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Kenn's Transmission

"Celebrating 61 Years Family Owned and Operated!"

About Us

Kenn's Transmission in Marshalltown, IA has been a trusted leader in transmission repair and automotive service since 1958, proudly serving drivers throughout Marshall town and surrounding counties. With decades of hands-on experience, our team is known for precision workmanship, honest service, and a commitment to getting the job done right.

We specialize in expert in-house transmission rebuilds, backed by the skill and equipment needed to diagnose and repair even the most complex transmission issues. In addition to our transmission expertise, we provide a full range of automotive services to keep your vehicle running safely and reliably.

Every transmission repair comes with a 1-year, 12,000-mile warranty, and extended coverage options are available for added peace of mind. Our goal is to deliver dependable service you can trust—whether you’re facing a major repair or routine maintenance.

For reliable, experienced transmission care, visit Kenn's Transmission in Marshalltown and see why our shop has been a local favorite for more than 65 years.

Our Story

For over six decades, Kenn’s Transmission has been Marshalltown’s trusted name in transmission repair and maintenance. Founded in 1958 by DJ’s grandfather, this family-owned business has been passed down through generations, with DJ now fully taking the reins. Having grown up in the shop and learned from both his grandfather and father, DJ continues the tradition of expert craftsmanship, customer-first service, and unmatched technical skill.

At Kenn’s Transmission, we specialize in all things transmission. While other shops may dabble in a bit of everything, we focus solely on transmissions, making us the go-to experts in the area. Our team is highly skilled in in-house transmission rebuilds, saving customers money with our expert rebuilding process. We offer transmission fluid changes and maintenance to keep vehicles running smoothly, as well as all driveline work, including transfer cases, differentials, and U-joint replacements. Our services also include flywheel repair and replacement, electrical diagnostics to identify issues quickly and accurately, clutch replacement and repair for a smoother, more efficient ride, CVT transmission replacement for modern vehicles, and wheel bearing and CV axle shaft replacement to keep cars safe on the road.

We service both foreign and domestic vehicles and work with all extended warranty coverages to make repairs as hassle-free as possible. Plus, with our key drop service, we offer added convenience for our busy customers.

Our priority is getting you back on the road safely. Our knowledgeable team ensures that your car receives the best care possible, with quick and thorough service. Customer satisfaction is at the heart of everything we do. Not all transmission problems require a complete rebuild or replacement. Our team carefully diagnoses each issue to determine the best solution, saving you time and money. Instead of costly replacements, we offer affordable, high-quality rebuilds, using top-tier technology to make your transmission better than new.

Located just two blocks east of Hy-Vee, Kenn’s Transmission is your local transmission expert dedicated to reliable, efficient, and honest service. DJ and his team are committed to ensuring that every customer experiences straightforward communication, quality workmanship, and a seamless repair process.

When it comes to transmission work, trust the specialists. Call or visit Kenn’s Transmission today and let us keep your vehicle running at its best.

Areas Served

Our Professional Associations

Marshalltown Chamber of Commerce

What We Offer

Our Specialties include:

Transmissions Rebuilds and Repairs
Transfer Case
Differential Repair

Our Services include:

In-House Transmission Rebuilds
Transmission Fluid Changes
All Driveline Work
Transfer case
Differentials
Repair
Rebuild
Electrical Diagnostics
Key Drop Available
Flywheel Repair
Flywheel Replacement
We Work With All Extended Warranty Coverages
CVT Transmission Replacement
Transmission Maintenance
Foreign and Domestic
Clutch Replacement and Repair
U-joint replacement
Wheel bearing replacement
CV Axel Shafts

Our Brands include:

BorgWarner, Raybestos, Trans Go, Sonic

Testimonials

On 8/28/2026 Todd Stoves had this to say:
DJ was so kind and helpful to us today. Our van crapped out on a road trip. He looked at it and gave us the bad news the transmission was shot. He let us hang out while we figured out what to do and helped us get a guy to take our dead van once we got something in town. I really appreciate his kindness

On 8/25/2026 Ivy Marquez had this to say:
Excellent. I will definitely recommend this place. Very friendly staff. My car was fixed the same day. Thanks.

On 7/30/2026 Emily VanZwol had this to say:
We had a wonderful experience here. My vehicle had transmission trouble, and they fixed it making it drive like it's brand new. Very reasonably priced and the staff were all very kind and honest. Highly recommend!!

