ECM 488-4878 357-7442 417-6014 Control Module ECM For Caterpillar 336E 966K C9.3
Caterpillar Engine Control Module (ECM) used across CAT heavy equipment, marine, generator, and industrial applications. Bench-tested and ready to program.
Condition: Remanufactured (Reman) – Bench-tested and ready to program.
Part Numbers & Cross References
- Primary Part Number: 488-4878, 4884878, 357-7442, 3577442, 417-6014, 4176014, 372-2911, 3722911, 20R-8186, 20R8186
Common Applications
- CAT 336E (C9.3)
- CAT 966K (C9.3)
- Always match the ECM label part number. If unsure, send a label photo or engine serial number for confirmation.
Warranty & Shipping
- 365-Day Replacement Warranty – Full coverage against defects for one year.
- 30-Day Money-Back Guarantee – Return for any reason within 30 days.
- Free Worldwide Shipping – No hidden fees, shipped via DHL, FedEx, or UPS.
Always confirm fitment using your part number label and machine or engine serial number before ordering. Programming by a qualified technician is required after ECM installation.
Pairs well with
Free Worldwide Shipping (No Hidden Fees)
30 Day Money Back Guarantee
365 Days Replacement Warranty
In Stock – Ships within 5-8 business days
VIN / ESN Verification Before Shipping
ECM 488-4878 357-7442 417-6014 Control Module ECM For Caterpillar 336E 966K C9.3
Detailed Product Description.
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FAQs
How do I confirm this ECM or ECU is compatible?
Match your old ECM part number, engine model, machine model, engine serial number, connector type, and ECM label before ordering. If you are unsure, send us clear photos of your old ECM or ECU label and connectors.
Does this ECM or ECU require programming?
Many diesel ECMs, ECUs, and engine control modules require programming, calibration, or parameter setup after installation. We strongly recommend installation and programming by a qualified diesel technician.
What information should I provide before ordering an ECM?
Please provide the old ECM part number, engine model, machine model, engine serial number, VIN if applicable, ECM label photo, connector photos, and any fault codes or technician notes if available.
Can I install an ECM myself?
Professional installation is recommended. Incorrect installation, wrong programming, wiring faults, wrong voltage, poor grounding, or incompatible application can damage the ECM and may affect warranty coverage.
Can a wrong ECM damage my engine or machine?
Using an incorrect ECM, ECU, or electronic control module can cause fault codes, performance issues, damage, or failure. Always verify part number, connector type, engine model, and application before installation.