286-3686 2863686 ECM ECU Engine Controller for Caterpillar CAT D6N D6K 963D
Brand: For Caterpillar (CAT)
Part Number: 286-3686, 2863686
Applications: D6N, D6K, D6K XL, D6K LGP
$1,299.00
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Free Shipping via FedEx, DHL, UPS, or USPS, Yanwen (3-10 Business Days)
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1 Year Warranty, Enjoy a full year of warranty, ensuring long-lasting reliability and peace of mind.
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Product Highlights
Overview
| Brand: | For Caterpillar (CAT) |
|---|---|
| OEM P/N: | 286-3686, 2863686 |
| Applications: | D6N, D6K, D6K XL, D6K LGP |
Product Details
Expertly Remanufactured 286-3686 2863686 ECM ECU Engine Controller for CAT D6K D6N 963D
Restore the peak operational reliability of your Caterpillar machinery with the high-performance 286-3686 (2863686) Engine Control Module (ECM). As a mission-critical Electronic Engine Control Unit (ECU), this module serves as the primary processing brain for CAT’s medium-duty earthmoving fleet. It manages sophisticated fuel injection synchronization, hydraulic diagnostics, and engine protection protocols to ensure maximum efficiency.
Broad Compatibility for CAT Earthmoving & Pipelaying
The 286-3686 controller is a versatile power management unit specifically calibrated for several of Caterpillar’s most reliable workhorses. It serves as a Direct Replacement for:
- Track-Type Tractors (Dozers): Optimized for the D6K series (XL, LGP) and the legendary D6N tractor.
- Track Loaders: Fully compatible with 953D and 963D track loaders, ensuring smooth power distribution under heavy loads.
- Specialized Machinery: Engineered to support the PL61 Pipelayer for high-precision infrastructure projects.
Industrial-Grade Reliability & Rigorous Testing
At liuchuangparts.com, we understand that every hour of downtime equals lost revenue. Our 2863686 units are rebuilt to exceed original OEM standards:
• Direct Replacement Fit: Manufactured to match original factory specifications for a seamless fit with existing wiring harnesses.
• Environmentally Resilient: Heat-dissipating housing protects circuits from heavy vibration, dust, and construction site moisture.
• Strict Quality Verification: Every unit undergoes functional load testing and thermal cycling to handle peak performance demands.
Why Source From Liuchuang Parts?
| 12-Month Warranty | Full 1-year repair or replacement service included for peace of mind. |
| Customer-First Support | Fast technical response and after-sales guidance to get your machine back to work. |
| Global Shipping | Reliable logistics solutions ensuring your electronic parts arrive safely at any job 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.
- Technical Installation: We highly recommend a certified technician handles the installation to prevent potential electrical damage.

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