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Transaxle Washers

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by kehyler, Nov 25, 2014.

  1. kehyler

    kehyler Member

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    Does anyone know the dimensions of the transaxle washers (PN 90430-18008)? I was thinking of buying some from mcmastercarr, but I'm not sure if they will work.

    Also, if anyone knows the dimensions of the washer used to seal the engine oil inside its pan, let me know!

    kehyler
     
  2. xliderider

    xliderider Senior Member

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    The dimensions of the transaxle drain/fill washers are 18mm ID x 24mm OD x 2mm thick.

    SCH-I535
     
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  3. Mike500

    Mike500 Senior Member

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    18mm ID x 24mm OD x 2mm thick.
     
  4. kehyler

    kehyler Member

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    Was the second set of dimensions an accidental repeat or the dimensions of the engine washer?

    kehyler
     
  5. kc410

    kc410 Active Member

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    Oil Pan Drain bolt washer - p/n: 90430-12031 - 12.5mm ID x 21mm OD x 2mm thick
    Transaxle Drain/Fill bolt washer - p/n: 90430-18008 - 18mm ID x 24mm OD x 2mm thick
     
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  6. Mike500

    Mike500 Senior Member

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    We just posted at the same time. His was accepted first. It happens from time to time.

    The Gen III Prii eliminated the little ceramic magnet in the drain plug that was supplied in the Gen II. It gathers a lot of iron and steel worn from the gears and floats around in the fluid.

    When you changed the transaxle fluid, did you find a magnetic drain plug? I didn't. | PriusChat

    I made a special custom neodymium "rare earth" drain plug and easy to use hex head drain plugs, when I drained and refilled my transaxle at 13k miles.

    My transaxle fluid change and NEW custom drain and fill plugs... | Page 2 | PriusChat

    I'm glad I did, because NOW, I know that those particles are caught and not floating in the fluid and causing more wear on the transaxle components.
     
  7. Mendel Leisk

    Mendel Leisk Senior Member

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    The last time I changed transaxle fluid I bought a couple of washers at my local Toyota dealership parts department, for $1.99 each, along with the fluid. Just tell them what you want, no need to quote part number or dimensions.
     
    #7 Mendel Leisk, Nov 26, 2014
    Last edited: Nov 26, 2014
  8. Mike500

    Mike500 Senior Member

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    If you bought the Assenmacher TOY640 oil filter cartridge wrench, the 24mm or 15/16 inch hex on the drain plugs that I made are familiar to you, since the Assenmacher wrench uses the same hex socket.
     
  9. kehyler

    kehyler Member

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    Mike, have you changed your fluid since adding the magnet? I'm curios to see the actual amount of particles that are trapped.
     
  10. Mike500

    Mike500 Senior Member

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    I took the plug out after just 200 miles. There was already pieces of iron/steel dust on the magnet.

    I lost about 3 ounces of fluid changing plugs, but luckily, I had enough left over from the four quarts to replace it.
     
  11. kehyler

    kehyler Member

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    Thanks all, this has been helpful.