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New type crush washers vs. Old?

Discussion in '3rd Gen. Tacomas (2016-2023)' started by myn75, Nov 13, 2021.

  1. Nov 13, 2021 at 9:29 AM
    #1
    myn75

    #1
    myn75 [OP] Well-Known Member

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    Just about to do my rear diff so i headed to the dealer to secure some crush washers (as well as for eng oil drain plug) and at the dealer they handed me these new washers i hadint seen before. for the differential they were an aluminum/soft metal instead of the rolled steel and the guy said while it would be ok for the rear diff since its steel the T case could crack if a steel one is used for the plugs. The engine oil drain plug was new as well and he said that they just dont use the blue ones anymore. Does anyone know or can confirm?20211112_105715.jpg
    Left: new washer type, Right: Old washer type for differentials and T case.
    20211112_105749.jpg
    Left: new crush washer vs. Right: old washer for oil drain plug.
     
    myn75, Nov 13, 2021
    #1
  2. Nov 13, 2021 at 9:31 AM
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    LiquidArrogance

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    LiquidArrogance Well-Known Member

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    Did they come in a Toyota parts bag and if so what were the part numbers?
     
    LiquidArrogance, Nov 13, 2021
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  3. Nov 13, 2021 at 9:34 AM
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    myn75

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    myn75 [OP] Well-Known Member

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    no they dont usually hand it to me in a parts bag, they grab it off thier parts bins in the service center.
     
    myn75, Nov 13, 2021
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  4. Nov 13, 2021 at 9:44 AM
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    Volt

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    Volt Well-Known Member

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    My question is which way do you orient these crush washers? Do you place the flat part towards or away from the surface you are bolting it to?
     
    Volt, Nov 13, 2021
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  5. Nov 13, 2021 at 9:46 AM
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    myn75

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    myn75 [OP] Well-Known Member

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    when i took the diff plug off the flat part was facing the case/axle. for oil drain i believe there is no orientation
     
    myn75, Nov 13, 2021
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  6. Nov 13, 2021 at 9:53 AM
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    mattleg

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    mattleg Well-Known Member

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    From the factory the flat smooth side goes on the housing, the crush ring side on the bolt lip. I always remember that by presuming the crush ring may gouge an aluminum housing as it compresses.
     
    mattleg, Nov 13, 2021
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  7. Nov 13, 2021 at 9:53 AM
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    splitbolt

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    splitbolt Voodoo Witch Doctor

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    splitbolt, Nov 13, 2021
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    Skydvrr likes this.
  8. Nov 13, 2021 at 11:17 AM
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    Jeff Lange

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    Jeff Lange Well-Known Member

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    The aluminum gaskets (90430-18008, 90430-T0021, or 90430-A0003) are for the transfer case fill/drain. The steel crush gaskets (
    $14 12157-10010 Toyota Oil Drain Plug Crushable Steel Gaskets Set of 10 OEM 12157-10010
    12157-10010) are for the rear diff fill/drain and front diff fill.
    $11 90430-12031 Genuine Toyota - Oil Drain Plug Gaskets (QTY10)
    90430-12031 is the correct oil drain plug gasket (right side in your photo) which is aluminum with fibre coatings. The full fibre gasket you got (90430-12028) is used in other applications.

    The front diff drain gasket is
    $3 90430-24003 Front Differential Drain Plug Gasket
    90430-24003.

    Dealers often just grab gaskets that are the right size. The steel ones were never listed/used for the Tacoma t-case.

    The crush washer orientation doesn’t seem to matter to sealing capability, but typically the flat side sits towards the housing to keep things smooth and nice.

    Jeff
     
    Jeff Lange, Nov 13, 2021
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    boulderz, NorrinRadd, Tacomod and 10 others like this.
  9. Nov 13, 2021 at 11:33 AM
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    LiquidArrogance

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    LiquidArrogance Well-Known Member

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    this-guy-knows-his-shit.jpg
     
    LiquidArrogance, Nov 13, 2021
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    Tacomod, Skydvrr, tacoshell88 and 1 other person like this.
  10. Nov 13, 2021 at 10:10 PM
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    myn75

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    myn75 [OP] Well-Known Member

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    the answer im looking for! thanks!
     
    myn75, Nov 13, 2021
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  11. Nov 13, 2021 at 10:46 PM
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    Skydvrr

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    Skydvrr IG: @kalopsianick

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    Always invaluable here. Thanks for what you do.
     
    Skydvrr, Nov 13, 2021
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    splitbolt likes this.
  12. Nov 13, 2021 at 11:36 PM
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    baldbeardedtaco

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    baldbeardedtaco Well-Known Member

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    About the only time you can take what a guy on a forum says on the internet to be true and not even question it in the slightest
     
    baldbeardedtaco, Nov 13, 2021
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  13. Nov 14, 2021 at 9:12 AM
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    rsimi72

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    rsimi72 Well-Known Member

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    Just changed the oil in both of my Tacomas (2020 & 2006) and the dealer sold me the blue gasket for the oil drain plugs.
     
    rsimi72, Nov 14, 2021
    #13

Products Discussed in

Genuine Toyota 90430-24003 Front Differential Drain Plug Gasket
$2.80
Toyota Oil Drain Plug Crushable Steel Gaskets Set of 10 OEM 12157-10010
$13.99
Genuine Toyota - Oil Drain Plug Gaskets (QTY10)
$10.25
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