Heavy-Duty Construction:
Core: Typically constructed from corrosion-resistant copper/brass alloys, known for their excellent thermal conductivity, repairability, and durability—a common standard for this era of heavy machinery. Some later variants might use aluminum.
Tanks: Feature heavy-gauge steel or robust molded plastic end tanks designed to withstand constant vibration and internal pressure.
Fins: Corrugated fins are mechanically bonded to the flat tubes. This design creates a large surface area for heat transfer and provides significant structural strength to the entire core.
Pressurized System:
The cooling system is sealed with a pressure cap (usually a 7-15 psi rating). This pressurization raises the boiling point of the coolant, allowing it to absorb more engine heat without turning to vapor, dramatically increasing the cooling system's efficiency and capacity.
This 139-8823 radiator is used for 345B excavator.
Related part number:
099-0001
151-6565
128-9066
151-6566
7Y-1976
1R-8601
096-4035
