YOUR TRANSMISSION • CLUTCH • DIFFERENTIAL SPECIALIST
Discover why La Union is trusted nationwide as a true powertrain expert.
We specialize in the remanufacturing, rebuilding, and sales of heavy-duty transmissions, clutches, and differentialsfor semi-trucks, commercial trucks, and fleet operators. Whether you need a fully remanufactured transmission, expert repair, or a fast replacement to get your truck back on the road, La Union delivers quality, reliability, and unmatched technical expertise.
Remanufactured Transmissions Ready to Ship Nationwide
La Union stocks and builds premium remanufactured transmissions using industry-trusted brands like Eaton, Meritor, Rockwell, Spicer, and Detroit DT12. Every unit is rebuilt with OEM-level precision so your fleet experiences long-lasting performance and minimal downtime.
Eaton Endurant 12-Speed Specialists
The Eaton Endurant 12-speed transmission is known for efficiency — but it also has well-documented issues that can cause premature failure if not addressed correctly.
La Union’s technicians have extensive experience diagnosing and repairing these problems, including:
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Premature wear in the countershaft bearing bores
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Improper gear alignment caused by housing wear
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Main drive gear damage resulting from misaligned gears
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Additional internal wear patterns common to the Endurant series
Our advanced remanufacturing process corrects these issues at the root, restoring factory-grade accuracy and preventing repeated breakdowns.
Why Choose La Union?
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Over 30 years of powertrain experience
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Service for Peterbilt, Freightliner, Kenworth, International, Volvo, and Mack
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Fast turnaround to reduce downtime
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OEM-quality work at competitive pricing
- Financing Available, 0 Down and up to 12 months no interest! O.A.C.
From single-truck operators to nationwide fleets, La Union keeps you moving with dependable, high-quality powertrain solutions you can trust.
Services We Offer
At La Union, we’re proud to be recognized as one of the nation’s leading remanufacturers of heavy-duty transmissions, differentials, and clutches for the trucking industry. Our expert technicians rebuild components to OEM-level precision, delivering performance, durability, and reliability that fleets can trust. We service all major semi-truck manufacturers — Peterbilt, International, Freightliner, Kenworth, Volvo, and Mack — using top-quality components from industry-trusted brands like Eaton, Meritor, Rockwell, Spicer, and Detroit DT12. Whether it’s a single truck or an entire fleet, we keep you moving with dependable remanufactured powertrain solutions.
Tranmissions
We specialize in heavy to medium duty. transmissions. We also carry ready to install overhauled transmissions from a simple 5 speed to an 18 speed.
Clutch
We carry a wide variety of clutches for any type of truck from manual to automatic transmissions. Clutches are in stock and available.
Differentials
We rebuild any heavy duty and medium duty differentials from a simple baring to a compete overhaul we can get it fixed. We carry it all!
Our Reviews Speak for Themselves
The Vision
La Union began over 30 years ago with one man’s vision: to provide customers with honest, reliable service and the highest-quality powertrain components available.
Built on a commitment to premium materials, fair pricing, and minimizing downtime for drivers who need to stay on the road, that vision became the foundation of our company.
Today, the result is La Union Powertrain Experts dedicated to keeping your fleets moving.
We Work Hard
We work hard to keep your fleet running strong.
At La Union, we are one of the nation’s leading providers of heavy-duty powertrain remanufacturing, specializing in transmission rebuilds, differential overhauls, and clutch service for semi-trucks and commercial fleets.
Our expert technicians service all major truck manufacturers like Peterbilt, Freightliner, Kenworth, International, Volvo, and Mack using trusted components from Eaton, Meritor, Rockwell, Spicer, and Detroit DT12.
With high-quality remanufactured powertrain components and fast turnaround times that minimize downtime, La Union delivers the reliable, professional service your fleet depends on.
Have questions about your transmission, clutch, or differential?
La Union is based in El Paso, Texas, serving customers from Texas, New Mexico, Arizona, and nationwide with reliable powertrain repairs and remanufactured transmissions. Our team is ready to help you find the right solution for your truck or fleet.
13770 Bachimba Dr
Socorro, TX 79928
info@launionusa.com
phn: 915-227-3113
Office: 915-600-2070
