5347703H | Genuine Cummins® Turbo VGT Actuator Harness Adapter

1. Electrical Compatibility

• Bridges the connection between the existing wiring harness and a new or different VGT actuator.

• Ensures proper signal transmission for the actuator’s movement and control.

2. Plug-and-Play Installation

• Allows installation without cutting, splicing, or modifying factory wires.

• Saves time and prevents wiring mistakes.

3. Supports Turbo Control

• Ensures the actuator receives accurate commands from the engine control module (ECM).

• Maintains proper turbo vane adjustment for optimal boost and efficiency.

4. Protects Wiring

• Sealed connectors protect against heat, vibration, and contaminants.

• Prevents premature failure of wires or actuator due to poor connections.

5. Cost-Effective Solution

• Avoids the need to replace the entire turbo wiring harness or turbocharger.

• Useful for upgrades or retrofits, especially when using newer actuator models on older engines.

1. Check Engine Light or Turbo Fault Codes

• ECM may throw P0089, P2563, P2562, P2561 or other turbo actuator-related codes

• Faults may indicate signal loss, short, or open circuit

2. Poor Engine Performance

• Reduced power or sluggish acceleration

• Turbo not reaching full boost

• Hesitation during acceleration

3. Erratic Boost Pressure

• Turbo boost fluctuates unpredictably

• Turbo may stay in low-geometry or fail to adjust vanes properly

4. Intermittent Operation

• Engine runs fine sometimes, but turbo underperforms at other times

• Indicates loose, corroded, or damaged connections

5. Electrical Symptoms

• Burnt smell or melted connector

• Exposed wires or corrosion at the adapter ends

• Frayed or pinched wiring

6. Turbo Actuator Malfunction

• Actuator does not move or responds slowly

• Turbo produces excessive smoke (often black) due to incorrect boost

7. Physical Damage

• Cracked or broken connector housing

• Bent or pushed-out pins inside the adapter

• Signs of overheating from poor contact