Recent Topics
Valvoline NG oil in a Diesel
by Aerojoe - 06/04/20 05:35 AM
bathroom toilet leaking help
by FirstNissan - 06/04/20 02:52 AM
Scored some NOS old dogs
by GMguy84 - 06/04/20 01:56 AM
Chevy Positraction 1057721
by rorty - 06/04/20 12:42 AM
Moving up to 5w30. How thick is too thick?
by BTLew81 - 06/03/20 11:15 PM
Renting UHaul Truck to Tow Your Own Trailer?
by Miller88 - 06/03/20 09:40 PM
First Oil Change Recommendation
by gtpimp - 06/03/20 09:20 PM
GM 10L80 Issues
by shimps1 - 06/03/20 08:26 PM
Brake/Carb cleaner issue.
by Jarpin - 06/03/20 07:27 PM
sharp oil pressure drop-off > 130C
by bbrtuning - 06/03/20 06:48 PM
Warranty work
by t1snwrbrdr12 - 06/03/20 06:10 PM
AC Flashing Light
by artbuc - 06/03/20 05:13 PM
Watches
by Passport1 - 06/03/20 03:57 PM
best budget tire
by VQLT - 06/03/20 03:33 PM
Castrol EDGE turns black/red FAST
by Silver - 06/03/20 03:20 PM
Our van feels "Darty" or twitchy" on the highway
by 1911CHAMPION - 06/03/20 02:55 PM
You guys who pile the miles up weekly on your ride
by Speak2Mountain - 06/03/20 02:22 PM
'19 + '20 Kicks w/C.V.T. : Any owners or know
by odie - 06/03/20 01:38 PM
Securing rubber hose to metal tubing?
by joshuawesl - 06/03/20 01:15 PM
Newest Members
Kernal, AB_Indian, rorty, Ghosty, zmann96
71604 Registered Users
Who's Online Now
41 registered members (BigGeo, Amkeer, CapriRacer, Aerojoe, 87sammy, 2 invisible), 980 guests, and 72 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics306,117
Posts5,287,831
Members71,604
Most Online4,538
Jan 20th, 2020
Donate to BITOG
Print Thread
Hop To
OEM & Aftermarket Parts From The Same Supplier #5420203 05/03/20 07:02 PM
Joined: Aug 2004
Posts: 21,868
The Critic Offline OP
OP Offline
Joined: Aug 2004
Posts: 21,868
https://www.repairerdrivennews.com/...ts-from-same-manufacturer-not-identical/

I have read many comments on this site (and other sites) about vendors supplying identical parts to OE customers and to the aftermarket. This is not always true in my experience and this article somewhat validates my experience. For example, I used to order Akebono ProACT pads for Honda's and would find them to be sized smaller and perform differently than the Akebono pads that I purchase from the Honda dealer. Both products ultimately offer similar performance but the attributes are not identical. This article goes into more detail about the finer nuances between building a product for the aftermarket vs for an OEM and I have included some quotes below:

Quote
Asked if Denso ever sold aftermarket parts that exceeded manufactuer specifications, Williams called it “extremely, extremely rare.”


Quote
Denso would analyze the shape, form, fit and function of a part and wonder how to “‘back that off'” to meet a wider market, Williams said.

Williams gave the hypothetical example of an OEM platform with a 41 mm condensor. Denso might decide to make a 40 mm aftermarket condensor able to fit vehicles with 39-42 mm condensors for a requirement like “’85 percent of OE cooling.'”


Quote
Mendoza summarized Williams’ message as that a distributor could take comfort in aftermarket parts made by an OEM supplier, for “they have the experience.” Their parts can have a higher quality than other aftermarket parts manufacturers, Mendoza said.

Denso produces OEM parts and an “excellent” aftermarket part, Mendoza said. Nevertheless, “there’s a very clear difference,” as the discussion July 25 demonstrated.

At the end of the day, the aftermarket part was “still an aftermarket part,” he said.

Mendoza said he didn’t see a situation where automakers would set a particular standard for aftermarket parts or help manufacturers create them. The only way to obtain Toyota safety specifications for sure was to buy a Toyota part, he said.


