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Expert Service We have field service teams of individuals specializing in the maintenance and repair of our equipment on site. Truck Shop and Parts We offer a wide range of vendor parts for all makes of trucks and heavy equipment to handle your parts and service needs. Transmissions Our customers rely on United Engines to fulfill their on-highway, off-highway and industrial transmission needs. United Engines Engine Rebuilds We take great pride in our work and make certain that each component is built to stand the test of time and hazardous conditions. United Holdings UEM Remanufacturing Our quality remanufacturing team receives equipment, disassembles it, assess damage, replaces parts, and rebuilds it until it's like new. UEM New Equipment We design and build multiple types of equipment, including custom builds by our team of experienced engineers. Custom Compression We design and build custom air and has compression packages for your most demanding project needs.


United Holdings LLC is a collective of some of the most established and trusted companies supporting the oil and gas services, power generation and transportation industries. We work tirelessly to provide unmatched access to custom equipment, reliable products and unrivaled customer service.

United Holdings distributes and services engine and transmission products, as well as manufactures oilfield service equipment, including hydraulic fracturing equipment, gas compressors, pump jack power packages, cementers, blenders and nitrogen pumpers. Our customers include oilfield service companies, oil and gas operators and producers, compression service companies and transportation companies.

Headquartered in Oklahoma City, Oklahoma, United Holdings LLC has operated as a subsidiary of Kirby Corporation since April 2011.


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