Hastings LF426 and general filter question

J

JAG31

New member
What is the general opinion on this filter on a 1975 IH 200 4x4 with a 345?

There is some back and forth online over the "Truck" and "Light Line" filters, where the "Truck" filter is bigger, both in thread size and micron rating, and the LL is smaller in both, and this LF426 has the micron rating of the truck filter(generally, depending on manufacturer and brand) yet has the 3/4 threads and is a similar size to the truck filter.

If I recall, and have found, correctly, it also crosses to the Napa 1773, which we use on our Ford F and L series grain trucks. The Baldwin cross is BT251.

Is there any reason why the LL had a finer rating and smaller filter than the trucks and is there any harm in using this LF426/BT251/1773 on this 345 in a pickup?

Convenience wise, I like the length of this filter as it makes it very easy to change, due to the motor mount and forward facing filter situation on my pickup.

This is the filter my pickup came with after the one oil change it got after it was rebuilt and then parked for 20 years, which is why I ask.
 
Zaedster said:
The loadstar and heavy duty pickups use a larger filter. The threads are larger. I brought them in to offer them on our store a few years ago: https://www.ihpartsamerica.com/store/bwn-b167.html

Scout II or Light-Duty: https://www.ihpartsamerica.com/store/bwn-b2.html
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The Hastings LF426/Baldwin BT251 are, according to Baldwin, identical to the B167, except the 426/251 have the 3/4 threads, like the B2 does. So to me, it looks like the 426/251 has the advantage of the larger truck filter and the advantage of not needing to change the filter housing or adapter, yet there is no mention of it anywhere across IH sites, which seemed odd as there are multiple mentions of swapping the housing to run the truck filter, and people not being able to find the housing or adapter to do so.

My main concern was/is: why is the B2 rated at 12 micron, yet the larger truck is rated at 21, is there a specific reason why the Light Line B2 is so fine compared to the truck filter, when I thought they were the same motors?
 
Who knows. Maybe one should do a 30 year study to see if the 12 vs. 21 micron difference helps longevity. In all seriousness, I do not think it needs to be this deep. Everyone has been using B2's, 1515's, FL-1A...etc since the dawn of time.
 
Zaedster said:
Who knows. Maybe one should do a 30 year study to see if the 12 vs. 21 micron difference helps longevity. In all seriousness, I do not think it needs to be this deep. Everyone has been using B2's, 1515's, FL-1A...etc since the dawn of time.
Click to expand...
That's basically what I was looking for as an answer, as we have Napa 1773 on hand for other trucks and that is a cross of the LF426 that came on this pickup. If there is no issue, I'll run the LF426/BT251/1773 since we already have it.

I simply didn't know if there was a reason for the finer filter on the Light Line, as I've ran into a couple odd IH engineering choices before where, something simple like a filter size, actually does matter and can hurt something.
 
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