D 89103 RADIATOR

The D 89103 radiator is designed for the engine cooling system of CASE 580 C backhoe loader.

Its primary function is to dissipate engine heat and maintain a stable operating temperature during daily and heavy-duty machine operation.

This radiator is directly interchangeable with part number D77843 and can be installed without any modification.

It is installed at the front cooling / fan side of the engine compartment.

The radiator is manufactured with:

• high-density cooling fins

• reinforced core structure

• durable aluminium and metal construction

to ensure:

• efficient heat dissipation

• stable coolant circulation

• reliable cooling performance under continuous working conditions

This radiator is suitable for replacement, overhaul and cooling system restoration for CASE 580 C machines.

Troubleshooting – When should this radiator be replaced?

Replacement or inspection is recommended when the following conditions occur:

• engine temperature rises abnormally

• frequent overheating during operation

• coolant level drops without visible hose leakage

• coolant stains or wet marks found on the radiator core or tank

• radiator fins are severely blocked, bent or damaged

A faulty radiator can reduce cooling efficiency and may lead to engine overheating and internal engine damage.

D 89103 水箱（散热器） 适用于 CASE 580 C 挖掘装载机发动机冷却系统，主要用于将发动机运转时产生的热量有效散出，并保持发动机在正常工作温度范围内。

本产品可与零件号 D77843 直接互换使用，无需任何改装即可安装。

安装位置位于发动机前方风扇侧冷却区域。

本散热器采用：

• 高密度散热片

• 加强型水芯结构

• 坚固耐用的金属材质

可确保：

• 良好的散热效果发现

• 冷却液循环稳定

• 适合长时间及高负荷作业环境

适用于 CASE 580 C 机器水箱更换、整修及冷却系统恢复工程。

故障排查 – 什么时候需要更换水箱？

出现以下情况时，建议检查或更换本散热器：

• 发动机温度异常升高

• 工作时频繁过热

• 冷却液减少但未发现水管漏水

• 水箱芯体或水室表面有渗水或水渍

• 散热片严重堵塞、变形或损坏

损坏的水箱会影响冷却效率，可能导致发动机过热甚至内部损坏。