Use Cases
Ideal as a long-haul freight tractor or regional prime mover, the G7 excels hauling loaded trailers between distribution centers and ports. Its combination of high power, efficient gearbox and 45-ton towing capability makes it perfect for heavy trailer towing and line-haul operations.
On-site photos



Detailed Description
The Sitrak G7 (model ZZ4186W361HF1B) is built on a 3600 mm wheelbase 4×2 chassis with a spacious, high-strength cab that seats three. With a curb mass of 6.8 tonnes and a gross vehicle mass of 18 tonnes, the rig balances payload and maneuverability—robust frame construction and a well-matched wheel track (front 2022 mm / rear 1816 mm) ensure stability under load.
Power comes from the China National Heavy Duty Truck MC13H.57-61 13.02 L inline-6 diesel engine (Euro-VI / 国六), which delivers factory specs of up to 422 kW (≈570 hp) at rated speed and is paired to the reliable ZF 16-speed manual transmission (ZF16S2231TO). With a rear axle ratio of 2.71, allowable axle loads (front 6500 kg / rear 11500 kg), a 45-ton towing capacity and a top speed of 89 km/h, this prime mover is tuned for heavy, steady line-haul performance.
Real-shot image

Detailed specifications
| Item | Specification |
|---|---|
| Model (Announcement) | ZZ4186W361HF1B |
| Drive configuration | 4×2 |
| Engine | China National Heavy Duty Truck MC13H.57-61 (13.02 L, I6, diesel) |
| Max power / rated output | 422 kW (≈570 hp) |
| Transmission | ZF 16-speed manual (ZF16S2231TO) |
| Wheelbase | 3600 mm |
| Curb weight / GVW | 6.8 t / 18 t |
| Towing / Trailing capacity | 35 t (牵引总质量) |
| Axle ratio & axle loads | Ratio 2.71 — Front allowed 6500 kg / Rear allowed 11500 kg |
| Max speed | 89 km/h |

Upgrade your vehicle
Upgrade to the Sitrak G7 and gain a tougher line-haul partner that cuts downtime and pulls heavier loads—inquire now for factory pricing, availability and optional configurations.



