Don't buy OEM parts!
#1
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Year: 2001
Model: Cherokee
Engine: 4.0
Don't buy OEM parts!
I believe Chrysler manufactures following parts:
body
engine
transmission
that is it!
Everything else is manufactured by some other companies, which also sell the same parts as aftermarket, they are not allowed to use Chrysler logo on exactly the same parts.
Correction:
most likely Chrysler doesn't manufacture engine and transmission internal parts.
body
engine
transmission
that is it!
Everything else is manufactured by some other companies, which also sell the same parts as aftermarket, they are not allowed to use Chrysler logo on exactly the same parts.
Correction:
most likely Chrysler doesn't manufacture engine and transmission internal parts.
#2
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Model: Cherokee
Engine: 4.0L HO
OEMs design, buy and assemble parts to make cars. The supplier of said parts are most likely the cheapert bidder, or on high tech parts, maybe they had a hand in dsigning the parts. Basic parts (filters, belts, bushings, lubricants, etc) can and are made by anyone. Mopar (aftermarket parts group for Chrysler...NOT necessarily what the factory installed) can and will change suppliers for aftermarket parts to supplier the dealer.
#3
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Year: 1993
Model: Cherokee
Engine: I6
npoe bought a transmission filter for a 92 and it said toyota on it. bolted right up. and i asked specially for a 92 jeep cherokee larado transmission filter and thats what o got
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Model: Cherokee
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Year: 90,84
Model: Cherokee
Engine: 4.0,2.5
Asian Warner Also when you put a 350 in a Jag, you just change the drive-line length, same U-joints!
Last edited by DFlintstone; 09-08-2012 at 11:08 PM.
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#8
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Year: '99 and '91
Model: Cherokee
Originally Posted by bloddy mud
really?! well learn something new every day. 4runners have aw4?
#9
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Year: 1995
Model: Grand Cherokee
Engine: 4.0 with all of the noise and clatter
Chevy, Ford, and all of the rest use outside vendors for parts to build their automobiles. The automakers can not make every part of the vehicles they sell, it's just not doable, there are thousands of little plastic pieces for just one model, they can't make them in house. There is one company that make seat trim and stuff like that, another company that makes door clips and linkage clips and so on. The automakers engineer and design the parts, but vendors make them. One vendor can make parts for Ford, Chevy, and Chrysler.
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Any part, no matter who manufactures it will deviate very slightly from spec. That's the nature of manufacturing. The difference between OEM and cheapie aftermarket...even if they rolled off the same assembly line...is in the sorting.
Chrysler may spec 01% tolerance. The better aftermarkets may spec the same as OEM.
The 02%, 05%, 10% parts also go somewhere. Guess where.
(hint: you get a 'lifetime warranty' so you can keep swapping them out until you get one that works with your engine)
This incidentally was my DW's job some years ago at a contract manufacturer...statistical process control. When the production runs deviated a certain percent from spec the primary purchaser rejected them and they were sold to secondary and tertiary purchasers. The exception was parts built for DoD, which were ground up and recyled if they were out of spec.
Last edited by Radi; 09-09-2012 at 12:17 AM.
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Year: 1996
Model: Cherokee
Engine: 4.0L HO
Actually its Aisin Warner you racist lol. Just because its Jap doesn't mean its crap. Tundras with the v8s and a 4 speed have the same tranny as our XJs, pretty much unchanged from the ones we have.
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Year: 1999
Model: Cherokee
Engine: 4.0
Yes...but.
Any part, no matter who manufactures it will deviate very slightly from spec. That's the nature of manufacturing. The difference between OEM and cheapie aftermarket...even if they rolled off the same assembly line...is in the sorting.
Chrysler may spec 01% tolerance. The better aftermarkets may spec the same as OEM.
The 02%, 05%, 10% parts also go somewhere. Guess where.
(hint: you get a 'lifetime warranty' so you can keep swapping them out until you get one that works with your engine)
This incidentally was my DW's job some years ago at a contract manufacturer...statistical process control. When the production runs deviated a certain percent from spec the primary purchaser rejected them and they were sold to secondary and tertiary purchasers. The exception was parts built for DoD, which were ground up and recyled if they were out of spec.
