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I & B Automotive
About Us
With over 10 years in the industry and still growing, our family-owned and operated business has established itself as a trusted name in the field of diesel repair. While we specialize in diesel repair, our experienced team is also knowledgeable in diagnosing and repairing all types of vehicles, not just diesel engines. We are fully equipped with the latest diagnostic equipment and are prepared to tackle any repair or maintenance job with precision and efficiency.
At the heart of our business is a passion for what we do and a dedication to providing top-notch service to every customer. We take pride in our work and strive to exceed customer expectations with every job we undertake.
Thank you for considering us for your automotive repair needs. We look forward to the opportunity to serve you and demonstrate our commitment to quality and customer satisfaction.
Areas Served
Argos, IN | La Porte, IN | Marshall County, IN | Starke County, IN | Plymouth, IN | Grovertown, IN | La Paz, IN | Lakeville, IN | Hamlet, IN | Koontz Lake, IN | Walkerton, IN | Knox, IN | Rochester, IN
What We Offer
Our Specialties include:
- Auto Repair & Service
- Diesel Diagnostic
- Repair & Service
Our Services include:
- Diagnostics
- Preventative Maintenance
- A/C Repair & Service (R134A & R1234YF)
- Engine/Transmission Repair
- Brake System Repair
- Suspension & Steering
- Wheel Alignments
- Tire Sales & Service
- Electrical Repair
- Trailer Repair & Fabrication
- Fleet Management
- Window Tint
Our Products include:
- AMSOIL
- Hotshot's Secret
- Pusher Intakes
- Tire & Wheel Sales
Testimonials
On 1/16/2026
B Sage
had this to say:
They are without question the best mechanic shop in the area. They're one of the few shops that are honest, fair, and in my experience they usually come in at, or below, their estimate. Riley is excellent at communicating all needed/ completed repairs and is very friendly. I & B is one of the few auto shops that don't leave you feeling like you were ripped off by the time it's all said and done. I recommend them to anyone who asks where to find a good mechanic. Simply put, I & B is a top-notch mechanic shop with excellent staff. A+++
On 10/24/2025
Sue Warner
had this to say:
I had I&B check out a motor replacement from a reputable dealer on my car and my lord they found so much wrong with the motor that the dealership had to replace the whole motor again. Thanks you guys you will have my business from now on.if you have trouble with your vehicles call them they are great.
On 8/14/2025
Bradley S.
had this to say:
First time here for an oil change. Very pleasant and knowledgeable staff.
This is now my shop for everything car related. I highly recommend!
Testimonial written by Bradley S. on this site.
On 8/8/2025
Nick Shepherd
had this to say:
I&B is a great repair shop. Knowledgeable, priced right, fast turns. Great for diesel repairs as well.
On 7/28/2025
Lori Schwartz
had this to say:
Clearly explained the work that needed to be done. Able to get my car in within a day of calling. Came in under the estimate! Will definitely use them again
Contact Us
I & B Automotive
5549 Union Rd. Plymouth, IN 46563
Phone: (574) 935-3858
Email: service
2 Miles North of US 30
Where To Find Us
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Payment Types Accepted
Checks, Visa, MasterCard
Our Hours
Monday: 8:30 AM - 5:00 PM
Tuesday: 8:30 AM - 5:00 PM
Wednesday: 8:30 AM - 5:00 PM
Thursday: 8:30 AM - 5:00 PM
Friday: 8:30 AM - 5:00 PM
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