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• S509-451 OBSOLETE

• Upper Back Assembly

Bard part S509-451 is the OEM Upper Back cabinet assembly used on select Bard wall-mounted packaged units, where it helps complete the rear upper cabinet section, maintain proper panel fit-up, and protect internal components from weather and jobsite damage. This is a factory-correct replacement intended to match original mounting geometry and clearances, which is critical for keeping the cabinet sealed and aligned around the condenser and blower compartments. As with any cabinet component replacement, confirm your unit model and serial number against the Bard parts list for your specific series before ordering to ensure proper fit.