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Discussion Starter · #1 ·
Changing oil and cleaning up the drain plug and noticed it had a small rubber gasket in addition to the metal washer. Is that normal? Rubber in bad shape so wanted to check before I look for a replacement rubber gasket. Should I replace the metal washer each time as well? Should I be putting in an improved style plug ?
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Discussion Starter · #3 ·
Terry,

There is no rubber gasket called out in the factory Parts Catalog PC2139...but that metal washer looks a bit oversize to me.
View attachment 286403

Chuck
Terry,

There is no rubber gasket called out in the factory Parts Catalog PC2139...but that metal washer looks a bit oversize to me.
View attachment 286403

Chuck
I agree - I will get a new washer only - this plug may have been changed in the past and they put in one with the rubber washer.
 

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Just changed the oil in a 322 and noticed that the drain plug washer did not look right. When I looked up the 322 part it also called for CH15385. CH15385 is replaced by M806438. It is a metal washer with a rubber lip around the inside. $2.56 at greenpartstore.
 

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Just changed the oil in a 322 and noticed that the drain plug washer did not look right. When I looked up the 322 part it also called for CH15385. CH15385 is replaced by M806438. It is a metal washer with a rubber lip around the inside. $2.56 at greenpartstore.
I went to Deere store here and they said same think - the new washer has that rubber ring integral - bonded seal. So appears I had the right plug - the ring just came off over time.
 

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i like to use a viton usit ring but aluminum crush washer are fine too
used my OEM ring on my taco for 200k miles of oil changes at 5k int
 
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