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Here at American Transmission We are Family owned and operated, We have been Serving the Inland Empire Since 1967. Our goal is to provide Honest Quality work, at a reasonable price.
American Transmission, we are your one stop transmission and automotive specialist. We also Service transfer cases, differentials, air conditioning and brakes on most all makes and models. We have the most up to date computers and  electronic diagnostic equipment available. Our wide range of services ensures that when your car is returned, you will be back on the road.  Everything from annual transmission services to complete rebuilds, our technicians are working for you.
Just give us a call @ 909-829-9300 or 822-5405 or stop by @ 14765 Valley Blvd in Fontana.
Mon - Fri 8 AM-5 PM
Ask for J.R or Jerry, We will be happy to help you.

  • Complete Automatic & Standard Transmission Repair
  • Foreign/Domestic
  • Motor Homes and 4x4
  • Front Wheel Drives
  • Oil Change
  • Tune-Ups
  • Brakes / Rotors
  • Free Diagnostic Check On Most Vehicles
  • Air Conditioning
  • Shocks / Struts
  • Axles / Clutches
  • Transmission Coolers
  • C.V. Joints & Boots
  • U-Joints & Drive Shafts
  • Minor Motor Work
  • FREE Local Towing With Major Repairs

Driving Directions

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Automatic Transmission Rebuilder Association ATRA - the Automatic Transmission Rebuilders Association - is an international trade association for the professional automatic transmission repair industry. We are composed mainly of independent transmission repair facilities. These facilities apply the ATRA code of Ethics to their automatic transmission repair and diagnostic services which better assists consumers with their automatic transmission repair complaints and concerns.



TRANSTAR Transtar Industries, Inc., headquartered in Cleveland, Ohio, is the leading aftermarket transmission parts supplier to the automotive repair industry. Transtar has over 60 locations in the US, Puerto Rico, and Canada, and an international division that serves more than 70 countries around the globe.


Sonnax Founded in 1978, Sonnax has become a leading supplier to the automotive aftermarket. The company designs, manufactures and distributes replacement components for automatic transmissions, torque converters, drive shafts and related products worldwide.


TransGo TransGo has provided engineering solutions for the automatic transmission repair industry since 1959.



transmission rebuilders network TRNW, Transmission Rebuilders Network Worldwide is an international network of transmission technicians, transmission rebuilders, and transmission shop owners who discuss every aspect of running a transmission repair facility.