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Old 01-10-2014, 06:24 PM   #1
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Cat 3100 heui water pump?

I'm trying to find the part number for the water pump in my Cat 330hp 3100 heui.

Any clues where to start looking?
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Old 01-10-2014, 07:30 PM   #2
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1st it is a Fuel pump. Get your serial number and call CAT. you can google it and you can find lots of information.
HEUI Fuel Systems
The revolutionary HEUI injector design is critical to the
precision, performance, economy and proven reliability of
the HEUI Fuel System.
Advanced technology yields higher performance
The HEUI (Hydraulically Actuated Electronically Controlled
Unit Injector) Fuel System represents one of the most significant
innovations in diesel engine technology in decades. HEUI
surpasses many of the limitations of mechanical and conventional
electronic injectors, and sets new standards for fuel efficiency,
reliability and emission control.
Available as standard equipment on an ever-widening range
of Cat
ģ Engines and machines, the highly sophisticated HEUI

system uses hydraulic energy instead of mechanical energy to
operate fuel injectors. Working in tandem with the engine’s
ECM (Electronic Control Module), the HEUI system provides
extremely precise control of fuel metering and timing, resulting
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Old 01-10-2014, 08:18 PM   #3
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Do you have the engine serial number?
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Old 01-12-2014, 09:55 AM   #4
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I'm pretty sure I need the water pump replaced, not the fuel pump. The coolant just pours out as soon as I put it in.

I got the part: 20R-0586

Now just to find someplace in Sacramento to install it.
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Old 01-14-2014, 01:39 AM   #5
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Sacramento truck center will do a fine job on your water pump. They have RV specific bays and techs. They can also get the needed parts.
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