G7 Series

SITRAK G7S 6x4 Prime Mover

Premium Long-Haul Performance for Modern Fleet Operations.

The SITRAK G7S 6x4 Prime Mover is engineered for high-efficiency interstate transport and heavy combination applications across Australia. Featuring a 12.42L high-output engine paired with a ZF TraXon automated transmission, the G7S delivers powerful torque, refined drivability and improved fuel efficiency for long-distance freight operations.

Designed with a reinforced chassis structure, advanced safety systems and air suspension stability, the G7S is built to maximise uptime while maintaining driver comfort and operational cost control.

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Overview

The G7S 6x4 Prime Mover is designed for modern linehaul fleets requiring fuel efficiency, durability and high torque output. With a powerful 12.42L engine and premium European transmission technology, it provides the performance and reliability needed for long-distance freight operations across national transport corridors.

Applications

Interstate Linehaul Transport — Optimised for long-distance freight across NSW, VIC, QLD and national corridors.
B-Double & Heavy Combination Operations — Designed to handle demanding GCM requirements and high-load applications.
Fleet & Logistics Operators — Built for high-utilisation commercial fleets requiring reliability and efficiency.
General Freight & Container Transport — Suitable for curtain-siders, skeletal trailers and refrigerated combinations.

Key Highlights

High-Performance 12.42L Engine

Engine Model: MC13.54-61
Displacement: 12.42L
Max Power: 397 kW @ 1800 rpm
Max Torque: 2500 Nm @ 1000–1400 rpm

Delivers strong low-end torque for smooth heavy-load acceleration and grade climbing.

ZF TraXon Automated Transmission

Model: ZF 12TX2621TD
12-speed AMT
Matched PTO configuration available
Ratio options: 3.08 / 3.36 / 3.7

Provides efficient shifting and reduced driver fatigue for long-haul operations.

Heavy-Duty 6x4 Driveline

GVM: 25,000 kg
Front Axle Design Load: 7,000 kg
Rear Axle Design Load: 18,000 kg
Differential Locks: Interwheel & Interaxle

Ensures reliable traction and stable load distribution.

Reinforced Frame Structure

Main Beam Cross Section: 270 × 85 × 8 mm
Frame Width: Front 942 mm / Rear 762 mm
Trapezoidal ladder-type chassis

Designed for durability under heavy-duty freight applications.

Suspension & Stability

Front: Parabolic leaf springs (3 leaves)
Rear: 8-airbag air suspension

Enhances ride comfort and cargo stability.

Advanced Safety Systems

Dual Circuit Compressed Air Brake
EBS + ESC + HSA
AEBS + LDW
NH4 PTO compatible with TraXon

Supports compliance with modern fleet safety standards.

Specifications

Weight & Capability

Kerb Weight

8,800 kg

GVM

25,000 kg

Max Speed

100 km/h

Max Gradeability

≥30%

Fuel Tank Capacity

700 + 240 L

Kerb-to-Kerb Turning Circle

15.002 m

Dimensions

Overall Length

7,042 mm

Width

2,500 mm

Height (Unloaded)

3,980 mm

Wheelbase / Bogie Axle Spread

3,200 / 1,400 mm

Front Overhang

1,492 mm

Rear Overhang

950 mm

Electrical System

Operating Voltage

24V

Alternator

28V / 120A

Batteries

2 × 12V / 240Ah

Why Choose the G7S 6x4?

The SITRAK G7S 6x4 Prime Mover delivers the ideal balance of power, efficiency and long-haul durability. With a high-output 12.42L engine, ZF TraXon transmission and advanced safety systems, the G7S is designed for fleet operators seeking reliable interstate performance and long-term operational value.

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SITRAK trucks in Sydney NSW

RUMBLE Auto is a NSW SITRAK Australia authorised dealer based in the Sydney area, supporting operators comparing SITRAK prime movers, tipper cab & chassis, mixer cab & chassis and cargo cab & chassis configurations. SITRAK has dealer coverage across New South Wales (NSW), Victoria (VIC), Tasmania (TAS), Western Australia (WA), South Australia (SA) and the Northern Territory (NT).

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