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Thelco Parts and Fabrication
Thelco has a 65+ year history of providing quality Flowserve®*, Worthington®*, 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 SUPPLY MORE THAN PARTS
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 is your go to for in stock Worthington Pumps.
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Thelco Pump of the Day: Worthington D814 6x4x8 with 7.70” T&B Impeller
Thelco Pump of the Day: Worthington D814 6x4x8 with 7.70” T&B Impeller When precision matters, the Worthington D814 6x4x8 steps up with confidence. This robust, all-iron pump features an impeller trimmed and balanced to 7.70 inches—just shy of its maximum capacity...
Thelco Pump of the Day – Worthington D512 1.5x1x4 All Iron
Thelco Pump of the Day – Worthington D512 1.5x1x4 All Iron When reliability and simplicity matter most, the Worthington D512 1.5x1x4 delivers every time. Designed for dependable performance across demanding industrial applications, this pump stands out for its compact...
Thelco Pump of the Day – Worthington D814 4x3x13 All Iron Fitted
Today’s featured pump—the Worthington D814 4x3x13—is a heavy-duty workhorse built with all iron construction. This pump is a reliable solution for high-flow, mid-pressure fluid movement. Whether used in power plants, chemical processing, or general industry, the D814...
BROWSE OUR CATALOG
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.