Turbo Actuator Repair – NH950107 / K6T51271 Model: RHF55V | Compatible with Isuzu NQR 75L (4HK1-E2N Engine)

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Price Exclusive of GST


Our assessment fee is $150 + GST.
If you choose to proceed with the repair, this fee is applied towards the total repair cost. It is only charged separately if you decide not to proceed after the assessment.

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Turbo Actuator Repair – NH950107 / K6T51271
Model: RHF55V | Compatible with Isuzu NQR 75L (4HK1-E2N Engine)

This is a repair service for electronic turbo actuators with part numbers NH950107 and K6T51271, commonly found on the RHF55V turbocharger used in Isuzu NQR 75L trucks.

Compatible Actuator Variants:

  • VKA40016

  • VDA40016

  • VCA40016

  • VBA40016

  • VAA40016

Engine Compatibility:

  • Isuzu 4HK1-E2N

  • 5193ccm / 110kW / 150HP

  • Model Years: 2006 onward

Common Faults:

  • No movement or unresponsive actuator

  • Turbo boost control errors

  • DTCs related to turbo position sensor or actuator motor

  • Vehicle in limp mode due to boost control failure

We offer full bench testing and component-level repair of the actuator, restoring proper turbo control and helping avoid unnecessary turbocharger replacement.