Any part, no matter who manufactures it will deviate very slightly from spec. That's the nature of manufacturing. The difference between OEM and cheapie aftermarket...even if they rolled off the same assembly line...is in the sorting.
Chrysler may spec 01% tolerance. The better aftermarkets may spec the same as OEM.
The 02%, 05%, 10% parts also go somewhere. Guess where.
(hint: you get a 'lifetime warranty' so you can keep swapping them out until you get one that works with your engine)
This incidentally was my DW's job some years ago at a contract manufacturer...statistical process control. When the production runs deviated a certain percent from spec the primary purchaser rejected them and they were sold to secondary and tertiary purchasers. The exception was parts built for DoD, which were ground up and recyled if they were out of spec.
I basically agree. However, if the component part carries a Chrysler part number and the run contains subspec parts, the entire bad run gets chit canned. Chrysler marked parts do not get redistributed to the aftermarket pukes. Chrysler has QA people on-site (periodically) at their tier one vendors to check the parts for conformity to its specs.
A man that used to work for me at Chrysler's flight department transferred to Chrysler's QA department. He said he was assigned to inspect brake parts at their tier one vendor and that on several occasions the run of certain brake parts failed to meet specs so the entire run of parts was destroyed - not peddled to the aftermarket. In therory, if the part carries a Chrysler part number, or the container inwhich it is packaged, carries that number it can be assumed that the part passed Chrysler QA. Of course we know that the Chrysler design specs were developed by their engineering staff and that there are mistakes made in the basic design, thus recalls.
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Model: Cherokee
Radi,
I basically agree. However, if the component part carries a Chrysler part number and the run contains subspec parts, the entire bad run gets chit canned. Chrysler marked parts do not get redistributed to the aftermarket pukes. Chrysler has QA people on-site (periodically) at their tier one vendors to check the parts for conformity to its specs.
.
I basically agree. However, if the component part carries a Chrysler part number and the run contains subspec parts, the entire bad run gets chit canned. Chrysler marked parts do not get redistributed to the aftermarket pukes. Chrysler has QA people on-site (periodically) at their tier one vendors to check the parts for conformity to its specs.
.
Many of these parts are not built start to finish by a single contractor. In the case of DW's job, they handled injection molding. As an example..they may have molded the impeller for a fuel pump, which was then shipped elsewhere for final assembly. The motors may have come from yet another place, the housings from a third...the wiring harness from a fourth...
The lesser-spec internals would never see an OEM pump assembly as they were not shipped to the OEM supplier for final assembly.
They may have been routed to Spectra. And the parts that didn't meet Spectra's spec to Airtex, lol. (completely made up example)
Or they may have been purchased by the OEM supplier for an aftermarket production run....for those who think an X-brand fuel pump on the aftermarket is exactly the same as the X-supplied OEM.... not always.
So yes...not only does the final product have to meet OEM spec, but each component it's built from does too. Those component parts that do not measure up likely go elsewhere. (but the final, branded assembly does not, as you pointed out)
What you get, quality-wise is often entirely related to price. When a fuel pump is built to hit a certain price point, it is assembled from parts that also hit a certain price point, and those are usually the tier-2 or tier-3 tolerance parts.
When people say "you're paying for the OEM Name", that's true. It's because the OEM wants to protect their name from a bad-quality parts rep. and specs the upper tier stuff. You pay accordingly.
Last edited by Radi; 09-09-2012 at 09:37 PM.
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Year: Several
Model: Cherokee
Engine: 4.0
And then there's the problem with the dealer - some dealers buy sub quality parts from AUTOCHINA then sell them to you. Not just Jeep Dealers, all of them.
If it has the factory LOGO stamped on the part - not the box, it doesn't mean Chrysler made it, but it passed inspection by them.
You can buy pre-printed boxes with the logo and part numbers - common practice and not illegal.
If it has the factory LOGO stamped on the part - not the box, it doesn't mean Chrysler made it, but it passed inspection by them.
You can buy pre-printed boxes with the logo and part numbers - common practice and not illegal.
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