1R111C-4C3 - Webster - Single Stage Pump

The Webster 1R111C‑4C3 Single‑Stage Fuel Oil Pump is a dependable R‑Series pump designed for smooth, consistent fuel delivery in residential and light commercial oil‑fired heating systems. Operating at 1725 RPM, this single‑stage pump is ideal for applications where steady pressure and reliable performance are required without the complexity of a two‑stage unit.

The 1R111C‑4C3 features counter‑clockwise (CCW) rotation with left‑side nozzle location, allowing for straightforward compatibility with a wide range of oil burners. It is rated for up to 150 PSI and is commonly used in systems requiring lower flow rates with stable pressure control. Built with Webster’s proven internal components, this pump delivers durability and long service life in continuous‑duty heating environments.

As part of Webster’s trusted R Series, the pump is engineered for easy installation, dependable operation, and reduced maintenance. Its compact, service‑friendly design makes it a popular choice for both replacement and new installations where a single‑stage oil pump is specified.

Trusted by HVAC professionals, the Webster 1R111C‑4C3 offers reliable fuel delivery, proven performance, and long‑term value for oil‑fired heating systems.