M939A2 baldwin fuel filters

[Alexsha]

Has anyone used Baldwin filters in place of Napa? Ive read that in general Baldwin has better micron ratings. Are the 10 micron Napa filters enough?

Canister:
Baldwin PF316 - Napa 3401

Spin-on:
Baldwin BF7921- Napa 3472

 

[Jeepsinker]

10 micron is NOT enough. Five or less is preferable. Ten is only good for a primary filter.

 

[Alexsha]

If 10 is not enough, why are all the recommended filters Napa parts with 10+ micron ratings? What secondary filter has a 5 micron rating?

 

[Jeepsinker]

To be honest, I have never looked into the specs on either the primary or secondary filters on these trucks. If what you say is true and the secondary filter on the side of the block on my 8.3 is only 10 micron ( and I run a Baldwin) then I'm going to start hunting for a better filter for it.

 

[Alexsha]

What's the model number of the Baldwin filters you're running?

 

[Alexsha]

I'm going to try a Baldwin BF7591-D. It's supposedly a 1 or 2 absolute micron filter.

 

[Jeepsinker]

That sounds great. I haven't gotten out to my truck to check for the filter number yet.

 

[Alexsha]

After talking with Baldwin, it seems the BF7772 is the best replacement for the BF1226 (NAPA 3472). The BF7772 has a 1~2 micron nominal rating with a 5 micron absolute. I have ordered the PF316 and BF7772. I'll post back here when I get them and they're installed.

 

[98G]

One thing about filtration is that the finer filters clog much more easily. This is particularly evident in cold weather when you start to get microcrystalline gelling.

When Ram went to finer filters on their cummins powered trucks you'd see them disabled from gelled fuel sooner than the older trucks with a slightly coarser filter.

In general though, finer is better obviously. I'd just be sure to carry spares if going with a very fine filter. (A good idea in any event)