Washer size for oil drain bolt (Page 2/2)
theogre MAY 06, 07:45 PM

quote
Originally posted by css9450:
Every GM car I've ever had came with one of these. They had no washer.

EDIT: Do people actually replace that seal? Seems one would need a pick or something to get the old one out.

I've never had one leak.

CLICK FOR FULL SIZE

That seal is "permanent" & when bad must replace the whole plug.
This plug will limit the pressure/torque on the seal but can still strip out the hole when abused like above example.

I've change oil on Hundreds of 1960 to 90's vehicles before switching to IT world & Never seen that plug on any GM Vehicles. After switching to Metric nearly all GM product w/ stamped pans came w/ the above plug w/ replaceable seal. Most Ford Chrysler & many others had about same setup w/ separate plug & gasket of various sizes. I still change oil on newer cars I own & they often too have same setup.

Even if not OE... Have right threads & pan is good then that & more will work.

090-034CD plug "kit" fits Thousands models of GM Ford & imports from 1979 to current but on www.dormanproducts.com/p-101355-090-034cd.aspx "Detailed Applications" section only go back to 2014. You have to use Y/M/M option to see Fiero listed for that & other numbers. (the 092-018 Twist Drain Solution maybe work but seem to be a big target for road trash to hit.

⚠️ Warning: Depending of Year... Fiero V6 may Not use the metric oil plug but SAE 1/2"x20 oil plug or Rockauto has bad data listed, again. 88 Fiero V6 list Both in same list & SAE & Metric threads won't play w/ each other. RA does Not show a plug w/ permanent seal in the Fiero lists.
The seals often won't care if plug is metric or SAE.

Note: Dorman Parts often has Several Part Numbers as extra numbers may affect number of part(s) in a pack (like 1 2 10 25 washers/seals above) &/or type of pack. (Help! pack, Box, etc.)

[This message has been edited by theogre (edited 05-10-2024).]

theogre MAY 06, 08:17 PM

quote
Originally posted by Raydar:
Oh my...

I was "family friendly..." I & many others suffer when others F'ed around like my OE plug & way worse.
Most Oil changes are not "rocket science" but there are Thousands of way to make a nightmare job of it.
Also Doesn't help when some nube gets very cheap tools & breaks parts or hurts themselves or others & then someone else has to fix the mess after.

My plug above is easy output for nubes or "Jiffy Lube" type store but even many "Car Shops" do same crap to cut time etc. Don't believe many shops claiming all are ASE train. More so when have cars older ~ 20 years. Even worse for many shops use Flat Rate "books" to set a price for any job.
fierobear MAY 09, 03:01 PM

quote
Originally posted by theogre:

097-118CD is just 5 pc of the gasket in 090-034CD plug "kit."

if you go by model years it shows rubber over metal seal like https://www.dormanproducts.com/p-26830-65274.aspx (also in 10 or 25 packs)
that likely will work But not on many damage pans. I've tried that & other metal types & all leaked.

Even that should be replace every oil change because rubber seal often tears.

Also list rubber seals that must be replace every time.

Nylon seals iffy drains many times but strong enough not to fail between changes or fail when you install the plug.

Often Ignore what it fits as Dorman often doesn't know what parts fit.
To the point part site often say fit X model of whatever Year are wrong too.



The 090-034CD seemed to fit correctly, and so far no leaks. Will test the car in run next. Otherwise, I'll stock up on the rubber washers, and change them with every oil change.

Thanks, folks!