Weichai ECU | Weichai Engine ECU Supplier South Africa

Weichai ECU for Sale – Genuine, OEM & Quality Replacement ECUs

TOSOG supplies Weichai ECU (Engine Control Unit) solutions for diesel engines used in mining, construction, earthmoving, generators, trucks, agricultural machinery, industrial equipment and other heavy-duty applications across South Africa.

A Weichai ECU, also referred to as a Weichai ECM (Engine Control Module) or engine controller, is responsible for monitoring and controlling critical engine functions. Depending on the engine configuration, the ECU can process information from sensors and control fuel injection, engine speed, torque management, starting, protection functions, emissions-related systems and other electronic engine functions.

TOSOG can assist with sourcing Weichai ECU replacement units, ECU modules, engine controllers, programmed ECUs and compatible replacement solutions based on the engine model, ECU part number, calibration requirements and application.

We support Weichai engine families including WP4, WP6, WP10, WP12, WP13, WP15, WD10 and WD615, subject to exact specification and availability. TOSOG’s existing Weichai parts range also covers electrical components, sensors, wiring harnesses, injectors, fuel-system components and other engine parts.

Weichai ECU South Africa

Searching for a Weichai ECU supplier in South Africa?

TOSOG provides sourcing and supply assistance for Weichai engine control modules used in:

Mining equipment
Construction machinery
Earthmoving equipment
Wheel loaders
Bulldozers
Excavators
Motor graders
Road rollers
Dump trucks
Agricultural machinery
Generator sets
Industrial engines
Transport equipment
Marine applications

We understand that an ECU failure can result in machine downtime. Our team therefore focuses on correct identification before supplying a replacement module.

The engine model alone is normally not sufficient to identify the correct ECU. ECU part number, engine serial number, engine configuration, machine application and, where applicable, software/calibration information should be checked before ordering.

Weichai ECU Models & Engine Series

TOSOG can assist with sourcing ECUs for various Weichai engine families.

Weichai WP4 ECU

The WP4 range is used in various industrial and heavy-duty applications.

We can assist with sourcing:

WP4 ECU
WP4 ECM
WP4 engine controller
WP4 ECU replacement
WP4 ECU programming solutions
WP4 engine sensors
WP4 wiring harnesses

Weichai WP6 ECU

The Weichai WP6 ECU is a commonly requested electronic engine-control component for equipment using WP6 engines.

Available sourcing options may include:

WP6 ECU
WP6 ECM
WP6 engine controller
WP6 ECU replacement
WP6 programmed ECU
WP6 ECU module
WP6 wiring harness
WP6 engine sensors
WP6 electronic components

Weichai’s published product information includes WP6 engine applications, while the exact ECU configuration depends on the engine specification and application.

Weichai WP10 ECU

TOSOG supplies and sources Weichai WP10 ECU solutions for heavy-duty applications.

Search terms supported include:

Weichai WP10 ECU
WP10 ECU for sale
WP10 ECM
WP10 engine ECU
WP10 ECU replacement
WP10 engine control module
WP10 ECU programming
WP10 ECU South Africa

WP10 engines are used across a range of industrial and power-generation applications. Weichai’s current product information includes multiple WP10 configurations.

Weichai WP12 ECU

We can source Weichai WP12 ECU and related electronic components.

Typical requirements include:

WP12 ECU
WP12 ECM
WP12 engine control module
WP12 ECU replacement
WP12 programmed ECU
WP12 ECU module
WP12 wiring harness
WP12 sensors
WP12 electronic components

TOSOG already supports sourcing for the WP12 engine platform and related spare parts.

Weichai WP13 ECU

TOSOG can assist with sourcing WP13 ECU and engine control components, subject to the exact engine configuration.

Requirements may include:

WP13 ECU
WP13 ECM
WP13 engine controller
WP13 ECU replacement
WP13 ECU programming
WP13 sensors
WP13 wiring harness

Weichai WP15 ECU

We can also assist with sourcing Weichai WP15 ECU solutions and associated electronic components.

For WP15 ECU enquiries, provide the ECU identification label and complete engine data plate wherever possible.

Weichai WD615 ECU

TOSOG can source electronic control components for Weichai WD615 engines, including ECU/ECM solutions where applicable.

