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Product Details
Product Overview
This Controller-ECU is a precision-engineered electronic control unit specifically designed for the Caterpillar 325CL excavator and the 3126 diesel engine platform. As a critical component of the engine management system, this ECU (Engine Control Unit) governs fuel injection timing, air-fuel ratio, and overall engine performance to ensure optimal power output, fuel efficiency, and emissions compliance.
Built to OEM specifications, this controller-ecu serves as a direct replacement for the original unit found in Caterpillar 325CL excavators and other heavy machinery utilizing the 3126 engine. The unit comes factory-tested and is commonly used for Caterpillar equipment operating in construction, mining, and material handling applications. Please verify your existing part number and engine model before purchasing to ensure correct fitment.
Key Features & Benefits
OEM-Spec Design: Manufactured to original equipment manufacturer dimensions and performance standards, ensuring a seamless plug-and-play installation without modifications.
Precision Engine Control: Advanced microprocessor technology provides accurate fuel delivery and timing control, maximizing engine power output while minimizing fuel consumption.
Durable Construction: Housed in a robust, vibration-resistant casing designed to withstand the harsh operating conditions of excavators, loaders, and bulldozers.
Rigorous Testing: Each unit undergoes outgoing video inspection and machinery test report verification to confirm functionality and reliability before shipment.
Wide Application Compatibility: Suitable for a range of heavy equipment including forklifts, excavators, trucks, loaders, bulldozers, and buses powered by the Caterpillar 3126 engine.
6-Month Warranty: Backed by a comprehensive 6-month warranty covering manufacturing defects, providing peace of mind for your investment.
Technical Specifications
Specification
Detail
Part Type
Controller-ECU (Engine Control Unit)
Engine Model
325CL 3126
Place of Origin
Guangdong, China
Weight
15 kg
Size
OEM Size
Engine Type
Diesel
Application
Forklift, Excavator, Truck, Loader, Bulldozer, Bus
Packing
Plastic bag, Box, Carton
Warranty
6 Months
Video Outgoing Inspection
Provided
Machinery Test Report
Provided
OEM Cross-Reference
This Controller-ECU is designed as a direct replacement for the original Caterpillar ECU found on 325CL excavators and 3126 engine applications. While a specific OEM part number is not listed in the provided data, the unit corresponds to the standard ECU configuration used on Caterpillar 325CL machinery with the 3126 diesel engine platform. For cross-reference purposes, please compare your existing unit’s OEM number (typically found on a label affixed to the ECU housing) against the specifications of this product. Common OEM series for this application include Caterpillar genuine ECU part numbers for the 3126 engine family.
Compatibility
This Controller-ECU is specifically designed for the following applications:
Engine Models: Caterpillar 3126 Diesel Engine, 325CL Excavator Engine System
Vehicle Applications (commonly used for):
Caterpillar 325CL Excavator
Caterpillar 3126-powered Forklifts
Caterpillar 3126-powered Trucks
Caterpillar 3126-powered Loaders
Caterpillar 3126-powered Bulldozers
Caterpillar 3126-powered Buses
Other heavy equipment utilizing the Caterpillar 3126 engine platform
Important: Compatibility is based on engine model and equipment series. Always verify your specific machine’s engine model and existing ECU part number before ordering.
Global Supply & Distribution
maintains a robust global supply chain capable of shipping this Controller-ECU to buyers worldwide. Our distribution network covers major industrial markets including:
North America: Fast delivery to ports and industrial centers in the USA, Canada, and Mexico.
Europe: Efficient shipping to EU countries, United Kingdom, and Eastern European markets.
Asia-Pacific: Rapid dispatch to Australia, New Zealand, Japan, South Korea, and Southeast Asian nations.
Middle East & Africa: Reliable service to UAE, Saudi Arabia, South Africa, and regional hubs.
South America: Coverage for Brazil, Argentina, Chile, and other key markets.
We offer flexible shipping options including air freight, sea freight, and express courier services. Our export team ensures all documentation complies with international trade regulations, providing hassle-free customs clearance for your orders.
Quality Assurance
Every Controller-ECU is manufactured under strict quality control standards in our Guangdong facility. Our quality assurance process includes:
Manufacturing Standards: Components are produced following ISO-compliant processes with rigorous incoming material inspection.
Testing Procedures: Each unit undergoes comprehensive functional testing, including video outgoing inspection and machinery test reports to verify performance parameters.
Certification: Products are tested to meet OEM specifications for the Caterpillar 3126 engine system.
Warranty: All units are covered by a 6-month warranty against manufacturing defects. Within the warranty period, we provide replacement or repair services for any verified defects.
FAQ
Q1: How do I confirm this ECU will fit my Caterpillar 325CL excavator? A: This ECU is specifically designed for the Caterpillar 325CL excavator equipped with the 3126 diesel engine. To confirm fitment, locate the model number on your machine’s engine identification plate (typically found on the valve cover or engine block) and verify it reads “3126.” Additionally, check the existing ECU’s part number and compare its physical connector configuration to the unit shown. If your machine uses a different engine variant or ECU revision, please contact our technical support team with your machine serial number for cross-verification.
Q2: Is this ECU pre-programmed, or does it require programming after installation? A: This Controller-ECU is supplied as a direct replacement unit. In most cases, it comes pre-configured with standard factory parameters for the 3126 engine in 325CL applications. However, depending on your specific machine’s configuration and any previous modifications, some Caterpillar ECUs may require reprogramming or calibration using Caterpillar diagnostic software (ET) to match your machine’s exact specifications. We recommend having a qualified diesel technician or Caterpillar dealer perform the installation and any necessary programming to ensure optimal performance.
Q3: What maintenance is required for the ECU, and what should I do if the unit fails? A: The ECU itself is a sealed electronic component requiring no routine maintenance. However, to ensure long-term reliability, keep the ECU connector clean and free from moisture, corrosion, and debris. Ensure the mounting location is secure and protected from excessive vibration and heat. If the unit fails within the 6-month warranty period, contact us immediately with your order number and a description of the issue. We will guide you through the diagnostic process and arrange for a replacement or repair as covered under warranty. For failures outside the warranty period, we offer competitive pricing on replacement units and technical support for troubleshooting.
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