478-7932 20R-8181 ECM ECU Controller for Caterpillar CAT 336D2 140K D6T 966H
Brand: For Caterpillar (CAT)
Part Numbers: 478-7932, 20R-8181, 11R-0332, 4787932, 20R8181
Core Machinery: Specialized for 336D2 Series Excavators and D6R/D6T/D7R Track-Type Tractors.
$1,499.00
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Product Highlights
Overview
| Brand: | For Caterpillar (CAT) |
|---|---|
| OEM P/N: | 478-7932, 20R-8181, 11R-0332 |
| Application: | 336D2, D6R, D6T, D7R, 120K, 140K, 140M |
Product Details
Expertly Remanufactured 478-7932 20R-8181 ECM ECU for Caterpillar CAT 336D2 D6T 140K
Restore the precise power and operational intelligence of your Caterpillar fleet with the professionally remanufactured 478-7932 (20R-8181 / 11R-0332) Engine Control Module (ECM). As one of CAT’s most versatile and critical Electronic Engine Control Units (ECU), this module serves as the primary processing brain for a vast array of Tier 3 and Tier 4 machinery. Whether managing the high-precision digging of a 336D2 L Excavator, coordinating the massive torque of a D6T Dozer, or ensuring the perfect blade control of a 140K Motor Grader, this ECM is engineered to deliver factory-standard diagnostic accuracy and peak horsepower.
Targeted Compatibility Across Major CAT Platforms
The 478-7932 controller is a high-spec electronic unit designed as a Direct Replacement for several high-demand CAT platforms:
- Earthmoving & Infrastructure: Specifically calibrated for D6R, D6T, and D7R Dozers, plus the entire K and M Series Motor Grader family (120K through 160M).
- Excavation & Loading: Essential for the 336D2 and 345D series excavators, and high-capacity 950H through 980H Wheel Loaders.
- Transport & Paving: Reliable management for 725/730/740 Articulated Trucks, PM-102 Cold Planers, and AP-1055D Asphalt Pavers.
- Industrial & Power Generation: Accurate fuel management for C9, C11, and C13 Industrial Engines and D250GC-D400GC Generator Sets.
Industrial-Grade Reliability & Rigorous Testing
At liuchuangparts.com, we understand that when a machine like the 336D2 or 140K stops, production stops. Our 4787932 / 20R8181 units are restored to meet or exceed original OEM standards:
• Exact Factory Specs: Tested to match original Caterpillar factory parameters for a 100% plug-and-play functional match with your harness.
• Environmental Resilience: High-strength aluminum housing shields internal circuitry from extreme engine heat, intense vibrations, and hazardous dust.
• Performance Verification: Undergoes functional load testing and thermal stress analysis to handle the complex electronic demands of ACERT engines.
Why Trust Liuchuang Parts?
| 12-Month Quality Warranty | Full 1-year coverage. If any issue occurs, we offer professional repair or replacement services. |
| Customer-First Support | Fast response times and expert technical guidance to keep your fleet operational. |
| Global Shipping Solutions | Reliable logistics ensuring your high-value ECM arrives safely at your workshop or remote job site. |
⚠️ Important: Custom Programming & Data Verification
- Mandatory Programming: To function correctly, this ECM must be programmed with the correct Flash File specific to your Engine Series Number (ESN). 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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