Caterpillar 7N0107 Oil Cooler Core Assembly

The Caterpillar 7N0107 oil cooler core assembly is designed to regulate engine oil temperature in heavy-duty diesel applications. It serves as a direct replacement for the engine oil cooling circuit on Caterpillar 3406 and 3408 series engines, ensuring optimal viscosity and lubrication performance under severe operating conditions. This unit features a robust plate-fin construction manufactured to OEM specifications for thermal transfer efficiency and structural integrity. It supersedes legacy part numbers including 7N0677, 0R3512, 6N3815, and 0R5547. The assembly is validated for fitment on Caterpillar 776 track-type tractors, 777 off-highway trucks, and 824C wheel dozers. Each core undergoes pressure testing to guarantee leak-free operation and durability in mining and construction environments.