Any ideas on pre BMW TE/SM starter brush crossover number

Looking to service the starter on a 09 450 SMR and trying to find a croossover part for Mitsuba SM-14 Starter "BRUSH SET". The starter was used for many years on the Husky 4 stroke from 2004-2010? on the SMR450/510 and the TE 250/450/510. My research so far lists many Jap bikes that used a similar starter configuration minus the end cap mounting area...and there are Left and Right turn starters as well. Anyone come up with a known model ,I'd really appreciate it. My SM is a daily driver so I really don't want to pull starter and lay the bike up until part comes in. The OEM starter number was 8000B1373 (old number 800097943).
Thanx again

The SWM RS500R uses the same part # on their starter, you might check into this.

https://www.af1racing.com/Starter-Motor-SWM-8000B1373