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6x4 Sinotruk HOWO 336HP sewage suction truck in standard grey with rear tailgate fully open

Rear view of the 10-tire Sinotruk HOWO sewage tanker with hydraulic lift and air blowdown system

Side view of the 10-wheel Sinotruk HOWO sewer pump truck with ladder and catwalk on top

6×4 Sinotruk Howo 336HP sewage suction truck Cambodia

Name: 6×4 Sinotruk Howo 336HP sewage suction truck Cambodia
Brand: Sinotruk HOWO

The 6×4 Sinotruk HOWO 336HP sewage suction truck is designed for municipal sanitation departments and waste contractors that need to extract sludge, mud, and debris from deep sewer manholes, water wells, and sediment pits. Built on a robust HOWO 8x4 chassis with a 336 HP diesel engine, it operates in urban and rural environments where access roads are unpaved and infrastructure is aging. The truck uses a vacuum system to suction material up to 9 metres deep and 80 metres horizontally, then discharges it via hydraulic lift and air blowdown in under eight minutes. It is specified by public works teams in Southeast Asia and Africa that require reliable, long-term operation in high-moisture, high-corrosion conditions.

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Key Benefits

336 HP diesel engine with no overhaul required within 500,000 km, reducing downtime
Suction depth of up to 9 metres and horizontal reach of 80 metres for deep access
Fills in 10 minutes and discharges in 8 minutes using a Veyron single or double pump
Fully opening rear tailgate and top catwalk allow safe access and full tank inspection
Rubber strip, hydraulic lock, and manual lock ensure leak-proof operation
Tank material available in Q345 carbon steel or 304 stainless steel for corrosion resistance
15 years of spare parts and technical support available for long-term fleet use

Buyer Profile

Who It Is for

Municipal sanitation and public works departments in Southeast Asia and Africa
Waste and drainage contractors operating in rural or low-infrastructure areas
Public utilities managing water wells and underground storage tanks
Construction and quarry site managers needing to clear sediment pits
Government procurement agencies equipping local waste removal fleets
Private contractors bidding on public sanitation tenders with long-term support requirements

Operating Problems

Problems It Solves

Sewer systems with deep manholes and narrow access that standard trucks cannot reach
Slow suction and discharge times that delay service and increase labour costs
Leakage during transport due to poor sealing on tank doors and valves
Frequent breakdowns from poor engine durability and lack of spare parts
Lack of access to technical support and spare parts after the warranty period
Inadequate tank corrosion protection in high-moisture, high-salinity environments

Where It Works

Application Scenarios

Municipal sanitation departments in Cambodia and Laos with aging sewer systems and limited access
Rural water and drainage contractors operating on unpaved roads and remote sites
Industrial waste contractors handling sludge from construction pits and water treatment plants
Emergency response teams clearing blocked manholes after heavy rains or flooding
Contractors maintaining water wells and septic tanks in remote villages without sewer networks
Municipalities upgrading waste removal fleets with durable, low-maintenance trucks

Engineering

Technical Features

6×4 Sinotruk HOWO chassis with 336 HP diesel engine and 10 forward, 2 reverse gearbox
Suction speed fills a 15-18 m³ tank in 10 minutes from a depth of up to 9 metres
Blowdown completed in a single 8 minutes using hydraulic lift and air blowdown
Four-way change valve fitted to the pump for flexible operation and maintenance
Sight glasses at top and bottom of tank for real-time level monitoring
Ladder with catwalk on top of tank for safe access and inspection
Manual, pneumatic, and hydraulic operation modes for control in varied conditions
Hydraulic gauge, negative pressure meter, anti-overflow valve, and tail gravity valve for safe operation