Search terms include:

WD615 ECU
WD615 ECM
WD615 engine ECU
WD615 ECU replacement
WD615 engine controller
Weichai WD615 ECU South Africa

WD615 is also among the Weichai engine series supported by TOSOG’s wider spare-parts sourcing operation.

Weichai ECU Parts & Electronic Components

A complete Weichai electronic-control solution can involve much more than the ECU itself.

TOSOG can assist with sourcing:

ECU & Control Modules

Engine Control Unit
Engine Control Module
ECU replacement
ECU assemblies
Programmed ECU
Blank ECU
Replacement controller
Electronic engine controller

Sensors

Crankshaft position sensors
Camshaft position sensors
Coolant temperature sensors
Oil pressure sensors
Boost pressure sensors
Intake air temperature sensors
Fuel pressure sensors
Rail pressure sensors
Engine speed sensors

Electrical Components

ECU wiring harnesses
ECU connectors
Relays
Solenoids
Actuators
Starter motors
Alternators
Electronic throttle components
Engine protection components

Fuel & Engine Management

Injectors
Fuel pumps
Common-rail components
Fuel pressure regulators
Electronic actuators
Turbocharger control components

TOSOG’s wider Weichai parts range includes ECU modules, electronic controllers, sensors, wiring harnesses, solenoids and actuators.

Weichai ECU Replacement

A failed ECU does not always mean that the ECU itself is defective.

Before replacing a Weichai engine ECU, our technical team recommends checking:

Battery voltage
ECU power supply
ECU grounds
Main relays
ECU fuses
Wiring harness
CAN communication
Sensor circuits
Injector wiring
Engine speed signals
Communication with the diagnostic tool
Water or corrosion damage
ECU connectors and terminals

Replacing an ECU without identifying the original failure can result in damage to the replacement module.

Weichai ECU Programming & Configuration

Some Weichai ECU replacements may require configuration, programming, calibration or parameterisation before the engine can operate correctly.

Depending on the ECU and engine application, the required information may include:

Engine model
Engine serial number
ECU part number
ECU hardware number
Software number
Calibration information
Machine model
Machine serial number
Original ECU information
Diagnostic fault codes

Important: ECU programming requirements vary by engine and controller. TOSOG confirms the required configuration based on the specific ECU before supply.

How to Order a Weichai ECU

For accurate identification, send TOSOG as much of the following information as possible:

📸 1. ECU Photos

Send clear photographs of:

ECU front
ECU rear
ECU identification label
Connectors
Part-number label
Any barcode or serial number

🔧 2. Engine Data Plate

Send a clear photograph of the complete Weichai engine data plate.

🏗️ 3. Machine Information

Provide:

Machine manufacturer
Machine model
Machine serial number
Application

🔢 4. ECU Part Number

The ECU part number is extremely important.

Do not order solely based on the engine model where multiple ECU configurations are available.

Weichai ECU Fault Symptoms

A defective ECU or related electrical system can potentially cause symptoms such as:

Engine does not start
Intermittent starting
Engine starts and stops
Loss of engine power
Incorrect engine speed
Sensor-related fault codes
Injector-related fault codes
Communication faults
CAN communication errors
Engine protection warnings
Abnormal fuel control
Diagnostic tool unable to communicate with ECU
Intermittent machine shutdown

These symptoms can also originate from wiring, sensors, power supplies, grounds, fuel systems or other engine components. Proper diagnostics should therefore be performed before replacing the ECU.

Weichai ECU Supplier South Africa

TOSOG supplies and sources Weichai electronic engine components for customers throughout South Africa.

We support customers in:

Gauteng
Johannesburg
Pretoria
East Rand
Mpumalanga
Limpopo
KwaZulu-Natal
North West
Northern Cape
Free State
Western Cape
Eastern Cape

Our broader Weichai spare-parts operation supports mining, construction, agriculture, transport, marine, generator and industrial applications.

Weichai ECU for Mining & Construction Equipment

Weichai-powered machinery is used in demanding operating environments where engine reliability and uptime are critical.

TOSOG can assist with ECU and engine electronic components for:

Wheel loaders
Dozers
Excavators
Motor graders
Dump trucks
Rollers
Drilling equipment
Generator sets
Mining equipment
Industrial machinery

We also supply other Weichai engine components, including injectors, turbochargers, water pumps, oil pumps, filters, pistons, liners, sensors and electrical components.

