As part of the kit of seals, gaskets and o-rings supplied by the dealer to re-install a "re-man" engine I have this o-ring, and can't figure where it goes...

Part number: 9954-10-3501
description: o-ring (about 3mm thick and 40mm OD)

I checked the Mazdatrix price list and the PDF parts catalog at Mazdaformance but I can find it

Any ideas? Thanks

 

Off the top of my head, the gasket kit comes with o-rings for the MOP and 2 for the oil filter.

 

3mm and 40mm is much larger than a OMP or oil pedestal o ring. Thinking back....it could be the lower intake to block o ring. If you look at your lower intake, there should be 1 or 2 where the O ring sits. That's the only thing that I can think of in that size.
Others are either too small or too large.

 

To be certain contact the dealer and they will be able to find out. I have some copy of dealer parts microfisch, but, I can't find that number.

 

Yeah, I found the one that fits the MOP and the 2 for the oil filter standoff....

But this one is quite big...

 

I didn't see anywhere on the S5 engine where a o-ring was used for the lower intake manifold, I didn't see it shown in the FSM either

 

CAS?

 

cas is 9954-10-3801
the oil pedistal is 9945-10-1601
the mop for 89+ is n350-14-604?
how about the oil level sensor o ring? n326-10-t11?

mike

 

^Mr. Parts MAnual

 

Well, finally found it....

9954-10-3501....o-ring for the crank angle sensor

 

for turbo's. without o-ring you'll leak coolant alot.

it's for the turbo coolant line.

 

3mm x 40mm seems small for a crank angle sensor O-ring. You sure?? Well, it will either fit or it won't I guess.

 

4cm dia, 3mm round... no it doesn't

 

Found it in the parts manual, page 4-N4...