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

    I was referred to Sierra Heavy Duty by Angels Camp RV Park as my electric jacks were not working.When I arrived I was surprised to find out they were willing and ready to fix on spot while i waited.Overall very pleased with this business and will definitely be back as they had great prices and customer service.

    Yahoo Local Review

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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...