On 5/8/2026 Isaiah Moore had this to say:
Highly recommend! Very reasonable prices, great communication and helpful staff. Got my pickup fixed in less than 2 days even after ordering parts.

On 4/15/2026 Cheryl Jennings had this to say:
We scheduled our Chrysler Van for a transmission service, and it turned out to be a bit more than just a service job. We had cooler lines that were leaking, they called to tell us, we approved and it was still done on time. I feel much better knowing that it is in tip top shape now. Thanks for doing a great job. I will definitely be back for other vehicles and would recommend them highly.

Contact Us

Kenn's Transmission
306 E. Anson St. Marshalltown, IA 50158
Phone: (641) 752-2625
Email: kenns58@hotmail.com

Two Blocks East of Hy-Vee

Where To Find Us

Payment Types Accepted

Debit & Credit Cards, Checks, Apple Pay, Android Pay, Google Pay

Our Hours

Holiday Hours May Vary. Please Call For Details.

Monday: 8:00 AM - 5:00 PM
Tuesday: 8:00 AM - 5:00 PM
Wednesday: 8:00 AM - 5:00 PM
Thursday: 8:00 AM - 5:00 PM
Friday: 8:00 AM - 5:00 PM

News

Transmission Service Focus

🚗 Don't wait for transmission problems to leave you stranded.

Regular transmission service helps prevent costly repairs, improves performance, and extends the life of your vehicle. At Kenn's Transmission, our experienced technicians can help keep your transmission shifting smoothly and reliably. Proudly serving Marshalltown drivers since 1958.

📞 Call today to schedule your transmission service.

#KennsTransmission #TransmissionService #MarshalltownIA #PreventativeMaintenance #AutoCare

🔧✅ Thank you for the fantastic recommendation! We're glad we could get your pickup repaired quickly and keep you informed every step of the way. We truly appreciate your kind words about our team, communication, and pricing. Thank you for choosing Kenn's Transmission! 🚗⭐🙌

Whether your transmission needs a simple repair or a complete in-house rebuild, Kenn’s Transmission has the experience and technology to get the job done right. Our team diagnoses issues accurately, recommends only the repairs you need, and stands behind our work with warranty options designed to give you added peace of mind—including our standard 1-year/12,000-mile warranty, with additional warranty coverage available on qualifying repairs and rebuilds. 🙌 Quality repairs. Honest service. Trusted results. 🚙⚙️🔧✨

Don’t wait for transmission problems to slow you down! Regular transmission service helps improve performance, extend transmission life, and prevent costly repairs. At Kenn’s Transmission, we provide expert inspections, fluid changes, and diagnostics to keep your vehicle shifting smoothly. ✅ Let our experienced technicians help keep your car road-ready and reliable. 🚗💨🔧

For more than 65 years, Kenn’s Transmission has been Marshalltown’s trusted choice for expert transmission repair and service. From routine transmission maintenance to complex in-house transmission rebuilds, our experienced team delivers honest service, quality workmanship, and results you can count on. ✅
📍 Proudly serving Marshalltown and the surrounding communities since 1958.

FAQ

How long will it take to complete the job?

The completion time depends on the specific job, generally ranging from a day to a week. We'll give you a more accurate estimate after assessing the issue.

Where do I leave my keys when dropping off my vehicle after hours?

Please use our drop box located next to the front door for a convenient and secure key drop-off.

What kind of warranty do you provide on your services?

We offer a standard warranty of 12 months or 12,000 miles. Additionally, we have a range of other warranty options available to suit your needs.

How often should I change my transmission fluid?

Most vehicles need transmission fluid replaced every 30,000–60,000 miles, but this varies by manufacturer, driving style, and towing/hauling habits. We can check your fluid condition during your visit.

What’s the difference between a transmission repair, rebuild, and replacement?

Repair: Fixing or replacing only the damaged components.
Rebuild: Disassembling the transmission, replacing worn or failed parts, and reassembling it to factory specifications.
Replacement: Installing a new, remanufactured, or used transmission when repairs aren’t possible or cost‑effective.

How do I know if my transmission needs repair?

Common signs include slipping gears, delayed shifting, grinding noises, fluid leaks, a burning smell, or the check‑engine light turning on. If you notice any of these symptoms, it’s best to have the transmission inspected quickly to prevent further damage.