6900 FEATURES AT A GLANCE

THREADED SPRING PINS
Greaseable threads prevent spring from moving side to side within the shackle. Our exclusive design threads the pins directly into the spring bushing providing much more stability, improved feel and overall handling.

THE LARGEST DOOR OPENINGS
…that make it easier and safer to get in and out of the truck.

FORGED STEEL DOOR HINGES
Internally mounted protection from the elements. Greater durability to prevent sagging — a common problem with piano hinges.

DOUBLE DOOR SEALS
Both the door and the cab have a weather seal that covers its perimeter. This double seal helps maximize the efficiency of our HVAC systems and provides a quieter ride.

GRADE 8 FRAME FASTENERS
Grade 8 fasteners allow for optional equipment to be installed on the frame, and retorqued in the field as needed.

WIRING STAND OFFS
Our wiring and air bundles are supported off the frame rail. This allows debris to pass behind the bundle, eliminating the possibility of abrasion which can lead to electrical and air failures.

LASER-ETCHED CHASSIS WIRING
Laser etching and color coding ensures ability to troubleshoot wiring issues for the life of the truck.

CAB INSULATION AND SOUNDPROOFING
Barium insulation is placed between the double walled steel cab. This increases the thermal and acoustic insulation of the truck. Our floor pads are thick which further improves the quiet ride of a Western Star.

IN-CAB BLOWER MOTOR
Protected in the cab rather than being on the firewall and exposed to elements.

MARINE-GRADE ROCKER SWITCHES
Large waterproof switches are easy to operate with gloves on and are protected from water and salt which can create shorts.

SUSPENDED PEDALS
Suspended brake, clutch and accelerator pedals are easy to clean, and prevent objects from becoming lodged behind pedals — a great safety feature.

POWER DISTRIBUTION MODULES
The PDM and fuses are easily accessed by removing a panel on the passenger side dash. This allows you to sit comfortably in the cab when working on fuses rather than accessing them in an exterior location.

TOW PIN
Integral to the front closing cross member, our towing pins withstand 65k lbs of line pull from a 45 degree angle. The centralized pin equalizes pulling force between the frame rails.

OUTBOARD CAB MOUNTS
Placed as wide as possible to maximize lateral stability. Provides a more comfortable ride on rough terrain and reduces body roll in turns.

HINGED DASH
Provides quick access to wiring for service.

REPLACEABLE GRILLE BARS
Bars can be replaced one a time rather than having to replace a complete grille.

NODAL ENGINE MOUNTING
Our power units are mounted on clutch housing instead of fly wheel housing which supports the power unit closer to the output shaft of the transmission where the torque is greater. This results in less frame flex and a better ride.

J-BRACKETS AND RIBBED STRAPS
Western Star fuel tanks ride on j-brackets and are held onto the bracket with steel straps that have ribbed isolators which increases the grip on the tank to prevent tank roll.

HONEYCOMB SLEEPER WALL
A polypropylene honeycomb material is sandwiched between two sheets of aluminum. This construction results in the strongest and lightest sleeper material in the industry. Airplane bulkheads use this same strong, lightweight construction.

