Can the oil thermostat cover gasket be purchased?

Biginboca · 10-31-2018, 04:04 PM

Looking for a replacement for this gasket:

I just installed a used cooler with OFH and T stat and had a leak here:

I’m not surprised it leaked I should never have opened it but I wanted to clean up the parts I bought, lol. Anyway I sealed it with RTV for now and then spent some time googling and can’t find a part number for that gasket.

feuer · 10-31-2018, 04:15 PM

To my knowledge no.

IllSic_Design · 10-31-2018, 04:17 PM

I was wondering about this as I am starting to develop a leak at that gasket. Have changed both other OFHG gaskets but I can definitely see it is coming from that spot as there is only a little oil residue around around that plate. Looks like I might have to use silicone to try to seal it.

DR-JEKL · 11-01-2018, 04:33 PM

BMW doesn't sell this gasket separately apparently, but there are 3rd party suppliers who sell a neat billet alloy cover which comes with a gasket

IllSic_Design · 11-01-2018, 04:45 PM

Quote:

Originally Posted by DR-JEKL

BMW doesn't sell this gasket separately apparently, but there are 3rd party suppliers who sell a neat billet alloy cover which comes with a gasket

Good to know, do you have a link or a name for the cover? Thanks

DR-JEKL · 11-01-2018, 04:51 PM

Quote:

Originally Posted by IllSic_Design

Quote:

Originally Posted by DR-JEKL

BMW doesn't sell this gasket separately apparently, but there are 3rd party suppliers who sell a neat billet alloy cover which comes with a gasket

Good to know, do you have a link or a name for the cover? Thanks

here you go

https://www.ftpmotorsport.com.tw/pro...stat-cover-kit

Biginboca · 11-01-2018, 04:51 PM

I did the rtv ultra black on the old gasket and am having good results with it so far. I’ve put about 50 miles on the car today and no leaks...

Boland01 · 11-02-2018, 08:01 AM

I also used the black RTV. Been 20K miles with no issues.

IllSic_Design · 11-02-2018, 01:58 PM

But I want a pretty billet cover...... lol

Wolf 335 · 01-19-2021, 05:04 PM

Quote:

Originally Posted by Biginboca

I did the rtv ultra black on the old gasket and am having good results with it so far. I’ve put about 50 miles on the car today and no leaks...

How's this holding up since you did it?

Biginboca · 01-19-2021, 05:38 PM

Quote:

Originally Posted by Wolf 335

How's this holding up since you did it?

It leaked in less than a week and I ended up buying an aftermarket cover with gasket that hasn’t leaked since.

relative4 · 01-19-2021, 05:52 PM

Quote:

Originally Posted by Boland01

I also used the black RTV. Been 20K miles with no issues.

Ditto

Wolf 335 · 01-19-2021, 06:40 PM

Quote:

Originally Posted by Biginboca

It leaked in less than a week and I ended up buying an aftermarket cover with gasket that hasn’t leaked since.

I wonder who makes that octagonal gasket. I looked on Elring's and Victor Reinz online catalog but don't see anything like that.

Do you by any chance know the thickness of the gasket?

TheMidnightNarwhal · 01-19-2021, 06:49 PM

Quote:

Originally Posted by Biginboca

It leaked in less than a week and I ended up buying an aftermarket cover with gasket that hasn’t leaked since.

Bro?? No thread updates haha.

And do you have a link then for the aftermarket solution?? TIA

Biginboca · 01-19-2021, 07:24 PM

Quote:

Originally Posted by TheMidnightNarwhal

Bro?? No thread updates haha.

And do you have a link then for the aftermarket solution?? TIA

Look up. It’s in post number 6 of this very thread

TheMidnightNarwhal · 01-19-2021, 07:39 PM

Quote:

Originally Posted by Biginboca

Look up. It’s in post number 6 of this very thread

Oh yep my bad. I didn't think you had gotten that one.

spidertri · 01-27-2021, 09:01 AM

I had to find this seal when I was installing the Oil tstat on my 128i. A round seal works just fine in the octagon groove. Had it installed since March 2020 with no leaks.

43mm OD, 3mm thick o-ring

Wolf 335 · 01-27-2021, 09:21 AM

Quote:

Originally Posted by spidertri

I had to find this seal when I was installing the Oil tstat on my 128i. A round seal works just fine in the octagon groove. Had it installed since March 2020 with no leaks.

43mm OD, 3mm thick o-ring

Thank you for sharing this!

Would you be able to snap a close up pick of the mating area with the cover on?

9krpmrx8 · 01-27-2021, 09:47 AM

FTP cap comes with a new gasket.

Wolf 335 · 01-27-2021, 12:38 PM

Quote:

Originally Posted by 9krpmrx8

FTP cap comes with a new gasket.

