1112820270 Original Excavator Parts Oil Radiator Core Cooler for ISUZU Engine 6BG1 

The Isuzu original engine oil radiator core/cooler (universal part number: 1112820270, also commonly labeled as 1-11282018-0 or 11282027-0) is a key cooling component designed specifically for excavators equipped with Isuzu engines. This original spare part is mainly suitable for various brands of excavators equipped with Isuzu 6BG1, 4BG1T, 4HK1X and other series engines. The specific applicable models include but are not limited to: Hitachi ZX120 (equipped with 4BG1T engine), Hitachi ZX210W-3 (equipped with 4HK1X engine), and other brand models that may use the same series of engines, such as Sumitomo SH240-5LR (equipped with 4HK1 engine).
 

The oil radiator core is the core heat exchange component of the engine lubrication system. Its core function is to efficiently exchange heat between the coolant (water) and the engine oil, taking away a large amount of heat absorbed by the oil during operation, and stabilizing the oil temperature within the optimal working range (usually 85 ° C-105 ° C), thereby ensuring the lubrication performance, cleaning ability, and stable operation of the engine oil. As an original component, it usually adopts a plate fin structure with a core made of aluminum alloy or stainless steel material, which has the characteristics of large heat dissipation area, high thermal conductivity efficiency, corrosion resistance, and good compressive strength. Its internal design features complex coolant and oil channels, and precise welding processes ensure complete isolation and no leakage between the two media.
 

To ensure the long-term efficient operation of the oil radiator core, regular inspections and preventive maintenance are necessary. It is recommended to check the exterior of the radiator core and the sealing gasket (O-ring or gasket) at both ends for oil or water stains every 500 hours of operation or in conjunction with regular engine maintenance. This is the key to determining whether there is internal or external leakage. After every 1000-2000 working hours, specialized cleaning agents or low-pressure water guns should be used to backwash the external fins of the radiator core in reverse, remove clogged dust, willow catkins, and oil stains, and maintain smooth ventilation. If there is abnormal emulsification of engine oil (the oil appears milky white), floating oil in the coolant tank, or abnormal increase in oil consumption, it may indicate a leakage between the oil and water channels inside the radiator core. It is necessary to immediately shut down for maintenance and replacement.