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Old 01-03-2020, 10:05 PM   #1
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3126 fuel hose fittings

Have a 3126 in a 99 freightliner chassis that ha a leak in one of the fuel hoses going up to the filter/primer pump located on the top of the engine.

Was caused by chafing between the hoses not tightly secured.



Just wondered if anyone knew what type of hose fittings are used on those hoses. Don't look like regular compression fittings used on hydraulic hoses so wondered if they were the type that had a tapered threaded sleeve that screwed in the bore of the hose and an outer plain sleeve that covered the outside of the hose when fully screwed in


Reason for asking is I'm out of town with a fuel leak and a couple of days to spare ti catch up on some maintenance and have enough looped hose that if it was the screwed type I could shorten the hose and reuse the original fitting - but of course not if it is crimped.



Anyone k ow please
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Old 01-06-2020, 09:25 AM   #2
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If the hose has any lettering left on the hose and it states CAT XT-6 or XT-3, than the fuel hose connectors are permeant type connectors. The fittings are none serviceable. You will need to have a new hose assembly made with new O-ring face connectors (flat face). This will seal against the fittings that will have O-Rings installed in a groove.

Now if this is a not a Caterpillar hose than this was modified by someone already.
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Old 01-08-2020, 02:10 PM   #3
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Post a photo of the hose and fitting ends.
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Old 01-08-2020, 02:23 PM   #4
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Look up a hose supplier in your area they should be able to make it for you
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