4 way valve assembly

Bosch 4‑way valve assembly (P/N 8733956551) reverses refrigerant flow in heat‑pump HVAC systems to enable heating/cooling mode changes. Packaged as a field‑serviceable replacement, it consolidates valve, actuator, and mounting interfaces to simplify repairs and minimize downtime for certified technicians. Exact P/N 8733956551 was not found in Bosch North America parts documentation; description uses category‑level technical context. (bosch-homecomfort.com)