RECESSED BOLT HEADS
A polypropylene honeycomb material is sandwiched between two sheets of aluminum. This construction results in the strongest and lightest sleeper material in the industry. Airplane bulkheads use this same strong, lightweight construction.
6900 SPECIFICATIONS
CHOOSE A CONFIGURATION:
Standard | Options | AWD package | |
---|---|---|---|
BBC | 141″ | ||
Wheelbase | Up to 486″ | ||
BA | 59″ | ||
TAS | 72″ | ||
Configuration | 8×4, 10×6 | 8×8 | |
Engine | Detroit Series 60 Tier III, 14L (425-500 hp 1475-1550 lb-ft) | Detroit DD15, 14.8L, (455-505 hp 1550-1750 lb-ft) Detroit DD16, 15.6L, (475-600 hp 1850-2050 lb-ft) | |
Transmission | Eaton Fuller Manual | Allison Automatic | Allison Automatic |
Cab Type | Severe Duty Galvanealed Steel with bonded windshield | ||
Cab Interior | Black Trim w/ Grey Upholstery | Grey Trim w/ Maple Leaf Red Upholstery Grey Trim w/ Pacific Forest Green Upholstery Grey Trim w/ Smoky Mountain Gray Upholstery Tan Trim w/ Prairie Buckskin Upholstery | |
Hood | Fiberglass Hood with LH and RH Full Length Butterfly Openings | ||
Exhaust | RH outboard mid-chassis-mounted horizontal | ||
Steering | Dual main gears with dual auxiliary gears | ||
Front Axle | Tandem 44,000 lbs | Tandem 40,000 lbs | |
Rear Axle | Tandem 70,000-110,000 lbs Tridem 69,000 lbs | ||
Front Suspension | Slippered 36,000 and 40,000 lbs | ||
Rear Suspension | Tandem 65,000-110,000 lbs | Tridem Air Ride 69,000 lbs | |
Brakes | WABCO Anti-lock Braking System (ABS) with or without traction enhancement | ||
Frame | Double-channel @ 3.2 million RBM and 4.5 million RBM | Triple-channel @ 5.6 million RBM | |
Fuel Tanks | 100-150 gallon (378-567 liter) aluminum – RH or LH | 90-120 gallon (340-453 liter) steel – RH or LH | |
DEF Tank | 23 gallons (87 liters) |
Standard | Options | AWD package | |
---|---|---|---|
BBC | 141″ | ||
Wheelbase | Up to 486″ | ||
BA | 59″ | ||
Configuration | 6×4, 6×6, 8×4, 8×6, 8×8, 10×6 (Truck or Tractor) | 6×6 | |
Engine | Detroit Series 60 Tier III, 14L, (425-500 hp 1475-1550 lb-ft) | Detroit DD15, 14.8L, (455-505 hp 1550-1750 lb-ft) Detroit DD16, 15.6L, (475-600 hp 1850-2050 lb-ft) Cummins ISX15, 15.0L, (400-600 hp 1450-2050 lb-ft) | |
Transmission | Eaton Fuller (10, 11, 13, 15 and 18-speed) | Allison Automatic 4000, 4500 & 4700 RDS | Allison Automatic |
Cab Type | Severe Duty Galvanealed Steel with bonded windshield | ||
Cab Interior | Black Trim w/ Grey Upholstery | Grey Trim w/ Maple Leaf Red Upholstery Grey Trim w/ Pacific Forest Green Upholstery Grey Trim w/ Smoky Mountain Gray Upholstery Tan Trim w/ Prairie Buckskin Upholstery | |
Hood | Fiberglass Hood with LH and RH Full Length Butterfly Openings | Heavy-Duty Non-Sloping Hood | |
Front Axle | Meritor single 20,000 lbs. | Dana Spicer single 22,000-24,000 lbs. Sisu single 28,000 lbs. Dana Spicer tandem 44,000 and 52,800 lbs. Sisu tandem 61,600 lbs | Single 23,000-28,000 lbs |
Rear Axle | Meritor tandem 46,000-70,000 lbs | Meritor tridem 69,000 lbs Sisu tandem 70,000 lbs Sisu tridem 105,600 lbs Axletech tandem 85,000-110,000 lbs | |
Front Suspension | Flatleaf 21,000-28,000 lbs. | Slippered Tandem 36,000 lbs. | Slippered single or tandem, 22,000-36,000 lbs |
Rear Suspension | Hendrickson 46,000 / 50,000 / 52,000 / 65,000 / 85,000 / 110,000 lbs. | Chalmers 46,000 / 52,000 / 58,000 / 85,000 / 100,000 lbs. Neway 52,000 / 78,000 / 90,000 lbs. | Tandem axle 65,000-110,000 lbs |
Brakes | WABCO 4S/4M and 6S/6M Anti-lock Braking System (ABS) with and without traction enhancement | ||
Frame | Double-channel @ 4.5 million RBM | Triple-channel @ 5.6 million RBM Quad-channel @ 6.7 million RBM | |
Fuel Tanks | 100-150 gallon (378-567 liter) aluminum – RH or LH | 90-120 gallon (340-453 liter) steel – RH or LH | |
DEF Tank | 23 gallons (87 liters) |
- TS TWIN-STEER
Standard
Options
AWD package
BBC 141″ Wheelbase Up to 486″ BA 59″ TAS 72″ Configuration 8×4, 10×6 8×8 Engine Detroit Series 60 Tier III, 14L (425-500 hp 1475-1550 lb-ft) Detroit DD15, 14.8L, (455-505 hp 1550-1750 lb-ft)
