Denver's Trusted Transmission Shop, AC Transmission Center

DOMESTIC & FOREIGN AUTO SERVICE

When you need a transmission shop in Denver, CO, you want proven credentials, a full range of services, and a track record that goes back decades. AC Transmission Center, located at 6780 Federal Blvd in northwest Denver, has been serving drivers since 1965. ATRA and ASE certified technicians handle everything from free diagnostics to complete rebuilds. Call (303) 428-6566 or stop in Monday through Friday, 7:00 a.m. to 5:30 p.m.

Close-up of disassembled transmission gears and shafts during repair

Why Denver Drivers Trust AC Transmission Center

AC Transmission Center brings over six decades of continuous operation under original ownership. ATRA and ASE certification means every technician attends ongoing training to stay current with computerized transmissions, transfer cases, and CVT technology.


Every visit begins with a free diagnostic that includes a technician road test, computer code scan, and vehicle safety inspection. No charge, no pressure. Whether your vehicle needs a fluid service, a solenoid swap, or a full rebuild, you will know exactly why before any work begins.



Trust signals Denver drivers rely on:

  • ATRA and ASE certified technicians performing all work.
  • Free towing on all major repairs throughout the Denver metro area.
  • Financing available for larger jobs.
  • Transparent assessments before any repair begins.
  • Serving the Federal Boulevard community since 1965.


Read verified customer reviews to see what Denver drivers say about their experience.

What Services Does Our Denver Transmission Shop Offer?

AC Transmission Center offers a full-spectrum transmission and drivetrain service menu covering domestic and foreign vehicles, light trucks, 4x4s, SUVs, and motor homes.

Explore the full service menu or follow the links below:


How to Get Service at AC Transmission Center

  1. Call (303) 428-6566 or contact the shop online to schedule or ask about free towing.
  2. Drop off your vehicle at 6780 Federal Blvd, Denver, CO, 80221, Monday through Friday, 7:00 a.m. to 5:30 p.m.
  3. A certified technician performs a road test, computer code scan, and safety inspection at no charge.
  4. You receive a clear explanation of findings and options before any work begins.
  5. Approved repairs are completed by ATRA and ASE certified technicians using quality parts, backed by a warranty.

Serving Northwest Denver and the Surrounding Metro Area

AC Transmission Center sits on Federal Boulevard, a main north-south arterial connecting northwest Denver to Westminster and Federal Heights. The location is easy to reach from Berkley, Chaffee Park, Regis, and Sunnyside, as well as Arvada, Wheat Ridge, Westminster, Northglenn, Broomfield, Thornton, Commerce City, and Federal Heights.



Denver's climate and terrain accelerate transmission wear. Extreme temperature swings stress fluid and seals, while elevation changes and mountain-corridor towing put extra load on transfer cases and 4WD systems. AC Transmission Center is equipped to address these region-specific demands, particularly for trucks and SUVs used for both commuting and recreational hauling.


Find AC Transmission Center on Google to check hours, get directions, and read recent reviews.

Frequently Asked Questions

  • What Does a Transmission Shop Offer That a General Repair Shop May Not?

    A dedicated shop like AC Transmission Center focuses specifically on drivetrain systems, requiring specialized diagnostic equipment and ongoing technical training. ATRA and ASE certification, combined with decades of experience, means technicians can accurately diagnose problems a general shop might miss.

  • Does AC Transmission Center Offer Free Diagnostics?

    Yes. Every visit begins with a free diagnostic that includes a technician road test, a computer code scan, and a full vehicle safety inspection, so you understand the problem before any repair cost is discussed. There is no charge and no pressure to approve work, just a clear explanation of findings and your options.

  • How Much Does Transmission Repair Cost in Denver?

    Costs depend on the transmission type, the extent of the damage, and the parts required for the repair. Every estimate follows a free diagnostic, so you know the scope of work before agreeing to anything. Contact the shop at (303) 428-6566 or request a quote online.

  • Does AC Transmission Center Service 4WD and Diesel Vehicles?

    Yes. The shop services 2WD, 4WD, and AWD vehicles, including trucks and SUVs with transfer cases, plus diesel transmission repair and performance upgrades. This matters in Denver, where elevation changes and mountain-corridor towing put extra strain on transfer cases and 4WD systems, especially for vehicles used for both commuting and recreational hauling.

  • How Long Has AC Transmission Center Been in Business?

    AC Transmission Center has operated from its Federal Boulevard location since 1965, making it one of the longest-running independent transmission shops in the Denver metro area. The shop has remained under original ownership for more than six decades, with ATRA and ASE certified technicians continuing that legacy of reliable, honest service for Denver drivers today.

Schedule Your Visit Today

Drivers who want certified expertise, honest communication, and warranty-backed repairs turn to AC Transmission Center, a trusted transmission shop serving Denver. Call (303) 428-6566, contact us online, or stop in at 6780 Federal Blvd, Denver, CO, 80221, Monday through Friday, 7:00 a.m. to 5:30 p.m.