High-quality oil cooler cores 3959031 are suitable for engine 6BT 6D102, and 3957543 is suitable for engine 4BT 4D102.

High-quality oil cooler cores 3959031 are suitable for engines 6BT 6D102, and 3957543 is suitable for engines 4BT 4D102.

High-quality oil cooler cores are primarily suitable for diesel engines, especially those with high power and high heat loads. Their core function is to stabilize the oil temperature within the ideal range of 80±5℃ through forced cooling, maintaining the viscosity stability and lubrication effect of the lubricating oil.

Main Applicable Engine Types

High-power diesel engines: Due to the large amount of frictional heat generated during diesel engine operation, the oil viscosity is prone to decrease due to high temperatures. High-quality cooler cores can effectively dissipate heat and prevent lubrication failure.

Heavy-duty engines

Diesel engines operating under high loads for extended periods, such as those in construction machinery and trucks, require water-cooled or air-cooled cooler cores to maintain oil performance.

Structural Types and Compatibility

Water-cooled: Heats the engine through circulating water in the engine cooling system. Suitable for diesel engines with high heat dissipation efficiency requirements, commonly found in commercial vehicles.

Air-cooled: Relies on fan airflow for heat dissipation; simple structure; suitable for diesel engines with special space layouts or auxiliary cooling scenarios.

Material Selection Recommendations

Copper Core: Strong heat dissipation performance and excellent corrosion resistance; the first choice for high-power diesel engines.

Stainless Steel Core: Even better corrosion resistance, but slightly weaker heat dissipation; suitable for corrosive environments or low-heat-load models.