For the Powershift models in that chart -
Wix shows Yanmar 19446448310 crosses to their #51515. Which also matches NAPA 1515.
And searching again on that Yanmar #, '19446448310', a
UK-Badwin cross reference chart shows their B-2 as equivalent to Wix 51515 and NAPA 1515.
My conclusion: I run NAPA 1515 on the YM186D.
Morning California,
I go at it a little differently, but come to a similar conclusion about that NAPA 1515 filter on the YM186D.
I don't know who put together the cross reference charts or what criteria they used, that's why like most mechanics I try to put my knowledge to use on oils and filters.
For filters I look at flow rate right off the bat. That controls everything. Then what the filter material is made of, target micron size, surface area, and how supported.
Since these are suction side filters, is the bypass valve rating appropriate? How about the burst pressure?
And anything else that the filter company might think would influence me....For example, special materials...or do they do any SAE or ISO testing? Basic particle count (beta test)?
I try to avoid advertising and hype in favor of specifications and test results. My thinking is that a manufacturer's advertising dept can say anything they want to about performance because that is opinion. But mfg. specs are traceable enough to make outright lies harder to get by with. Not that this is a perfect world.... remember Volkswagon ??
https://www.napaonline.com/en/p/FIL1515 - ain't the internet wonderful..
California, getting back to your filter choice.... The NAPA 1515 specs say when it is new it flows 7 to 9 gallons/minute - and that is not great but I'd say it is adequate for your YM186D with a hydraulic pump cranking out 4.8 to 5 gallon/minute pumping a standard weight trans/hydraulic fluid (& no water!
) . There's not much leeway, but if the oil is clean that filter works fine & can even handle some dirt.
However, even when new, that same NAPA filter would be a little shy on flow capacity for the YM336D with it's larger hydraulic pump and higher flow rate. You could use it, but even a little bit of crud is going to reduce its flow enough to put it into bypass mode - which means that basically the filter is no longer in the system and does no filtering at all. So change it quite often.
For my own choice in filters and ols I figure that the company with the most to gain from specifying a really good filter & oil is whoever makes the rest of the system - whether that is transmission, engines, or hydraulics.
Of course the companies who make the best are likely to also have engineers who go overboard protecting their designs....and end up with an OEM filter so fancy that it costs so much that people don't use it. Same for oils. It's weird to see them go to so much effort to get things perfect that they end up promoting the exact opposite.
I find that kind of up-side-down engineering thinking endlessly fascinating. And I'm not alone; it's spawned an entire aftermarket industry.
rScotty
