331-7539 10R-8112 11R-0326 ECM ECU Engine Controller for Caterpillar CAT 320D 312D C4.4 C6.6
Brand: For Caterpillar (CAT)
Part Numbers: 331-7539, 10R-8112, 11R-0326, 3317539, 10R8112, 11R0326
Applications: for Caterpillar C4.4 & C6.6 Industrial Engines, 312D, 315D, 320D, 321D, 323D Series
$950.00
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Product Highlights
Overview
| Brand: | For Caterpillar (CAT) |
|---|---|
| OEM P/N: | 331-7539, 10R-8112, 11R-0326 |
| Applications: | 312D, 315D, 320D, 321D, 323D |
Product Details
Remanufactured 331-7539 10R-8112 11R-0326 ECM ECU for CAT 320D C6.6
Ensure the relentless productivity of your Caterpillar machinery with the professionally remanufactured 331-7539 (10R-8112 / 11R-0326) Engine Control Module (ECM). As a mission-critical Electronic Engine Control Unit (ECU), this module serves as the primary processing brain for CAT’s high-efficiency C4.4 and C6.6 engine series. Whether managing the hydraulic demands of a 320D Excavator or the precision of a 120M Motor Grader, this ECM ensures maximum fuel efficiency and diagnostic accuracy.
Broad Compatibility for CAT Construction & Paving
The 331-7539 controller is one of Caterpillar’s most versatile medium-duty modules, designed as a Direct Replacement for:
- Excavation Excellence: Specifically calibrated for the 312D, 315D, 319D, 320D, 321D, and 323D excavator series.
- Road Building & Compaction: Optimized for Vibratory Compactors (CS-54, CS-64, CS-74) and Asphalt Pavers (AP-1000E, AP-655D).
- Material Handling & Loading: Essential for 924H/938H Wheel Loaders and M313D/M316D Wheeled Excavators.
- Industrial Power: Reliable management for C4.4 and C6.6 Generator Sets and industrial power units.
Industrial-Grade Reliability & Rigorous Testing
At liuchuangparts.com, we understand that equipment downtime translates directly into financial loss. Our 3317539 / 10R8112 units are restored to meet or exceed OEM standards:
• Direct Replacement Fit: Remanufactured to match original factory parameters for a 100% plug-and-play fit with existing harnesses.
• Environmental Resilience: High-strength aluminum housing shields circuitry from intense vibrations, extreme heat, and moisture.
• Performance Verification: Undergoes functional load testing and thermal stress analysis to handle the demands of C4.4 and C6.6 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 to get your machines back on the job quickly. |
| Global Shipping Solutions | Reliable logistics ensuring high-value electronics arrive safely at your workshop or site. |
⚠️ Important: Custom Programming & Data Verification
- Mandatory Programming: This ECM must be programmed with the correct Flash File specific to your Engine Series Number (ESN). It is not “plug-and-play.”
- Required Post-Purchase Data: Please provide your ESN and VIN after purchase. Clear photos of the current ECM and engine data plate are required.
- Expert Installation: We highly recommend a certified technician handles the installation to prevent potential electrical damage.

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