Built for demanding heavy-duty HVAC, the Sunair CO-3003A is a York‑style ET210L A/C compressor configured with Tube‑O ports and left‑hand suction orientation. Trusted across Class 6–8 trucks, buses, and off‑highway equipment, the ET210L (York 210) two‑cylinder reciprocating design is a proven workhorse for reliable cab cooling in R134a systems.

Key details

• Compressor family: York 210 (ET210L), Tube‑O fittings
• Orientation: Left‑hand suction (large port on left when viewed from clutch end)
• Refrigerant: R134a
• Oil: PAG 46 (verify final oil charge during installation)

Where it’s commonly used

Designed to replace widely used OE and aftermarket units on Freightliner, Kenworth, Navistar/International, Mack, Peterbilt, Volvo, Western Star, and more using York‑style Tube‑O plumbing with left‑hand suction.

Cross references (partial)

Matches or replaces many references including: Freightliner ABPN83304031; Red Dot RD580613; Road Choice RCACC1000; MEI 5216/5247/5256; Four Seasons 58064/67064; UAC CO 0024GLC; York ET210L/25150; Navistar 1685130C91/2000820C91/2502459C91; Volvo 3949850. Always confirm orientation, ports, and mounting before ordering.

Installation best practices

• Match suction/discharge orientation and Tube‑O sizes to the vehicle lines before installation.
• Flush the system, replace the receiver‑drier/accumulator and the expansion valve or orifice tube, and evacuate to deep vacuum.
• Set the correct total oil charge for the vehicle; add PAG 46 as required after draining/shipping oil.
• Leak‑test, then charge by weight with R134a to OEM spec for optimal performance.

Backed by Sunair’s quality standards, this compressor is a dependable replacement for fleets and service shops that need fast, right‑first‑time A/C repairs.