It looks like the O-rings on a wide range of M type fuel injection Pumps on various engines are the same size. See pic for the engines.
606 O-ring size
http://www.peachparts.com/shopforum/diesel-discussion/398078-om606-delivery-valve-o-ring-size.html
My 1995 E300D used MB # 0179974148. It is 15mm ID X 19mm OD thickness from the pic in the thread is about 2.5mm.I used buna rings when I replaced mine, they have been fine for 8 years / 75K mile
https://injectionpumps.co.uk/product/mercedes-delivery-valve-o-rings/
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84 300D, 82 Volvo 244Gl Diesel
Last edited by Diesel911; 07-04-2021 at 04:57 PM.
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