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Old 01-28-2022, 04:05 PM   #1
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C12 Cat Radiator Water leak

Hello everyone,

We have a 1995 Affinity with a C12 cat. have a coolant leak between the water pump and the oil cooler. Went to cat to get parts. Showed them a picture where metal pipe comes out of water pump and then dose a little "J" into the oil cooler. Where the pipe goes into the oil cooler it looks like the pipe has a "O" ring and pushes in to cooler. Guy at cat told me some one modified. We have owned unit since it was a little over a year old. Has any one had a leak here and seen same thing. Cat tell me it should just be a straight pice of radiator hose. Its not all.

Thank you Jeff
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Old 01-28-2022, 09:05 PM   #2
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Send the picture and Iíll try to take the same of my c12.
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Old 01-29-2022, 08:01 AM   #3
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Does it look "different" from this photo?

Provide the engine serial number and I (or you) can look up the parts breakdown on the CAT parts site. https://parts.cat.com/en/catcorp
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Old 01-29-2022, 08:22 AM   #4
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This is a picture of the water pump and pipe into the oil cooler
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Old 01-29-2022, 08:25 AM   #5
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Thank you Sir. Serial number 9CK105505
I will also look on cat website.

Picture is different.
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Old 01-31-2022, 09:12 AM   #6
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Sorry Jeff but I can't seem to see that area of my engine compartment that shows the water pump in the picture you posted. I tried from various angles but can't quite get a pic. Good luck with the Cat website

Kevin
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