1998 force 120 HP Thermostst ?

[tomcatcain]

Going to change water pump assembly and thermostat before spring,mercury marine list 2 thermostats.130 degree that the service manual calls for,$13.75 .But then they list a OPT,118 degree for $51.05. Whats the difference between these to create the cost difference? Thanks !!

 

[roscoe]

Re: 1998 force 120 HP Thermostst ?

I have no idea why the cost difference.<br />Also no idea why you would want a 118* stat.<br />Force thermostats that I've seen are either 130* or 143*.<br /><br />You can also get an aftermarket thermostat from NAPA for about $9, but it will likely take two trips there to get it, one to order it, one to pick it up.

 

[tomcatcain]

Re: 1998 force 120 HP Thermostst ?

Tks Roscoe for yr repley,newby at large hp motors,use to a 15 or 25 hp. Have a 19ft trophy to do some trolling off coast of N.C. now ,trying to take of any problems before they happen.Didn,t know why an opt stat ! THANKS !!!

 

[imported_LakeRunner]

Re: 1998 force 120 HP Thermostst ?

I probably passed you on my way out! I port out of New Bern.

 

[andy6374]

Re: 1998 force 120 HP Thermostst ?

If you plan on doing lots of trolling I would go with the 143* tstat or a set of warmer plugs

 

[Dawg2]

Re: 1998 force 120 HP Thermostst ?

Dont know what is right tstat for you but my 1989 85 hp calls for 110 degree tstat it is $32.00 at mercury dealer.......

 

[imported_LakeRunner]

Re: 1998 force 120 HP Thermostst ?

Location, location, location. Colder water needs hotter Tstat. Also the lower Tstat is for high performance (racing), thats why it cost more $$$. At least thats what my mechanic tells me!

 

[imported_bjs]

Re: 1998 force 120 HP Thermostst ?

my tstat was 130 degree i dont remember having other option's my motor is a 1998 120 it runs fine with the 130 t stat.