ECM modules and related electronic parts supplier

ECM Modules,
Controllers & Related Parts

BUY ECM supplies new, remanufactured and tested engine control modules plus related electronic parts for heavy-duty trucks, construction machines, generators and industrial diesel engines. Programming, repair check and bench testing support are available when required.

New & Reman ECM Quality options by budget
Plug-and-Play Setup Programmed by VIN or ESN
Bench Tested Function checked before shipping
Worldwide Shipping Fast export support

Shop ECM by brand

Caterpillar ECM Cummins ECM Detroit Diesel ECM Volvo ECM Weichai ECM Yuchai ECM Sinotruk ECM Deutz ECM Perkins ECM Isuzu ECM Yanmar ECM Kubota ECM Komatsu ECM John Deere ECM

Technical support behind every ECM order

Programming, repair check and inspection support when needed

BUY ECM is a product supplier first. When an ECM order needs extra confirmation, we support repair checks, flash programming, cloning, bench testing and pre-shipment inspection.

In-stock examples

ECM modules and related diesel engine parts

Browse ECM modules, wire harnesses, diagnostic tools, injectors and injection pumps. Send the part number or label photo for compatibility confirmation before purchase.

Volvo 21900553 ECM product
Ready to Ship

Volvo 21900553 Engine ECM

Engine
Volvo D13
Need
Old label photo
Condition
Used Tested
Check compatibility
ECM wire harness connector product
Photo Confirm

ECM Wire Harness & Connector

Use case
No communication
Check
Connector / pins
Category
Harness
Send connector photo
CAT adapter diagnostic tool kit
Service Tool

Adapter Diagnostic Tool

Use
ECM diagnosis
Support
Programming / test
Category
Diagnostic Tool
Confirm adapter kit
C7 C9 engine injector and injection pump
Related Part

Injector & Injection Pump

Engine
C7 / C9
Use
Diesel fuel system
Check
Part number / engine
Confirm fuel part

Fitment confirmation

Confirm the right ECM before payment

Share the old module label, machine model, engine serial number and part number. We check the match before shipping and confirm whether programming or testing support is needed.

1Old ECM part number and cross-reference number
2Machine model, engine model, VIN or engine serial number
3Photos of label, connector face and pin condition
4Optional symptoms: no start, no communication, injector fault or water damage
Opened ECM circuit board for repair and testing ECM circuit board component repair detail Bench test software result screen ECM repair inspection board close-up

Testing & quality control

Pre-shipment testing, connector inspection and programming support

Technical service supports product supply. When required, we inspect module condition, connector pins, communication status and programming requirements before shipment.

  • Bench power and communication test before shipping
  • Connector, pin and casing inspection photos
  • Programming or cloning support when the ECM application requires it
  • DHL, FedEx and UPS dispatch information