Offshoreonly.com

Offshoreonly.com (https://www.offshoreonly.com/forums/)
-   General Q & A (https://www.offshoreonly.com/forums/general-q-20/)
-   -   HP 500 oil cooler upgrade (https://www.offshoreonly.com/forums/general-q/378870-hp-500-oil-cooler-upgrade.html)

xlint89 04-10-2023 07:13 PM

3 Attachment(s)

Originally Posted by PQ290Enticer (Post 4864329)
Probably a good call. I think my new oil thermostats are going to be constantly cycling because the coolers are waaaaay to big. 3" x 23"
https://cimg4.ibsrv.net/gimg/www.off...f50b2a49cc.jpg

Attachment 577641

What is up with all the 12v+ posts going on? :eek:

Speaking of the oil thermostat, I'm going to replace mine, the spring, and the O ring because of age. But holy crap, $65 for a thermostat? Dam..........

xlint89 04-10-2023 07:22 PM

I finally got an answer from my engine guy. He says with my HP, run the same one that came with the HP 500, but replace the one I have. Not worth risking thousands for a few hundred bucks.

I see OEM are discontinued. But Mr Cool has a replacement for $300 and Seakamp has one also for $365.

So that's the route I'm going.

The only thing that stinks is the replacement cooler still only has 1/2" NPT oil hose fittings. The performance coolers have 3/4" So you can install larger oil hose.

Thanks for the replies everyone.


All times are GMT -5. The time now is 01:11 PM.


Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.