Walker® Commercial Vehicle - One call. One trusted Source.
Walker® offers one of the most complete selections of OE-quality replacement exhaust and emissions control products.
Walker® Commercial Vehicle- The industry’s best product support.
Walker products optimize efficiency and performance from your hardest-working vehicles.
Walker® Commercial Vehicle has all the products & accessories needed to complete the job.
WALKER® COMMERCIAL VEHICLE: e-Catalog

WALKER® COMMERCIAL VEHICLE: Dealer Locator
WALKER® COMMERCIAL VEHICLE: Part Image Search


WALKER® COMMERCIAL VEHICLE: Product Interchange

WALKER® COMMERCIAL VEHICLE: Muffler Dimension Search

WALKER® COMMERCIAL VEHICLE: Elbow Dimension Search

WALKER® COMMERCIAL VEHICLE: Clamp Dimension Search

WALKER® COMMERCIAL VEHICLE: Walker HD
WALKER® COMMERCIAL VEHICLE: Support
The Walker team is committed to helping technicians stay on the leading edge of emissions control diagnosis and repair for commercial vehicles. From web-based resources to live technical support, Walker is a trusted partner in the success of automotive service professionals.
WALKER® COMMERCIAL VEHICLE: What is the Exhaust System?
An exhaust system is a complex system of components which perform
a series of critical emissions functions.


WALKER® COMMERCIAL VEHICLE: What is the Exhaust System?

What are the functions of the exhaust system?
  • Safely vent gases away from the vehicle
  • Reduce engine sound levels
  • Maintain engine performance
  • Reduce harmful emissions*

* Starting in 2007, regulations mandate a reduction of harmful diesel pollution from heavy-duty highway vehicles. Aftertreatment diesel emissions technologies have been employed to help reduce harmful emissions.