Back to Brands

49X

Break new ground with the all-new Western Star 49X. Introducing what isn't just the best truck Western Star has ever built, but what might be the best truck anyone has ever built. The all-new 49X was built from the ground up to bring toughness into the modern age with an impressive collection of engineering, technology and more than half a century of experience building trucks that take on any challenge, anywhere. So, whether you need a rugged vocational truck or a semi truck, and whether you've owned Western Star for years or will for the first time, it's time to break new ground with the all-new 49X.

Ask an expert View Inventory

Powered by proven performance.

The Detroit® DD15® Gen 5 is the latest achievement in industry-leading power and productivity from Detroit®. Engineered for greater reliability than ever before, the DD15 Gen 5 has the power and productivity to meet the demands of any application. Versatile enough to be used on construction sites, in quarries or in logging operations, it delivers the proven power that gets payloads moving quickly with longer maintenance intervals than ever before, all while achieving GHG21 compliance.

The safest and most advanced truck we've ever built.

Technology gets tough in the all-new 49X, the first Western Star to feature the most advanced suite of active safety systems ever offered to the vocational market — Detroit Assurance. But it not only helps keep people safe, it helps you reduce the repair and operational costs of having a truck out of service by avoiding collisions — which can mean game-changing productivity to you. SIDE GUARD ASSIST A game changer for safety in and around busy jobsites, Side Guard Assist detects objects on the passenger side of the truck and alerts the operator. Active Brake Assist 5 Active Brake Assist 5 detects distance and speed to moving and stationary objects in its path and determines if braking is necessary. It's the only system on the market that works down to 5 MPH, making it ideal for travel in congested urban areas. It also recognizes pedestrians who are about to cross in the truck's path, alerting the operator while partially braking, followed by full braking if the operator does not react. Adaptive Cruise Control to 0 MPH and Tailgate Warning Detroit Assurance technology enables state-of-the-art features such as Adaptive Cruise Control to 0 MPH and Tailgate Warning to ease driving in stop and go traffic, as well as help mitigate front and rear collisions as operators travel from one jobsite to the next.

Tough on the outside. Very comfortable on the inside.

When your trucks work some of the toughest jobs around, you can't underestimate the importance of comfort. The interior of the all-new 49X has the space, the ergonomics and the quality finish that make the long days for operators in construction, logging, quarry and other demanding environments a lot more comfortable. THE 49X DAY CAB / SLEEPER The 49X cab represents a leap forward not just in technology but in comfort. In the sleeper, you'll find a number of features and options that let you create the living and working space your operators need when they're on the job for extended times.

Active Brake Assist 5

Active Brake Assist 5 detects distance and speed to moving and stationary objects in its path and determines if warning or braking is necessary. It's the only system on the market that works down to 5 MPH*, making it ideal for travel in congested urban areas. It also recognizes pedestrians who are about to cross in the truck's path, alerting the operator while partially braking, followed by full braking if the operator does not react. * with DT12 Transmission

Side Guard Assist

A game changer for safety in and around busy jobsites, Side Guard Assist detects objects on the passenger side of the truck and alerts the operator.

Adaptive Cruise Control To 0 MPH And Tailgate Warning

Detroit Assurance technology enables state-of-the-art features such as Adaptive Cruise Control to 0 MPH* and Tailgate Warning to ease driving in stop and go traffic, as well as help reduce collisions as operators travel from one jobsite to the next. * with DT12 Transmission

Brake Hold Mode

Brake Hold Mode enhances driver safety and comfort on the road and at the jobsite. This state-of-the-art feature keeps a truck* stopped when the driver removes their foot from the brake pedal, or if their foot unintentionally slips off. * with DT12 Transmission