Top 100 Heavy Equipment ECU / ECM Part Numbers
Heavy Equipment ECU / ECM Part Numbers – Caterpillar, Komatsu, Volvo & Excavator Engine Control Modules
Modern construction and mining equipment rely heavily on Electronic Control Units (ECU) and Engine Control Modules (ECM) to manage engine performance, fuel injection, emissions systems, and hydraulic operations. Without a functioning ECU, most heavy machines such as excavators, loaders, and dump trucks cannot operate correctly.
At TOSOG, we supply new, used, and refurbished ECU / ECM modules for leading heavy equipment brands including Caterpillar, Komatsu, Volvo, Hitachi, and Hyundai. These electronic control modules are commonly used in excavators like the CAT 320D, Komatsu PC200-8, and Volvo EC210, which are widely operated across construction, mining, and earthmoving industries in South Africa.
Heavy equipment ECUs control critical systems such as:
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Fuel injection timing
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Engine power management
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Turbocharger control
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Hydraulic system communication
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Machine diagnostics and fault codes
If your machine displays engine warning lights, loss of power, starting issues, or communication faults, the ECU or ECM may require replacement, programming, or repair.
We stock a wide range of popular ECU part numbers, including modules for Caterpillar C7, C9, and C15 engines as well as Komatsu and Volvo excavator controllers. Whether you are searching for a CAT 320D ECU, Komatsu PC200-8 ECU, or Volvo EC210 ECM, our team can assist with sourcing compatible modules quickly.
Our ECU supply services support:
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Construction contractors
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Mining companies
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Equipment repair workshops
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Heavy equipment traders
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Fleet maintenance teams
We supply ECU modules throughout South Africa and across Africa, with reliable sourcing from international OEM and aftermarket suppliers.
Below you will find a comprehensive list of popular ECU / ECM part numbers used in excavators and heavy equipment.
Caterpillar ECU / ECM
| Part Number | Description |
|---|---|
| 20R-6185 | Engine ECM |
| 10R-5647 | Engine ECM |
| 331-7540 | Engine ECU |
| 374-2640 | Engine ECM |
| 366-8821 | Engine ECM |
| 372-2905 | Engine ECM |
| 460-0132 | Engine ECM |
| 478-7932 | Engine ECM |
| 401-9211 | Engine ECM |
| 392-8195 | Engine ECM |
| 336-3545 | Engine ECM |
| 387-9427 | Engine ECM |
| 398-6614 | Engine ECM |
| 304-5687 | Engine ECM |
| 371-1480 | Engine ECM |
| 336-9658 | Engine ECM |
| 396-2500 | Engine ECM |
| 349-8353 | Engine ECM |
| 351-8490 | Engine ECM |
| 379-8576 | Engine ECM |
| 418-3423 | Machine ECM |
| 417-2278 | Machine ECM |
| 416-1934 | Machine ECM |
| 415-6889 | Machine ECM |
| 414-7720 | Machine ECM |
| 413-5432 | Machine ECM |
| 419-3344 | Machine ECM |
| 420-0037 | Machine ECM |
| 421-7822 | Machine ECM |
| 422-9981 | Machine ECM |
Komatsu ECU / ECM
| Part Number | Description |
|---|---|
| 7834-20-3000 | Engine ECU |
| 7834-21-5000 | Engine ECU |
| 7834-21-6000 | Engine ECU |
| 7834-24-2000 | Engine ECU |
| 7834-30-2000 | Engine ECU |
| 7834-40-2000 | Engine ECU |
| 600-461-1100 | Engine ECM |
| 600-463-1670 | Engine ECM |
| 600-463-1601 | Engine ECM |
| 600-465-1100 | Engine ECM |
| 600-467-1100 | Engine ECM |
| 600-467-1200 | Engine ECM |
| 600-467-1400 | Engine ECM |
| 600-467-1500 | Engine ECM |
| 600-467-1600 | Engine ECM |
Volvo Construction Equipment ECU
Hitachi / Isuzu ECU
Doosan / Hyundai ECU
Other Common Heavy Equipment ECU Numbers
Excavator ECU Part Numbers (CAT / Komatsu / Volvo)
CAT Excavators
Komatsu Excavators
| Machine | ECU |
|---|---|
| PC200-7 | 7834-20-3000 |
| PC200-8 | 7834-21-5000 |
| PC220-8 | 7834-21-6000 |
| PC300-8 | 7834-24-2000 |
| PC360-8 | 7834-30-2000 |
Volvo Excavators
| Machine | ECU |
|---|---|
| EC210 | VOE 20977019 |
| EC240 | VOE 20582958 |
| EC360 | VOE 21467265 |
| EC480 | VOE 21636091 |