Overview

The Sunair CO-2043CA is a new SD5H14 Sanden-style A/C compressor designed for heavy-duty air conditioning and heating systems. It combines an ear-mount body with a 12 V clutch and a PV7 pulley measuring 119 mm (4.69 in) to support serpentine belt drives. The unit is oil filled and shipped with PAG 46 for immediate service readiness and is engineered for R134a refrigerant. It features a gauge line diameter of 1.83 in (46.55 mm), aligning with common heavy-duty port specifications. Cross-references include Sanden 4514, 6629, and 6669, with common OEM equivalents such as 204867 for straightforward replacement in compatible systems.

Fitment and Key Specs

Built on the proven SD5H14 architecture, this compressor uses an ear mounting configuration for reliable alignment and load distribution. The PV7 pulley supports serpentine belt systems, while the single bullet terminal simplifies clutch activation in 12 V circuits. Core specifications include: R134a refrigerant compatibility, PAG 46 oil charge, 119 mm clutch/pulley diameter, and 1.83 in (46.55 mm) gauge line diameter. It supports VMRS code 001-001-002 for accurate maintenance coding and fleet recordkeeping. Designed as a direct replacement where the above specifications match, the CO-2043CA helps restore cooling performance with minimal rework.

Service Notes

Verify pulley diameter (119 mm), PV7 belt compatibility, ear-mount footprint, and 12 V electrical requirements for proper integration. The unit arrives oil filled with PAG 46; confirm total system oil balance and R134a charge per the vehicle manufacturer’s procedure when commissioning the system.