HOWO TX 6x4 dump truck (chassis ZZ3257V3847GB1): 5400x2300x1500 mm cargo box, WD615.47 371 HP engine, HW19710 transmission, MCX16ZG rear axle with a 5.451 ratio.

Payload rating, cargo volume and drivetrain ratio decide most HOWO TX procurement outcomes - and they are the three numbers most often misread, because each is written in a different unit. The 8x4 dump truck is specified in tons and cubic metres. The 6x4 dump truck is specified in millimetres of body geometry, horsepower and gear counts. The water tanker is specified in litres.

The supplied HOWO TX specification answers those questions directly. The 8x4 dump truck (chassis ZZ3317V386GB1) carries a rated load capacity of 40 tons and 25-30 CBM of cargo volume. The 6x4 dump truck (ZZ3257V3847GB1) uses a 5400x2300x1500 mm cargo box, a WD615.47 engine rated 371 HP at Euro II, an HW19710 transmission with 10 forward and 2 reverse gears, and an MCX16ZG rear axle with a 5.451 gear ratio. The water tanker (ZZ1257V464GB1) carries 20,000L to 25,000L.

What a datasheet cannot answer is whether those figures are legal, serviceable and testable on a specific jobsite and in a specific market. That gap between a specification and a procurement decision is where most HOWO TX negotiations actually fail.

What Do Payload, Volume and Gears Actually Decide?

The three variables decide two different things at once: the physical work the truck can be committed to, and the acceptance test a buyer can run when the truck arrives at the port.

Payload sets the mass target. Cargo volume sets the density range the body can serve at that mass. The drivetrain - engine rating, number of gear steps and the final drive ratio - sets whether the rated mass can actually be moved repeatedly on the grades and surfaces the project contains. A buyer who matches payload to the material but not to the terrain will usually end up with a truck that is structurally adequate and operationally slow.

In the HOWO TX range, the supplied data shows the trade-off clearly. The 8x4 leads on both mass and volume, which suits long-distance transport and off-road mining haulage. The 6x4 pairs a moderate box with a high numerical rear axle ratio, which suits sustained heavy-duty work where torque multiplication matters more than road speed. The water tanker moves the same argument onto liquid capacity.

Payload: What a 40-Ton Rating Commits On an 8x4

The HOWO TX 8x4 dump truck is stated with a rated load capacity of 40 tons and a cargo volume of 25-30 CBM on chassis ZZ3317V386GB1, with a TX-F single sleeper cab fitted with air conditioning and a safety belt. Its stated applications are mining, construction, building and road building.

Two distinctions matter for procurement. First, a rated load capacity is a manufacturer structural rating for the vehicle and body combination, not a road-law allowance. Legal payload in most markets is governed by national axle-load and gross-weight rules rather than by the body rating, so a 40-ton rated truck may be plated considerably lower in a given country. Buyers importing into Africa, Southeast Asia or the Middle East should confirm the permitted axle loading before they size a fleet against the 40-ton figure.

Second, the 25-30 CBM range is a range, not a fixed number. The body actually delivered falls somewhere inside it. A buyer who needs the upper end should have the delivered body measured at acceptance rather than assumed from the quotation, because a body at the lower end of the range will under-load on light bulk materials where volume, not mass, is the binding constraint.

Cargo Volume: Why the 6x4 Is Written in Millimetres and the 8x4 in Cubic Metres

The HOWO TX 6x4 dump truck is specified by body geometry: a cargo box of 5400x2300x1500 mm, with an 8 mm floor, 6 mm side plates and a middle lifting system. The same vehicle is described as carbon steel in body material, with the wider truck structure given as steel.

Quotation packs across the market rarely use one unit system. Some list internal body dimensions in millimetres, some list struck volume in cubic metres. When two HOWO TX configurations are compared side by side, the practical rule is to request the unit that is missing: if a supplier quotes volume only, ask for internal geometry; if the quotation gives geometry only, ask what loading volume was used to plan cycle counts. Without both, a fleet plan can be built on numbers that never meet each other.

Plate thickness is a separate procurement variable from volume, and it is the one that governs body life in abrasive work. An 8 mm floor and 6 mm sides are stated for the 6x4 box. In mining overburden, road-building aggregate and quarry haulage, the wear surface - not the nominal capacity - usually determines how many years the body survives before refurbishment. Buyers comparing quotations on price alone frequently discover the difference after the first body repair.

The middle lifting system is a stated feature rather than a description of lift geometry. Buyers who tip on graded pads versus uneven fill should confirm the lifting arrangement in the technical annex of the order, since the specification as supplied does not describe the ram configuration.

Gears and Final Ratio: Reading HW19710 and 5.451

The HOWO TX 6x4 drivetrain is stated as a WD615.47 engine producing 371 HP to Euro II, an HW19710 transmission with 10 forward and 2 reverse gears, a VGD95 front axle with drum brakes, and an MCX16ZG rear axle with a gear ratio of 5.451. Steering is left hand drive, the fuel tank is 300L with a cap lock, and tyres are 12.00R20 radial with one spare.

Each element answers a different procurement question.

