The HFC4GA3.1D engine, a classic power unit of JAC Refine's 4GA series, is a 2.0T turbocharged gasoline engine domestically optimized based on Hyundai's G4JS technology. Validated by years of market practice, it has become a popular power choice in the fields of household SUVs and commercial MPVs with its balanced performance and reliable quality. This newly assembled version strictly adheres to JAC's original factory manufacturing standards and assembly specifications, adopting precision assembly processes throughout the entire workflow. All components meet original specifications, and every fit from the cast iron cylinder block to the all-aluminum cylinder head undergoes strict verification to ensure the continuation of its proven durability and power stability.

It boasts prominent core technical highlights: Equipped with a DOHC (Double Overhead Camshaft) + 16-valve structure, paired with a DVVT (Dual Variable Valve Timing) system and direct injection technology, combined with a high-efficiency turbocharging system, it can dynamically adjust valve timing and fuel injection precision according to working conditions to achieve efficient combustion. With flexible power tuning, its maximum power ranges from 100-128kW (136-174Ps) and the peak torque reaches 193-260N·m. The maximum torque output speed is as low as 1500-2000rpm, featuring remarkable low-speed high-torque characteristics, easily handling start-up acceleration and heavy-load driving. The engine adopts a cast iron cylinder block combined with an all-aluminum cylinder head design, balancing structural rigidity and heat dissipation efficiency. Equipped with an optimized lubrication system and low-friction technology, it achieves excellent service life and outstanding combined-cycle fuel economy. It fully meets National IV/V and Euro IV/V emission standards, combining environmental protection and practicality.

With wide adaptability, this engine is perfectly compatible with various mainstream models including the first-generation JAC Refine S5 and Refine M5, covering SUVs and MPVs. It is suitable for various transmission types such as 6-speed dual-clutch and 5-speed automatic, providing stable and reliable power support for daily commuting, family travel or business reception.

All engines undergo professional hot run-in tests before leaving the factory: first running at 800-1000r/min for 1 hour without load to fully inspect the sealing and operating status of the oil-electrical circuit, turbocharging system and lubrication system; then conducting loaded run-in with 10%-15% rated load to optimize the adaptability of part friction surfaces and identify potential hazards. After run-in, key indicators such as cylinder pressure and piston run-in marks are verified to meet standards through disassembly inspection, ensuring the engine reaches the optimal working condition upon delivery and can be put into use without additional run-in.

We provide a one-year warranty for this newly assembled engine, covering assembly process defects and core component quality issues during the warranty period (excluding consumables and human-induced damage). With professional protection, it escorts daily commuting and commercial operations, allowing you to enjoy a stable and efficient power experience.