(303) 761-7616 thelco.parts@thelco.com

Thelco Parts and Fabrication

Thelco has a 65+ year history of providing quality replicated Flowserve®*, Worthington®*, and after-market pump parts from our Englewood, Colorado warehouse. With a massive lineup of Flowserve®* & Worthington®* inventory and fabrication are done on-site, Thelco has over 4,500 parts ready to ship domestically and internationally within 24 hours. Efficient order fulfillment to any global location is crucial to our customers’ success. We prioritize maintaining an extensive inventory onsite to ensure availability and on-time delivery.


Thelco can also supply whole pumps and unitized pumps on a fabricated steel base. These can be supplied as motor-driven with coupling and coupling guards. We offer precision pump builds and consulting from our senior engineer. Call us and we can help select the pump for your application based on system and fluid conditions. In addition, we have a machining and repair facility on-site and would welcome the opportunity to be your repair center.

Thelco now offers to finance! Click here to explore low, fixed-rate term equipment financing options: https://quickfi.com/thelco/


Comprehensive list of replacement parts for Worthington®* and Flowserve®* pumps manufactured by Thelco.

GR Pumps

GR Worthington gear pumps utilize a Herringbone gear design to eliminate side forces.

D-800 Series Pumps

The D-800 series of pumps is versatile and reliable.  Available in mulitple configurations to meet site requirements.

LR Pumps

Worthington LR horizontal split case pumps covers a broad range of applications from 200 up to 10,000 gpm.