MT3000 hydraulic oil filter, v idler pulley

[NOOBinOR]

Reached out to Struck for info, archiving it here for others...

000680B Hydraulic filter (MT3000, MD750, MH5000 Serial #H1371 and earlier) Napa #1259

MT3-422 4" V Idler, 4" x 3/8 Bore

Since their price on the filter was 2X of Napa's, I figured I would also try to source the pulley elsewhere...

https://www.amazon.com/Phoenix-Mfg-Stratton-Simplicity-V-Groove/dp/B07KMHQYVJ

Has anyone replaced this pulley and have info? Looking at these on Amazon, the diff between 'em seems to be the "front side offset". The one above is .5", and here's a discontinued one with .236":

https://www.amazon.com/dp/B07KMHXJRB/

Any clue appreciated...