Cummins QSB6.7 Electronic Control Module ECU 4921776 | Diesel Engine ECM Controller

Part Name: Electronic Control Module (ECU / ECM)
Part No.: 4921776
Engine Model: Cummins QSB6.7 / ISB / ISC / ISL
Application: Diesel Engine Electronic Control System
Type: Engine ECU Controller
Condition: New / Remanufactured Optional
Quality: OEM / Original Quality
Packaging: Neutral Export Package
Warranty: 6–12 Months

product details

The Cummins Electronic Control Module ECU 4921776 is designed for Cummins QSB6.7 diesel engine electronic management systems and is widely used in trucks, construction machinery, industrial equipment, and generator applications.
As the core control unit of the engine electronic system, the ECU receives signals from various engine sensors and processes operating data in real time to manage fuel injection, engine timing, air-fuel ratio, idle speed, and other important engine functions.
Manufactured according to OEM specifications, the ECU provides reliable communication performance, stable signal processing capability, and dependable operation under demanding diesel engine working conditions.
The 4921776 ECU is commonly applied in Cummins QSB6.7, ISB, ISC, and ISL engine systems used in heavy-duty transportation and industrial equipment applications.

Applications

● Cummins QSB6.7 diesel engines
● Cummins ISB / ISC / ISL engine systems
● Heavy-duty trucks
● Buses and commercial vehicles
● Construction machinery
● Generator sets
● Engine overhaul and maintenance projects

Product Advantages

● Intelligent Engine Management

The ECU continuously receives and processes signals from multiple engine sensors, helping manage fuel injection, ignition timing, and other operating parameters for stable engine performance.

● Reliable Data Processing Capability

Built with advanced electronic components and integrated control technology, the module provides stable communication and fast response during various engine operating conditions.

● Supports Efficient Engine Operation

By optimizing engine operating parameters, the ECU helps improve fuel combustion efficiency, engine response, and overall power system management.

● Durable Electronic Structure

Manufactured according to OEM standards with reliable circuit protection and durable housing design, suitable for heavy-duty diesel engine working environments.

● OEM Standard

Manufactured to meet original equipment specifications for direct replacement.

Technical Specifications

Item	Specification
Item Name	Electronic Control Module (ECU / ECM)
Part Number	4921776
Application	Cummins Diesel Engine
Engine Model	QSB6.7 / ISB / ISC / ISL series applications
Type	Engine Electronic Control Module
Material	Aluminum Housing & Electronic Components
Installation Position	Engine Electronic Control System
Function	Engine Data Processing & Electronic Control
Weight	Approx. 1.8–2.0 kg
Condition	New / Remanufactured Optional
Quality	OEM Quality Replacement
Packaging	Neutral Packing / Export Carton
Warranty	6–12 Months
Place of Origin	China

Function

The Electronic Control Module (ECU) is the central controller of the diesel engine electronic management system.
It collects operating data from various engine sensors and uses programmed control logic to manage important engine functions such as fuel injection, air intake control, engine speed regulation, and emission-related operations.
During engine operation, the ECU helps maintain stable engine performance, improve fuel efficiency, support fault diagnosis functions, and ensure proper communication between different engine electronic components.
In heavy-duty diesel engine applications, a reliable ECU plays an essential role in maintaining efficient engine management and stable vehicle or equipment operation.

Packaging & Delivery

● Standard export carton or customized packaging
● Delivery time: 3–10 days
● Shipping: Sea / Air / Express
● Payment: T/T, L/C, Western Union

FAQ

Q1: What is your terms of packing?
A: Generally, we pack you goods use factory packing box or neutral boxes.

Q2: What is your terms of payment?
A: By TT. We'll show you the photos of the products and packages before you pay the balance.

Q3: How about your delivery time?
A: Generally, it will take 3 to 10 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.

Q4: How do you make a price offer and how long is its validity?
A: We usually quote within 24 hours by email after we get your inquiry . If you are very urgent to get the price,please call us or tell us in your email so that we will regard your inquiry priority. The price valid with 30 days.

Q5: What is your sample policy?
A: We can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.

Q6: Do you accept third party inspection?
A: Yes, we do.

Q7: Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.

Q8: How do you make our business long-term and good relationship?
A: 1. We keep good quality and competitive price to ensure our customers benefit ;
2. We respect every customer as our friend and we sincerely do business and make friends with them.

Q9: How to guarantee your after-sales service?
A: 1. Strict inspection during production;
2. Strictly check the products before shipment to ensure our packaging in good condition;
3. Track and receive feedback from customer regularly.