Where to get a IAC for 8.1 Mercruiser?

Here's one way:
upload_2019-7-15_13-58-36.png
 
I have one from a previous boat brand new with gasket.
Ouicksilver 862998
Make offer
 
Let me know how it works out. May get some at that price to keep as spares.

No one has commented on the IAC muffler. Is that merc only?

-Kevin
Don't know about the muffler, but I bought 4 and changing out 2 tomorrow.
 
Starboard engine just started making almost like a gasping sound. Additionally, the idle is wavering - not holding steady. Took an hour long ride today at various speeds and boat ran fine - no alarms, no issues. I connected it to laptop with Diacom software and no codes and the IAC duty cycle is wavering from 15% to 35% at 650rpm. Port motor duty cycle is btwn 22 and 32% at 650RPM (no noises or rpm wavering on this motor).

Haven't ck'd the IAC muffler (I change them every spring) but it's not just the rushing air sound, there's also the wavering idle issue. Do I need to replace the IAC valve? I have a spare that I bought at NAPA years ago. It's properly cross-referenced and the only difference seems to be that it's not painted black.
 
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Holy crap! When I bought my NAPA 6 yrs ago as a spare it was $60 and the Merc was $99. Now they're $150 and $185 respectively. Are these things made of rare precious metals? Inflation, tariffs?!
 
Holy crap! When I bought my NAPA 6 yrs ago as a spare it was $60 and the Merc was $99. Now they're $150 and $185 respectively. Are these things made of rare precious metals? Inflation, tariffs?!
I just checked mercruiserparts.com, 169, yikes. Checked amazon, found the above mentioned standard motor part for 39$, of course, the mercruiser “muffler”, which is in the purchased with list, and is nothing more that a square piece of some type of foam, smaller than the cube in a pair if dice, is 10$, The material to make 100 of these is probably less than a dollar.
 

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