About Os

At OS Transmissions, we’ve been committed to excellence since 2010. Founded as a small family-owned business, we’ve rapidly grown into a trusted name in the transmission repair and rebuilding industry. With over a decade of experience, we’ve built our reputation on high-quality, reliable service tailored to meet the unique needs of each vehicle we work on.

Originally located in El Monte, CA, we relocated to Temple City in 2014 to better serve our expanding customer base. As the only shop in the area specializing in in-house transmission rebuilds, we pride ourselves on delivering precise, long-lasting solutions for every customer.

Our team of skilled technicians uses state-of-the-art equipment to perform thorough inspections, meticulous repairs, and comprehensive rebuilds. Whether it’s a heavy-duty truck or a personal vehicle, we approach each job with care and dedication.

At Os Transmissions, our rebuilds range from vintage classics to timeless American muscle cars. We value transparency, trust, and customer satisfaction, and we go above and beyond to ensure every repair is done right the first time. We’re not just about fixing problems—we’re about building lasting relationships with our clients and being a resource for them whenever they need us.