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O-ring part #’s in timing cover

1598 Views 4 Replies 3 Participants Last post by  bnbsnive
I have an 08 cabrio (451) with the cylinder head getting reconditioned. While waiting to get the head back I’m cleaning things up for reassembly and getting all my new parts in order. I have most everything but am having a hard time identifying part numbers for the o-rings in the timing cover. Wondering if anyone has the numbers for what I have marked on the attached photo (I realize that #4 actually goes on the coolant tube that slides into the timing cover). Many thanks to all that can assist!
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Welcome to the forum. Check out this MB/smart car part store.

Welcome to the forum. Check out this MB/smart car part store.

Thank you!

Checked out the website and unfortunately the only parts listed are the timing cover itself and I obviously don't want to buy a timing cover in order to get some new o-rings. Good suggestion tho, I appreciate it!
At any rate, I have the part number for the crank seal and I think I have the proper number for the coolant connection (#4). I also have a part number for what is referred to as the Crankcase O-Ring but am unsure if this is #1 or #2 (I haven't measured them but I believe that #'s 2 & 3 are the same size). Might just order one of the part numbers that is referred to as the Crankcase O-Ring and see what I get.
If anyone else can chime in I'd certainly appreciate it. If I figure out anything, I'll post it here. Thanks again!
…if you have the O ring in hand take it to auto parts store and they can matched for you given the thickness and diameter…
…knowing that I can give you AN/MS but the parts store is quicker

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Ok, I have part number updates for anyone that may need this for a future project. Couldn’t find a Smart part number for #1 but an O-ring with dimensions 1 1/2” ID x 1 11/16” OD x 3/32” wall is about as close as you can get, BrassCraft #SC0606. #’s 2 & 3 are the same, Smart # A0219970645. The coolant hose connection, #4 is Smart #A0199972945. Not marked on the photo but may be helpful is the cranks shaft seal, Smart #A1320320080.

In addition, if you’re OC like me and want to replace now while you’re in deep, here are a couple other part numbers for the project, sorry if this is a duplicate from the part number sticky. The seals between the spark plug cylinders to the valve cover are Smart #A1320150080, you’ll need three of course. The alternator/water pump belt is Gates #K040315 and the A/C belt is K040289SF. Most of the other parts were fairly easy to identify. Good luck to everyone that’s diving into this work!
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