2011 Toyota Prius 1.8L - 207K - Valvoline Premium Blue Restore 10W-30
2007 Honda Accord 2.4L - 146K - Valvoline Premium Blue Restore 10W-30
Re: OEM & Aftermarket Parts From The Same Supplier [Re: The Critic] #5420264 05/03/20 08:24 PM
Joined: Nov 2006
Posts: 23,432
T
Trav Offline
Offline
T
Joined: Nov 2006
Posts: 23,432
Then again you can sometimes get parts from the OE supplier that have the OE brand name ground off. This is the actual OE part, this is more common with some manufacturers than others eg Lemforder does this quite a bit with Euro parts.
Others like BWD for example will just rebox the actual OE part without any unbranding if it is a low selling part.


ASE L1, Master. Deutsch Meisterbrief.
Re: OEM & Aftermarket Parts From The Same Supplier [Re: The Critic] #5420279 05/03/20 08:42 PM
Joined: Oct 2019
Posts: 126
B
buddylpal Offline
Offline
B
Joined: Oct 2019
Posts: 126
I’ve bought numerous BWD parts throughout the years that were the exact OEM part with the OEM part number stamped right on the part. Some house brand part store parts are also OEM. I recently bought Duralast brand evap purge valve for a 2015 Impala 3.6 and it was the exact same BOSCH part as the original I took off. Same part numbers and everything.

Denso seems to manufacture their parts rather than rebox OEM parts. I bought a coil pack for a GM 2.2 ecotec a few years ago and I purchased a Denso because they were the OEM supplier. Identically the old OEM part and the new Denso looked exactly the same but the new Denso didn’t have the OEM part number engraved on it so I do believe that Denso has different quality for the OEM vs the aftermarket.


A couple GM's and a Hyundai.
Re: OEM & Aftermarket Parts From The Same Supplier [Re: The Critic] #5420313 05/03/20 09:19 PM
Joined: Apr 2017
Posts: 3,644
H
hallstevenson Offline
Offline
H
Joined: Apr 2017
Posts: 3,644
A parts manufacturer can make OEM parts and also sell those under their own name (or private label them for others). In those cases, it makes no sense to make it slightly different or cheaper or whatever. The tooling, material, etc already exist. The example Trav gives where an aftermarket part looks 100% identical to the OEM part that was just removed except it has grinding marks on it (where the OEM p/n was).

Now that same manufacturer may 'copy' other parts that they don't make as OEM units and make them more universal. These are two different scenarios.

Re: OEM & Aftermarket Parts From The Same Supplier [Re: The Critic] #5420335 05/03/20 09:58 PM
Joined: Jul 2003
Posts: 5,539
S
Silk Online Content
Online Content
S
Joined: Jul 2003
Posts: 5,539
Then again you have aftermarket parts which have improved on the faults of the OE product.


1987 BMW R65 - Penrite VTwin 20-50
2005 Nissan Expert - 5W-30 Castrol Edge
1996 Volvo T5 - Penrite HPR15 - 15W-60. Ryco syntec filter.
Re: OEM & Aftermarket Parts From The Same Supplier [Re: The Critic] #5420435 05/04/20 01:46 AM
Joined: Feb 2013
Posts: 1,647
S
spk2000 Offline
Offline
S
Joined: Feb 2013
Posts: 1,647
Originally Posted by The Critic
https://www.repairerdrivennews.com/...ts-from-same-manufacturer-not-identical/

I have read many comments on this site (and other sites) about vendors supplying identical parts to OE customers and to the aftermarket. This is not always true in my experience and this article somewhat validates my experience. For example, I used to order Akebono ProACT pads for Honda's and would find them to be sized smaller and perform differently than the Akebono pads that I purchase from the Honda dealer. Both products ultimately offer similar performance but the attributes are not identical. This article goes into more detail about the finer nuances between building a product for the aftermarket vs for an OEM and I have included some quotes below:

Quote
Asked if Denso ever sold aftermarket parts that exceeded manufactuer specifications, Williams called it “extremely, extremely rare.”


Quote
Denso would analyze the shape, form, fit and function of a part and wonder how to “‘back that off'” to meet a wider market, Williams said.

Williams gave the hypothetical example of an OEM platform with a 41 mm condensor. Denso might decide to make a 40 mm aftermarket condensor able to fit vehicles with 39-42 mm condensors for a requirement like “’85 percent of OE cooling.'”


Quote
Mendoza summarized Williams’ message as that a distributor could take comfort in aftermarket parts made by an OEM supplier, for “they have the experience.” Their parts can have a higher quality than other aftermarket parts manufacturers, Mendoza said.

