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Old 08-11-2008, 08:18 AM
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Question Impeller for '94 prostar 190?

My '94 Prostar 190 (non LT1 engine) needs a new water pump impeller... engine temp. forced me to shut down over the weekend and when I opened the impeller housing I found the impeller was down to 2 blades!

Can anyone point me to the correct replacement part? I can't find the spec. anywhere.

Also, any recommended sites to order from are appreciated.

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Old 08-11-2008, 08:28 AM
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This might be what you are looking for. I have been very pleased with price and service from SKIDIM for the last 10 years. If you aren't certain about the part you can call them and somebody will help you out.

Know how to get the old one out?
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Old 08-11-2008, 08:31 AM
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damaged442 damaged442 is online now
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Join Date: Aug 2007
Boat: 1989 Tristar 190, Indmar 351, 250HP
Location: Central NY
Posts: 688
Pretty sure that's still the impeller for the Johnson 812 pump, right? Someone will let me know if I'm wrong that's for sure! There are a few dealers here that can get you the right one. Plus, there's www.skidim.com. I just picked up a couple and they were about $35 each.
1989 Tristar 190 - Indmar 351, 250HP, 1:1, 530 hours
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Old 08-11-2008, 08:38 AM
bigmac bigmac is offline
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Join Date: Jun 2005
Boat: 2004 Maristar 230 VRS
Location: Central Minnesota
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The Johnson 812 impeller should be readily available from any MasterCraft of Malibu dealer, if you don't want to buy it online. Like most, I keep one or two of the things around as a spare.
'04 MariStar 230VRS/MCX
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Old 08-11-2008, 09:28 AM
mayo93prostar mayo93prostar is offline
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Join Date: Dec 2004
Boat: 1993 Prostar 190 Blue Stars and Stripes, Powerslot
Location: Annapolis, MD
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tlane, the info here appears correct. the skidim part is what I use in my 93 prostar non LT1. buy two so you have one as a spare and/or for next one and I think they come with the white gasket. If not, be sure to order gasket for cover. also, it may be good to check your thermostat area for shreds of rubber from the impeller. for that matter, I recommend you change your thermostat and gasket at the same time, if it has not been replaced in a couple years. fairly cheap insurance to keep it running without incident.
1993 Blue Stars and Stripes Prostar Powerslot 351HO
Mastercraft: Face It - If you are not a good skier behind this boat, you are not a good skier.
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Old 08-11-2008, 12:27 PM
TMCNo1 TMCNo1 is offline
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Carry a spare in the boat, Carry a spare in the boat!

So, that means you buy two of them now, carry a spare in the boat, then when you replace the next one, order/buy just one!
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Last edited by TMCNo1; 08-11-2008 at 12:29 PM.
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Old 08-11-2008, 12:35 PM
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Talking Thanks to all

Solid responses - thanks to all for the info!
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Old 08-11-2008, 12:40 PM
nascar nascar is offline
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Boat: 1986 skier / prostar , Prostar190 , 1994 sold
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I ordered the same one for my 1994 Pro Star 190 from www.mymastercraft.com ( Charlotte , NC ) just a couple of weeks ago , I think it was around $52 and had it within two days .

Last edited by nascar; 08-11-2008 at 12:41 PM. Reason: change word
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Old 02-20-2009, 03:37 PM
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flipper flipper is offline
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Boat: 1991 Prostar 190, fuel injected 302
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Originally Posted by nascar View Post
I ordered the same one for my 1994 Pro Star 190 from www.mymastercraft.com ( Charlotte , NC ) just a couple of weeks ago , I think it was around $52 and had it within two days .
Dang....he's expensive
Lots of power is good, more is better, too much is just right.

'91 prostar 190
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Old 06-29-2009, 04:52 PM
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I am going to try and replace the impeller pump tomorrow. How hard is it replace and is there anything special I need to know.
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1994 prostar 190, impeller, water pump

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