Register Now

**pick44** · 01-07-2021, 06:31 PM

I have seen the videos on how to replace and it doesn't look that hard. I am not a boat mechanic, but will to give it a go. I cannot find which thermostat I need.
My yamaha is the TLRV Model, but I cannot find that when looking for the correct thermostat.

What am I missing?

**Liljonboat** · 01-07-2021, 06:34 PM

6e5-12411-20-00

**pick44** · 01-07-2021, 06:41 PM

Thank you

**pick44** · 01-07-2021, 06:48 PM

I see it being sold 12411-20-00 as New 12441-30-00. Is this the one?
I also will order the gasket. Thanks again

**cclayton01** · 01-07-2021, 06:49 PM

Very easy to replace. Remember you have two thermostats on your motor.
I’ve ordered from boats.net when I had my 2003 Yamaha 115hp.

Gasket
https://www.boats.net/product/yamaha...a9b0c9ff6953ee

Thermostat
https://www.boats.net/product/yamaha...4dadca63c117b6

**pick44** · 01-07-2021, 06:52 PM

So I need to order two of the thermostats and two gaskets. Are they the same number 12411-20-00 New as 12411-30-00?

I would normally take to my mechanic but I might be out of pocket and need to get it done soon. So, I will try it. I will have to find the other thermostat on my motor.

Thanks

**cclayton01** · 01-07-2021, 07:02 PM

Quote:

Originally Posted by pick44

So I need to order two of the thermostats and two gaskets. Are they the same number 12411-20-00 New as 12411-30-00?

I would normally take to my mechanic but I might be out of pocket and need to get it done soon. So, I will try it. I will have to find the other thermostat on my motor.

Thanks

They are the same part number, 12411-20. The gaskets will probably tear apart so order those as well. The thermostat housing is on top of each cylinder head. Kind of a squared shape. Find the engine schematic on boats.net or sim Yamaha it will help a ton.

Don’t over think it, very easy job to replace them.

**pick44** · 01-07-2021, 07:09 PM

Ok thanks. I am going to do this.
blessings, ><>

**ChampT22** · 01-10-2021, 12:24 AM

https://www.boats.net/catalog/yamaha.../1997/c115tlrv https://www.boats.net/catalog/yamaha...er-crankcase-2
THERMOSTAT 6E5-12411-20-00 In Stock$27.65 $23.95

GASKET, COVER 688-12414-A1-00 In Stock$4.85 $4.59

**bwguardian** · 01-10-2021, 10:31 AM

I would also go ahead and get after the poppet valve while you're in there...

01-07-2021, 06:31 PM	#1
pick44 Registered Users-pm+ Join Date: Mar 20 2009 Location: Cypress, TX Posts: 1,373 Rep Power: 13421800	Replacing thermostat on 115hp Yamaha 1997 I have seen the videos on how to replace and it doesn't look that hard. I am not a boat mechanic, but will to give it a go. I cannot find which thermostat I need. My yamaha is the TLRV Model, but I cannot find that when looking for the correct thermostat. What am I missing?

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

01-07-2021, 06:34 PM	#2
Liljonboat Registered Users-pm+ Join Date: Feb 21 2006 Age: 39 Posts: 123 Rep Power: 343850	6e5-12411-20-00

01-07-2021, 06:41 PM	#3
pick44 Registered Users-pm+ Join Date: Mar 20 2009 Location: Cypress, TX Posts: 1,373 Rep Power: 13421800	Thank you

01-07-2021, 06:48 PM	#4
pick44 Registered Users-pm+ Join Date: Mar 20 2009 Location: Cypress, TX Posts: 1,373 Rep Power: 13421800	I see it being sold 12411-20-00 as New 12441-30-00. Is this the one? I also will order the gasket. Thanks again

01-07-2021, 06:49 PM	#5
cclayton01 Registered Users-pm+ Join Date: Jun 06 2005 Location: Bay City,TX Age: 37 Posts: 1,907 Rep Power: 6314743	Very easy to replace. Remember you have two thermostats on your motor. I’ve ordered from boats.net when I had my 2003 Yamaha 115hp. Gasket https://www.boats.net/product/yamaha...a9b0c9ff6953ee Thermostat https://www.boats.net/product/yamaha...4dadca63c117b6

01-07-2021, 06:52 PM	#6
pick44 Registered Users-pm+ Join Date: Mar 20 2009 Location: Cypress, TX Posts: 1,373 Rep Power: 13421800	So I need to order two of the thermostats and two gaskets. Are they the same number 12411-20-00 New as 12411-30-00? I would normally take to my mechanic but I might be out of pocket and need to get it done soon. So, I will try it. I will have to find the other thermostat on my motor. Thanks

01-07-2021, 07:09 PM	#8
pick44 Registered Users-pm+ Join Date: Mar 20 2009 Location: Cypress, TX Posts: 1,373 Rep Power: 13421800	Ok thanks. I am going to do this. blessings, ><>

01-10-2021, 12:24 AM	#9
ChampT22 Registered Users-pm+ Join Date: Mar 06 2011 Location: San Antonio, Texas Age: 68 Posts: 743 Rep Power: 2621503	https://www.boats.net/catalog/yamaha.../1997/c115tlrv https://www.boats.net/catalog/yamaha...er-crankcase-2 THERMOSTAT 6E5-12411-20-00 In Stock$27.65 $23.95 GASKET, COVER 688-12414-A1-00 In Stock$4.85 $4.59

01-10-2021, 10:31 AM	#10
bwguardian archTech Join Date: Aug 30 2005 Location: Clear Lake Age: 54 Posts: 8,513 Rep Power: 21489015	I would also go ahead and get after the poppet valve while you're in there...

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)

vBulletin Message

Cancel Changes

Register Now

Log-in