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Transmission drain plug gaskets - OEM or Auto parts store?

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Old 04-16-13, 06:29 PM
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Transmission drain plug gaskets - OEM or Auto parts store?

I'm replacing the transmission and differential fluid. Looks like I need 3 identical aluminum drain plug gaskets. Do I need to get these from Ray Crowe or can I try and find some locally. Does anybody know if they are M14 or something else? I hate to have to order something so small from Ray but if need be...
Old 04-16-13, 07:37 PM
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I can tell you that oil pan crush rings left over from my 1995 Mazda 929 fit perfectly on the tranny/diff drain plug gaskets. That part number is 9956-41-800. However, you should be able to get appropriate sized aluminum crush rings from your local parts store. If you need ID/OD, thickness and width measurements from my crush rings, just let me know.
Old 09-21-15, 12:34 PM
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I know this is old, but I have looked all over and could not locate the identical crush washer oil drain gaskets by themselves, unless you buy the M18 drain plug and even then you are paying like $3-4/per plug/washer.

I am going to buy a large supply hopefully and get GB started if there is enough interest.

Pricing will be in the $5shipped for 6 (enough to do 2-3 diff/Trans fluid change jobs)

Last edited by Max_Spd; 09-21-15 at 12:54 PM.
Old 09-23-15, 10:19 AM
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Originally Posted by Max_Spd
I know this is old, but I have looked all over and could not locate the identical crush washer oil drain gaskets by themselves, unless you buy the M18 drain plug and even then you are paying like $3-4/per plug/washer.

I am going to buy a large supply hopefully and get GB started if there is enough interest.

Pricing will be in the $5shipped for 6 (enough to do 2-3 diff/Trans fluid change jobs)

I was looking for these a bit ago, and also couldn't find any. Odd for a part that is considered consumable. I re-used mine, and it's holding oil fine, but would like some for next time around. I might just machine my own next time, but I'll sub to this post in case there is interest
Old 09-23-15, 10:49 AM
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Cool

Originally Posted by F1Eng
I was looking for these a bit ago, and also couldn't find any. Odd for a part that is considered consumable. I re-used mine, and it's holding oil fine, but would like some for next time around. I might just machine my own next time, but I'll sub to this post in case there is interest
I suggest you anneal the washer before you re-use it.
This will bring back the soft properties of the washer and it will seal as a new one.
Old 09-23-15, 11:36 AM
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Originally Posted by RedBaronII
I suggest you anneal the washer before you re-use it.
This will bring back the soft properties of the washer and it will seal as a new one.
Without knowing the grade of aluminum, I can't know if it can be annealed at all. But being that is aluminum, it's fairly soft even having been work hardened the first time. It sealed just fine, so there was some workability left.. this time anyway
Old 09-30-15, 10:57 AM
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Well folks I now have German made M18 aluminum crush washers in and ready for orders.

Price is $1/each with $1shipping minimum order of 5units.

PM me for info and or PayPal!

I used them on my last fill over the weekend, identical to stock $2.50-$3+ / each price tag.
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