Or can I buy this shut off valve O ring at napa or advance auto?

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Muleears
'07 E320 Bluetec 133K my DD
'04 Jaguar XJ8 VDP, 34K
'10 Hyundai Accent 60K Grocery Getter
'02 VW Golf soon to be on the road again
'97 E300 Diesel Son's DD
'61 VERY tolerant wife

Hampton Roads, VA USA

Gone but not forgotten:
'67 250S 95K
'86 300SDL
'87 300D Turbo, 364K! R.I.P.
'98 E300 Turbodiesel, 213K
'02 S420, 164K
'01 Prius 138K

Mr. Mule, you'd have to ensure that the material is diesel fuel resistant. It would suck to have to take that apart again next week if it's leaking.

I think the guy selling the Viton o ring kits may have been able to source this o-ring, too. You could check with him.

It's available in viton in kits, let me look around here and see if I can put on a link too.

http://www.peachparts.com/shopforum/showthread.php?t=197822

hope this helps.

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raMBow

1999 E300DT Obsydian Black Metallic, Heated Full Leather Parchment options, E2, K2, 136,000+, best 36.5 mpg - GP's 12-04 & 11-12 Zero Stuck
2010 Honda Odyssey - The BrideMobile - best 26.5
(2) 2005 Honday Accord- (1 -Corporate 1 - Personal) - 110,000 4-cyl 30mpg
2000 VW Golf GLS TDI, Upsolute Chip (sold to Brother, now 300+k on it) 48.5 mpg like clock work
1987 Honda CRX HF - Sold 87,000 always over 50 mpg Max 67 mpg

That would be Jadavis {Jim}; great customer service kind of guy and his web page with the Viton rings are here --- he may be able to get something else if what you need is not on here:
http://www.fryerpower.com/store/page11.html

and he even had a "blatent plug" over here:
http://www.peachparts.com/shopforum/showthread.php?p=1724395#post1724395

Tell him "daw" sent you.....it may not be worth a discount, but at least he will know where you got the info.

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daw_two
Germantown, TN

Links:
Sold last car --- 05/2012 1984 300D Light Ivory, Red interior
Cluster Needles Paint
New Old Stock (NOS) parts

Past:
3/2008 1986 300SDL "Coda"
04/2010 1965 190D(c) "Ben"
& many more

SOV oring 2.5mm x 12mmID

http://www.peachparts.com/shopforum/showthread.php?t=177588

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Terry Allison
N. Calif. & Boca Chica, Panama

09' E320 Bluetec 77k (USA)
09' Hyundai Santa Fe Diesel 48k (S.A.)

That is a standard M012 o-ring size, it should be available at most auto parts stores. My assortment kit of metric o-rings came with 12 of them.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz

Is there some reason you are willing to scour the earth and risk buying the wrong O-ring instead of getting the known right part from MB?

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01 Ford Excursion Powerstroke
99 E300 Turbodiesel
91 Vette with 383 motor
05 Polaris Sportsman 800 EFI
06 Polaris Sportsman 500 EFI
03 SeaDoo GTX SC Red
03 SeaDoo GTX SC Yellow
04 Tailgator 21 ft Toy Hauler
11 Harley Davidson 883 SuperLow