Stumped. Maxim 400 DOHC starter oil seal.

[DynaGlide]

I'm having zero luck locating an oil seal between the starter housing and the engine. The one I removed has some markings but they're not legible. It's not labeled on the parts schematic. I tried searching "Mitsbua SM-7" which is the starter PN on eBay and Google. Has anyone had to replace this seal or can offer insight?

 

[DynaGlide]

Well I decided to just mic the seal. It's 15mm x 25mm x 6mm, with a hard casing. After some reading you can apparently use a thinner oil seal with a rubber casing interchangeably. AVX Seals carries a 15mm x 25mm x 5mm Double Lip w/ garter spring. $4 shipped to my door. I might have to try replacing seals in the future by going through a supplier it's a heck of a lot cheaper and easier than buying from manufacturer.