The List Goes On and On...

We also are your one-stop source for all of your driveline related needs like U-Joints, CV Axles, Rack and Pinion Steering, Driveshafts, Manual Transmissions, etc.

Complimentary Inspection

Complimentary Road Test

Complimentary Advice

Computer Diagnostics$59.95 + tax
Transmission Service (most)$109.95 + tax
TRANSFUSION$189.95 + tax
A/C Diagnostic Performance Test$69.95 + tax


Call your nearest location today and ask us why your transmission would need a TRANSFUSION!

What is a Transfusion?
Glad you asked...
It is like a blood transfusion. It replaces almost all of the fluid inside your transmission. It also includes a filter replacement where applicable.


DON'T BE MISLED BY SHOPS AND QUICK LUBE PLACES that tell you that it is no longer necessary to pull the pan and replace the filter. That is simply not true. Some also say that their "machine" can backflush the internal transmission filter. Hydraulically-speaking that is Hogwash! It can't do that-- you still need to pull the bottom pan and see what's inside and replace that filter!

We are dealers for HC12-A which is a direct, drop-in replacement for R-12 and does not eat AC compressors like some have said and it cools better than R-134!!!

Many of the services we offer require us to see your specific needs in order to quote a price.

Please call us at 901-476-TRAN or 1-800-909-TRAN for more details.

Hayden Automotive - A Company of Four Seasons Division / Standard Motor Products, Inc.
Hayden Automotive has been in business for over 45 years and has been leader in automotive, truck and performance cooling products.
Over 14 million transmissions fail every year, 9 out of 10 from overheating. Every 20° drop in operating temperature can double oil and equipment life.

We install Hayden Transmission coolers. Some models we carry in stock others we may have to order.

You'll find some of the reasons you might need a transcooler listed below.

Use a transcooler if you:

  • Tow boats, trailers or fifth wheels
  • Drive in stop-and-go traffic
  • Climb steep grades
  • Drive in hot weather

Jasper Transmission and Engines
Jasper Engines and Transmissions have been in business for 66 years. They are one of the best in the automotive industry for rebuilt engines and transmissions for people who travel state-to-state a lot.

Jasper is our favorite source of engines -especially when we can offer our customer their 3 year/100,000 mile warranty!!!

We also recommend their transmissions when our customers drive cross-country alot since the Jasper warranty is good all over America.

How much will it cost to fix my transmission?

99% of the time, that is a really hard question to answer. With all of the computer controls in vehicles today, that is almost as hard as getting you to guess about the color of my socks! You really cannot tell until you look. And many of the customers that come in, and are expecting to need a transmission, are pleasantly surprised to find that it needs a sensor, a fuse, or some other electrical part.

That is the reason that we have a "FREE INSPECTION" and we will be happy to develop a course of action to address your specific problem. This is truly a win-win situation.



Why We Do What We Do

We believe that where ever you decide to get your car repaired, you should have someone stand behind the work they do. Too many companies don't. That's the difference between us and "them". We take pride in our work, and don't like it when something is wrong.

Our warranty is one of the best in the business and we stand behind it 100%.

Our Philosophy

Fix it right the first time utilizing the latest in technical information and training for our technicians and the very best quality parts!

Our Company

Certified Transmissions has been a family-owned and operated business for over 32 years. We have been in the same location the whole time. We plan to be here for many years to come, and have responded to the request by loyal customers to open a branch in Dyersburg !!!

We are ASE and ATRA certified.
We work on foreign and domestic vehicles. Major repairs, minor and A/C repair. We do a little bit of it all.

  • Quality Work
  • Precision Performance
  • Versatile Standard
  • Superior Service



Simply email us at

Prefer snail mail?  Our mailing address is

Certified Transmissions

1022 Hwy. 51 N.

Covington TN 38019