YN20M00107S002C Air conditioner wiring harness

Product Overview

The YN20M00107S002C Air Conditioner Wiring Harness is a critical electrical component for the Kobelco SK200-8 and SK210LC-8 excavators. This A/C harness connects the air conditioning compressor, condenser fan, evaporator blower, and climate control sensors to the machine’s electrical system, enabling reliable and efficient cab climate control.

The Kobelco SK200-8 and SK210LC-8 are 20-21 ton class excavators widely used in construction, excavation, and utility work . These machines feature factory-installed air conditioning systems that provide operator comfort in hot working conditions. The A/C wiring harness transmits power and control signals to all air conditioning components, ensuring proper compressor engagement, fan operation, and temperature regulation.

The A/C harness is subjected to constant vibration, heat exposure from the engine compartment, and potential moisture ingress. Over time, the harness can suffer from chafed insulation, corroded connectors, or broken wires, leading to intermittent or complete loss of air conditioning function. Common symptoms include the A/C compressor not engaging, blower fan failure, or erratic temperature control . Replacing a damaged harness with this YN20M00107S002C assembly restores proper electrical connectivity to the air conditioning system.

Key Features

• OEM Specification Compliance: Manufactured to meet the exact electrical and dimensional specifications required by Kobelco for the SK200-8 and SK210LC-8 excavators.

• Weather-Sealed Connectors: Features OEM-grade connectors that provide reliable sealing against moisture and dust ingress, maintaining electrical integrity in wet and dirty job site conditions.

• Heat and Abrasion Resistant: Wires are insulated with high-temperature, abrasion-resistant materials designed to withstand the harsh engine compartment environment.

• Direct Replacement: Matches OEM mounting dimensions and connector configurations for straightforward installation with no modifications required.

• Corrosion-Resistant Terminals: Equipped with plated terminals that resist corrosion and maintain consistent electrical conductivity.

• Essential for A/C Function: Proper electrical connectivity is essential for the air conditioning system to function reliably, keeping the operator comfortable in hot conditions.

• OEM Cross-Reference: Equivalent to OEM part number YN20M00107S002 .

Compatibility

This air conditioner wiring harness is a direct replacement for the following Kobelco excavator models:

Excavator Models

• Kobelco SK200-8

• Kobelco SK210LC-8

Additional Compatible Models (Verify Fitment)

• Kobelco 140SR

• Kobelco 70SR

• Kobelco 80CS

• Kobelco ED150, ED195-8

• Kobelco SK135SRLC-2

• Kobelco SK170-8

• Kobelco SK210D-8, SK210DLC-8

• Kobelco SK215SRLC

• Kobelco SK235SR-1E, SK235SR-2

• Kobelco SK260

• Kobelco SK295-8

• Kobelco SK350-8, SK350-9

• Kobelco SK485-8

• Kobelco SK850

Application Notes

• SK200-8: Serial Number YN11-45001~ (1/06-12/09) 

• SK210LC-8: Serial Number YQ11-06001~ (1/07-12/12) 

Part Number: YN20M00107S002C
OEM Reference: YN20M00107S002 

Also Known As: A/C Harness, Air Conditioner Wiring Harness, Climate Control Harness, AC Compressor Harness, Cab HVAC Harness

Please verify your machine’s serial number and compare with your original part before purchasing.

Air Conditioning System Overview

The Kobelko SK200-8 and SK210LC-8 are equipped with factory-installed air conditioning systems that provide operator comfort in hot working conditions. The service manuals for these machines include detailed sections covering the air conditioning system, wiring diagrams, and troubleshooting procedures .

Key A/C Components Connected by the Harness

Signs Your A/C Harness Needs Replacement

The A/C wiring harness can fail due to heat exposure, vibration, chafing, or corrosion. Replace your YN20M00107S002C harness if you observe:

1. A/C Compressor Not Engaging: The air conditioning system fails to produce cold air because the compressor clutch is not receiving power.

