Western Star 49X -- The most advanced vocational truck we've ever built

Break new ground with the 49X

Introducing what isn't just the best truck we've ever built, but what might be the best truck anyone has ever built. The entire X-Series line of trucks 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 49X.

Built with one goal in mind

We spent half a decade designing and engineering the X-Series line of trucks to be the best vocational trucks on the market. Period. To achieve that, they had to meet seven benchmarks we established at the start of the project. And we put them to the test to make sure they delivered on every one of them.

designed for upfit

Legendary Durability

Purpose-Built

Superior Operator Comfort Front Facing

Maximized Uptime

Best-in-Class Safety

Proven Powertrain Options

Take a walkaround without even standing up.

Experience a 360-degree view of the 49X with the options and color of your choice.
It's the closest you can get until you're standing next to a real one.

Colors and materials are for reference only. Actual selection options may vary. See your Western Star dealership for complete details.

49X Specifications

49X Sleeper Options

36" Trench-Style Low Roof

48" Mid Roof

60" Mid Roof

72" Stratosphere High Roof

Open Specifications

CAB

X-Series steel-reinforced aluminum cab with X-Series steel door
Trench-style low roof with lowered center section for optimal packaging of over cab equipment
One-piece roped-in windshield
Optional impact-resistant and heated windshields available
Optional single or high-visibility three-piece rear window

INTERIOR TRIM LEVELS

X-Series Base
- Mordura cloth seat
- Vinyl sleeper upholstery
- Standard insulation
- Standard LED cab lighting
- Black finish steering wheel switches
- Black finish dash gauge bezels
- Carbon with black trim accents
X-Series Premium
- Laredo leather seats
- Upgraded sleeper upholstery
- Premium insulation
- Premium LED cab lighting
- Bright finish steering wheel switches
- Bright finish dash gauge bezels
- Premium teak trim

INTERIOR COLORS

Quarry Grey
Charcoal Black
Timber Brown
(available on Premium Package only)

HOOD

Impact-resistant, durable, lightweight molded resin hood with sloped high-visibility design
ISO TECH Hood Suspension System
Standard with locking hood strut

GRILLE

Radiator-mounted steel grille with stainless steel surround

HVAC

Best-in-class HVAC with 5 face outlets, 4 floor outlets, 2 sidewindow defrost outlets and 10 blower speeds
Available only on sleepers, optional Idle-Free Dual HVAC that provides up to 10 hours of cooling or 34 hours of heating when parked

AIR INTAKE

Engine mounted air intake, plus optional hood-mounted pre-cleaners deliver improved dust capacity

ENGINE

Detroit^® DD15^®, 400-505 HP, 1550-1850 lb-ft
Detroit^® DD16^®, 500-600 HP, 1850-2050 lb-ft
Cummins X12, 350-500 HP, 1450-1700 lb-ft
Cummins X15, 400-605 HP, 1450-2050 lb-ft

TRANSMISSION

Detroit^® DT12^®-V and Detroit^® DT12^®-VX
Allison Automatic 4000, 4500, 4700
Eaton Fuller Manual 10- 13- 18-speed; 8LL and 9ALL
Eaton Ultrashift PLUS and Endurant AMT

POWER TAKE-OFFS (PTOS)

Intuitive and simple to use PTO control system that makes programming easy
FEPTO and REPTO available
Factory installed transmission PTO

FRONT AXLE

Detroit^® single 12,000-23,000 lbs
Meritor single 12,000-22,000 lbs

REAR AXLE

Detroit^® single 12,000-23,000 lbs
Detroit^® tandem 40,000-44,000 lbs
Dana tandem 52,000-60,000 lbs
Meritor single 21,000-30,000 lbs
Meritor tandem 40,000-58,000 lbs
Meritor tridem 69,000-78,000 lbs

FRONT SUSPENSION

Flatleaf 14,600-23,000 lbs
Taperleaf 12,000-20,000 lbs

REAR SUSPENSION

AirLiner^® single 21,000-23,000 lbs
AirLiner^® tandem 40,000-46,000 lbs
AirLiner^® tridem 69,000 lbs
Chalmers tandem 40,000-70,000 lbs
Flatleaf single 23,000-30,000 lbs
Hendrickson tandem 40,000-52,000 lbs
Neway single 26,000 lbs
Neway tandem 46,000-52,000 lbs
Neway tridem 69,000-78,000 lbs
TufTrac tandem 40,000-52,000 lbs

BRAKES

WABCO^® 4S/4M and 6S/6M Anti-lock Braking System (ABS) with and without traction enhancement
Air Disc Brakes

ACTIVE SAFETY

Detroit Assurance^® suite of safety systems including Active Brake Assist 5, Adaptive Cruise Control to 0 MPH, Side Guard Assist, Tailgate Warning, Lane Departure Warning, Automatic Headlights/Wipers and Intelligent High Beams, available with Detroit^® engines
WABCO^® OnGuard including collision mitigation and adaptive cruise control, optional with Cummins engines

FRAME

Single-channel RBM @ 1.8-3.8MM inch-lbs
Inner C-channel reinforced RBM @ 4.4-5.5MM inch-lbs
8"-30" parent rail front frame extensions options available

BUMPERS

49X offers three bumper styles in various finishes and thicknesses, as well as a boxed-in bumper with an optional grille guard for logging applications. All 49X bumpers are tapered at the wheel ends for ground clearance and weight savings

Standard 1/8" stainless steel vocational
Optional 3/16" painted steel
Optional 1/4" plain or polished aluminum
Optional 5/16" bright steel severe service
Optional 3/8" painted steel severe service
Optional 1/4" painted or bright steel logger

FRONT TOW DEVICES

There are a number of towing device options mounted directly to the front frame head for increased strength and durability, with ratings from 80,000-140,000 lbs

Dual Removable Tow Hoops, 80,000 lbs
Center Tow Pin, 80,000 lbs
High Capacity Center Tow Pin, 140,000 lbs

FUEL TANKS

Aluminum 25" cylindrical, plain or polished
LH 60-150 gallon (227-568 liter)
RH 60-, 70-, 80-, 100-, 120-, 150-gallon (227-, 265-, 303-, 379-, 454-, 569-liter)
Standard forward mounting; optional aft mounting
LH and RH split fuel/hydraulic tank options available
LH and/or RH auxiliary fuel supply and return ports available

DEF TANK

8-, 13- and 23-gallon (23-, 49- and 87-liter)
Standard forward mounting
Optional LH or RH aft mounting

UPFIT EFFICIENCY FEATURES

All-new QuickFit Interface System
- Easier to integrate truck equipment with the vehicle's electrical power and communication sources
- Advanced multiplexed electrical system for easy Truck Equipment Manufacturer (TEM) interface, programming and power access
- Auxiliary in-cab backwall mounted E-Vault available, which houses:
  - QuickFit Programmable Controllers
  - QuickFit Interface Connectors
  - TEM-specific power distribution module
  - High-current power access

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The Western Star 49X

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Proven like no other

The Western Star X-Series family of trucks have been tested and validated more than any Western Star before. We tested them. Then tested them again and again, in every imaginable condition until we made sure they would pass our tests, and yours.