Transmission Service, Rebuild, Overhauls & Repairs

When you combine the finest products on the market with a higher level of experience and expertise, you get the results you're looking for. W.W. Williams provides top-notch transmission services including repairs, overhauls, rebuilds and standard maintenance all designed to increase the uptime and life of your transmission.

Performance and expertise delivered daily.
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The products we represent are known throughout the world for their performance and durability. And we're known for knowing them inside and out.

Allison Transmissions

Allison Transmissions

  • 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
Allison Retran

Allison Retran

Factory remanufacturered transmissions

Learn more about Allison Retran


Weller Transmissions

Rebuilt to original factory specifications, including AT, MT, HT, MD, HD, 1K, and 2K models.

  • Assembled by Factory Trained Technicians
  • AT Uses New Genuine Allison Convertors
  • Off-the-shelf Availability for Popular Models
  • Rebuilt Valve Body tested to Factory Specs
  • 2-Year Unlimited Mile Warranty
  • Easy Inspection Core Acceptance
  • Delivery and Installation Specials Available

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Authorized Allison Transmission Distributor

W.W. Williams is your authorized Allison Transmission Distributor with trained Allison personnel offering the following services designed to optimize performance, while increasing the uptime and life of your Allison Transmission:

  • SPEC Tool © Investment Analysis
  • Driveline Spec'ing with iSCAAN
  • Allison DOC™ Software
  • Allison TransHealth™
  • Mobile Service Capabilities
  • Experienced factory trained technicians
  • Fully equipped service trucks to reduce downtime