• 480 Littlefield Avenue • South San Francisco, CA
  • Mon-Fri: 8am-5pm
  • (650)872-3656

About Us

Heavy-Duty & Light Truck Repair Pros

For over three decades, Steven’s Bay Area Diesel Service, Inc., located in South San Francisco, California, has been the go-to destination for expert diesel engine repair and maintenance services. Our dedicated team of mechanics specializes in both heavy-duty and light truck repairs, providing reliable service since 1985. Committed to excellence and customer satisfaction, trust us with all your diesel engine needs.

Authorized Dealer - Allison Transmission





We Proudly Service Fire & EMS

Our Services

Heavy-Duty & Light Truck Repair & Service

Steven's Bay Area Diesel Service, Inc. provides exceptional Heavy-Duty & Light Truck Repair & Service. Trust our experienced technicians to get your trucks back on the road, running smoothly.

Mechanical Services

Mechanical Services

At Steven's Bay Area Diesel Service, we offer a wide array of expert mechanical services designed to keep your diesel vehicle running smoothly and efficiently. From diagnostics to precision repairs, our skilled technicians ensure your vehicle's optimal performance and safety.

Preventative Maintenance Services

Preventative Maintenance Services

At Steven's Bay Area Diesel Service, our Preventative Maintenance Services are meticulously crafted to ensure the longevity and peak performance of your vehicle. With a proactive approach to maintenance, we help prevent costly breakdowns and downtime, saving you time and money in the long run. Our skilled technicians conduct thorough inspections and servicing, including lube, oil, and filter changes, as well as comprehensive BIT, safety, and maintenance inspections. We take pride in our attention to detail and commitment to keeping your diesel vehicle operating smoothly and efficiently.

Inspection Certification Services

Inspection & Certification Services

At Steven's Bay Area Diesel Service, our Inspection & Certification Services are comprehensive and thorough, designed to ensure the safety and compliance of your diesel vehicle. We offer a range of essential inspections, including maintenance checks, safety inspections, and compliance assessments. Our skilled technicians are trained to identify any potential issues and address them promptly to keep your vehicles running smoothly and safely. Whether it's routine maintenance or specialized inspections like Brake & Lamp Certification, you can rely on us to uphold the highest standards of quality and reliability in every aspect of your vehicle's inspection and certification needs.

Steam Cleaning Service

Steam Cleaning Service

At Steven's Bay Area Diesel Service, our Steam Cleaning Service is a thorough and effective solution for maintaining the cleanliness of your vehicle. Our state-of-the-art steam cleaning equipment ensures deep penetration and removal of dirt, grease, and grime from every surface. From engine compartments to interiors, our skilled technicians pay meticulous attention to detail, leaving your vehicles spotless and refreshed. Steam cleaning not only enhances the appearance of your vehicles but also helps in preventing corrosion and prolonging their lifespan. Trust our professional steam cleaning services to leave your fleet looking and operating at its best.

Specialized Vehicle Services

Specialized Vehicle Services

Repairing of all brakes, be it hydraulic or air. Whether you have Bendix & Wabco ABS system, Steven's Bay Area Diesel Service has the right tools to handle all repairs. Drum and Rotor turning done in-house for faster turn around time.


We Strive for Customer Satisfaction

Read what some our customers have to say about our exceptional service at Steven’s Bay Area Diesel Service, Inc.

I would like to tell you that I very much appreciate all the superb service you and your Technicians have provided to me. I always feel a job had been done fast without sacrificing quality and always keeping me informed about the progress of my truck. It is a real pleasure in today's market to feel confident with services I am expecting.
Joe Molinelli
Thank you for all your assistance this year. I want to thank you and everyone at Steven's for all your support. Our fleet has increased substantially in the past few years and it looks as though we will continue to grow well into the future. Please help us by carefully looking at all the units and work with us to keep them, not only mechanically in good shape, but to have them cosmetically looking like the best fleet in the Bay Area.
Ken J. Madsen Encore Trucking
Thanks for the terrific work Steve. I'd recommend your service to anyone needing work on his or her diesel powered vehicle. Your knowledge, ability and honesty combine to provide your customers outstanding serve at a reasonable price.
John R. Griffiths
It's refreshing to talk to a service writer that know what he is talking about. Steven is a pleasure to deal with. These folks know diesel trucks! They have always came through for me on time and on budget.
Steve Watson
Very fair and reasonable. Just takes care of when he needs to take care of and doesn't try to sell you anything else.
William Sparks
The guys here are great! Very knowledgeable and will take care of your diesel better than any other. I refer all my friends here.
Tony Lag
Info Zone

Read The Latest News & Information

Stay informed on the latest news and information regarding diesel engines and repair with Steven's Bay Area Diesel Service. Our articles provide valuable insights on industry developments and maintenance to keep you in tune. Trust us to keep you up-to-date!

Steven's Bay Area Diesel • 480 Littlefield Avenue • South San Francisco, CA

Contact Us

Send Us a Message!

For all your diesel servicing needs, contact us at Steven's Bay Area Diesel Service. Our team of experts is ready to assist you and provide the best solutions. Call us or send us a message using the form to schedule an appointment today!

Employment Opportunities

Come Work for Us!

Join our team of skilled professionals at Steven's Bay Area Diesel Service. Our expert technicians specialize in a diverse range of diesel vehicles and provide unparalleled service to our valued customers. We are looking for highly skilled individuals who thrive in a supportive work environment. Click on position below to complete your online application today and take your career to the next level!

How did you hear about us?(Required)

Please let us know what's on your mind. Have a question for us? Ask away.

Better Business Bureau
ASE Certified
Bereau of Automotive Repair
Official Brake Adjusting Station
Official Lamp Adjusting Station

Steven’s Bay Area Diesel in South San Francisco, CA has provided expert Diesel Engine Repairs and Parts & Service since 1985. Our dedicated team of mechanics specialize in heavy-duty and light truck maintenance. Committed to reliable service and customer satisfaction — trust us for all your diesel engine needs!


Monday - Friday
8:00am - 5:00pm

Saturday - CLOSED

Sunday - CLOSED



480 Littlefield Avenue
South San Francisco, CA

Office (650)872-3656