Specifications

Technical Data


Chassis	6x4 Sinotruk HOWO, left hand drive
Engine	336 HP diesel, WD615.62/WD615.87/WD615.47
Gearbox	HOWO HW19710, 10 forward, 2 reverse
Wheelbase	4350 + 1350 mm
GVM	25000 kg
Kerb Weight	10800 kg
Tank Capacity	15-18 m³
Tank Material	Q345 carbon steel or 304 stainless steel
Tank Thickness	Body 6-8 mm, Head 8 mm, Partition 5 mm
Suction Depth	Up to 9 metres
Suction Distance	Up to 80 metres horizontal
Suction Speed	Fill in 10 minutes
Blowdown Speed	Complete in 8 minutes
Pump Type	Small Veyron single pump or large Veyron double pump
Operation Method	Manual + pneumatic + hydraulic
Tailgate Form	Fully opening, fully open tail
Blowdown Method	Hydraulic lift dumping + air blowdown
Suction Pipe Length	8 metres
Production Time	20 days
Lead Time	7 to 30 days after advance payment
Shipping Port	China main port

Build Materials

Materials

Q345 carbon steel tank with 6-8 mm body, 8 mm head, 5 mm partition
304 stainless steel available for tank material on request
Aluminium alloy ladder and catwalk for corrosion resistance
Rubber strip and hydraulic lock seals on tank doors and valves
Steel frame and chassis with Sinotruk engine and gearbox
Pneumatic and hydraulic components from standard industrial suppliers

How It Is Built

Manufacturing Process

Chassis is received from Sinotruk and wheelbase is confirmed against the tank drawing
Tank shell is cut, rolled, and welded with internal clapboards to control surge
Tank is pressure tested and leak tested before leaving the welding shop
Pump, four-way valve, and suction pipe are installed and aligned to the driveline
Ladder, catwalk, sight glasses, and tailgate are assembled onto the subframe
Body is shot blasted, primed, and finished in standard grey or custom colour
Full system test includes suction, blowdown, and leak check before shipment

Testing

Quality Control

Every truck is 100 percent tested before delivery
Photos and videos of the finished truck are sent to the buyer before balance payment
Pressure and leak tests conducted on the tank before final assembly
Pump and vacuum system tested under full load conditions on the factory apron
All seals and locks verified for proper operation and leak resistance
Complies with GB7965 performance requirements for special purpose vehicles

Build to Order

Customization Options

Tank capacity from 3,000 L to 30,000 L available to match site needs
Tank material can be changed from carbon steel to 304 stainless steel
Left or right hand drive chassis to match local traffic regulations
Tank colour and logo applied free of charge
Optional: liquid full alarm self-stop, water ring vacuum pump, anti-corrosion treatment
Optional: solid-liquid separation filter cartridge + hydraulic auger, Honda sprinkler pump + sprinkler

Comparison

How It Compares With the Alternatives

4×2 sewage truck with a 10 m³ tank	Lower cost and better turning radius but cannot handle deep suction or heavy loads on rough terrain
Used imported vacuum truck	Higher initial cost but better long-term reliability and 15 years of spare parts support
Generic Chinese vacuum truck	Lower price but lacks the Sinotruk engine durability and full technical support network

Operating Notes

Use Guide

Confirm the chassis drive configuration and hand of drive against local registration rules before order
Use only the designated suction pipe and avoid inserting foreign objects into the inlet
Do not exceed 9 metres of vertical suction depth to prevent pump damage
Engage the hydraulic lift and air blowdown system in sequence to avoid overpressure
Drain the tank and flush with water after each use in corrosive environments
Free operator training is available at the factory before shipment

Buyer Questions About This Truck

What is the lead time for this sewage suction truck?

Production time is 20 days. Delivery time varies from 7 to 30 days depending on shipping mode and chassis availability.

Can the tank be made of stainless steel?

Yes. The standard tank is Q345 carbon steel. 304 stainless steel is available on request. Specify water quality and storage duration for confirmation.

What are your payment terms?

T/T with 30 percent deposit and 70 percent before delivery. Photos and videos of the finished truck are sent before the balance payment.

Do you supply right hand drive?

Yes. The chassis is ordered in left or right hand drive to match local traffic regulations. Confirm at order stage as it cannot be changed later.

How is the truck shipped?

By Ro-ro or bulk ship from a China main port. Trade terms are EXW, FOB, CFR, or CIF.

What warranty and after sales support do you provide?

The whole vehicle is guaranteed for one year. Core parts on some products are guaranteed for two years. 15 years of spare parts and technical support are available.

Can the equipment list be changed?

Yes. Send your list of required accessories such as alarms, filters, or sprinklers and we will configure the truck accordingly.