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

Login to view price

Price Exclusive of GST

Our minimum assessment fee is $150 + GST (Excluding Headlights). This just covers the time to check the unit over. If you proceed with the repair, we’ll apply this to the total cost. Our full terms of trade can be found here. Has repair work been attempted by your customer? Link here !

Heavy Diesel or Industrial Repair you need? Link here for a solution!

International Customers:
When sending a unit from overseas, please declare it as “Repair and Return” with a low customs value (around $100 USD) to avoid unnecessary import fees. - All Repair Prices are quoted in NZD

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.