6.7L Cummins Forum

Removal and Installation of the Cummins 6.7L Fuel Filter/Water Separator Mopar P/N 0518341AA

Job Time: 15 minutes
Tools needed:
5/16 Nut driver or Ratchet and socket
1/2" Drive Ratchet with extension for filter removal
or
Strap wrench
pan or jar for Fuel Drain
Motor oil


Got out there today and changed the Fuel filter and here's how I did it.

From the drivers side of the truck remove the (8) 5/16" screws from the fender liner and there's also a clamp attached to the fender liner by the brake fittings that needs to be pushed out and then remove the liner exposing the filter.









Wipe off all the dirt and junk from the filter, disconnect the Water In Fuel
(WIF) connector from the bottom of the filter and then place a drain pan below the drain valve and then open the drain valve two revolutions to drain the fuel from the filter. ( I used a mason jar stolen from the Queen so I could look at the drained fuel)

Now you have two ways of removing the Fuel Filter. You can either use a 1/2" drive ratchet inserted in the the bottom of the filter (You can't turn the filter the wrong way because the opening for the ratchet will only allow you to remove the filter this way.) or you can use an oil filter or strap wrench as I did.





Make sure when you remove the old filter to remove the drain hose to use on the new filter and you'll also have to reach up into the fuel filter head/Housing assembly and remove the old end seal but it can be thrown away.


Installation

Install the yellow o ring that comes with the Filter and make sure the above end seal is installed.

Lubricate the O-Ring with clean engine oil. (Do not pre fill the filter with fuel or you'll toast your fuel pump.)

Install the filter until you feel it contact the head and then turn 1/2 rotation more.

Install the WIF connector and drain hose.

Prime the engine.
1. Turn the key to the RUN position but don't try to start the engine for 20 seconds.


I took the filter apart and here's what my filter looked like after only 8800 miles. So when the Master Tech I bought lunch for so I could pick his brain told me that the best advice he could give any Cummins owner is to change the fuel filter at least every 10,000 miles he wasn't just blowing smoke and that was the best $10.00 I've spent in a long time.



Note: There's also a secondary filter screen in the top fitting that needs to be cleaned but I couldn't get my camera in to take any pics with the tire on the truck and I was running out of daylight so I'll do a write up next time on that and edit this thread.

Attached Thumbnails

         

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2007.5 Dodge Ram 3500 HD,QC, 6.7L Cummins, 6speed Auto, 4X4, Bighorn Edition.
Click for installs: Carr Steps PML Diff Cover Edge Juice with Attitude Volant Intake Hankook ATM RF10

Excellent directions. I replaced the stock clear drain tube with a longer piece, so I can do the water drain thing from the wheel well and catch it in a container easily. 3/8's ID tubing maybe 18" long.

Did mine today per squids instructions. Went fine, except, I have a 4 X 2 which is a low rider. Need to jack up the front to get enough room...Otherwise OK

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7.5 3500QC 6.7CTD 68RFE Build date June 2007
Superchips tuner 3808, Boost/EGT Laser Gauge, Airaid cold intake

Do you have to pull the fender liner out or can it be done from the top, I'm pretty sure I did my 5.9 from the top, or was that my Powerstroke - I'm getting forgetful as I get older.

You can do it from the top with really long skinny arms. I'm 6'5" and weigh in at 275 lbs. I could not do it. Pull off the fender liner and there it is. If you have a 2 wheel drive, I would recommend putting the left front on a fixed jack stand...Look at the beginning of this post, Squid has done a good job of outlining the steps.

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7.5 3500QC 6.7CTD 68RFE Build date June 2007
Superchips tuner 3808, Boost/EGT Laser Gauge, Airaid cold intake

Yes, Squid did a great job, thanks Squid. I was just checking to see if it was still possible to do it from above. I didn't know if any of the emmission stuff was in the way now. I've only looked under the hood twice since I bought the truck.

This was the easist way I saw to do it. At 47 I've gotten to the point that I either want to be standing up to do a job or sitting down, not going back and forth. Even at 6' 2" I need a step stool to work in the engine compartment on my 4X4 so I took the sit down route.

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2007.5 Dodge Ram 3500 HD,QC, 6.7L Cummins, 6speed Auto, 4X4, Bighorn Edition.
Click for installs: Carr Steps PML Diff Cover Edge Juice with Attitude Volant Intake Hankook ATM RF10

new member, kepster says this site has already been a big help.
atempting my first filter change.thanks again

Well kepster that's what it's here for. Hope to see you around.

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2007.5 Dodge Ram 3500 HD,QC, 6.7L Cummins, 6speed Auto, 4X4, Bighorn Edition.
Click for installs: Carr Steps PML Diff Cover Edge Juice with Attitude Volant Intake Hankook ATM RF10

You do not have to pull the fender liner. It's not the easiest place to get at but I have done mine twice on my 6.7 using a band type filter wrench. Once the wrench has the old filter loose I just spin it off and let it drop in a bucket. The most difficult part is tightening the new filter.