NP 231 seal part #???

[J98cherokee]

Does anyone have the part number for a NP 231 t-case seal. Its the one inbetween the tranny and the t-case. Napa gave me one (19255) but it doesnt look right.

AW4 tranny

http://www.napaonline.com/masterpages/NOLMaster.aspx?PageId=430&CatId=8&SubCatId=12

 

[lawsoncl]

This might help. http://www.cyberjeep.com/products.asp?dept=5653 I looked up the 19255 which crosses to a CR-471869 which is the right size. Are you talking about the one on the front of the xfer case or the one in the back of the tranny? Or are you talking about the paper gasket which can be replaced with silicon.?

 

[J98cherokee]

where did you cross the numbers from napa to dealer parts? Im looking for number 29 on that website which saids front retainer seal. I dont think thats what I was given? I got the transmission one too because I might as well change them both .

 

[MT Mike]

If you don't trust what Napa gave you, double check them. www.napaonline.com will allow you to look parts up and perform cross references.

 

[lawsoncl]

where did you cross the numbers from napa to dealer parts? Im looking for number 29 on that website which saids front retainer seal. I dont think thats what I was given? I got the transmission one too because I might as well change them both .

You can go to http://www.napaonline.com/ and lookup a non-napa part number. Lookin up 4167929 points to 19255.

The 19255 is an SKF brand part number. I looked up the seal at partsamerica.com and came up with http://www.partsamerica.com/ProductDetail.aspx?mfrcode=SKF&mfrpartnumber=19255 which shows both the SKF number and CR brand part number of 471869 (not a dealer part number). I also checked rockauto.com which has a BCA part number as well as dimensions that matched what the NAPA site showed.

BCA Part # 710928
(Dual Lip); New Process 231J 2 Spd. Part Time Transfer Case {Oil Seal Acrylates Shaft Size=1.938 Housing Bore=2.68 Outer Diameter=2.685 Width=0.5}

I also went to http://www.chryslerpartsdirect.com/ and got this info
Partnumber 4167929 was superceded!
Old Partnumber: 4167929
New Partnumber: 5019020-AA
4167929 $7.04

Even stranger, if you plug the 5019020AA number into the NAPA website, it comes back with a 19293 different seal with the same ID and OD, but a little narrower.
From http://www.napaonline.com/MasterPag...93&Description=Transfer+Case+Input+Shaft+Seal
Attributes:
I.D.:1.9290"
O.D.:2.6940"
Type of Packaging:Boxed
Width:0.3940"

SEAL INPUT GEAR

So what are the dimensions on what you got, versus what you need?

 

[J98cherokee]

Well the thing is Im not sure what ID and OD I need. I thought it would be an easy seal to just pick up but when comparing it to the pics on this site, http://www.4x4trailhunters.com/article.php?id=20 ,it looks like this one has just one lip and a metal band on one side where mine has 2 lips one being in place of that metal band. http://www.napaonline.com/masterpag...55&Description=Transfer+Case+Input+Shaft+Seal

I figured I would just go to the dealer and get the seal but I dont know whether I need 4167929 or the 5019020-AA that superceded it.
Im guessing they would know what I would need but still... Its a bit odd..

 

[lawsoncl]

It's not unusual for a substitute to be a slightly different design. Often the replacement will have a double lip instead of a single lip for better sealing. I'm 95% sure you have the right seal based on the NAPA part number.