366-8821 20R-2323 ECU ECM Engine Controller for Caterpillar CAT 320D2 336D 345D
Brand: For Caterpillar (CAT)
Part Number: 366-8821, 20R-2323
Applications: 320D2, 320D, 336D, 345D, 349D, 312D2
$1,999.00
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Product Highlights
Overview
| Brand: | For Caterpillar (CAT) |
|---|---|
| OEM P/N: | 366-8821, 20R-2323 |
| Applications: | 320D2, 320D, 336D, 345D, 349D, 312D2 |
Product Details
High-Performance 366-8821 20R-2323 Engine Control Module (ECM) for CAT D2 Series
Ensure the relentless power of your Caterpillar equipment with the 366-8821 (20R-2323) ECM Controller. This expertly remanufactured Electronic Engine Control Unit (ECU) is the operational core for Caterpillar’s modern D and D2 series, managing critical functions from fuel injection synchronization to advanced hydraulic diagnostics. Specifically designed for heavy-duty earthmoving, this module ensures your machine meets its original efficiency and emissions standards.
Comprehensive Compatibility for CAT D & D2 Series
The 366-8821 controller is one of Caterpillar’s most versatile modules, supporting an extensive range of equipment across multiple weight classes:
- Medium Excavators: Direct replacement for 312D2 GC, 320D2, 320D L, 323D L, 324D, and 329D L.
- Large & Mining Excavators: Fully optimized for heavy hitters like the 336D2 L, 345D L, 349D2, 374D L, and 390D L.
- Specialized Machinery: Compatible with M325D MH Material Handlers, M330D Wheeled Excavators, and 307D/308D Mini Excavators.
- Power Units: Essential for 3512 Generator Sets and various Mobile Hydraulic Power Units.
Remanufactured to Exacting OEM Specifications
At liuchuangparts.com, we prioritize durability because every hour of downtime is a loss. Our 3668821 / 20R2323 units are rebuilt and tested to exceed expectations:
• Direct Replacement Fit: Engineered to integrate seamlessly with existing CAT wiring harnesses and sensors.
• Rigorous Quality Control: Every module undergoes stress testing, thermal cycling, and logic verification.
• Industrial Protection: Encased in high-grade aluminum for superior heat dissipation and vibration resistance.
Why Choose Liuchuang Parts?
| 12-Month Warranty | Full year of coverage with rapid repair or replacement services. |
| Expert Support | Dedicated after-sales team providing technical support and fast response times. |
| Global Logistics | Reliable shipping solutions to ensure your parts arrive quickly at any job site worldwide. |
⚠️ Important: 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 Verification: After purchase, please provide your ESN and VIN, along with clear photos of the current ECM part and engine data plate.
- Technical Installation: We strongly recommend an experienced technician handles the installation to prevent electrical damage to the module.
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