Ten forward gears describe ratio spread, not top speed. A transmission with ten steps lets the engine stay closer to its efficient band as load and gradient change, which matters in continuous heavy-duty operation where the truck is rarely at a steady cruise. Two reverse gears serve the same logic in tipping and repositioning work.

The 5.451 final drive is a numerically high rear axle ratio. It multiplies engine torque at the wheels, which is what a loaded start on a ramp, a wet haul road or rough mining terrain actually requires. The trade-off is equally real: a high numerical ratio raises engine speed for a given road speed, which works against fuel economy in long-distance highway transport. Buyers whose duty cycle is dominated by trunk-road haulage should evaluate that trade-off explicitly; buyers whose duty cycle is dominated by grades, soft ground and short cycles capture the benefit.

371 HP at Euro II is the power statement and also a market-access statement. Euro II is a defined emissions stage, and a truck built to it can only be registered where that stage is accepted. This is a boundary condition rather than a performance limitation, and it should be confirmed before contracting, not after shipment.

HOWO TX 6x4 Reference Specification

Matching 6x4, 8x4 and the Water Tanker to the Jobsite

Configuration choice in the HOWO TX range is essentially a duty-cycle decision, and the supplied scenario data separates the three options by operating mode rather than by brand preference.

The jobsite conditions listed for this range are high temperature, heavy load, desert roads, mining rough terrain and humid tropical environments. Project types span road construction, mining excavation, urban infrastructure, oil transportation and municipal sanitation, with excavators, loaders, batching plants, fuel stations, bulldozers and graders named as matched equipment. Stated site requirements are high durability, low maintenance, strong load capacity and fuel efficiency optimisation - four requirements that pull in different directions when a configuration is chosen purely on purchase price.

HOWO TX water tanker (chassis ZZ1257V464GB1) with a 20,000L to 25,000L Q235 carbon steel tank, water spray and TX-F cab.

On the water tanker, the 20,000L to 25,000L band again represents a choice rather than a single build. Larger capacity reduces refill frequency on dust suppression and site water service; it also raises the mass carried per trip on the same chassis. Buyers working long haul routes to a fill point should size the tank against the route, and buyers working confined municipal or plant roads should size it against manoeuvrability. The tank material is stated as carbon steel Q235, and no potable-water or chemical-service rating is stated in the supplied specification, so buyers with those requirements should confirm suitability before ordering.

Procurement Checkpoints: Terms, Inspection and Acceptance

Commercial terms are where specification documents stop and contracts begin. The documented supply terms for QINGONG heavy truck orders are a minimum order quantity of 1 unit, immediate shipment for in-stock units, and a 30-45 day lead time for customized orders. Customization covers engine power, drive system, cargo body structure, tank volume, logo branding and colour painting, and OEM production services are available. Quality control is stated as 100% pre-shipment inspection with optional third-party inspection by SGS or BV. After-sales support comprises spare parts supply, remote technical support and an overseas service network with local agents in key countries.

The supplied specification does not establish price, Incoterms, payment schedule, warranty duration, destination-country homologation status or delivery port. These are negotiation items and should be written into the contract rather than inferred from a datasheet or a published capacity figure.

Acceptance is the second half of the checkpoint. Because the HOWO TX range shares a cab family across configurations, a delivered truck can look correct while carrying the wrong drivetrain or body. The verifiable items below are all stated in the specification and can be checked line by line against the order.

QINGONG operates 100% pre-shipment inspection with optional third-party inspection by SGS or BV before HOWO TX units are released.

Where a Specified HOWO TX Order Stops Being the Right Answer

A credible specification includes its own boundaries. Four apply here.

Emissions stage. Euro II is a fixed characteristic of the stated 6x4 drivetrain. Markets that require later emissions stages cannot register a Euro II truck regardless of payload or volume advantage, and buyers in those markets should treat the configuration as unavailable rather than negotiable.

Rated load versus legal load. A 40-ton rated load capacity describes the vehicle and body. It does not override national axle-load rules, bridge formulas or route restrictions. Fleets planned against the rating without checking local gross-weight limits frequently end up operating below the stated figure.

Drum brakes and high numerical gearing. Drum brakes on the front axle and a 5.451 final drive are consistent with heavy-load, lower-speed duty cycles. In sustained high-speed trunk-road work, buyers should weigh brake heat management and engine speed at cruise against the grade-start benefit. The supplied data provides the ratio and brake type; it does not provide test results for either, so route-specific evaluation remains a buyer task.

Channel claims. Public information about Sinotruk distribution is uneven. SINOTRUK International publishes multi-country regional sales contacts for West African markets including Senegal, Mauritania, Mali and Cote d Ivoire, but a regional contact allocation is not the same thing as a confirmed national distributor appointment, and secondary reports describing distributor networks are not a substitute for documentary authorization. Buyers should verify appointment status, territory and service capability directly rather than relying on a directory listing.

The alternative to a new, specified order is also worth naming. SINOTRUK HOWO new vehicles are stated to offer 2-3 times longer service life compared to used trucks, which shifts the comparison from purchase price to lifecycle cost and parts availability. The trade-off is upfront capital plus the documented 30-45 day lead time on customized builds, against faster availability of used units with a shorter remaining life.

