
Technical Specifications
Hardware Version: CM876
Operating Voltage: DC24V (standard 24V power supply for diesel heavy trucks)
Interface Configuration: 2 large main connectors (purple sockets) + 1 small auxiliary connector, a total of 3 plugs, cannot be mixed with other series ECU such as CM870/CM2150
Shell: Cast aluminum metal casing, waterproof, shockproof, suitable for harsh vibrations, high and low temperature environments in the engine compartment
Net Weight: Approximately 3.0kg
Communication Bus: J1939 CAN bus, supports fault code reading, calibration, and program writing
Functions: Control fuel injection timing, fuel injection volume, boost control, idle speed, fault diagnosis, speed limit protection, store engine operation logs and fault history
Matching engines:
1. ISM11 (Xi'an Cummins): Heavy-duty trucks, dump trucks, 340 - 440 horsepower
2. QSM11 (for construction machinery): Excavators, loaders, generator sets, marine equipment, industrial QSM11 complete units
Two large purple sockets: main power supply, sensor input, injector drive output
Small black socket: J1939 communication, key switch, after-treatment / vehicle interaction signals
After replacement, the following operations need to be performed using the Cummins INSITE software: write VIN, install calibration program, parameter configuration. It cannot be directly plug-and-play.


Engine Control Module ECM 4963807, Hardware Platform CM876, 24V, For Cummins ISM11 QSM11 diesel engine, For heavy‑duty truck & construction machinery, J1939 CAN communication. Note: Unit without program, calibration software required by INSITE.
FAQ
Q: Why choose us?
A:
1. Comprehensive range of products: We offer a wide selection of parts for heavy trucks, excavators, and pump trucks, with precise OE part numbers and quick order availability.
2.Quality tiers to choose from: We offer three products: original factory parts, premium accessories, and cost-effective replacements, suitable for various engineering heavy-duty and daily maintenance scenarios.
3. Quick delivery of stock items: Main components are always in stock, and samples and replenishment orders can be quickly dispatched, reducing the waiting time for customers.
4. Professional compatibility guidance: Our technical support staff provides one-on-one assistance for model, bridge type, and engine model verification to avoid incorrect installation of parts.
5. Mature export logistics support: We can provide customs declaration documents, packing lists, and support for container consolidation or full container export, adapting to the requirements of multiple countries for customs clearance.
6. Stable packaging for ocean shipping: Customized packaging for rust prevention, shock resistance, and moisture protection ensures higher integrity of parts during ocean transportation.
Hot Tags: engine control unit computer board cm876 4963807, China engine control unit computer board cm876 4963807 manufacturers, suppliers, factory, 81 25225 6464, Fast 12 speed Manual Transmission Gearbox 12JSDX220T B, Fast Transmission Reduction Gear 12JSDX240T 1707106, Fast Transmission Welding Shaft 12JSD160T 1707047, PTO Power Takeoff QH70C G646 , Synchronizer Assembly 12JS160T 1707140
