My carb is marked WMK37 1. It does NOT appear in any part catalog. Rebuild Kit ?

[Mr. Merc 40]

Searched internet. Will a WMK38 work?

[boats.net]

What is serial number and model?

[Mr. Merc 40]

Serial 6142138 Model 1040522 2 cyl. 40 hp

[Ski]

The gasket kit is 27-78028A79,

[Mr. Merc 40]

Thanks, Ski