Peterbilt 579

Peterbilt Model 579 on-highway tractor, 124 in BBC set-back front axle (579-124 SBFA), from the Peterbilt 2024 HD Body Builder Manual Rev A (May 2024) overall-dimensions drawing and the peterbilt.com 579 page; North American truck, not a Gulf-spec variant. 118 in BBC (579-118 SBFA) is also offered.

USA

power: 451 kW (605 hp)
torque: 2,779 Nm

Side

Front

Bumper to back of cab (BBC): 3.15 m
Front overhang: 1.234 m
Front of frame to front axle: 0.795 m
Front axle to back of cab: 1.882 m
Cab roof height above frame: 2.052 m
Width over mirrors: 3.063 m

Dimensions

Cab floor height above frame (From bottom of frame rail): 0.406 m
Overall width (Top view, excluding mirrors): 2.388 m
Bumper to back of cab (118 in BBC variant) (579-118 SBFA): 2.997 m
Front axle to back of cab (118 in BBC variant) (579-118 SBFA; FAX to BOC): 1.732 m
Sleeper roof height above frame (44 in low roof): 2.126 m
Sleeper roof height above frame (58 in low roof): 2.172 m
Sleeper roof height above frame (58 in high roof): 2.586 m
Sleeper roof height above frame (72 in high roof): 2.586 m
Sleeper roof height above frame (80 in high roof): 2.637 m
Sleeper length (44 in sleeper): 0.914 m
Sleeper length (58 in sleeper): 1.219 m
Sleeper length (72 in sleeper): 1.6 m
Sleeper length (80 in sleeper): 1.753 m
Cab-to-sleeper opening height (low roof) (Dimension A, walkthrough opening): 1.245 m
Cab-to-sleeper opening width (low roof) (Dimension B, walkthrough opening): 1.73 m
Cab-to-sleeper opening height (high roof) (Dimension A, walkthrough opening): 1.689 m
Cab-to-sleeper opening width (high roof) (Dimension B, walkthrough opening): 1.73 m
Sleeper headroom (80 in UltraLoft): 2.438 m
Sleeper storage volume (80 in UltraLoft): 1.98 m³

Weight

Front axle capacity: 6,622 kg
Rear axle capacity: 20,865 kg
Front axle capacity (minimum option): 5,443 kg
Rear axle capacity (minimum option): 9,525 kg
Rear tandem axle rating (PACCAR DX-40) (Tandem GAWR): 18,144 kg
Max gross combination weight (PACCAR DX-40 axle) (Axle GCW limit): 36,287 kg
Max operating weight (PACCAR MX-13 engine): 63,503 kg
Max operating weight (PACCAR MX-11 engine) (Engine maximum operating weight): 49,895 kg
Max gross combination weight (PACCAR TX-12 transmission) (Standard TX-12 limit): 49,895 kg
Max gross combination weight (PACCAR TX-12 PRO transmission): 31,751 kg
Max operating weight (PACCAR TX-18 transmission): 63,503 kg
Engine dry weight (PACCAR MX-13): 1,134 kg
Engine dry weight (PACCAR MX-11): 998 kg

Engine

Engine model: PACCAR MX-13, PACCAR MX-11, Cummins X15, Cummins X15N, Cummins ISX12N, Cummins L9N
Gross power (Cummins X15, top rating): 451 kW (605 hp)
Max torque (Cummins X15, top rating): 2,779 Nm
Displacement (PACCAR MX-13): 12.9 L
Power (PACCAR MX-13): 380 kW (510 hp)
Torque (PACCAR MX-13): 2,508 Nm
Displacement (PACCAR MX-11): 10.8 L
Power (PACCAR MX-11): 332 kW (445 hp)
Torque (PACCAR MX-11): 2,305 Nm
Displacement (Cummins X15): 15 L
Displacement (Cummins X15N): 14.5 L
Power (Cummins X15N) (Maximum rating, up to 500 hp): 373 kW (500 hp)
Torque (Cummins X15N) (Maximum rating, up to 1,850 lb-ft): 2,508 Nm
Displacement (Cummins ISX12N): 11.9 L
Power (Cummins ISX12N) (Maximum rating, up to 400 hp): 298 kW (400 hp)
Torque (Cummins ISX12N) (Maximum rating, up to 1,450 lb-ft): 1,966 Nm
Displacement (Cummins L9N): 8.9 L
Power (Cummins L9N) (Single rating): 239 kW (320 hp)
Torque (Cummins L9N) (Single rating): 1,356 Nm

Transmission

Transmission: PACCAR TX-12 PRO automated (engines up to 1,000 lb-ft, GCWR up to 70,000 lb)
Sleeper options: 44 in to 80 in; 80 in UltraLoft
Transmission (PACCAR TX-12): 12-speed automated, on-highway fuel efficiency; 2 reverse; max engine 510 hp / 1,850 lb-ft; max GCWR 110,000 lb; system weight 657 lb (298 kg)
Transmission (PACCAR TX-12 PRO): 12-speed automated, extreme-duty clutch; max engine 455 hp / 1,700 lb-ft; max GCWR 70,000 lb; system weight 665 lb (302 kg)
Transmission (PACCAR TX-18): 18-speed automated, vocational / heavy haul; max engine 510 hp / 1,850 lb-ft; max operating weight 140,000 lb; system weight 808 lb (367 kg)
Transmission (Endurant HD): 12-speed automated, on-highway fuel efficiency
Transmission (Endurant XD): 18-speed automated, vocational, heavy haul, high performance
Transmission (Eaton FR/RT): Manual; 9, 10, 11, 13, 15 or 18 speeds
Transmission (Eaton UltraShift PLUS): Automated; 10, 11, 13 or 18 speeds
Drive axle ratio range (PACCAR DX-40): 2.47 to 3.70; 1,650 lb-ft straight torque rating, 1,850 lb-ft multi-torque rating

Capacities

Fuel tank: 568 L
Fuel tank (smallest option): 151 L
Fuel tank diameters: 20 in, 23 in or 26 in
DEF tank (small): 38.6 L
DEF tank (medium): 60.9 L
DEF tank (large): 76.1 L
DEF tank (medium aero): 52.6 L
DEF tank (large aero): 67.8 L

Service intervals

Engine oil and filter: 120,000 km
Fifth wheel (or monthly: inspect, grease): 24,000 km
Axle and gearbox first-fill oil: first change at 3,000-5,000 mi (4,800-8,000 km); level check every 15,000 mi (24,000 km)