Overview

The Sunair CO-2009CA is a Sanden-style 7H15 direct-mount compressor engineered for heavy-duty A/C systems. It features a PV8 (8-groove) serpentine pulley and a 119 mm (4.69 in) clutch driven by a 12 V coil for dependable engagement under high belt loads. The GV cylinder head and PT-4008 single-pin coil connector align with widely used hose/manifold and electrical configurations across on-highway and off-highway platforms.

Technical highlights

Built around the proven 7H15 architecture, this unit is specified for R134a refrigerant and PAG 46 oil, supporting current fleet service practices. The direct-mount body minimizes bracket complexity and helps maintain pulley alignment in tight engine bays. A pin-style terminal (quantity 1) streamlines the electrical hookup, while the serpentine drive delivers stable belt wrap and reduced slip. Core specifications include: Direct Mount body, PV8 grooves, 119 mm clutch diameter, 12 V coil, GV head, and serpentine belt interface.

Service and compatibility

CO-2009CA crosses to common service numbers including Sanden 4028/4310/4420, Red Dot 75R89302, and Kysor 1410031 (see full interchange for details). Verify head port style, pulley groove count, clutch diameter, voltage, and connector before installation. Charge with R134a and PAG 46 per OEM procedures, evacuate the system thoroughly, and confirm belt alignment and tension after start-up. Designed for reliable operation in demanding fleet environments, this compressor provides a straightforward path to restore cabin comfort and uptime.