Dimensions
| Configuration | Standard | Optional |
|---|---|---|
| Drive | 8×4 | 8×4 |
| BBC | 132″ | 132″ |
| BA | 50″ | 50″ |
| TAS | 72″ | 72″ |
| Wheelbase | Up to 448″ | Up to 448″ |
| Frame | Double-channel @ 3.2 million RBM and 4.5 million RBM |
Western Star 4900 TS Cab
| Configuration | Standard | Optional |
|---|---|---|
| Cab Type | Severe Duty with bonded windshield | |
| Cab Interior | Obsidian Black Trim with Grey Upholstery | Grey Trim with Maple Leaf Red Upholstery / Grey Trim with Smoky Mountain Gray Upholstery / Tan Trim with Prairie Buckskin Upholstery |
| Hood | Fiberglass Traditional Non-Sloping Hood |
Engine Details
| Configuration | Standard | Optional |
|---|---|---|
| Number Of Cylinders | 6 | 6 |
| Engine Make | Detroit Diesel | Detroit Diesel / Cummins |
| Engine Model | Detroit DD15 | Detroit DD16 / Cummins ISX15 |
| Displacement | 14.8L | 15.6L / 15.0L |
| Power | 400-505 hp | 500-600 hp / 400-600 hp |
| Power Measured @ | 1800 rpm | 1800 rpm / 1900 rpm |
| Peak Torque | 1550-1750 lb-ft | 1850-2050 lb-ft / 1450-2050 lb-ft |
| Torque Measured @ | 1100 rpm | 975 rpm / 1200 rpm |
| Aspiration | Turbocharged | Turbocharged |
Transmission
| Configuration | Standard | Optional |
|---|---|---|
| Drive | 8×4 | |
| Transmission | Eaton Fuller Manual | Allison Automatic |
| Front Axle | Tandem 40,000-44,000 lb | |
| Rear Axle | Tandem 46,000-70,000 lb | Tridem 69,000 lb |
| Front Suspension | Slippered 36,000, 40,000 and 44,000 lb | |
| Rear Suspension | Tandem 46,000-65,000 lb | Tridem Air Ride 69,000 lb |
| Brakes | WABCO 4S/4M and 6S/6M ABS with and without traction enhancement |
Service Refill Capacities
| Fuel Tank Capacity | 60-150 gal (227-567 L) |
| Fuel Tank Type | Aluminum 25″ cylindrical tank – RH or LH |
| DEF Tank Capacity | 23 gal (87 L) |
