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oem seals vs aftermarket #2691218
08/25/19 12:34 PM
08/25/19 12:34 PM
Joined: Nov 2013
Posts: 279
Southern Alberta
Uberpube Offline OP
enthusiast
Uberpube  Offline OP
enthusiast

Joined: Nov 2013
Posts: 279
Southern Alberta
All our local suppliers are selling the same make of seals these days. I have not been having a great experience with this name aftermarket brand seal in a wide variety of applications.
On my 3500, I was having continual axle seal failure on the 11.5 aam rear end. I always buy more than one seal to have spares on the shelf. Having spares of brand x led to
having to continually change the axles seals every 3-4 months before I went back to buying oem seals for the rear end. There is no visual failure to the aftermarket seals, they just
start leaking. I compared the aftermarket seal to the OEM and noticed that the oem has a thin brown greese on the seal lip to seal sleave. I tried pre-lubing the aftermarket seal to mimic
the oem seal, same result as before, short seal life. I am thinking that thin lube on the oem seals is some sore of engineered seal conditioner and lubricant to keep the seal alive long term.
I have had oem seals on the rear end for over a year now, no leaks.
Replaced the rear housing extension housing seal on the srt-10 with brand x replacement about 5 months ago, doing it again today.
I have a gearbox I serviced for a customer, used brand x seals in that, can't keep seals in it, leaks after 4-5 weeks.
I think aftermarket can make a seal that for the most part is dimensionally correct, but the secret is in the seal material to lubricant interaction.
When I was at the dealer to get rear diff oil for the Viper, they were short of the gear oil for it. The parts guy asked one of the techs about using an equivalent oil in it, he said not to unless
I wanted to look forward to rear end leaks. He said mopar spec oils have specific blends for seal compatibility.
The weirdness is the oem seals so far been cheaper than the aftermarket, the only problem is I have to wait for them to be shipped to the dealer.

IMG_20190825_0915326.jpg
Re: oem seals vs aftermarket [Re: Uberpube] #2691231
08/25/19 01:50 PM
08/25/19 01:50 PM
Joined: Jan 2003
Posts: 9,158
Omaha Ne
T
TJP Offline
master
TJP  Offline
master
T

Joined: Jan 2003
Posts: 9,158
Omaha Ne
Welcome to the world of our current aftermarket parts suppliers. They get the parts cheaper, sell them at a substantial mark up and it allows the CEO's and other management to draw exorbitant salaries while driving us nuts.
I can name a multitude of examples, but just from last week,
Three radiator drain petcocks from different sources that all did the same thing. The "wing" portion used to loosen or tighten the drain portion just spins. The last one was from Napa and appeared identical in every way except price which was twice as much @ ~ $12.00. I finally dug through my used parts bin and found a good used one.

Thermostat housing gaskets made from a black material. We have had several of these that very slowly dribble a very small drop or so every hour when under pressure. Swap in a felpro gasket and every time the leak goes away. I also found it interesting that the suppliers had plenty of the 'cheaper' black gaskets, but each only had 1 of the felpro's available. I will also mention this was not an odd ball application being a mid 70's small block chevy

Total time lost on above two issues probably exceeds 10 hours.

I proceeded to order 10 Felpro gaskets and made in the USA petcocks online. And yes with shipping they were cheaper than buying local. The key point for me is the products worked the 1st time.
I do not pay much attention when corporate america whines that online sales are killing their business. Their management or lack thereof and their salaries are at the root of the problem

twocents beer

Re: oem seals vs aftermarket [Re: TJP] #2691524
08/26/19 11:27 AM
08/26/19 11:27 AM
Joined: Sep 2003
Posts: 11,692
north of coder
moparx Offline
Dreaming of implants
moparx  Offline
Dreaming of implants

Joined: Sep 2003
Posts: 11,692
north of coder
the song "money" comes to mind.
i don't know the band's name.........
beer

Re: oem seals vs aftermarket [Re: moparx] #2691556
08/26/19 12:31 PM
08/26/19 12:31 PM
Joined: May 2012
Posts: 1,082
South Bend
John Brown Offline
super stock
John Brown  Offline
super stock

Joined: May 2012
Posts: 1,082
South Bend
Originally Posted by moparx
the song "money" comes to mind.
i don't know the band's name.........
beer


Flying Lizzards ?




