417-6020 488-4886 20R-3749 ECM ECU Controller for Caterpillar CAT 336F 966M D6T 140M
Brand: For Caterpillar (CAT)
Part Numbers: 417-6020, 488-4886, 20R-3749, 4176020, 4884886, 20R3749
$1,999.00
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Bench-Tested - Every unit powered up and function-tested before dispatch.
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6-Month Warranty - From delivery, against defects in materials and workmanship.
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30-Day Returns - Unused items in original packaging. RMA required.
Professional 417-6020 488-4886 20R-3749 ECM ECU for Caterpillar CAT 336F 966M D6T
Maximize the intelligent control and fuel efficiency of your modern Caterpillar fleet with the professionally remanufactured 417-6020 (488-4886 / 20R-3749) Engine Control Module (ECM). As a high-performance Electronic Engine Control Unit (ECU), this module acts as the primary processing brain for CAT’s Tier 4 Final and high-productivity machinery. Whether managing the advanced hybrid hydraulics of a 336F XE Excavator, the complex shift logic of a 966M XE Wheel Loader, or the precision grading of a 140M 3 Motor Grader, this ECM is engineered to restore OEM-standard performance.
High-Versatility Compatibility for Modern Job Sites
The 417-6020 controller is a mission-critical electronic module designed as a Direct Replacement for an extensive range of CAT platforms:
- F-Series Excavators: Fully compatible with 336F and 340F models, including Long Reach (LRE), Ultra High Demolition (UHD), and XE configurations.
- M & L Series Wheel Loaders: Optimized for 966L/M, 972L/M, and the heavy-duty 986K and 988GC, ensuring seamless engine-to-transmission communication.
- Precision Grading & Dozing: Specialized for M-Series 3 Motor Graders (12M, 140M, 160M) and D6T/D7E Tractors, supporting advanced grade control systems.
- Industrial & Paving: Fits 973K Track Loaders, PL72 Pipe Layers, and PM310/312/313 Cold Planers.
- Power Generation: Accurate fuel management for DE450GC through DE550GC Generator Sets.
Industrial-Grade Reliability & Rigorous Testing
At liuchuangparts.com, we understand that for high-tech M and F series machines, electronic failure means instant production stops. Our 4176020 / 4884886 units are restored to the highest standards:
• Exact Factory Specs: Tested to match original Caterpillar factory parameters for a 100% functional match with your machine’s digital architecture.
• Environmental Shielding: Premium aluminum casing protects circuitry from extreme job-site heat, high-frequency vibrations, and hazardous dust.
• Performance Verification: Undergoes functional load testing and thermal stress analysis to handle the complex requirements of modern ACERT engines.
Why Source From Liuchuang Parts?
| 12-Month Quality Warranty | Full 1-year coverage with professional repair or replacement services. |
| Customer-First Support | Fast response times and technical guidance for your modern machine electronics. |
| Global Shipping Solutions | Reliable logistics ensuring your high-value ECM arrives safely at your workshop or remote job site. |
⚠️ Important: Programming & Data Verification
- Mandatory Programming: This ECM must be programmed with the correct Flash File specific to your Engine Series Number (ESN) and machine configuration. It is not “plug-and-play.”
- Required Documentation: Please provide your ESN and VIN after purchase. Clear photos of the current ECM and engine data plate are required for precise calibration.
- Expert Installation: We highly recommend a certified technician handles the installation to prevent potential electrical damage.
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