What Oil Filter Number...

[Cornholio]

Yes, in my experience WIX makes the NAPA filters.

I just looked at the link that MJCougler posted and noticed that the stock sized 51515 unit will filter down to 21 micron but the larger 2 quart version (51773) is rated only to 32 micron. Better stick with the original size for better filtration. I think the larger version is meant more for farm equipment.

http://www.wixfilters.com/filterlook...asp?Part=51515
You will see our engine listed in their application list.
JEEP ALL MODELS L6 3.7L 230 OHC

http://www.wixfilters.com/filterlook...asp?Part=51773

[bmac6026]

motorcraft FL1A, walmart in stock.

I have also had and used these on my trucks

[militarypotts]

Napa has a good filter and I have started using them on my "fleet". Wix is a brand that has been around since Moby Dick was a minnow...

Don, I thought Moby Dick was a whale?

[militarypotts]

And the minnow was the skippers boat on Gilligan's Island.

[MJCougler]

Cornholio,

Good catch! When I looked at the specs, I didn't even notice the micron rating. Interesting that they would have two filters on their assembly line, and to have a different micron (size) filter rating. Would this mean they are using a different paper medium? Why not use the finer filtering paper on both filters? And, the two quart filter is only 2 inches longer than the 5-inch filter. That volume of a cylinder math problem is incorrect. Things that make you go Hummm!

[Don Cavey]

Don, I thought Moby Dick was a whale?

Yes he was! Just a figure of speech. A friend of mine used that expression in the 70s. I was surprised when I heard a similar version, "...Since Moby Dick was a sardine..." on American Hoggers and had to laugh out loud.

But back to the OP, I saw a cut-away of the NAPA filter at their store next to cut-aways of of other brands. The NAPA filter had more "guts" and the others looked rather sparse with less paper in the interior.

[Dreadwater]

Check out carquest oil filter no. 85773. It's twice as big but has the same specs as the original and in my opinion looks alot better compared to stock

[Jasperzigterman]

We went with a Mann Filter W940/1, fits perfectly.