ECM Electronic Control Module 4921776 for Engine ISB QSB6.7 6B5.9 6C8.3 QSB3.3 QSK19 QSK78 QSK60

Keywords: 4921776 ECM electronic control module, cumm-ins ISB QSB6.7 engine ECU, excavator engine control unit, construction machinery ECM controller, heavy‑duty machinery electronic control module, aftermarket replacement ECM assembly

Product Overview

ECM Electronic Control Module Part No.4921776 is the core brain unit for electronically controlled diesel engines, compatible with cumm-ins ISB, QSB6.7, 6B5.9, 6C8.3, QSB3.3, QSK19, QSK78, QSK60 engines widely fitted on excavators and heavy‑duty equipment. This electronic control module collects sensor signals and precisely manages fuel injection timing, fuel quantity, exhaust treatment and engine working status, to guarantee stable engine output power, fuel economy and emission performance. It solves typical electronic system faults such as no engine start, power shortage, fault code alarm, communication failure between diagnostic tool and engine caused by original ECM circuit damage, component burnout and program abnormality. Every ECM undergoes strict circuit detection and function testing before delivery.

Detailed Specifications

Key Features & Advantages

• Stable mainboard circuit design, strong anti‑interference capability, adapts to harsh high‑vibration working environment of construction machinery.
• Perfect hardware matching for cumm-ins multi‑series engines, supports diagnostic tool reading, fault code clearing and parameter calibration.
• Accurate real‑time control of fuel injection and engine operating parameters, restore normal engine power output.
• Effectively resolve failure to start, power drop, ECU communication failure and frequent fault‑code alarms.
• Reliable replacement for engine electronic control system repair and overhaul work.

Application Scope

Fit Equipment: Excavators and heavy‑duty construction machinery powered by cumm-ins ISB, QSB6.7, 6B5.9, 6C8.3, QSB3.3, QSK19, QSK78, QSK60 diesel engine. ‑ Widely used for machinery repair workshops, equipment refurbishment and engine electronic‑system overhaul projects.

Our Company Advantage

We are professional supplier of full‑range construction machinery spare parts, supplying engine parts, hydraulic parts, electrical parts, seal kits and complete overhaul kits. ‑ Large ready stock for various machinery spare parts ‑ Factory‑direct wholesale competitive price ‑ Mixed‑order & one‑stop spare‑parts procurement supported ‑ Professional part‑number matching technical support service

Packaging & Shipping

Neutral export carton with shock‑proof inner packing, prevent collision damage during long‑distance transportation ‑ Multiple shipping options: sea freight, air freight, international express for small trial orders ‑ Export documents such as Commercial Invoice, Packing List can be provided.

Contact Us

If you need more excavator spare parts or other construction machinery replacement components, please send your parts list to us. We will offer our best quotation for you quickly.