SOLVED: Want to replace 98 force 120 horsepower THERMOSTAT need sierra part number

Bustedknuckle84

Chief Petty Officer
Joined
Sep 29, 2010
Messages
421
Order sierra 18-3553 thermostat but ended up being way to small.
I show the following part numbers As replacements.

29 SKU: F664068
THERMOSTAT (130 DEGREES) 1 $14.25
29 SKU: 859620
THERMOSTAT (118 DEGREES)

The thermostat that came off says 130 on it.

will the one inch sierra 18-3559 work?
 
Last edited:

roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,657
Re: Want to replace 98 force 120 horsepower THERMOSTAT need sierra part number

Re: Want to replace 98 force 120 horsepower THERMOSTAT need sierra part number

Sierra doesn't make one for that motor, or at least it doesn't show up on any parts lists I have.


Just buy the F664068 from a Merc dealer and be happy knowing you have the right one. They are only $16.
 

Bustedknuckle84

Chief Petty Officer
Joined
Sep 29, 2010
Messages
421
Re: Want to replace 98 force 120 horsepower THERMOSTAT need sierra part number

Re: Want to replace 98 force 120 horsepower THERMOSTAT need sierra part number

Sierra doesn't make one for that motor, or at least it doesn't show up on any parts lists I have.


Just buy the F664068 from a Merc dealer and be happy knowing you have the right one. They are only $16.

F664068 is the small one that doesnt fit it cross references to the 18-3553 for sierra however i ordered the one from amazon and going to try my luck.
 

Bustedknuckle84

Chief Petty Officer
Joined
Sep 29, 2010
Messages
421
Re: Want to replace 98 force 120 horsepower THERMOSTAT need sierra part number

Re: Want to replace 98 force 120 horsepower THERMOSTAT need sierra part number

UPDATE: Sierra part# 18-3559 1" thermostat fits exactly and only $30 from amazon. Its a 110 degree thermostat.
 
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