement under load, while the 12 V coil ensures dependable clutch engagement in standard truck electrical systems. The PT-4054 two-pin terminal simplifies wiring and diagnostics, and the MDA/M head interfaces with common manifold configurations to reduce install time. For best results, confirm key specifications—mount style, pulley grooves and diameter, head type, voltage, and connector—prior to ordering. Charge with the correct amount of PAG 46 oil and R134a, and follow best practices such as replacing the receiver-drier and evacuating the system to protect the new compressor.