ABOUT US

About Our Shop

Our History of Transmission Repair in San Antonio

Family-Owned and Operated Since 1996

At Kosub Transmission Service, we’ve built our reputation on honesty, expertise, and a dedication to quality that spans generations. Founded in 1996 by Gerald and Donna Kosub, our shop began as a small one-bay operation in China Grove, Texas, serving San Antonio and the surrounding counties. With just one employee and a passion for doing things the right way, the Kosubs quickly earned the trust of their community through their integrity, professionalism, and exceptional workmanship.

Over time, that dedication paid off. What started as a modest local business has grown to a full-service transmission facility with a team of eleven skilled technicians and staff—many of whom have been with us for years. Together, we’ve proudly served more than 40,000 customers, keeping families and businesses on the road with reliable, high-quality transmission service.

Our success has always been rooted in the same core values: faith, family, hard work, and respect. We believe the American dream begins with these principles—and we’re blessed to share them with our loyal customers and dedicated team.

Today, joined by Nathan Kosub, Gerald and Donna’s son, we continue to uphold the same commitment to honest repairs, exceptional service, and lasting relationships. Whether you need a complete automatic transmission rebuild, a replacement, or routine maintenance, you can count on our family to treat your vehicle like our own.

Customer Reviews

Hear From Our Happy Drivers

Real experiences from people who trust us with their vehicles

Our customers are the heart of everything we do at Kosub Transmission Service. From routine maintenance to transmission replacement, we take pride in providing reliable service, clear communication, and honest pricing. The positive feedback we receive reminds us why we do what we do every day.

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