Writer:Alan Chen(Foton Auman dealer)
Urban distribution in Buenos Aires is a stop-start business: congestion, tight delivery windows and a driver who touches the clutch hundreds of times a shift make the gearbox a more important specification than the horsepower. Two Auman cargo trucks appear in the product data for this market — the 12-tonne Aumark, listed with an automatic gearbox, and the 10.5-tonne Aumark S with a declared ZF6S600 automatic — and both answer the duty cycle with the same core idea: take the shifting away from the driver.
The specification table comes first here for an unusual reason: both listings declare their ratings and drivelines end to end — 12,000 kg against 10,500 kg — so the decision is not about which fields are blank but about which declarations can be trusted, because the 12-tonne's own title and specification disagree about which gearbox it actually carries. Seeing exactly which fields are declared on each, and where the listings contradict themselves, is the first analytical step a buyer should take — and it shapes everything that follows.
| Foton Aumark Light Truck | Foton Aumark S Cargo | |
|---|---|---|
| Engine | ISF4.5S5185 | ISF3.8s4R168 |
| Displacement | 4.5 L | 3.76 L |
| Power | 136 kW (185 hp) | 125 kW (168 hp) |
| Torque | 700 N·m | 600 N·m @ 1300~1700 rpm |
| Emission | Euro V | Euro IV |
| Gearbox | DC7J80TA | ZF6S600 |
| Final drive | 3.909 | 4.33 |
| GVW | 12,000 kg | 10,500 kg |
| Wheelbase | 4800 mm | 4500 mm |
| Suspension | leaf spring | Front & Rear Leaf Spring Suspension |
| Brakes | air brake | Air Brake |
| Listed price | $26,600 | $22,453 |
The 12-tonne Aumark declares an ISF4.5S5185 Fukang engine at 4,500 cc and 136 kW (185 hp), 700 N·m, Euro V with an SCR route, a 3.909 final drive, a 200-litre tank, 12,000 kg GVW, a 4,800 mm wheelbase, 245/70R19.5 tyres, a sleeper cab, left-hand drive and air brakes. The 10.5-tonne Aumark S declares an ISF3.8s4R168 Foton Cummins engine at 3,760 cc and 125 kW (168 hp), 600 N·m from 1,300 to 1,700 rpm, Euro IV, a ZF6S600 gearbox with a 4.33 final drive, a 4,500 mm wheelbase, a 200-litre tank, a single-row cab, leaf-spring suspension, air brakes and 235/75-R17.5-14 tyres — with a declared 10,500 kg GVW behind the 10.5-tonne title.
The pattern is unusually even: both listings declare engine, gearbox, ratio, rating, tank, wheelbase, tyres, suspension and brakes, so the comparison runs on declared figures rather than dealer questions. One contradiction sits on top of that: the 12-tonne's title advertises a ZF automatic, while its specification table names a DC7J80TA gearbox from Sinotruk Dachi — settle which unit ships before anything else.
Both trucks are listed with automatics — and for Buenos Aires duty that is the right specification, not a luxury. In congested urban traffic the automated manual removes clutch wear from the cost of ownership, holds consistent shift quality across a fleet, and is what retains drivers who would otherwise refuse a day of stop-start crawling. Neither listing declares consumption, so the fuel case cannot be computed; what can be said is that automated manuals typically return their premium in driveline life and driver retention on exactly this duty cycle.
The two gearboxes are documented very differently. The Aumark S declares the ZF6S600 with a 4.33 final drive. The 12-tonne declares a DC7J80TA in its specification table while its title advertises a ZF automatic — two different gearbox families, and the difference matters for spares, service schedules and clutchless operation in traffic. Get the gearbox model of the actual offered unit in writing before comparing anything else.
The 12-tonne unit is rated 12,000 kg GVW against the Aumark S's declared 10,500 kg — a 1,500 kg difference in rating that becomes the real decision once kerb weight and body are subtracted. Neither listing declares kerb weight, so payload after the body cannot be computed from the data on either truck: that is the first dealer question for both, and the answer will usually decide between them more decisively than any declared figure.
For express and parcel work where drops are frequent and loads light, the Aumark S's smaller rating is rarely the constraint. For distribution work that has grown toward palletised volume, the 12-tonne unit's extra rating is the margin that keeps a truck legal — and legality, not brochure capacity, is what keeps it on the road.
The listings price at $26,600 for the 12-tonne and $22,453 for the Aumark S — $4,147 apart, with the dearer truck declaring a full driveline including the stronger Euro V with SCR, and the cheaper truck declaring its own engine, torque, gearbox model, ratio, 10,500 kg rating and tyres. On the data both are verifiable specifications — but only the 12-tonne carries a contradiction to settle, and only it carries the Euro V paperwork.
What neither listing declares is kerb weight, and that is the number that turns a rating into a payload: ask for it in writing for your exact configuration on both trucks. If the smaller rating fits your loads, the Aumark S is the honest purchase at $4,147 less; if your operation needs the 12,000 kg rating and the Euro V paperwork, the 12-tonne unit earns its price — with the gearbox question settled first.
Rating, documentation and paperwork. The 12-tonne unit is rated 12,000 kg GVW and declares its whole driveline plus Euro V with SCR; the Aumark S declares engine, torque, Euro IV, gearbox model, ratio, tank, brakes, a 10,500 kg rating and tyres. The gap is 1,500 kg of declared rating, the emissions paperwork — and one contradiction to settle, because the 12-tonne's title says ZF automatic while its table says DC7J80TA.
Both are listed with automatics — the right choice for Buenos Aires stop-start duty. Only the Aumark S declares the model (ZF6S600) and the final drive (4.33) without contradiction; the 12-tonne's title says ZF automatic while its specification table names a DC7J80TA, so confirm the gearbox of the offered unit in writing.
The 12-tonne unit, by a declared 12,000 kg GVW against the Aumark S's declared 10,500 kg — 1,500 kg of rating. But neither declares kerb weight, so payload after the body cannot be computed from the data — get the kerb figure for your exact configuration from the dealer.
On the 12-tonne: the gearbox model that actually ships (title says ZF automatic, table says DC7J80TA) and its kerb weight. On the Aumark S: kerb weight. Both declare engine, gearbox, ratio, rating, tyres, suspension and brakes; for trucks at $22,453 and $26,600 the kerb figure is the number a fleet buyer needs — ask for it in writing before ordering.
For frequent-drop parcel and express work, its 10.5-tonne class is rarely the constraint — loads are light and the ZF automatic suits the duty. For palletised volume that has grown, the 12-tonne unit's rating is the margin that matters.
Tel：+8615960378211
Email：[email protected]
Address: Unit 8,room 704,NO.492,XingLinWan Road,Jimei District,XiaMen Fujian China
Address: Unit 8,room 704,NO.492,XingLinWan Road,Jimei District,XiaMen Fujian China
Email：[email protected]
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