Baltimore's Transmission Leader

Exceeding Expectations Since 1958


Baltimore MD Automotive Repair & Service

Welcome to Jim Jennings Transmissions

The Jennings family know reputation and customers are our most valuable assets and pledge to always do the "right thing" to protect them. That means our shop promises to diagnose transmission problems for all of our local and surrounding area customers in an honest, efficient and expert manner. Our shop strives to provide prompt and courteous service to all who visit our automatic transmission repair center in the hope that you will return when you need transmission related work and refer your friends.


The entire team of technicians at Jim Jennings Transmissions in Baltimore treated us like family!

Arlon King
Daytona Beach Florida

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I first heard about Jim Jennings from my Professor at Towson University. He told me about sting that the news conducted to catch dishonest transmission shops. He said that Jim Jennings was used as the control shop to verify if the trans were good or bad and to assess what the average cost of repair should be.

Parkville Maryland

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I can't thank Jim Jennings enough. They are honest, do good work, and fast. Whatever the top star is, I would have to give it to them.

David .
Dundalk Maryland

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Thank you for the time to build a good transmission, to my specs! I'll send all my work to you because you take the time that other shops don't.

Ryan Kammer
Bel Air Maryland

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The service was outstanding and they treated my vehicle as if it were their own.

Ron Rubenstein
Rosedale Maryland

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I always come back to Jim Jennings for the best transmission service in Baltimore!

Frank Lopez
Ocean City Maryland

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I was very satisfied with excellent and polite service. Thank you Ray for keeping me informed of the problem and transmission repair required. Highly recommend them

Jim Bradley
sparrows point Maryland

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I completely trust Jim Jennings to perform service on my car. Thank you!

Frances Cary
Catonsville Maryland

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I will definitely be a repeat customer again if I have any transmission issues, ever!! AND their shop was super clean to boot!!

Michele R
Parkville Maryland

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Jim Jennings is a great business. They are honest, professional, customer oriented people who provide excellent service.

Dundalk Maryland

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Cost cutting offers


Baltimore Transmission Flush & Service

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Baltimore Free Transmission Diagnosis

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Automatic Transmission - How It Works!

Latest News

State Senator JB Jennings Reelection


Jim's grandson, JB Jennings, was reelected to the Maryland Senate representing northeastern Baltimore County and southern Harford County. This election cycle will be his fifth serving the 7th Legislative District.

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Jim Jennings Transmissions is pleased to introduce our valued team. Every team member at Jim Jennings Transmissions is dedicated to making sure our customers get the service they expect and deserve at our auto repair shop in Baltimore.


Jim Jennings Transmissions understands how important it is to find a quality automotive repair shop in the Baltimore area. This is why we value the associations we have with the reputable organizations listed below. These associations help our auto repair shop in Baltimore to give you the confidence in knowing that your automotive repair and service needs will be met by our qualified automotive repair and service expert technicians.
Jim Jennings Transmissions, a AAA Approved Auto Repair Shop serving the greater Baltimore area, offers our customers AAA peace of mind protection with quality guaranteed service!
Jim Jennings Transmissions is an ATRA automatic transmission shop serving the greater Baltimore area.
TRNI transmission repair shop Jim Jennings Transmissions serving the Baltimore area.
Jim Jennings Transmissions is a BBB Approved Auto Repair Shop serving the greater Baltimore area.
Jim Jennings Transmissions is a Baltimore Transmission shop proud to be affiliated with the Chesapeake Gateway Chamber of Commerce

Fleet Service

Jim Jennings Transmissions has established itself as one of the more popular choices for fleet repair services in the Baltimore area. For the majority of our fleet customers, Jim Jennings Transmissions offers pick-up and delivery service for their fleet's vehicles. The team at Jim Jennings Transmissions takes advantage of our partnerships with various fleet management companies and as such we utilize fleet monitoring software that assists us in keeping detailed vehicle service histories and scheduled maintenance records for each and every vehicle in our valued fleet. Our team of ASE certified professionals are dedicated to reducing overall vehicle downtime and ensuring your vehicles keep doing what they are intended to do, keep your company running smoothly.

Jim Jennings Transmissions

Mon. - Fri. 7:30 AM to 5:30 PM
Closed Weekends