Western Star 4900

Western Star 4900 (legacy model, SF / SB / EX / XD) per the 2018 Western Star 4900 tech sheet WS/MC-DT-531 (a copy hosted on a dealer site) and the Western Star Bodybuilder Book Rev 3.1 section 6B (March 2017), 4900SF 123 BBC layout. US spec; no GCC sheet.

USA

Side

Front

Bumper to back of cab: 123 in
Wheelbase (maximum): up to 448 in
Bumper to front axle: 33 in

Dimensions

Bumper to back of cab (BBC; EX extended hood): 132 in
Bumper to front axle (BA; SB set-back and XD): 50 in
Station 0 to back of cab (4900SF 123 BBC): 120.6 in
Station 0 to front axle centreline (4900SF): 31.0 in
Bottom of frame rail to top of cab (standard cab): 83.8 in
Bottom of frame rail to top of cab (raised cab): 87.1 in
Top of frame to top of cab: 73.2 in
Frame width (outside of frame rails): 34 in
Fenderette width: 101.0 in
Fender-only width: 95.5 in

Engine

Engine model (14.8 L, 455-505 HP, 1,550-1,750 lb-ft): Detroit DD15
Engine model (15.6 L, 500-600 HP, 1,850-2,050 lb-ft): Detroit DD16
Engine model (15.0 L, 450-605 HP, 1,450-2,050 lb-ft): Cummins X15

Transmission

Transmission: Eaton Fuller FR-13210B 10-, 13-, 15- and 18-speed; Eaton Fuller UltraShift PLUS; Allison 4000, 4500, 4700 automatic
Front axle: single 12,000-23,000 lb (Detroit, Hendrickson AIRTEK, Meritor); Meritor tandem 40,000 lb and front drive 22,000-23,000 lb with set-back axle only
Rear axle: tandem 40,000-70,000 lb; tridem 69,000-105,600 lb; single 23,000-30,000 lb (Detroit, Meritor, Sisu)

Service capacities

Fuel tank: aluminium 25 in cylindrical 60-150 gal (227-567 L); 23 in cylindrical 50-150 gal (189-567 L)
DEF tank: 6, 13 and 23 gal (23, 49 and 87 L)