Market Context: Why Channel and Parts Continuity Matter

Jinan Qingong International Trade Co., Ltd. (QINGONG) is a Jinan-based exporter of heavy-duty trucks and construction machinery, established in 2008, and an official exporter of SINOTRUK. The company states roughly 4,500 square metres of facility space, about 300 employees including 80 engineers, an annual output of 3,000 units, a 90% export ratio and exports to more than 100 countries, with subsidiaries established in Tanzania, Indonesia, Zambia and Laos since 2023.

Scale of this kind matters to a HOWO TX buyer for one reason: a truck is a fifteen-year parts relationship, not a single transaction. Sinotruk reported heavy-duty truck export volume of 134,038 units in 2024 in its 2024 annual report, and industry coverage describes the group as holding first place in Chinese heavy-duty truck exports for 21 consecutive years as of 2025. A large installed base is the precondition for spare-parts depth and independent workshop familiarity in destination markets.

A Rwanda-based customer illustrates the point in practice. Operating in mining transportation and road construction material haulage, the account took delivery of 70 units over a two-year period, received complete driver and maintenance training, reported stable vehicle operation and a reduced fleet failure rate, and subsequently placed a repeat order. The relevant procurement lesson is not the order size - it is that training and parts access, not the specification sheet, determined whether the fleet stayed productive.

Future Outlook

Procurement of heavy trucks in African and Southeast Asian growth markets is shifting from unit price toward documented configuration and verifiable channel support. Two forces drive that. Fleet operators increasingly compare lifecycle cost, which rewards body plate thickness, drivetrain-to-terrain matching and parts continuity, and importers increasingly face country-specific homologation and emissions requirements, which rewards buyers who confirm market access before contracting.

For the HOWO TX range specifically, the practical consequence is that payload, volume and gear data will keep doing double duty: as a specification for engineers, and as a contractual acceptance baseline for procurement teams. Distributors that can document both will be easier to shortlist than distributors that can only quote a price.

Frequently Asked Questions

What payload does the HOWO TX 8x4 dump truck carry?

The HOWO TX 8x4 dump truck (chassis ZZ3317V386GB1) is stated with a rated load capacity of 40 tons and a cargo volume of 25-30 CBM. It is described for mining, construction, building and road building, with a TX-F single sleeper cab fitted with air conditioning and a safety belt. Rated load capacity is the manufacturer rating for the vehicle and body; permitted road payload is set separately by national axle-load rules.

What are the cargo box dimensions of the HOWO TX 6x4 dump truck?

The HOWO TX 6x4 dump truck (chassis ZZ3257V3847GB1) is stated with a cargo box of 5400x2300x1500 mm, a floor thickness of 8 mm, side plates of 6 mm and a middle lifting system. Overall vehicle dimensions are 8400x2500x3400 mm, and the body is described as carbon steel.

Which engine and gearbox are specified for the HOWO TX 6x4?

The stated drivetrain is a WD615.47 engine producing 371 HP to Euro II, coupled to an HW19710 transmission with 10 forward and 2 reverse gears. The front axle is a VGD95 with drum brakes, the rear axle is an MCX16ZG with a 5.451 gear ratio, steering is left hand drive, the fuel tank is 300L with a cap lock, and tyres are 12.00R20 radial with one spare.

What does a 5.451 rear axle ratio mean for a HOWO TX buyer?

The 5.451 ratio on the MCX16ZG rear axle is a numerically high final drive, which increases torque at the wheels for loaded starts and gradients, matching continuous heavy-duty and off-road mining work. The same ratio raises engine speed for a given road speed, so buyers whose work is dominated by long-distance highway transport should weigh that against the grade-start benefit. The supplied specification states the ratio but does not include test data.

How much water does the HOWO TX water tanker carry?

The HOWO TX water tanker (chassis ZZ1257V464GB1) is stated with a capacity of 20,000L to 25,000L, a tank in carbon steel Q235, water spray equipment and a TX-F cab with single bunk, air conditioning and safety belts. Stated applications are construction, building, cement, road works, mining and concrete works.

What purchasing terms and acceptance criteria should be confirmed before ordering?

Documented supply terms are a minimum order quantity of 1 unit, immediate shipment for in-stock units and a 30-45 day lead time for customized orders, with customization covering engine power, drive system, cargo body structure, tank volume, logo branding and colour painting. Quality control is stated as 100% pre-shipment inspection with optional third-party inspection by SGS or BV, and after-sales support covers spare parts supply, remote technical support and an overseas service network with local agents in key countries. Price, Incoterms, payment schedule, warranty duration and destination homologation are not established by the specification and should be fixed contractually. Acceptance should verify chassis code, engine rating and emissions stage, transmission model, rear axle ratio, cargo box dimensions and plate thickness, tank volume or rated load capacity, tyre specification and cabin equipment against the order.

A complete 2026 catalogue covering HOWO dump trucks, water tankers, fuel tankers, mining trucks, tractor trucks, semi trailers, concrete mixers and garbage trucks is available here: QINGONG Group Products Catalog 2026.