5.9L 12V Performance Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps Related to Performance and Longevity

fuel lines

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Old 06-30-2010, 09:06 PM
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Default fuel lines

hey guys i need to replace my fuel sending unit in the tank and the lines running from it along the frame to the engine there all rusted. Anybody have this issue or ideas of what would work?
Thanks
 
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Old 06-30-2010, 09:14 PM
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yeah when I replaced my fuel lines they were all very rusty.

If you have the extra coin now would be a good time to upgrade your fuel pump to and air dog or fass system. they come with everything you will need to replace all the old lines, just not the return lines.

Or just buy some fuel hose and run some new lines
 
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Old 06-30-2010, 11:29 PM
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Old 07-01-2010, 04:51 AM
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Old 07-01-2010, 07:31 AM
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The local truck shops around here sell the 3/8 rubber line for .75/ft.
 
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Old 07-01-2010, 08:44 AM
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Thank you guys very much, i guess i will think about going all out. mine as well do it right the first time right. Thanks again.
 
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Old 07-01-2010, 11:48 AM
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You may also want to replace the short pre-formed rubber elbow that goes between the lift pump and pre-filter/heater.

You can buy the Cummins part number for $25 or the Dodge part number for $8. I got lucky and found one at the local dealer.

Dodge part # 4883978-AA. Geno's has the Cummins part number.
 
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