6x4 vs 8x4 Used Dump Truck: How to Choose the Right Configuration
Pick a 6x4 when the work is lighter, the site is tight, and you want the unit that is easiest to resell and keep in parts. Pick an 8x4 when the payload and box size decide the job. Neither is 'better' — they are different tools.
Short answer
Pick a 6x4 when the work is lighter, the site is tight, and you want the unit that is easiest to resell and keep in parts — construction haulage, quarry runs and road work fit here. Pick an 8x4 when the payload and box size decide the job: in-pit ore and overburden, and heavy aggregate where the body needs to be 20 m³ or more. The extra axle buys payload and stability, but costs more to buy, run and manoeuvre.
Neither is 'better'. They are different tools. The rest of this page explains how to tell which one your operation actually needs, using the two HOWO configurations we reference most.
What the numbers mean
The 8x4 is not simply 'a bigger 6x4'. Adding an axle changes how the truck carries weight, where it can go, and what it costs to keep moving.
| 6x4 | 8x4 | |
|---|---|---|
| Axles | 3 | 4 |
| Driven wheels | 4 of 6 | 4 of 8 (the two rear axles are driven) |
| Typical gross vehicle weight | lower | higher |
| Typical tipper body volume | smaller | larger |
| Kerb (tare) weight | lower | higher |
| Turning circle | tighter | wider |
| Per-axle load spread | less | more |
The five factors that decide
Payload and body volume. More axles mean a higher gross vehicle weight and, in practice, a larger tipper body. On the two HOWO references we publish: the 6x4 model is built around a 16–20 m³ body at a 25,000 kg GVW; the 8x4 is built around a 20–25 m³ body at a 31,000 kg GVW. (Source: VERIFIED — /models/howo-371-6x4-dump/, /models/howo-8x4-dump/.) If your material is light and bulky, or your cycle is short, the 6x4 body is usually enough. If you are moving dense rock in a pit, the 8x4's volume and weight rating matter.
Off-road ability and stability. On soft, broken or graded ground, the 8x4's additional (typically front steering) axle and longer wheelbase give noticeably better traction and a more stable load. For mine haul roads, drawpits and overburden shifts, that stability is why the 8x4 exists. The 6x4 is perfectly capable on formed roads and compacted yards, but it is the smaller, nimbler tool.
Manoeuvrability and site access. The 6x4 turns tighter and is easier to place in a confined yard, a narrow access road or a built-up site. The 8x4's longer wheelbase is a real disadvantage where space is tight. If the truck spends its life on a single site with room to move, this matters less; if it joins public roads and tight urban accesses, it matters more.
Operating cost. The 8x4 carries more tyres (12 + 1 spare versus 10 + 1), more axles, hubs and tyres to maintain, and a heavier tare that costs fuel on every empty run. These are structural facts of the layout, not figures we can put a number on for your operation. (STABLE-GENERAL — truck mechanics; no site-specific figure stated to avoid fabrication.) Budget the 8x4 as the more expensive unit to own and run.
Market liquidity and resale. A configuration that is easy to resell protects you if the job ends. On the West African market we see most, the 6x4 HOWO tipper is the single highest-demand unit for construction and quarry work, and the deepest in spare parts. (Source: VERIFIED — stated on the 6x4 model page as Nigeria/Ghana demand note; treated as published site content, not an independent market survey.) The 8x4 is the right tool for pit work but a more specialised resale.
How the two HOWO models map to jobs
The closest real unit on our yard to either reference is TANAN-HOWO-001, a 2020 HOWO 6x4 dump truck we have photographed and listed. Note: TANAN-HOWO-001 is a specific 2020 unit rated at 336 hp on 11.00R20 tyres, with its transmission to be confirmed per the vehicle record — these are that unit's own figures, not the 371 hp model-reference specs listed above.
- HOWO 371 6x4 Dump Truck — engine WD615.47, 371 hp, Euro 2/3, HW19710 transmission, HC16 rear axles. Used for construction and aggregate haulage, sand and stone winning, open-pit mining cycles. Highest-demand single model in Nigeria for construction and quarry work; a core unit for Ghana's road programme and gold/bauxite/manganese haulage. (VERIFIED — /models/howo-371-6x4-dump/.)
