Get the parts when you need
We manufacture our parts in-house
dramatically reducing your wait
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.
Latest News
Thelco Pump of the Day: Worthington Gear Pumps
5GAFMODO & 4GASMODO Worthington Gear Pumps Built for Consistent Flow Today’s Thelco Pump of the Day features two Worthington gear pumps 5GAFMODO and 4GASMODO, designed for positive displacement performance and consistent flow across industrial applications. Right...
Thelco Pump of the Day: Worthington D1012 4x3x6 Pump
Thelco Pump of the Day: Worthington D1012 4x3x6 Pump Worthington Pumps Built for Durability and Maximum Performance Today’s Thelco Pump of the Day features the Worthington D1012 4x3x6, configured with 316 stainless steel fitted components and a full diameter 6.50”...
Thelco Pump of the Day: Worthington D814 1.5x1x6 Pump
Thelco Pump of the Day: Worthington D814 1.5x1x6 Pump Worthington Pumps Built for Compact Performance Today’s Thelco Pump of the Day features the Worthington D814 1.5x1x6, a compact and efficient unit designed for reliable industrial performance in smaller footprint...
![]()
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.


