Mystery filters in annual service kit

[AKPacker]

I scored a couple 57K4845-007 annual service kits for a very reasonable price (NSN # 2590-01-603-9368 ). The seller said that they were for A1P2 trucks, so I'm familiar with most of the parts in the kit and they are applicable to my C7 truck, but there are 2 small mystery filters that I have not been able to find reference to in any of the TMs. Does anyone know what these filters are for?

• Strainer Element, SE - NSN # 4730-01-570-7725
• Filter, Fluid - NSN # 2940-01-570-9283

I thought the one on the right below may be a pre-HEUI pump filter like CAT includes on the newer C7 HEUI pumps, but it is physically quite different from the CAT part.

Mystery filters:


Full kit:

 

[MugOfPaul]

I would guess at least one of those is for the hydraulic system which is unique to the A1P2.



https://ebay.us/m/yo5pfo

 

[GeneralDisorder]

Winch hydraulic filter, and armored cab hydraulic lift system filter I believe.

 

[AKPacker]

Thanks guys!