The characteristics of the JX4JB1 engine include strong low torque, robust durability, 

and compliance with emission regulations. 

This engine an inline-four structure, featuring a high compression ratio and substantial torque, 

making it suitable for use under various working conditions. Moreover, the JX4JB1 has undergone 

years of market validation, demonstrating excellent performance and earning high user trust. 

Applicable Vehicle Models Currently: 

Jiangxi Isuzu Rui Mai: This pickup truck is equipped with the JX4JB1 engine. The new Rui passed 

the National VI B emission regulations in 2024, continuing to use this engine.

JAC T6 Champion Edition: The JAC T6 Edition also adopts the JX4JB1 engine, meeting the market's 

demand for high performance and low fuel consumption. 

Zhangxing 1986 Edition: The Zhangxing 1986 Heavy Edition is also powered by the JX4JB1 engine, 

earning market recognition for its reliability and durability

Main parameters：

Number of cylinders: 4 Fuel type: Diesel 

Cylinder configuration: Inline 

Displacement: 2.771L

Emission standards: Euro III / China III 

Maximum power output: 57kW 

Maximum horsepower: 78 HP (Jiangxi Is version) or 76 HP (Jiangling version) 

Maximum torque: 174 N.m (Jiangxi Isuzu version) or 72 N.m (Jiangling version) 

Torque peak RPM: 2000 rpm 

Engine type: Inline four-cylinder water-cooled 

Compression ratio: 18.2:1 

Bore x stroke: 93x102mm 

Firing order: 1-34-2