Product Information
4 way Valve Assembly
Compatible with 2 equipment models
- BMS500-AAM018-1CSXHC Minisplit 18kBTU Multi Zone Condensing Section Max Performance 230V
- BMS500-AAM027-1CSXRC Minisplit 27kBTU Multi Zone Condensing Section Regular 230V
Please note: Hydrowest Products Ltd. is a wholesale distributor and sells exclusively to licensed contractors and trade professionals.
Fast Shipping
In-stock orders ship within 1 business day to anywhere in Canada.
Code-Compliant
All products meet Canadian HVAC and gas code standards.
Wholesale Pricing
Trade pricing for licensed contractors. 40+ years in the industry.
4-way Valve Assembly (Part No. 8733956377) is a Bosch replacement part intended for service and repair of compatible Bosch residential and commercial heat‑pump and HVAC systems. (bosch-homecomfort.com) As a reversing/4‑way valve, it directs refrigerant flow to switch between heating and cooling modes, restoring proper mode change during maintenance or retrofit and simplifying field replacement and commissioning for technicians. (bosch-homecomfort.com)
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