GIVE IMPOSSIBLE THE DAY OFF.

When you need tackle the biggest and toughest jobs, there’s only one truck out there – the Western Star 6900. As a tractor, it can pull loads over 500,000 pounds all day long. And with body and it can move 80,000. Add in the engine choices and build options,
and you’ve got a truck that’s as versatile as it is powerful.

6900 RESOURCES

6900 ENGINES

Detroit DD16

6900 SPECIFICATIONS

STANDARD OPTIONS AWD PACKAGE
BBC 141″
Wheelbase Up to 486″
BA 59″
TAS 72″
Configuration 8×4, 10×6 8×8
Engine Detroit DD16, 15.6L, (475-600 hp 1850-2050 lb-ft) Detroit DD15, 14.8L, (400-505 hp 1550-1750 lb-ft)
Transmission Eaton Fuller Manual Allison Automatic Allison Automatic
Cab Type Severe Duty with bonded windshield
Cab Interior Obsidian Black Trim w/ Grey Upholstery Grey Trim w/ Maple Leaf Red 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 DD16, 15.6L, (475-600 hp 1850-2050 lb-ft) Detroit DD15, 14.8L, (400-505 hp 1550-1750 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 with bonded windshield
Cab Interior Obsidian Black Trim w/ Grey Upholstery Grey Trim w/ Maple Leaf Red 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 gallon (87 liter)