Step-by-Step Guide to Replacing the Water Pump in a Hino 338
1/30/20251 min read


Replacing the water pump in your Hino 338 may seem daunting, but with the right tools and guidance, it's a manageable task. The water pump plays a vital role in your vehicle's cooling system, ensuring that the engine runs at optimal temperatures. This guide will walk you through the process step by step, making it easier for you to maintain your truck's performance.
Tools and Materials Needed
Before you begin, it's essential to gather all necessary tools and materials:
Socket set
Wrench set
Torque wrench
New water pump
Gasket or sealant
Coolant
Drain pan
Safety goggles and gloves
Step-by-Step Replacement Procedure
Follow these steps to replace the water pump in your Hino
Remove coolant
Remove radiator or only loose its mount bolts make some space
Remove fan, pully and fan belt
Remove benzo bolt and water pipe
Remove 8 bolts from its front side
And then remove 3 bolts from upper side
remove water pump
clean all gasket area
Put new gasket or silicon
Put new water pump
Now tight all the nuts and bolts
IN THE END START ENGINE AND CHECK IF THERE ARE ANY LEAKINGS OR NOT.
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