Detroit DD16, 15.6L, (475-600 hp 1850-2050 lb-ft)Transmission Eaton Fuller Manual Allison Automatic Allison Automatic Cab Type Severe Duty Galvanealed Steel with bonded windshield Cab Interior Black Trim w/ Grey Upholstery Grey Trim w/ Maple Leaf Red Upholstery
Grey Trim w/ Pacific Forest Green Upholstery
Grey Trim w/ Smoky Mountain Gray Upholstery
Tan Trim w/ Prairie Buckskin UpholsteryHood Fiberglass Hood with LH and RH Full Length Butterfly Openings Exhaust RH outboard mid-chassis-mounted horizontal Steering Dual main gears with dual auxiliary gears Front Axle Tandem 44,000 lbs Tandem 40,000 lbs Rear Axle Tandem 70,000-110,000 lbs
Tridem 69,000 lbsFront Suspension Slippered 36,000 and 40,000 lbs Rear Suspension Tandem 65,000-110,000 lbs Tridem Air Ride 69,000 lbs Brakes WABCO Anti-lock Braking System (ABS) with or without traction enhancement Frame Double-channel @ 3.2 million RBM and 4.5 million RBM Triple-channel @ 5.6 million RBM Fuel Tanks 100-150 gallon (378-567 liter) aluminum – RH or LH 90-120 gallon (340-453 liter) steel – RH or LH DEF Tank 23 gallons (87 liters) - XD EXTREME DUTY
Standard
Options
AWD package
BBC 141″ Wheelbase Up to 486″ BA 59″ Configuration 6×4, 6×6, 8×4, 8×6, 8×8, 10×6 (Truck or Tractor) 6×6 Engine Detroit Series 60 Tier III, 14L, (425-500 hp 1475-1550 lb-ft) Detroit DD15, 14.8L, (455-505 hp 1550-1750 lb-ft)
Detroit DD16, 15.6L, (475-600 hp 1850-2050 lb-ft)
Cummins ISX15, 15.0L, (400-600 hp 1450-2050 lb-ft)Transmission Eaton Fuller (10, 11, 13, 15 and 18-speed) Allison Automatic 4000, 4500 & 4700 RDS Allison Automatic Cab Type Severe Duty Galvanealed Steel with bonded windshield Cab Interior Black Trim w/ Grey Upholstery Grey Trim w/ Maple Leaf Red Upholstery
Grey Trim w/ Pacific Forest Green Upholstery
Grey Trim w/ Smoky Mountain Gray Upholstery
Tan Trim w/ Prairie Buckskin UpholsteryHood Fiberglass Hood with LH and RH Full Length Butterfly Openings Heavy-Duty Non-Sloping Hood Front Axle Meritor single 20,000 lbs. Dana Spicer single 22,000-24,000 lbs.
Sisu single 28,000 lbs.
Dana Spicer tandem 44,000 and 52,800 lbs.
Sisu tandem 61,600 lbsSingle 23,000-28,000 lbs Rear Axle Meritor tandem 46,000-70,000 lbs Meritor tridem 69,000 lbs
Sisu tandem 70,000 lbs
Sisu tridem 105,600 lbs
Axletech tandem 85,000-110,000 lbsFront Suspension Flatleaf 21,000-28,000 lbs. Slippered Tandem 36,000 lbs. Slippered single or tandem, 22,000-36,000 lbs Rear Suspension Hendrickson 46,000 / 50,000 / 52,000 / 65,000 / 85,000 / 110,000 lbs. Chalmers 46,000 / 52,000 / 58,000 / 85,000 / 100,000 lbs.
Neway 52,000 / 78,000 / 90,000 lbs.Tandem axle 65,000-110,000 lbs Brakes WABCO 4S/4M and 6S/6M Anti-lock Braking System (ABS) with and without traction enhancement Frame Double-channel @ 4.5 million RBM Triple-channel @ 5.6 million RBM
Quad-channel @ 6.7 million RBMFuel Tanks 100-150 gallon (378-567 liter) aluminum – RH or LH 90-120 gallon (340-453 liter) steel – RH or LH DEF Tank 23 gallons (87 liters)
6900 POWERTRAINS
SPECIFICATIONS | |
---|---|
Horsepower | 475-600 hp |
Torque | 1850-2050 lb-ft |
Configurations | Inline 6 cylinder |
Displacement | 952 cu. in. (15.6 L) |
Compression Ratio | 17:1 |
Bore | 5.47 in. (139 mm) |
Stroke | 6.73 in. (171 mm) |
Weight | 2880 lb (1306 kg) |
Electronics | DDEC 10 |
Oil Capacity | 45.5 qt. (43 L) |
Dimensions |
SPECIFICATIONS | |
---|---|
Horsepower | 425-500 hp |
Torque | 1475-1550 lb-ft |
Configurations | Inline 6 cylinder |
Displacement | 855 cu. in. (14.0 L) |
Compression Ratio | 16:1 |
Bore | 5.24 in. (133mm) |
Stroke | 6.61 in. (168 mm) |
Weight | 2681 lb (1216 kg) |
Electronics | DDEC V |
Oil Capacity | 42 qt. (39.7 L) |
Dimensions |
- DETROIT DD16
SPECIFICATIONS
Horsepower 475-600 hp Torque 1850-2050 lb-ft Configurations Inline 6 cylinder Displacement 952 cu. in. (15.6 L) Compression Ratio 17:1 Bore 5.47 in. (139 mm) Stroke 6.73 in. (171 mm) Weight 2880 lb (1306 kg) Electronics DDEC 10 Oil Capacity 45.5 qt. (43 L) Dimensions - Detroit Series 60
SPECIFICATIONS
Horsepower 425-500 hp Torque 1475-1550 lb-ft Configurations Inline 6 cylinder Displacement 855 cu. in. (14.0 L) Compression Ratio 16:1 Bore 5.24 in. (133mm) Stroke 6.61 in. (168 mm) Weight 2681 lb (1216 kg) Electronics DDEC V Oil Capacity 42 qt. (39.7 L) Dimensions