Western States Converters and Transmissions logo




In business since 1988, we have retained staff, which give us an advantage of invaluable experience to ensure your service or parts event is a seamless process. Western States Converters and Transmissions  use only genuine Allison parts when rebuilding an Allison Converter or Transmission. Our Factory trained Technicians are committed to always provide the quality and professional services that you deserve.
Working out of a garage in early 1988, Western States Converters and Transmissions now sits on 2 acres, is fully concreted with a 10,000 square foot building. We are proud to be the most requested Off Highway Allison Transmission builder in California. We’re good, and we’re proud of what we do.

  • Our Field Service Technicians are MSHA and PASS-PORT trained. This keeps them on site when a State Official comes rolling up!
  • Caterpillar, ZF, Twin-Disc, it makes no difference, as we build them all for the Off-Highway Markert!

So, for exceptional service, quality, and reliability...trust Western States Converters and Transmissions. We are, Your Allison Transmission Connection.


Specializing in the repair of:

Allison Transmission
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Western States Converters and Transmissions logo
224 Jason Crt.
Corona, CA  91719
(951) 279-6393
(888) 463-3499
(951) 279-1847 Fax

email usEmail us: Sam Clemmons

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