The Largest Independent Remanufacturing Facility in California

UTX Team Photo

United Transmission Exchange started as a small family business in 1975.  It has grown into the largest independent remanufacturing facility in California due mainly to our team approach –  we have always considered our customers a part of our team, which means “We’ve Got Your Back”.  We promise to do everything we can to get your vehicle back on the road as fast as possible.

We have more than 250 combined years of technical expertise under our roof – so we can provide excellent product quality and offer outstanding customer service. We understand that time is money and that it’s very important to get you on the road and back to business as quickly as possible.

UTX Remanufactured Transmissions

We deliver the best remanufactured Allison transmission available

Our technicians are the most knowledgeable in the business and are free to select the best parts and proudly craft each transmission by hand.

UTX Facility

Our large facility means we can get the
job done faster

Our facility spans more than three acres and we can service 10 vehicles at a time in our 42,000 sq. ft. facility.


UTX technicians are the best and most experienced in the business
As a UTX customer you are part of our team – our loyalty is ONLY to you
All backed by our UTX “We’ve Got Your Back” warranty
Being independently owned, UTX does what’s best for you – we choose the best parts and rebuild techniques for the best final product
UTX pricing is competitive

We get you back on the road and back to business
faster than anyone else.

UTX Warranty

We stand behind all the work we do with our UTX
“We’ve Got Your Back” Warranty

Our founder - Tommy Mason's Legacy

"We've got your back!"

Our unique team approach comes from Tommy Mason, a pro-bowl running back who was the #1 Draft Pick in the NFL in 1961. Tommy owned United Transmission Exchange and he knew that the company was a team – and to win we had to support one another, no matter what the challenge. Because of Tommy’s inspiration, everyone at UTX understands that “We’ve Got Your Back” is one of the most important aspects of how we operate.

The UTX team includes our employees, and our customers, and like Tommy, we believe that your challenge is our challenge. Whether you’re calling us for a major problem like a failed transmission, or if you just need a bit of technical advice, be assured that you’ll have our support and assistance.

A testament to our team approach extends to the longevity and loyalty of our employees, many of whom have been with us for over 30 years! In fact, we now have a second generation of young men working for us, too!

Our objective has always been to continue running UTX the way Tommy did. He passed away in January 2015 and we miss him every day. He is still an inspiration to everyone and our company is a special place because of him.

Explore Tommy’s Legacy with the Minnesota Vikings

Sports Illustrated Cover Tommy Mason

Meet Our Team

Team Work is the only way we work!
UTX Team - Karen
Karen Mason
UTX Team - Adrian
Adrian Downs
UTX Team - Alex
Alex Santana
UTX Team - Juan
Juan Tijerina
UTX Team - Donny
Donny Arroyo
UTX Team - Jamie
Jamie Valdez
Mickayla Arganda copy
Mickayla Arganda
Cores and Operations Support
Victoria Arganda
Victoria Arganda
Administrative Support

Don't Just Take Our Word For It

Hear what our customers have to say

Why Choose UTX

Your Remanufactured Allison Transmission Experts

Our philosophy is simple – our customers’ concerns are our priority. As soon as you come to us with your problem you are part of our team and we’ll do everything we can to get your vehicle up and running so you’re not losing time and money. Our goal is to provide you with the best remanufactured Allison transmission at the best price as quickly as we can.

We stand behind all the work we do with our “We’ve Got Your Back” warranty. Learn more about our UTX Customer Promise