The small square one would work ok 388685, the other version 438562 would work great too and is easier to rebuild if need be. Some guys have purchased the small cheap ones on ebay for about $15 and I mostly hear about problems with those. You might get lucky, or you might get stranded. I’d stay away. You might have to bite the bullet on the price to get a good OEM fuel pump.
A good compromise, for me anyway, has been to buy the EMP brand (Engineered Marine Products). They’re priced about 1/2 way between OEM and Chineseum. I’ve bought 7 or 8 of their fuel pumps, and other outboard products, and they seem to be of good quality and haven’t had a problem with any of their stuff.
