New NO LEAK rear main seal

[mysteryman]

Well its been decades now and still most of the trucks have rear main seal leaks. I know that there have been 13 revisions made on that seal and they still leak... Well I have had enough !! I just took delivery of 100 rear main seals that I spec'ed out. I know they will not leak. I guess we will just have to see how long.

The major problem with the orginal seal is that there must be crank case pressure to keep the lip tight against the crank. If you run the engine very lightly they just don't seem to seal that well. The seal I have now is nothing that special . It is just a single lip nitril seal with a spring to keep it tight.

What is special is the weird metric size that no one wants to make.

What is even better is that this seal cost me far far less than the one from Cummins. ! If anybody wants one pm me or call me for details. Otherwise I am going to keep a few for myself and sell the rest of them to a fleet owner in South Africa. . Or I may ask Genos if he wants to sell some.

 

[pwerwagn]

Awesome!!! Pm me how much?

 

[Rick Comenzo]

Rear Main seal

I have an interest as well, p/m me or post more info here... ... ... Thanks..... Rick.

 

[TWorline]

Rear Main Seal

Mysteryman I am interested as well and will take 5, please PM me the details.

 

[Greenleaf]

That's great!



I wish you luck in the sales. However, I once offered to *help* a fellow TDR member out with a leaking injection pump, out of good will, on this open forum. I was reported, and then flamed for it by the administration.



You are advertising a product to sell for profit?



How does that work... ... ... ... ... ... ? You are giving them away?

 

[pwerwagn]

I never saw where he said for profit?

 

[Greenleaf]

right. That was my question.



see above

 

[RedRamAndy]

I put in a Cummins seal in my engine 4 years ago and now I can park on the concrete without losing a drop. It sealed for me very well. The devil may be in the details. I read the instructions and they adamantly advised that the crank seal surface be dry and free of all oil. I went around that crank surface with a cotton swab soaked in brake cleaner many times until I was sure it was clean.

A cheaper alternate though, can be a good thing.

 

[HPetrat]

Odd, I just change out my original seal in my 98 12V (it wasn't leaking) as a pre-caution during a new clutch and transmission install, and the new seal is a dual-lip type seal somewhat different than the original.



Purchased it through local automotive supplier and I will check have to what brand it was.



By the way, original seal 411,480 kms (255,689 miles) on it at the time of change.



HP

 

[RedRamAndy]

The seal I used was a Cummins seal. It had one grey flap that made up the sealing edge. I was not used to seeing anything like this.

 

[JLEONARD]

I read the instructions and they adamantly advised that the crank seal surface be dry and free of all oil

Yes this has been stressed many times in boatdiesel as well.

 

[DVolk]

Well when and were can we get a price of these or a seal number so we can score one at a seal /bearing house