WTB: gasket for fuel tank gauge sender

mulberryworks

mulberryworks

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I've got a gas smell issue in my 1970 2800CS. The gaskets on the two gauge senders I have are pretty hard and now that I've got fuel back in the tank, the garage smells.

Does anyone have a source or the specs for the size of the O ring so I can buy one locally? I'm assuming it's an O ring though both of mine look pretty rectangular at this point after years of being installed. Thanks.
 
Yes, it's an O ring. I don't know its size, but you could get the large diameter by measuring the groove in the sender. The smaller diameter might be harder to determine precisely; I'd guess ~1/8" = 3 or 4 mm.
 
rsporsche said:
part number 16111744369
diameter 58.8 x 4.2
its still available $6.15 from getbmwparts.com / msrp from BMW is only 7.28 so its not worth paying shipping ... call your local dealer

Genuine BMW 16-11-1-744-369 | Fuel Pump Tank Seal | FREE Shipping on Most Orders $499+ OEMG! | getBMWparts

Shop Genuine OEM BMW Fuel Pump Tank Seal - Part # 16-11-1-744-369 - & Enjoy FREE Shipping on Most Orders $499+ OEMG!!
www.getbmwparts.com www.getbmwparts.com
Click to expand...
That's amazing. I wouldn't have guessed that the same dimensions would carry over through the generations to the present. But I guess if it's not broken, don't fix it.

Thanks
 
I have the O ring in hand now as the dealer got it in stock overnight and was only a short detour from our trip to Costco. Unfortunately, their MSRP wasn't the $7.28 reported by getbmwparts.com but was $13.24. Tax brought the total to $14.23, still the cheapest OEM BMW part I'll ever buy from a dealer.
Hopefully this will reduce/prevent the gas smell in my trunk.
 
Hi. I need one of these as well. I want to be sure I am getting the right part, Is the seal you bought the one that seals up the fuel sending unit to the tank per this pic? Thanks so much!
 

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the seal with the part number i listed above is the oval ring that fits around the sender, which mounts onto the pump unit. the seal for the pump unit is different. i know i have one, but i don't find a part number on realoem for the coupe ... probably because its a lower pressure situation.

on the e12, it uses 16121116966 which is also used on the e24, e28 ... and they all use the similar pump unit.
 
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that is the suction seal on the CSi tank ... that is why i asked what kind of tank he has ... he asked about the seal on a CS, but said he had a CSi (so that is why i asked the question). this does NOT fit on a CS tank with the e28 type pump
 
Hi. Thanks Scott and Boonies. My car is now a CSI with a 3.5L M90B34. I dont know what kind of fuel tank Paul used. Looking at the drawing (thanks for sharing), I think its the drawing on the right and part number 8? And may as well get the part 6 washers as well. Do I have this right?
 
look at the tank and see if there are 2 devices or 1. the part number #8 or #3 (depending on year) is ONLY for a CSi tank. the correct way to put it is that it is now an "injected CS", as a true CSi is a 226xxxx car or a 434xxxx car. the typical way of adding a 3.5L to a CS is to keep the CS tank and use the newer style in-tank pump + sender as a single unit. that uses the gasket part number i have listed above.
 
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