Description
This oil cooler is designed for Cummins 4B engines and replaces OEM part number 3921557. It regulates engine oil temperature to maintain optimal performance and prevent overheating. Built from corrosion-resistant materials and engineered to OEM specifications, this oil cooler offers a precise fit, excellent heat dissipation, and easy installation for consistent engine protection in all conditions. Application: Aftermarket Cummins 4BT Cross Reference Numbers: 3957543 3918292 Key Features: OEM replacement for Cummins 3921557 Fits Cummins 4B engine series Ensures proper oil temperature regulation Corrosion-resistant and durable construction Quick, OEM-style installation Compatibility: Cummins 4B Engines OEM Replacement Part #: 3921557
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