Construction Machinery Parts Hyundai R485-9 R485-9T Excavator complete Wiring Harness for R485-9 Wring Harness

Product Name: Frame Wiring Harness / Main Frame Harness
Part Number: 21QB-14405
OEM Number: 21QB-14405
Machine Model: Hyundai R485-9, R485-9T Excavator
Category: Electrical System Parts
Application: Main Frame Electrical Wiring System
Condition: OEM New / High-Quality Replacement

The 21QB-14405 Frame Wiring Harness is a critical electrical component designed for Hyundai R485-9 and R485-9T excavators. It serves as the primary connection between the engine system, hydraulic control system, sensors, controller, monitor, and chassis electrical components, ensuring stable communication and power transmission throughout the machine.

Manufactured with premium copper conductors, heavy-duty insulation, and waterproof OEM connectors, this harness provides excellent durability and reliability in demanding mining, quarry, construction, and heavy earthmoving environments.

• Manufactured according to original Hyundai specifications
• Direct replacement for damaged or aged harnesses
• Plug-and-play installation

• Pure copper wiring
• Stable electrical transmission
• Reduced voltage loss
• Improved machine performance

• Sealed connector system
• Resistant to moisture, mud, oil, and dust
• Suitable for harsh construction environments

• Abrasion-resistant loom protection
• Heat-resistant insulation
• Oil and chemical resistant outer sheath

• Supports communication between:
  • ECU Controller
  • Engine System
  • Hydraulic System
  • Monitor Display
  • Sensors & Solenoid Valves
  • Main Electrical Components

• R485-9
• R485-9T

• Engine Control System
• Hydraulic Control System
• Main Electrical Circuit
• Chassis Electrical System
• Frame Electrical Network

If your excavator experiences any of the following issues, the wiring harness may require replacement:

• Engine cannot start
• Intermittent electrical faults
• ECU communication errors
• Sensor signal failure
• Hydraulic system alarms
• Monitor display malfunction
• Unstable machine operation

Replacing a damaged harness can significantly improve machine reliability and reduce downtime.

Before shipment, every harness undergoes:

To ensure correct compatibility, please provide:

• Machine model
• Machine serial number
• Old harness photos
• Harness label photos
• OEM part number

Our technical team will verify the correct wiring harness before shipment.

• Excavator Wiring Harnesses
• ECU / ECM Controllers
• Monitor Displays
• Solenoid Valves
• Sensors
• Diagnostic Tools
• Engine Electrical Parts

JISION – One-Stop Solution for Construction Machinery Electrical Parts.