Booster replacement in progress: correct nut part numbers

Dec 10, 2007
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What I'm seeing is 90179-08038 for the brake booster to firewall nuts (inside cabin above brake pedal, 4 nuts with attached thick lock washer)
and 90179-08204 for the master cylinder to booster nut (4 needed; also a nut with attached washer but of a different design (slightly smaller/thinner).

One reference however shows the 90179-08204 (MC to Booster nut) may have been superceded by 90080-18070??

Booster is out (doing the work in a hotel parking lot) waiting for the nuts; reason I posted this is because my first try to order the correct nuts from
a local dealer ended in failure.

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