Don't need a new cover. Just want a gasket.

Paying $60-70 for this is ridiculous.

Regular o ring will do just fine as mentioned by spidertri

spidertri · 01-27-2021, 01:38 PM

Quote:

Originally Posted by Wolf 335

Thank you for sharing this!

Would you be able to snap a close up pick of the mating area with the cover on?

I'll have to take a picture tonight of the cover on, but for now here's one showing how far out the oring protrudes when seated in the groove. When I tightened down the cover it sealed up like normal.

They are Viton, resistant to motor oil and good to 400F.

spidertri · 01-28-2021, 06:38 AM

Here's a pic with the cap on, all of the other pictures with the cap off were from when I installed it last year.

10-31-2018, 04:04 PM	#1
Biginboca Colonel 3764 Rep 2,738 Posts Drives: 2009 E92 328i 6MT Join Date: Jun 2017 Location: Boynton Beach, FL... USA iTrader: (3)	Can the oil thermostat cover gasket be purchased? Looking for a replacement for this gasket: I just installed a used cooler with OFH and T stat and had a leak here: I’m not surprised it leaked I should never have opened it but I wanted to clean up the parts I bought, lol. Anyway I sealed it with RTV for now and then spent some time googling and can’t find a part number for that gasket.
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10-31-2018, 04:15 PM	#2
feuer Major General 4276 Rep 9,206 Posts Drives: wife crazy! Join Date: Apr 2015 Location: Chicago, IL iTrader: (5)	To my knowledge no.
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10-31-2018, 04:17 PM	#3
IllSic_Design Colonel 2124 Rep 2,758 Posts Drives: 09 E92 335i Join Date: Jun 2016 Location: Northern California iTrader: (1)	I was wondering about this as I am starting to develop a leak at that gasket. Have changed both other OFHG gaskets but I can definitely see it is coming from that spot as there is only a little oil residue around around that plate. Looks like I might have to use silicone to try to seal it.
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11-01-2018, 04:33 PM	#4
DR-JEKL Major General 898 Rep 6,285 Posts Drives: Space Grey E92 335i 6MT Join Date: Jul 2012 Location: Newcastle Ozstraylia iTrader: (3)	BMW doesn't sell this gasket separately apparently, but there are 3rd party suppliers who sell a neat billet alloy cover which comes with a gasket
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11-01-2018, 04:51 PM	#7
Biginboca Colonel 3764 Rep 2,738 Posts Drives: 2009 E92 328i 6MT Join Date: Jun 2017 Location: Boynton Beach, FL... USA iTrader: (3)	I did the rtv ultra black on the old gasket and am having good results with it so far. I’ve put about 50 miles on the car today and no leaks...
	Appreciate 1 StradaRedlands4943.00 Quote

11-02-2018, 08:01 AM	#8
Boland01 Lieutenant 149 Rep 460 Posts Drives: 2010 535ix, 2008, 2007 335i Join Date: Sep 2013 Location: Magnolia, TX iTrader: (0)	I also used the black RTV. Been 20K miles with no issues.
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11-02-2018, 01:58 PM	#9
IllSic_Design Colonel 2124 Rep 2,758 Posts Drives: 09 E92 335i Join Date: Jun 2016 Location: Northern California iTrader: (1)	But I want a pretty billet cover...... lol
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01-27-2021, 09:01 AM	#17
spidertri Lieutenant 398 Rep 464 Posts Drives: 11 128i 6MT Sport Join Date: Sep 2010 Location: Rock Hill, SC iTrader: (1) Garage List 2011 BMW 128i [0.00]	I had to find this seal when I was installing the Oil tstat on my 128i. A round seal works just fine in the octagon groove. Had it installed since March 2020 with no leaks. 43mm OD, 3mm thick o-ring __________________ 11 128i slicktop 13 WK2 19 Alltrack S
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01-27-2021, 09:47 AM	#19
9krpmrx8 Clean is the new cool, keep it that way. 808 Rep 1,685 Posts Drives: 11' Alpine White 335i Sedan Join Date: Jan 2016 Location: San Antonio, Texas iTrader: (0)	FTP cap comes with a new gasket. Attached Images __________________ 2011 335i, FBO, N55+ Turbo, full E85, S55 intercooler, etc. 2015 X5 35i Xdrive
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01-28-2021, 06:38 AM	#22
spidertri Lieutenant 398 Rep 464 Posts Drives: 11 128i 6MT Sport Join Date: Sep 2010 Location: Rock Hill, SC iTrader: (1) Garage List 2011 BMW 128i [0.00]	Here's a pic with the cap on, all of the other pictures with the cap off were from when I installed it last year. __________________ 11 128i slicktop 13 WK2 19 Alltrack S
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