- HOWO 8x4 Dump Truck — chassis ZZ3317, GVW 31,000 kg, 20–25 m³ body. Used for in-pit ore and overburden haulage and heavy aggregate. Preferred configuration for Ghana gold, bauxite and manganese pit cycles where the box needs to be 20–25 m³. (VERIFIED — /models/howo-8x4-dump/.)
Note on road legality: the 8x4's higher gross weight does not exempt it from destination road limits. Before recommending an 8x4 for on-road work, check the per-axle and gross limits under the destination country's road regulations — we state this on the model page and repeat it here deliberately. (UNVERIFIED for any specific country — verify with a licensed clearing agent.)
What to check on a used unit before you choose
We photograph all of this on every unit.
- Frame rails first. Cracks, welds or a bent frame mean the truck is scrap, and several African markets prohibit import on this basis. This is the check that decides whether a unit is worth exporting at all. (VERIFIED — /inspection/.)
- Nameplate year. The year of manufacture decides whether a truck may enter some markets at all. Read the plate, then read the 10th character of the VIN stamped into the chassis — the two should corroborate. The VIN model-year character supports the nameplate but does not replace it, and can differ from the build date by a few months. (VERIFIED — /inspection/.)
- Odometer vs cab wear. If the reading cannot be corroborated by the condition of the cab, treat it as unverified. (VERIFIED — /inspection/.)
Common mistakes
- Over-specifying. Buying an 8x4 for light quarry runs wastes payload capacity you cannot use and pays for tyres and fuel you do not need.
- Ignoring road-legal axle loads. A bigger truck is not automatically legal on the public road you intend to use. Confirm the limit first.
- Choosing on price alone. The 6x4's resale depth usually outweighs a small purchase saving on a more specialised unit.
Decision checklist
- What is the material, and is it light/bulky or dense/heavy?
- Is the work on a formed road/yard (6x4) or broken pit ground (8x4)?
- How tight is the site access?
- What gross and per-axle weight is legal on the destination road? (verify)
- Which configuration resells in your market?
Next steps
Compare the specs, see what is on the yard now, and tell us your configuration and destination port — we will send photographs and a quote, or say honestly if we do not have the unit.
HOWO 371 6x4 Dump TruckHOWO 8x4 Dump TruckInventoryInspection standardContact
Frequently asked
Is a 6x4 or 8x4 dump truck better?
Neither is universally better. The 6x4 is lighter, more manoeuvrable and easier to resell; the 8x4 carries more payload and is more stable off-road. Choose by operation, not by a ranking.
When should I choose an 8x4 over a 6x4?
When the job needs the higher gross weight and a 20 m³+ body — in-pit ore, overburden and heavy aggregate — and the site has room to move a longer wheelbase.
Is the 8x4 legal on public roads?
It depends on the destination country's gross and per-axle weight limits. The extra axle helps spread weight, but the total must still comply. Verify with a clearing agent before relying on it.
Which HOWO configuration is easiest to resell in West Africa?
On the market we reference most (Nigeria and Ghana), the 6x4 HOWO tipper is the highest-demand unit and the deepest in parts. The 8x4 is more specialised.
What should I check on a used unit besides the configuration?
Frame condition first (cracks or welds can make a unit unsellable and barred from import), the nameplate year against the VIN's 10th character, and whether the odometer reading matches cab wear. See our inspection standard.
Sources
- 6x4 / 8x4 notation convention: total wheel-positions times driven wheel-positions — standard heavy-truck running-gear terminology
- HOWO 371 6x4 / 8x4 model specifications: VERIFIED from /models/howo-371-6x4-dump/ and /models/howo-8x4-dump/ (GVW, body volume, drivetrain, market notes)
- Per-axle and gross weight road limits: UNVERIFIED for any specific country — verify with a licensed clearing agent before relying on road-legal use