Denso produces OEM parts and an “excellent” aftermarket part, Mendoza said. Nevertheless, “there’s a very clear difference,” as the discussion July 25 demonstrated.

At the end of the day, the aftermarket part was “still an aftermarket part,” he said.

Mendoza said he didn’t see a situation where automakers would set a particular standard for aftermarket parts or help manufacturers create them. The only way to obtain Toyota safety specifications for sure was to buy a Toyota part, he said.




I used to work for Akebono and we made 3 different sets of brake pads. OE that went on brand new cars. OE were built to the highest quality standard. Service pads were made very similar sometimes exact and sold to dealerships but often were released by quality personnel as good enough for the dealer. Then there was a different part of the plant that made aftermarket. These were often sold to NAPA and had a completely different formula in material and components. 99% of the aftermarket pads used the same material and quality was rarely rejected for anything. OE pads were custom designed formulas made in small batches and finely tuned for sound and performance.


96 Grand Marquis 203,000 mi
01 Sable LS Wagon 163,000 mi
02 Montero 191,000 mi
03 Sable LS Sedan 73,000 mi
Re: OEM & Aftermarket Parts From The Same Supplier [Re: spk2000] #5423390 05/07/20 12:18 PM
Joined: Sep 2002
Posts: 4,643
G
Gebo Offline
Offline
G
Joined: Sep 2002
Posts: 4,643
Originally Posted by spk2000
Originally Posted by The Critic
https://www.repairerdrivennews.com/...ts-from-same-manufacturer-not-identical/

I have read many comments on this site (and other sites) about vendors supplying identical parts to OE customers and to the aftermarket. This is not always true in my experience and this article somewhat validates my experience. For example, I used to order Akebono ProACT pads for Honda's and would find them to be sized smaller and perform differently than the Akebono pads that I purchase from the Honda dealer. Both products ultimately offer similar performance but the attributes are not identical. This article goes into more detail about the finer nuances between building a product for the aftermarket vs for an OEM and I have included some quotes below:

Quote
Asked if Denso ever sold aftermarket parts that exceeded manufactuer specifications, Williams called it “extremely, extremely rare.”


Quote
Denso would analyze the shape, form, fit and function of a part and wonder how to “‘back that off'” to meet a wider market, Williams said.

Williams gave the hypothetical example of an OEM platform with a 41 mm condensor. Denso might decide to make a 40 mm aftermarket condensor able to fit vehicles with 39-42 mm condensors for a requirement like “’85 percent of OE cooling.'”


Quote
Mendoza summarized Williams’ message as that a distributor could take comfort in aftermarket parts made by an OEM supplier, for “they have the experience.” Their parts can have a higher quality than other aftermarket parts manufacturers, Mendoza said.

Denso produces OEM parts and an “excellent” aftermarket part, Mendoza said. Nevertheless, “there’s a very clear difference,” as the discussion July 25 demonstrated.

At the end of the day, the aftermarket part was “still an aftermarket part,” he said.

Mendoza said he didn’t see a situation where automakers would set a particular standard for aftermarket parts or help manufacturers create them. The only way to obtain Toyota safety specifications for sure was to buy a Toyota part, he said.




I used to work for Akebono and we made 3 different sets of brake pads. OE that went on brand new cars. OE were built to the highest quality standard. Service pads were made very similar sometimes exact and sold to dealerships but often were released by quality personnel as good enough for the dealer. Then there was a different part of the plant that made aftermarket. These were often sold to NAPA and had a completely different formula in material and components. 99% of the aftermarket pads used the same material and quality was rarely rejected for anything. OE pads were custom designed formulas made in small batches and finely tuned for sound and performance.


I agree. To remind us, Toyota dealers have 2 grades of Toyota brake pads. A cheap one and the OEM one. That says a lot.

This doesn't really apply to this post but it may prove to be interesting. A friend of mine is a Yokohama tire grader here in VA. All of the best tires go in containers back go Japan. We accept all the lower quality ones. The Japanese will not accept tires below a certain grading. Go figure...


'98 LEX LS400 310K
'02 4Runner 250K
'05 Lex LS430 90K
'07 Lex GX470 75K

Shell Gas and Truck 5w-30
Amsoil OE 10w-30
Toyota ATF's and Coolant
Amsoil Gear Oil and Grease
Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™