The million dollar question!
My guess....
- most OEMs are run by manufacturing types that really don't understand the parts business. The parts business is just a number for them on their financial statement.
- to date, Intrupa and SMH have stayed fairly low on the radar. Most of the "big" guys at the OEMs knew about their aftermarket competition but really didn't understand what they were all about.

The only ones who appear to have it figured out is MCFA with Rapidparts. They are home grown, organic, only sell to their dealers, etc, etc.

Now that TVH is high on the radar, one must wonder if some of the upper management has woken to the fact that they helped create this TVH global competitor.

I think it's sort of like GM waking up and realizing Toyota is kicking their butt.