Since 1947, Southwest Oilfield Products, “SWOP” has been an independent OEM manufacturer and supplier of quality fluid-end replacement parts.

Improvements in material technology, failure analysis, machining tolerances,

surface finishes, heat treating techniques, surface coatings, forging

technology, welding practices and assembly techniques are constantly

pursued by our engineering staff for integration into our products. This pursuit

combined with over 65 years of manufacturing expertise places SWOP at the

leading edge in mud pump fluid-end and expendables design.