Chassis assembly below

Chassis assembly (Part No. 8733956840) is a replacement structural sub‑assembly for Bosch HVAC indoor units and service parts applications, providing a rigid mounting platform and organized routing for electrical and mechanical components. Designed for straightforward field replacement, it improves technician access, secures key modules and controls, and preserves alignment and serviceability within compatible Bosch systems. I searched Bosch Home Comfort and Bosch Clima sites but did not locate an official parts listing for 8733956840. (bosch-homecomfort.com)