July 19th should be "Drive Like Rockford Day". R.I.P. Jimmie.
Re: oem seals vs aftermarket [Re: moparx] #2691565
08/26/19 01:07 PM
08/26/19 01:07 PM
Joined: Jan 2003
Posts: 2,054
Oklahoma City
Jwilli500 Offline
top fuel
Jwilli500  Offline
top fuel

Joined: Jan 2003
Posts: 2,054
Oklahoma City
Pink Floyd

Re: oem seals vs aftermarket [Re: Jwilli500] #2691597
08/26/19 03:05 PM
08/26/19 03:05 PM
Joined: Jan 2010
Posts: 1,136
NW Chicago suburban area
Mopar Mitch Offline
super stock
Mopar Mitch  Offline
super stock

Joined: Jan 2010
Posts: 1,136
NW Chicago suburban area
Don't forget the O'Jays... released ~1973

You pay for what you get with parts. Commodity items? Global sourcing has / is taking over. Corporate profits come first!

You pay for what you get.


Mopar Mitch "Road racers and autocrossers go in deeper and come out harder!"... and rain never stops us from having fun with our cars... in fact, it makes us better drivers! Check out MOPAR ACTION MAGAZINE, August 2006 issue for feature article and specs on my autocross T/A!
Re: oem seals vs aftermarket [Re: Jwilli500] #2691937
08/27/19 01:25 PM
08/27/19 01:25 PM
Joined: Sep 2003
Posts: 11,692
north of coder
moparx Offline
Dreaming of implants
moparx  Offline
Dreaming of implants

Joined: Sep 2003
Posts: 11,692
north of coder
Originally Posted by Jwilli500
Pink Floyd


i believe it was this version, with the lyrics "don't give me your voodoo bull****" that our local station always "leaves out".
beer

Re: oem seals vs aftermarket [Re: moparx] #2691961
08/27/19 02:16 PM
08/27/19 02:16 PM
Joined: Jan 2003
Posts: 2,054
Oklahoma City
Jwilli500 Offline
top fuel
Jwilli500  Offline
top fuel

Joined: Jan 2003
Posts: 2,054
Oklahoma City
Yup, same here local...
Originally Posted by moparx
Originally Posted by Jwilli500
Pink Floyd


i believe it was this version, with the lyrics "don't give me your voodoo bull****" that our local station always "leaves out".
beer

Re: oem seals vs aftermarket [Re: Jwilli500] #2692172
08/28/19 08:08 AM
08/28/19 08:08 AM
Joined: Jul 2003
Posts: 3,953
Holland MI Ottawa
2
2boltmain Offline
master
2boltmain  Offline
master
2

Joined: Jul 2003
Posts: 3,953
Holland MI Ottawa
Many times OEM parts are poo pooed because the price from our LOCAL dealers is insanely high. But I order OEM parts from online dealers and spend ALOT less than what my local dealer sells for. Obviously you wont get your seals same day but its worth setting up a free account at an online dealership whom has great prices.


Keep old mopars alive.
Re: oem seals vs aftermarket [Re: Uberpube] #2692572
08/29/19 11:08 AM
08/29/19 11:08 AM
Joined: Jan 2003
Posts: 7,003
Highland, MI.
Sunroofcuda Offline
master
Sunroofcuda  Offline
master

Joined: Jan 2003
Posts: 7,003
Highland, MI.
Uber, I would make a suggestion for you to visit a good truck parts supplier - like Greggs Fort Garry. There are some great quality seal companies building top-notch seals for the truck industry - the truck parts suppliers are much more critical about quality than typical auto parts stores. The two manufacturers that come to mind are CR & Stemco. I'm sure they have automotive seals as well as all the truck & trailer seals. A good parts house the like the above two will know who makes the best seals, & they probably carry them.


“Bear in mind that brains and learning, like muscle and physical skill, are articles of commerce. They are bought and sold. You can hire them by the year or by the hour. The only thing in the world not for sale is character.” (Antonin Scalia)

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