Tuning The Isuzu NPR85 - same model as was tuned by Alt Tune

2018 Isuzu NPR85

3.0L – 4JJ1-TC – Transtron ECU

The Challenge

The 2018 Isuzu NPR85 is a versatile and reliable light-duty truck, known for its efficiency and dependability in various commercial applications. As a popular choice for urban deliveries, transportation, and small businesses, the NPR85 boasts impressive performance. However, for truck owners seeking to optimize their vehicle’s capabilities, power tuning offers an exciting opportunity.

In this post, we are looking into how tuning the Isuzu NPR85 can enhance its performance on the road. We are using a 2018 Isuzu NPR85 with a Transtron ECU we tuned for a customer as an example. The customer looking to improve productivity. Here at Alt Tune, we have the tools to help with that.

The Solution

We decided to give the NPR85 a power tune using Alientech KESS3 after checking it over and reading its ECU. By fine-tuning various aspects of the engine’s operation, we can unlock hidden potential and enhance the NPR85’s performance on the road. Power tuning the Isuzu NPR85 presents an exhilarating opportunity to elevate its already impressive performance and efficiency to new heights.

Commercial vehicles are supposed to be on the road and not in the workshop. We can help minimize downtime. By altering the emission system through the ECU can we take away one of the most reliability issues. By altering the tune on the NPR85 will be transformed into a more powerful truck that is ready to conquer any task as well as being more reliable.

Increased Power


Power Increase


Torque Increase

Further Benefits Of Tuning The Isuzu NPR85

Increased Power and Torque

Tuning the ECU of a light commercial diesel truck offers amplified power for better performance and optimized fuel consumption, leading to enhanced towing ability, quicker acceleration, cost savings, and reduced environmental impact.

Years of Development

We have been tuning the NPR85’s 3.0L 4JJ1-TC engine for years, and understand how they work as well as the limitation on factory hardware.


Easy and fast programming

Easy, fast and non-evasive via programming the factory-fitted diagnostic port.

So, if you’re looking to take your Isuzu truck to the next level, don’t hesitate to reach out to us! Our dedicated team is ready to unleash the full potential of your vehicle and make your driving dreams a reality!


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