We are a small family run and operated company based outside of Los Angeles in Whittier, CA. Although we opened in 2018, we have over 60 years of experience in the industry. Alliance Diesel has extensive and long lasting roots in the medium and heavy duty commercial industry, both as parts specialists and mechanics. We work with individual owner/operators, fleets, and everything in between. We cater to customers across the US, Canada, and some parts of Mexico.

We strive to ensure we provide solutions for our customer's parts needs while maintaining quality of service. We achieve this through hands on management, diligent customer service, and state of the art facilities. Our facilities include a full service machine shop, a fuel lab, and multiple warehouses spread across the US. All of these in conjunction provides us the flexibility and quality control standards to best serve our customers.

Our goal is to ensure that we provide the quality parts and excellent service that our customers need to stay on the road. We keep your wheels turning to keep you earning.