W.W. Williams & Allison Authorized

We're Your Allison Authorized Partner

For 100+ years, Allison Authorized has built a reputation on performance and durability—equipping the transport industry with the ability to get the job done more efficiently. At W.W. Williams, we are a proud Allison Authorized distributor and service provider—and we're known for understanding the products inside and out. With top-notch service centers, factory trained technicians, and knowledgeable support staff, we'll help you get more out of your transmissions and vehicles.

Find an Allison Authorized Service Center Near You

Need transmission repair or service? In the market for a new transmission?

Full Service Support & Sales for Allison Authorized

ALLISON AUTHORIZED SERVICE & REPAIR

We are your authorized Allison Authorized warranty service provider, with trained technicians dedicated to helping you optimize performance. We do it all—repairs, overhauls, rebuilds and standard maintenance all designed to increase the uptime and life of your transmission. Our Allison Authorized repair services include:

  • SPEC Tool© investment analysis
  • Driveline spec’ing with iSCAAN
  • Allison DOC™ software
  • Allison TransHealth™
  • Mobile service capabilities
  • Experienced, factory trained technicians

Testimonials

W.W. Williams took care of us. I dropped my truck off the night before and they called me when it was ready. Time is important to a small business like us and they did it quickly. 

Heating Contractor Allison Authorized Service

AUTHORIZED ALLISON AUTHORIZED DEALER

In the market for a new or refurbished diesel transmission? Allison diesel transmissions have a global reputation for quality, efficiency, reliability, and durability. We represent product lines for every application—both on-highway and off-highway. From big rigs to coach buses to RVs—we’ll help you find the heavy duty transmission you’re after.

  • 1000 – 3000 PTS (Pupil Transportation/Shuttle) Series
  • 1000 – 4700 RDS (Rugged Duty) Series
  • 1000 – 4500 HS (Highway) Series
  • 1000 – 4800 EVS (Emergency Vehicle) Series
  • 1000 – 4000 MH (Motor Home) Series

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