Genuine, OEM & Aftermarket Weichai ECU Options

Depending on availability and customer requirements, TOSOG can investigate:

Genuine Weichai ECU

Original equipment solution where available.

OEM / Equivalent ECU

A compatible ECU manufactured to the required specification.

Quality Replacement ECU

A replacement solution for customers seeking a cost-effective alternative.

ECU Repair Assessment

Where appropriate, customers can provide details of the failed module for assessment before replacement.

All ECU options should be verified against the engine and original ECU identification before ordering.

Tips When Buying a Weichai ECU

🔧 Tip 1 – Send the ECU Part Number

The ECU part number is one of the most important pieces of information for accurate identification.

🔧 Tip 2 – Send the Engine Data Plate

Always provide the complete engine data plate rather than only typing the engine model.

🔧 Tip 3 – Photograph the ECU Label

A clear photograph can reveal hardware, software, serial and manufacturer information that may not be visible from the machine model.

🔧 Tip 4 – Check the Wiring

Before replacing the ECU, inspect the wiring harness, connectors, power supply and grounds.

🔧 Tip 5 – Check CAN Communication

Communication faults can sometimes be caused by damaged wiring or another module rather than the ECU.

🔧 Tip 6 – Don’t Assume ECUs Are Plug-and-Play

Some replacement ECUs may require programming, configuration or calibration.

🔧 Tip 7 – Keep the Original ECU

If possible, keep the original ECU until the replacement has been correctly identified and confirmed.

🔧 Tip 8 – Provide Fault Codes

Diagnostic trouble codes can help identify whether the problem is electronic, electrical, fuel-related or mechanical.

Frequently Asked Questions – Weichai ECU

1. Where can I buy a Weichai ECU in South Africa?

TOSOG can assist with sourcing Weichai ECU and ECM modules in South Africa, subject to the required engine and ECU specification.

2. Do you supply Weichai ECU for WP6 engines?

Yes. TOSOG can assist with sourcing WP6 ECU, ECM and related electronic components.

3. Do you supply WP10 ECU?

Yes. We can assist with sourcing Weichai WP10 ECU and engine control components.

4. Do you supply WP12 ECU?

Yes. TOSOG can source WP12 ECU and ECM solutions, subject to exact specification.

5. Do you supply WD615 ECU?

We can assist with sourcing electronic control components for WD615 engines, subject to the specific engine configuration.

6. Can you supply a programmed Weichai ECU?

Where programming or configuration is required, we can investigate the appropriate solution based on the ECU part number, engine serial number and application.

7. What information do you need for a Weichai ECU quotation?

Ideally provide:

ECU part number
Engine model
Engine serial number
Machine model
Machine serial number
ECU photographs
Engine data-plate photograph
Quantity required

8. Can you supply Weichai ECU wiring harnesses?

Yes. TOSOG can assist with sourcing Weichai engine wiring harnesses and related electrical components.

9. Can you supply Weichai sensors?

Yes. We can source various Weichai engine sensors, subject to engine model and part number.

10. Do you supply genuine and aftermarket Weichai ECUs?

TOSOG can investigate genuine, OEM-equivalent and quality aftermarket options depending on availability and customer requirements.

11. Do you deliver Weichai ECU parts across South Africa?

Yes. TOSOG supports customers across South Africa through its machinery-spares supply and delivery network.

12. Can you identify my Weichai ECU from a photograph?

Yes. Send clear photographs of the ECU label, connectors and engine data plate. Our team can use this information to assist with identification.

Request a Weichai ECU Quote

Looking for a Weichai ECU for sale in South Africa?

Send TOSOG:

ECU Part Number:
Engine Model:
Engine Serial Number:
Machine Make:
Machine Model:
Machine Serial Number:
Quantity:
Location:
Photos: ECU + Engine Data Plate

Our team will check the specification and sourcing options before preparing a quotation.

TOSOG – Weichai ECU & Engine Parts Supplier South Africa

For Weichai engine parts, TOSOG also supplies engine internal components, fuel-system components, turbochargers, cooling-system components, filters and electrical components.

Weichai ECU for Sale South Africa | Weichai ECM | TOSOG