FL-400S on a Subaru

[ABULL4U]

Has anyone ever used a Motorcraft FL-810 shorter or FL-400 longer filter in place of a L-14459 Purolator for a Subaru H-6? The FL-810 looks identical even with the number 20 stampted in the same location, the FL-400 has a different by-pass valve and 16 stampted on the threaded end. I would like to use the FL-400 for longer 8000 mile drains with GC. Would really like to find a Toyko Roki OE filter especially if a longer one was available.
Thanks in advance.

 

[Gary Allan]

Well, I'll venture to say the the 20 and 16 are the thread differences. The 810 and the L14459 are 20x1.5mm threads ..while the FL400 is 3/4-16

I'm not intimately acquainted with the 810 and cannot rattle off the longer (possible) alternatives.

 

[Eddie]

I would just use an OEM or PureOne filter that meets ALL the specs. for your engine. Either filter should easly be good for 8-10,000 miles.

 

[unDummy]

The oversized correctly threaded option for the L14459 is the L24458 which is discontinued.
But, other brands make that size. I use the NapaGold/Wix version.

Check with OEM applications for the bigger filter to see if you can find a ToykoRoki filter in that size. I believe that Honda and Mazda used the l24458 years ago.......