This comprehensive service repair manual covers the Isuzu NHR, NKR, NPR, NQR, and NPS series trucks manufactured between 2004 and 2006. It provides detailed information and instructions for servicing and repairing these vehicles, including their various engine options: the 4H Series, 4J Series, and 4HK1-TC. The manual also covers crucial systems like the heating and air conditioning, frame and cab, steering, suspension, wheels and tires, propeller shaft and axle, brakes, ABS/ASR, HSA (Hill Start Aid), manual transmissions and clutches, engine control systems, and cab and chassis electrical systems. Additionally, it includes information on seat belts, SRS (Supplemental Restraint System), airbags, and PTO (Power Take Off) systems. This manual serves as an invaluable resource for mechanics, technicians, and vehicle owners who need to understand and perform maintenance or repairs on these Isuzu trucks.

The 2004-2006 Isuzu NHR, NKR, NPR, NQR, and NPS series trucks represent a diverse range of commercial vehicles designed for a variety of applications. These models were part of Isuzu's popular line of medium-duty trucks, known for their reliability, durability, and fuel efficiency. The NHR series, the smallest of the group, was ideal for urban deliveries and light-duty applications. The NKR offered a larger payload capacity, suitable for construction and utility work. The NPR, a popular choice for delivery and service trucks, offered a balance of size and performance. The NQR series provided even more payload capacity, making it well-suited for heavier construction and hauling jobs. Finally, the NPS, with its heavy-duty chassis and powerful engine, was designed for demanding applications like dump trucks and heavy-duty trailers.

These Isuzu trucks were powered by a variety of engines, including the 4HK1-TC, 4JG2-TC, and 4HE1-TC diesel engines, offering a range of power outputs to meet different needs. The trucks were available with a wide variety of transmissions, including manual, automatic, and automated manual options. The cabs offered a comfortable and ergonomic work environment for drivers, with features like adjustable seats, power windows and locks, and a comprehensive dashboard layout. These trucks were equipped with standard safety features like anti-lock brakes, airbags, and a robust frame construction to ensure the safety of both the driver and the cargo. The 2004-2006 Isuzu NHR, NKR, NPR, NQR, and NPS series trucks were popular choices for businesses requiring reliable and durable commercial vehicles, offering versatility and efficiency for a variety of applications.