PC300-7 PC400-7 excavator engine cooling fan blade 600-635-7870

The 600-635-7870 engine cooling fan blade is an aftermarket replacement designed to maintain stable airflow through the radiator and cooling system for Komatsu excavators. This fan blade is commonly referenced for PC300-7 / PC400-7 applications, and some catalogs also list it for PC450-7 / 6D125 arrangements. Always confirm by part number + machine serial number before ordering. 

Key Benefits

• Helps restore proper engine cooling airflow and reduce overheating risk

• Direct-fit replacement based on OEM reference 600-635-7870

• Suitable for repair shops, fleet maintenance, and rebuild projects

Common Symptoms of a Worn Fan Blade

• Engine temperature runs higher than normal under load

• Visible cracks, deformation, or missing material on the blade

• Abnormal vibration/noise near fan area

• Reduced cooling efficiency after long operation

Compatibility Notes (Important)

This part is commonly referenced for Komatsu excavators such as PC300-7 / PC400-7, and is also widely listed with 6D114/6D125 and SAA6D114E/SAA6D125E engine arrangements depending on machine configuration and serial breaks. Please confirm the exact match using OEM part number 600-635-7870 and your machine serial number.