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The '04 & up case doesn't have the boss to block the cooler return (Which was left over from '90-'96 models)
The boss in the case was eliminated in 2004. My case is a 2005.
If I’m using a 97-03 pump cover I will plug the cooler return hole on the pump cover seen in the picture, #49.
On rock auto I see that 2003 and 2004 both have the same part number for the pump cover 24243751 {#24232405}. Also looking at some pictures of other 97-03 vs 04+ covers I noticed they are different, yet both have 24203512 stamped on them.
Bottom line is check the parts, don’t rely on part numbers being the same to mean that the parts are the same. I’m not just going to stick a 03 pump cover in an 04 case (without modifying it) just because the part numbers are the same when I see that the parts look different.
You can run an 04 & up pump cover in a 97-03 case without issue.
You can run a 97-03 pump cover in an 04 & up case IF you plug the cooler return hole.
If you give a calculator to an idiot he’s going to try an turn on a TV with it. Don’t do that. I almost did but then I realized I should actually look at the parts and not rely on stampings or part numbers being the same on some website....
Look at the number of holes in the 6 o'clock position in the pictures below. Then look at the part number stamped on it.
When we (GM) were originally selling the rear pump half over the parts counter (Dealerships and parts wholesale houses)...
It came with a cup-plug and instructions as to which models required use of the cup-plug.
We (GM) issued a Late-2003 update bulletin about the parts change over.
There were also ATRA or ATSG bulletins about this change.
When we (GM) were originally selling the rear pump half over the parts counter (Dealerships and parts wholesale houses)...
It came with a cup-plug and instructions as to which models required use of the cup-plug.
We (GM) issued a Late-2003 update bulletin about the parts change over.
There were also ATRA or ATSG bulletins about this change.
I figured if buying from GM dealer direct that the change would be noted somewhere, it's just that if someone tries to buy from rock auto or a non GM site, I'm thinking something like this could be missed. I'm surprised the part numbers are the same.
I figured if buying from GM dealer direct that the change would be noted somewhere, it's just that if someone tries to buy from rock auto or a non GM site, I'm thinking something like this could be missed. I'm surprised the part numbers are the same.
I forgot to reply to this sorry.
Gm part numbers are constantly being changed...
Almost every time that a part receives a revision/ change or update; the part number is changed.
If you purchased a fuel level sensor in 2018 with the part number being #24248000 for a customers 2015 Corvette...
Then purchased the same part in 2020 for another customers 2015 Corvette, and saw that the part number changed to #24248050...
This tells the parts salesmen at the GM dealer that the part has been updated and should be an indicator to you as well that something has changed.
This practice was started so help signify that a part has been altered/ revised since it was originally created (this is a good thing).
Unfortunately when these part numbers get changed and receive their superseding number... the old part number gets deleted from the database.
If one of these fuel level sensors has been sitting around since 2015... it will be sold to you with the superseded part number (since the previous part number has been deleted)
So how do you know if the part you purchased is an old design or a updated design... You don't unless you physically inspect/ compare the parts (Not a good thing).
Gm part numbers are constantly being changed...
Almost every time that a part receives a revision/ change or update; the part number is changed.
If you purchased a fuel level sensor in 2018 with the part number being #24248000 for a customers 2015 Corvette...
Then purchased the same part in 2020 for another customers 2015 Corvette, and saw that the part number changed to #24248050...
This tells the parts salesmen at the GM dealer that the part has been updated and should be an indicator to you as well that something has changed.
This practice was started so help signify that a part has been altered/ revised since it was originally created (this is a good thing).
Unfortunately when these part numbers get changed and receive their superseding number... the old part number gets deleted from the database.
If one of these fuel level sensors has been sitting around since 2015... it will be sold to you with the superseded part number (since the previous part number has been deleted)
So how do you know if the part you purchased is an old design or a updated design... You don't unless you physically inspect/ compare the parts (Not a good thing).
THANK YOU, vorteciroc, for explaining this aggravating aspect of buying parts from the dealer.
I can't tell you how many times I've called the dealer parts desk, only to have this conversation:
Me: "Hello, I need part #______."
Parts guy: "That's not a good number."
Me: "What do you mean? I'm reading it right off of the part."
Parts guy: "Yeah, but it's not a good number. What's the application?"
Me: "It's a (insert GM car)."
Parts guy: "Okay, what are the last eight of the VIN?"
Me: "I don't have that, I only have the part."
At this point, I get one of four options:
1) He/ she cross-references the number and finds the part I need
2) They roll some dice/ flip a coin/ throw some chicken guts on the ground, make a decision, and send me the wrong part
3) I'm sternly told to call back with either the correct part number, or the VIN, and to stop wasting their time, because they're very busy.
4) I hear hysterical laughter, and then a dial tone
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97-03 vs 04 & up pump cover difference 
