Truck Service

Expert mechanicsWe are a full service shop specializing in all types of diesel truck repair from simple oil changes, brake service and diagnostics, to complete engine, transmission and differential removal and replacement.

We stock only the highest quality commercial batteries, with the highest cranking amps. All batteries are maintenance free for years of dependable service.

We also specialize in fleet maintenance, keeping your trucks on track for D.O.T. inspections. Mobile service is also available, in case of emergencies.

We have a large stock of inventory on hand and can supply you with the best quality parts for the “do it yourselfer”, at competitive prices. Next day deliveries on special orders are our specialty.

  • From Our Customers

    Steve and Shelley,
    Thanks so much for the wonderful treatment you provided in our “time of need” when our motorhome was damaged. We had a great trip and saw outstanding country, thanks to you and your excellent service at Sierra Heavy Duty, you went way out of your way to help us, can’t thank you enough!

    Dick & Jan Stump
    Longview, Washington

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  • Contact Us

    Sierra Heavy Duty, Inc.
    18968 Waylon Way
    Sonora, CA 95370

    (209) 532-7994
    (209) 532-8229 (fax)

    Map & directions...