Transmission Service

Our professionals here at Stephens Automotive will fix or replace your transmission as needed in Des Moines, IA.

The transmission is necessary for your vehicle to run correctly. It converts the engine’s force into a controlled source of power. The transmission converts the engine’s power into torque that turns the axles and then rotates the wheels in an efficient way. Using gear ratios, the transmission keeps the revolutions per minute (RPMs) for the engine and the wheels at optimal rates.

There are two different kinds of transmissions. Automatic and manual transmissions have different benefits and drawbacks, and they work slightly differently. Transmission fluid acts as a cooling agent that protects the transmission, keeps it from overheating, and lubricates the internal gears to prevent rust and corrosion. In an automatic transmission, the fluid also applies pressure and force to help change gears. Manual transmissions use clutches and gear shifts to do this.

NAPA Service Logo
NAPA Service Car Image
Nationwide Peace of
Mind® Warranty NAPA Service Warranty Badge

24 Months / 24,000 Miles Nationwide Warranty

  • Included FREE with qualifying repair or service work.
  • Covers parts and labor for 24 months/ 24,000 Miles
  • Honored nationwide by thousands of NAPA AutoCare Centers, just like us, so you’re protected even when you travel
There's no greater peace of mind® than knowing you have one less worry by having your vehicles serviced by our professionals. We stand behind our work with the NAPA AutoCare Peace of Mind® Warranty

Signs your transmission has issues:

  • Rough shifting between gears
  • Slipping out of gear
  • Hesitations/delays between gears
  • Excessive noise
  • Burning smell through vents
  • Transmission fluid leak

Located in Des Moines, IA, Stephens Automotive is happy to repair your transmission.

Is it safe to drive with a slipping transmission?

Slipping transmissions can be unpredictable and shift without warning. This makes your driving unpredictable and not safe. Failure to address a faulty transmission can cause other problems such as fluid leaks. If the transmission gets too bad, it can cause more expensive issues or even total vehicle failure.

We will examine your vehicle’s needs for transmission service. We want to keep your vehicle working efficiently and your gas mileage high. Stephens Automotive proudly serves the transmission repair needs of customers in Des Moines, IA and surrounding areas.

Contact Us

5320 Northwest Beaver Drive, Johnston, IA 50131

Service: (515) 278-9994

Hours of Operation

Monday - Thursday:
Saturday - Sunday
7:00AM - 6:00 PM
7:00AM - 5:30 PM








What Our Clients Say

Bought a new truck and a new car in the same day!! Have bought from STEPHENS AUTOMOTIVE for many years!! Have always been treated Great!! If your looking for something new or used!! Give them a chance!! Its worth your time!!!!

Jerry Wilson


What amazing service! We recently had our mini-van worked on for a problem with it's air conditioning. Not only did Stephen's finish the work faster than completed, they also reduced the price of our bill to reflect the amount of labor. We were pleasantly surprised to find that kind of honesty! Thank you Stephen's, you've made us a loyal customer!

Sara O.


Stephens will always have my business as long as I own a car. Their mechanics are fully certified and have always done the job right the first time. I highly recommend Stephens to anyone in need of car repairs or maintenance that wants someone honest and genuine to serve them.

Chris M.




We'd love to hear from you.
Feel free to write us a review on


Read All Reviews


CALL : 515-278-9994

Your Automotive Repair & Maintenance Service specialist