Buick Roadmaster AC Flow Restrictors
AC flow restrictors for the Buick Roadmaster span model years 1950–1996 and include orifice tubes, expansion valves, and service valve cores — the components that regulate refrigerant movement through the air conditioning system. Select your year above and we'll show only the ac flow restrictors that fit your Buick Roadmaster. Fitment is checked against our vehicle data for every part listed.
Dorman 902-025 A/C Service Valve Cap Brass R134a Yellow 0.313 in Thread
ACDelco 8634400 Automatic Transmission 3rd Accumulator Check Valve
Representative Photo, actual item may vary
What's here for your Buick Roadmaster
- A/C Orifice Tubes — metering components that control refrigerant flow into the evaporator
- A/C Expansion Valves — thermostatic valves that regulate refrigerant pressure and flow
- A/C Service Valve Cores — small fittings used at service ports for system access and sealing
The widest selection here comes from ACDelco, Four Seasons, GPD, and Universal Air Conditioner, covering a broad range of fitments including universal and kit configurations. Other categories Buick Roadmaster owners shop for: Buick Roadmaster Springs and Suspension Parts, Buick Roadmaster Shocks and Struts and Buick Roadmaster Exhaust Hardware, or browse all Buick Roadmaster parts and accessories.