

Designed for Isuzu, perfect match
Isuzu NPR/NQR series trucks enjoy a high reputation worldwide for their excellent performance and reliability. In order to further improve the performance of this series of models, we have specially introduced the 4HE1 crankshaft. The crankshaft is specially designed for Isuzu NPR/NQR series trucks to ensure a perfect match with the original car and give full play to the potential of the engine.
Learn more about Isuzu NPR/NQR series trucks
Isuzu NPR/NQR series trucks are the leader in the medium-sized commercial vehicle market and are widely used in a variety of scenarios such as urban distribution, long-distance freight and special operations. They are favored by the majority of users for their efficient power system, reliable mechanical structure and comfortable driving experience.
Technical features of 4HE1 crankshaft
The 4HE1 crankshaft uses a number of advanced technologies to ensure that it performs well under various working conditions.
High-quality materials, strong durability
The crankshaft is made of high-strength alloy steel, which has extremely high tensile strength and wear resistance, and can maintain stable performance during long-term operation.
Advanced surface treatment process
The surface of the crankshaft undergoes special heat treatment and coating process to enhance its corrosion resistance and lubrication performance and extend its service life.

Strict testing, excellent performance
Each 4HE1 crankshaft undergoes a series of rigorous tests, including dynamic balance tests and durability tests, to ensure its stability and reliability under a variety of harsh conditions.
Dynamic Balance Test
Through precise dynamic balance test, the vibration generated by the crankshaft during high-speed operation is eliminated, and the overall stability and comfort of the engine are improved.
Durability test
Durability test under simulated extreme conditions to verify the stability and durability of the crankshaft in long-term use.
Adapt to harsh conditions
The 4HE1 crankshaft can work normally in various environments such as high temperature, low temperature, humidity and salt spray, ensuring that the vehicle can perform well in different climates and regions.
Performance at high and low temperatures
Whether it is in hot summer or cold winter, the 4HE1 crankshaft can maintain stable performance and ensure the normal operation of the engine.
Stability in wet and salt spray environments
Advanced anti-corrosion technology and surface treatment process enable the crankshaft to maintain good performance and long service life in humid and salt spray environments.
Easy installation and easy maintenance
The design of the 4HE1 crankshaft fully considers the convenience of installation and maintenance, with detailed installation procedures and maintenance guidelines, so that the owner and mechanic can easily operate.
Detailed installation steps
We provide a set of detailed installation manuals, covering every step from removing old parts to installing new parts to ensure the smooth installation process.
Importance of Regular Maintenance
Regular inspection and maintenance of the crankshaft can find potential problems in time, extend the service life of the crankshaft, and ensure that the engine is always in the best condition.
Improve engine performance
The 4HE1 crankshaft can not only increase the power and torque of the engine, but also significantly improve fuel economy and reduce fuel consumption, thereby saving you more operating costs.
Improved fuel efficiency
By optimizing the design and material of the crankshaft, friction loss is reduced, fuel utilization is improved, and fuel consumption is reduced.
Extended engine life
High-quality materials and strict testing make the 4HE1 crankshaft have a longer service life, reduce the frequency of replacement, and extend the overall life of the engine.
Reduced repair costs
The high performance and high reliability of the crankshaft reduces downtime and maintenance costs due to failures, saving you a lot of maintenance costs.

The actual use experience of car owners
Many owners have already experienced the benefits of the 4HE1 crankshaft. They have said that after installing the new crankshaft, the vehicle has stronger power, lower fuel consumption, and significantly improved overall performance.
User evaluation and feedback
