21K8-32100 MCU ECU, Excavator Main Controller, HX300L HX480L controller, Hyundai excavator ECU, excavator electrical control unit

🔹Product Overview

MCU ECU Main Controller Part No.21K8-32100 is the central control unit for Hyundai HX300L and HX480L excavators. It receives signals from sensors, controls hydraulic pump output, engine speed, working modes and monitors machine fault codes. It is the core electronic component for excavator electrical system repair and replacement.

🔹Detailed Specifications

🔹Key Features & Advantages

✅ Pre-programmed controller, match original wiring harness, plug and play.

✅ Stable signal processing, accurate control of engine and hydraulic system.

✅ Anti-vibration & dustproof housing, suitable for harsh construction site environment.

✅ Full function tested before shipment, support fault diagnosis and data reading.

✅ Strict dimension and connector matching, direct replacement for old unit.

🔹Application Scope

Fit Equipment: Hyundai HX300L, HX480L excavators. Widely used for machinery repair shops, excavator electrical troubleshooting and heavy equipment overhaul projects.

🔹Our Company Advantage

We are professional supplier of full‑range construction machinery spare parts, supplying engine parts, hydraulic parts, electrical parts, seal kits and complete overhaul kits.

• Large ready stock for various excavator controllers & electrical spare parts
• Factory‑direct wholesale competitive price
• Mixed‑order & one‑stop spare‑parts procurement supported
• Professional part‑number matching technical support service

🔹Packaging & Shipping

• Shock-proof inner packing + export neutral carton, prevent collision damage during long‑distance transportation
• Multiple shipping options: sea freight, air freight, international express for small trial orders
• Export documents such as Commercial Invoice, Packing List can be provided.

🔹Contact Us

If you need more excavator spare parts or other construction machinery replacement components, please send your parts list to us. We will offer our best quotation for you quickly.