Texsteam TC 2121-AG – Pump Head for Chemical Injection Pump

TC 2121-AG is a replacement pump head assembly for Texsteam chemical injection pumps. Manufactured in Houston, Texas, this alloy steel head is a direct-fit component for the 1200, 3700, 4300, 5000, and 5100 Series positive displacement chemical injection pumps. The pump head houses the inlet and outlet check valves and forms the high-pressure fluid chamber where precise chemical metering takes place.

Texsteam pump heads are engineered for continuous-duty service in upstream, midstream, and downstream oil and gas applications. Whether the treatment chemical is a corrosion inhibitor, scale inhibitor, methanol, de-emulsifier, or anti-foam agent, the TC 2121-AG head maintains consistent stroke-to-stroke displacement accuracy — essential for pipeline integrity and regulatory compliance. Its alloy steel construction withstands aggressive fluid chemistries and elevated pressures encountered in wellhead and injection skid installations.

Backed by over 80 years of proven Texsteam reliability since 1937, this OEM pump head assembly restores original factory performance. Sourced directly from the Baker Hughes / Dresser Texsteam product line, it is the correct replacement part for maintaining manufacturer-specified flow rates and pressure ratings. Order by part number TC 2121-AG for guaranteed fitment.