OIL COOLER CORE C3957544 4110000331018

Part Name: Oil Cooler Core
General Model: C3957544, 3957544
Material: Multi-layer copper/aluminum alloy fins + steel pipe
Structure: 8-layer heat dissipation plate type
Function: Forces cooling of engine oil through coolant, controlling engine oil temperature
Installation Location: Below oil filter housing, on the side of the engine
II. Compatible Engines and Models
Engine: Cummins 6BT5.9, 6BTA5.9 (160~210 hp)
Applicable Models: Dongfeng 153, Tianjin, Dolica (6BT engine)
Construction Machinery: Komatsu PC200-6/7, Hyundai R220-5, Liugong/Longgong 30/50 loaders
Generator Sets, Marine Machinery
III. Price Reference (2026) (Year) Original Cummins: ¥280–380 Aftermarket
IV. Faults and Replacement Tips Common Faults: Internal Leak: Oil enters the water passages (coolant emulsification, foam on the dipstick) External Leak: Oil seepage from the housing or interface Blockage: Poor heat dissipation, excessively high oil temperature Replacement Points: The sealing gasket (part number: 3914537) must be replaced during replacement. Check the oil and water passages for blockages before installation. It is recommended to replace the oil filter at the same time.