2. Intermittent A/C Operation: The air conditioning works sometimes but fails at other times, indicating an intermittent electrical connection.

3. Blower Fan Failure: The cab blower fan does not operate or operates intermittently.

4. Visible Harness Damage: Cracked, melted, frayed, or chafed wire insulation visible along the harness routing path.

5. Corroded Connectors: Visible corrosion at A/C system connector locations.

6. Blown Fuses: The A/C system fuse blows repeatedly, indicating a short in the harness.

7. Previous Repairs: The harness shows evidence of multiple previous repairs, splices, or taped sections, indicating degraded reliability.

8. After Compressor Replacement: When replacing the A/C compressor, inspect the harness for damage and replace if necessary.

9. No Power to A/C Components: Diagnostic testing shows no power reaching the compressor or blower despite functioning switches and relays.

Benefits

Why choose our YN20M00107S002C Air Conditioner Wiring Harness for your Kobelco excavator?

1. Restores Air Conditioning Function: A new harness ensures the A/C compressor, fan, and controls receive proper power and signals, restoring cab comfort.

2. Eliminates Intermittent A/C Issues: Replaces a chafed or corroded harness that may cause random compressor disengagement or fan failure.

3. Improves Operator Comfort: Reliable air conditioning keeps the operator comfortable and productive in hot working conditions.

4. Prevents Costly Misdiagnosis: A failing harness is often mistaken for a failed compressor, switch, or control unit. Replacement is a cost-effective solution.

5. Essential for Summer Operation: In hot climates, a functioning air conditioning system is essential for operator well-being and productivity.

6. Direct OEM Fit: Engineered to match the original routing and connections for straightforward installation.

7. Protects Other A/C Components: Prevents intermittent power issues that could damage the compressor clutch or other components.

8. OEM-Quality Assurance: Manufactured to meet or exceed original equipment standards for durability and performance.

Installation Tips

• Professional Installation Recommended: A/C harness replacement requires access to the compressor, condenser, and cab areas. Professional installation by qualified technicians is strongly recommended.

• Disconnect Battery: Always disconnect the battery negative terminal before working on electrical components.

• Document Connector Positions: Before removing the old harness, mark or tag each connector with its component location.

• Route the New Harness: Follow the factory routing path exactly as shown in the service manual wiring diagrams , keeping the harness clear of hot exhaust components and moving parts.

• Secure Properly: Use new cable ties at all original attachment points. Avoid overtightening ties that could pinch wires.

• Verify Connector Sealing: Ensure all connector seals are properly positioned to protect against moisture and dust ingress.

• Test Before Reassembly: Before fully securing all panels, reconnect the battery and test all A/C functions to confirm proper operation.

• Check Refrigerant Level: After harness replacement, verify the A/C system refrigerant level is correct for proper operation.

Service Manual Resources

For complete installation and troubleshooting information, the following resources are available for the SK200-8 and SK210LC-8:

Why Choose Our YN20M00107S002C A/C Wiring Harness?

We understand that the Kobelco SK200-8 and SK210LC-8 excavators are often operated in hot climates where reliable air conditioning is essential for operator comfort and productivity. The A/C wiring harness is a critical component that enables the climate control system to function properly.

A failing A/C harness can cause intermittent cooling, compressor disengagement, or complete system failure, leading to operator discomfort and reduced productivity. Our YN20M00107S002C Air Conditioner Wiring Harness is manufactured to meet OEM specifications using high-temperature, abrasion-resistant materials and precision connectors. Whether you are troubleshooting A/C issues, replacing a damaged harness, or restoring a machine after repair, this direct-fit harness provides the reliable electrical connectivity your air conditioning system requires.

Technical Specifications

Order your YN20M00107S002C Air Conditioner Wiring Harness today and restore reliable cab climate control to your Kobelco SK200-8 or SK210LC-8 excavator. In stock and ready for immediate worldwide shipping. Bulk pricing available for fleet maintenance.