Need 140deg thermostat kit for Mercruiser 4.3 TKS

[Robert95z]

Can someone help me find the correct thermostat kit for an 09 Bayliner 185 with a Mercruiser 4.3L TKS? Im really confused

 

[Bt Doctur]

engine serial number ?

 

[Robert95z]

The engine number looks like it used to be on the carb, but has faded and is completely gone now. Any other locations to find the engine serial?

 

[Robert95z]

Could this be it? It was on the emission control information tag

Serial # 1A32705

 

[thumpar]

Could this be it? It was on the emission control information tag

Serial # 1A32705

That is not it. Check down by the starter on the block.

 

[Robert95z]

I'll check it tomorrow, just dropped it back off at storage. Gotta get ready for work.

 

[Fun Times]

Could this be it? It was on the emission control information tag

Serial # 1A32705

Close, you are missing one number and it looks to be at the end.

Also the correct thermostat for this engine model is 160 degrees not 140. If you have closed cooling, you'd need a 170*.

http://www.mercruiserparts.com/Show...r=13798&bnbr=170&bdesc=Thermostat+and+Housing

http://www.mercruiserparts.com/selectDocs.asp?doc_nbr=884714004

The 160 "kit" number is 807252Q5, http://www.iboats.com/mall/partfind...gd_poid=355388&gd_row=73&session_id=386642515

 

[Robert95z]

Well im a big dummy. I typed the serial number wrong its actually Serial# 1A321705

And I want a 140 because im having diesling problems, and only thing I have left is the engine is too hot. So i want to try that

 

[Watermann]

First thing to do is put a water pump kit in the lower unit, with over heating you always start at the bottom and work your way up.

What temp does your gauge say? Dieseling could be something else besides heat.

 

[Robert95z]

The gauge reads just over 175.. Im guessing ~180. I have not verified the reading with an infrared gun yet.