Getting ready to change the front fuel filter and am reading many use the 1-1/8" 6-point socket and that seems to work fine, but I'm also reading that the correct socket is actually metric, but getting conflicting info that it is 28mm or 29mm. Which metric size is it for those in the know?

'10-'17 6.7L Dodge Cummins engines. Use the 28mm socket on the raised hex on the fuel filter housing.'00-'07 5.9L Dodge Cummins engines. Use the low profile, 29mm socket on the raised hex on the fuel filter housing.this is good place for info https://www.genosgarage.com/category/tools

Not sure I'm the metric size. I use a 1 1/8" socket and it it works fine.

Learjet wrote:'10-'17 6.7L Dodge Cummins engines. Use the 28mm socket on the raised hex on the fuel filter housing.'00-'07 5.9L Dodge Cummins engines. Use the low profile, 29mm socket on the raised hex on the fuel filter housing.this is good place for info https://www.genosgarage.com/category/toolsYeah, that makes sense, the 29mm is for the early caps and the 28mm is for the later caps.

IdaD wrote:Not sure I'm the metric size. I use a 1 1/8" socket and it it works fine.That's what I've been reading too, the 28mm and 1-1/8" are so close it makes no difference. Most important thing from what I've read is to make sure it is a 6-point socket and not a 12-point as the 12 point can round off the corners on the cap.

1 1/8" 6 point socket (or 28mm) with 1/2" wobbly then 12" 1/2" extension then a long handled 1/2" ratchet will do the job just fine! This is for the 10-17 era.You will also want this wrench to remove the water sensor for the rear primary filter. Amazon also sells the MOPAR filter set for 70-$80 delivered.Lisle 34900 OEM Water Sensor WrenchSold by: Amazon.com LLC$9.97Dodge Ram 6.7 Liter Diesel Fuel Filter Water Separator Set Mopar OEMSold by: Athens Dodge Chrysler Jeep$70.00

Socket for 2016 CTD front fuel filter cap | Good Sam Community

Ron3rd
Explorer III
Jun 11, 2017
IdaD wrote:
Not sure I'm the metric size. I use a 1 1/8" socket and it it works fine.

That's what I've been reading too, the 28mm and 1-1/8" are so close it makes no difference. Most important thing from what I've read is to make sure it is a 6-point socket and not a 12-point as the 12 point can round off the corners on the cap.
Ron3rd
Explorer III
Jun 11, 2017
Learjet wrote:
'10-'17 6.7L Dodge Cummins engines. Use the 28mm socket on the raised hex on the fuel filter housing.

'00-'07 5.9L Dodge Cummins engines. Use the low profile, 29mm socket on the raised hex on the fuel filter housing.

this is good place for info https://www.genosgarage.com/category/tools

Yeah, that makes sense, the 29mm is for the early caps and the 28mm is for the later caps.
IdaD
Explorer
Jun 11, 2017
Not sure I'm the metric size. I use a 1 1/8" socket and it it works fine.
Learjet
Explorer
Jun 11, 2017
'10-'17 6.7L Dodge Cummins engines. Use the 28mm socket on the raised hex on the fuel filter housing.

'00-'07 5.9L Dodge Cummins engines. Use the low profile, 29mm socket on the raised hex on the fuel filter housing.

this is good place for info https://www.genosgarage.com/category/tools

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Socket for 2016 CTD front fuel filter cap

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