You Deserve Professional, Award-Winning Service


Professional Certifications

Dunn Transmissions employs technicians who are trained and certified by the Automatic Transmission Rebuilders Association and certified by ASE (Automotive Service Excellence).

Established in 1954, the Automatic Transmission Rebuilders Association (ATRA) is an international trade association dedicated to setting high standards in automatic transmission repairs. With more than 2,000 members worldwide, every ATRA-certified member adheres strictly to a professional Code of Ethics. When you bring your vehicle to an ATRA member, you're assured of courteous, professional service delivered honestly and reliably.

The National Institute for Automotive Service Excellence (ASE) sets the bar for automotive technician certifications. ASE-certified technicians have successfully completed rigorous testing across various automotive systems, demonstrating their expertise and commitment to excellence.


Better Business Bureau Torch Award For Marketplace Ethics

Dunn Transmissions proudly received the Torch Award for Marketplace Ethics from the Better Business Bureau of Central East Texas in 2006. This prestigious award recognizes businesses committed to ethical practices, integrity, and fairness, reinforcing our promise to maintain the highest standards in serving our customers.


Better Business Bureau Award Of Excellence

We were honored again in 2014 by our local Better Business Bureau as the Small to Mid-Sized Business of the Year. This annual Award of Excellence recognizes businesses that demonstrate outstanding quality, exceptional management, and superior customer service.

Dunn Transmissions is an active and proud member of both the Tyler Area Chamber of Commerce and the Better Business Bureau, continually striving to serve our community with integrity and professionalism.