Prime Mover — Sitrak G7S Series
Sitrak G7S 540hp 6x4 Prime Mover
High-performance long-haul prime mover. 540HP MAN MC13 engine with 12-speed ZF AMT. Built for interstate freight, B-double, and heavy haulage operations across Australia.
| Model | MC13.54-61 |
| Displacement | 12.419L |
| Power Rating | 397 kW / 1,900 rpm (540HP) |
| Max Torque | 2,500 Nm @ 1,050–1,350 rpm |
| Standard | Euro 6 |
| Model | ZF AMT — 12TX2621TD |
| Type | 12-Speed Automated Manual |
| Forward Ratios | 16.69 → 1.00 |
| Reverse Ratios | 15.537 / 12.033 |
| Retarder | Voith INTARD3 (Standard) |
| GVM | 25,000 kg |
| GCM | 90,000 kg |
| Front Axle Load | 7,000 kg |
| Rear Axle Load | 18,000 kg |
| Fuel Tank | 600L + 380L dual tank |
| AdBlue Tank | 90L |
| Drive Axle Model | MCY13BES |
| Axle Ratio | 3.08 (opt: 2.85 / 3.7) |
| Differential Lock | Diff lock + Cross lock |
| Front Axle | VPD71DS |
| Configuration | 6×4 |
| Front Suspension | Non-independent, 3-leaf parabolic |
| Rear Suspension | Non-independent, 8 air bags |
| Steering Model | Recirculating ball hydraulic |
| Steering Ratio | 22.2 – 26.2 : 1 |
| Max Pump Pressure | 18,300 kPa |
| Working Pressure | 1,000 kPa |
| Drive Brake Type | Dual circuit |
| Brake Adjustment | EBS / ESC / EBL / ASR |
| Parking Brake | Spring stored energy air cut |
| Assistant Brake | EVB Engine Valve Brake |
| Cabin Model | G7S-E |
| Seating | 2 |
| Turning Radius | 3,040 mm |
| Seat Type | ISRI Ventilated & Heated |
| Refrigerator | 20L (Standard) |
| Lighting | Full LED |
| Frame Type | Ladder frame |
| Main Beam | 270×85×8 mm |
| Frame Width Front | 942 mm |
| Frame Width Rear | 762 mm |
| Voltage | 24V |
| Battery | 2×12V / 240Ah |
| Max Speed | 100 km/h |
| Min Turning Diameter | 15.5 m |
| Max Climb Gradient | 35% |
| Trailer Brakes | EBS to rear (Included) |
540HP MAN MC13 Engine
12.4-litre inline-6 MAN engine delivering 397kW at 1,900rpm with 2,500Nm of torque. Purpose-built for sustained high-load Australian highway conditions.
12-Speed ZF AMT Gearbox
Fully automated ZF 12TX2621TD transmission with smooth, precise shifts under load. Reduces driver fatigue on long interstate runs while maximising fuel efficiency.
Voith Retarder — Standard
INTARD3 Voith retarder fitted as standard. Provides sustained braking on long descents without brake fade, extending pad life and improving safety under GCM loads.
Full EBS / ESC / ASR Suite
Electronic braking, stability control, and anti-slip regulation working together for maximum safety at GCM weights. Includes WABCO radar and AEBS emergency braking.
Luxury G7S-E Sleeper Cab
ISRI ventilated and heated seat, top cooler, 20L refrigerator, and full LED interior lighting as standard. Built for driver comfort on multi-day interstate operations.
Quadrangle Camera + WABCO Radar
360-degree quadrangle camera system combined with WABCO radar for blind-spot detection and forward collision warning. Meets Australian ADR safety requirements.
980L Dual Fuel Tank Capacity
600L + 380L dual fuel tanks giving a combined 980L capacity. Extended range between stops for interstate and transcontinental operations without frequent refuelling.
Diff Lock + Cross Lock
Inter-wheel and inter-axle differential locks with cross locks for maximum traction in demanding off-highway and loaded site conditions. Driver-controlled from cab.
| Overall Length | 7,042 mm |
| Overall Width | 2,500 mm |
| Overall Height (empty) | 3,980 mm |
| Wheelbase | 3,200 + 1,400 mm |
| Front Track Width | 2,041 mm |
| Rear Track Width | 1,842 mm |
| Front Overhang | 1,492 mm |
| Min Ground Clearance | 257 mm |
| Approach Angle | 19° |
| Departure Angle | 22° |
| Min Turning Diameter | 15.5 m |
| Max Speed | 100 km/h |
| Max Climb Gradient | 35% |
| Frame Type | Ladder frame |
| Main Beam Cross-Section | 270 × 85 × 8 mm |
| Frame Width (Front) | 942 mm |
| Frame Width (Rear) | 762 mm |
| Cabin Turning Radius | 3,040 mm |
Interested in the G7S 540 6x4 Prime Mover?
Talk to our team at Dandenong South about pricing, availability, and finance options. Stock on hand — no long wait times.
