Here is some data I have collected over the last 18+ months. All of it is directly from the mfgr.

Isn't the Baldwin PF7977 the newer version of the PF7777? That is what I have been using.

Yes it is, and can/should be used over the PF7777.

I just purchased the luberfiner LFF9594 and the donaldson P551315 for my airdog 150 and noticed that they do not have internal orings like the original filters my airdog came with. Is this a problem, or will it affect the performance?

AFIK it will be fine. If filters need o-rings they are supplied with them.

Apache Driver, Thanks for the reply, at least now I have the filters Airdog should have installed in the first place! Chris

AFIK it will be fine. If filters need o-rings they are supplied with them.

I just purchased the luberfiner LFF9594 and the donaldson P551315 for my airdog 150 and noticed that they do not have internal orings like the original filters my airdog came with. Is this a problem, or will it affect the performance?

Ok am I missing something? the numbers you posted is that the fuel filter numbers only and not the water seperator numbers.

Ok am I missing something? the numbers you posted is that the fuel filter numbers only and not the water seperator numbers.

The LFF9594 is a water separator and the P551315 is the fuel filter. Chris

ok..so using the stock fuel filter housings..the 03-07 5.9 common rails.... can use those fuel filters in my truck that is a '01..since they have a better micron filtering?:thumbup2:that would be cool!!!

ok..so using the stock fuel filter housings..the 03-07 5.9 common rails.... can use those fuel filters in my truck that is a '01..since they have a better micron filtering?:thumbup2:that would be cool!!!

Yes you can!

--- Update to the previous post...

I updated the spreadsheet to include some filters with WIF sensors, I am upgrading my system in the next month or so to include an aux fuel heater and 2nd WIF sensor.

seems like very useful data. Ive been running the pf7977 for quite a while with no problems