2024 with 2.7 (L3B) stamped metal oil pan – drain plug seal/gasket

[Probity]

A question for all you ’24 (or maybe a ’25 with a lot of miles) 4-banger owners with the stamped metal oil pan who’ve done numerous (more than 2) oil/filter changes yourself:

 

The metal oil drain plug (p/n 11602884 – also fits 2020-2024 Cadillac CT5 with 3.0L V6) has a removable seal/gasket for effecting the metal oil pan seal. How many times (i.e. how many oil changes) do you reuse the seal/gasket before buying a new one?

 

Why am I asking such a silly question? Because I’ve unfortunately discovered that the drain plug seal/gasket doesn’t have a part number (it’s a NS – non-serviceable – item) and that you have to buy a new drain plug to get a new seal!

 

1^st time I changed my oil I discovered that it had a stamped metal oil pan (yay!) and that the drain plug had an elastomeric seal (not a crush washer). So I reused the seal, all was good. Before my next oil change, looked online, couldn’t find a p/n for the seal/gasket for the metal drain plug. Went to my local Chevy dealer parts dept. and told ‘em I wanted to buy a new oil drain plug seal/gasket. Parts guy dutifully looked up my VIN, sold me p/n 12667457.

 

Fast-forward to today – drained my oil again, went to swap out the drain plug gasket/seal, discovered dealer had sold me the wrong part (didn’t match at all). So drove back to the dealership in my grocery-getter car, showed the same parts guy no match, and he says “yeah I sold you the wrong part – 12667457 is for a ’23 2.7 (which must have the plastic pan/plastic drain plug)”. So I ask for the RIGHT seal/gasket. After a lot more looking he tells me “yeah the metal drain plug comes with a seal/gasket but the seal/gasket itself does not have a p/n, it’s an NS item, you have to buy a new drain plug to get the seal/gasket”. OK, what will that cost me? “Well, don’t hit me, but list price is $75.00.” What the hell?

 

Yeah you can find them cheaper online, but still - $47 for a friggin’ oil drain plug just to get a new seal/gasket? No thank you.

 2020-2024 GM Oil Pan Drain Plug 11602884 GM | GMPartsDirect.com 

 

So I’ve reused the old seal/gasket again. But eventually I’m gonna want a new seal.

 

So how many oil changes before you’d spring for an outrageously priced drain plug/seal???

[silveradosid]

if you don't over torque it and keep the mating surfaces clean, i think you should be able to use it a long time

[redwngr]

For years I did the oil changes on multiple vehicles.

@silveradosid is correct.

I don't think I ever replaced a sealing washer / crush washer, and never had a leak.  

I agree, $75 seems stupid.

I'd also say the best way to never need a plug/washer is to have a spare on hand.

 

 

Stamped oil pans is not a new thing.

[CamGTP]

I don't own a 2.7 but in my older 5.3 with a stamp steel lower pan, I've been using the same drain plug and gasket for the last 6 years, so about 12-13 oil changes already lol.

[newdude]

17 hours ago, Probity said:

A question for all you ’24 (or maybe a ’25 with a lot of miles) 4-banger owners with the stamped metal oil pan who’ve done numerous (more than 2) oil/filter changes yourself:

 

The metal oil drain plug (p/n 11602884 – also fits 2020-2024 Cadillac CT5 with 3.0L V6) has a removable seal/gasket for effecting the metal oil pan seal. How many times (i.e. how many oil changes) do you reuse the seal/gasket before buying a new one?

 

Why am I asking such a silly question? Because I’ve unfortunately discovered that the drain plug seal/gasket doesn’t have a part number (it’s a NS – non-serviceable – item) and that you have to buy a new drain plug to get a new seal!

 

1^st time I changed my oil I discovered that it had a stamped metal oil pan (yay!) and that the drain plug had an elastomeric seal (not a crush washer). So I reused the seal, all was good. Before my next oil change, looked online, couldn’t find a p/n for the seal/gasket for the metal drain plug. Went to my local Chevy dealer parts dept. and told ‘em I wanted to buy a new oil drain plug seal/gasket. Parts guy dutifully looked up my VIN, sold me p/n 12667457.

 

Fast-forward to today – drained my oil again, went to swap out the drain plug gasket/seal, discovered dealer had sold me the wrong part (didn’t match at all). So drove back to the dealership in my grocery-getter car, showed the same parts guy no match, and he says “yeah I sold you the wrong part – 12667457 is for a ’23 2.7 (which must have the plastic pan/plastic drain plug)”. So I ask for the RIGHT seal/gasket. After a lot more looking he tells me “yeah the metal drain plug comes with a seal/gasket but the seal/gasket itself does not have a p/n, it’s an NS item, you have to buy a new drain plug to get the seal/gasket”. OK, what will that cost me? “Well, don’t hit me, but list price is $75.00.” What the hell?

 

Yeah you can find them cheaper online, but still - $47 for a friggin’ oil drain plug just to get a new seal/gasket? No thank you.

 2020-2024 GM Oil Pan Drain Plug 11602884 GM | GMPartsDirect.com 

 

So I’ve reused the old seal/gasket again. But eventually I’m gonna want a new seal.

 

So how many oil changes before you’d spring for an outrageously priced drain plug/seal???

 

 

Reusable until it actually starts to leak.  I had the original drain plugs on my first two trucks (04 and 06 I bought used) and they never leaked.  

 

The factory seal GM uses on their drain plugs hold up quite a long time.  

Edited November 23, 2024 by newdude

[Probity]

Thanks for feedback. In the cosmic scheme of things this isn’t a huge issue but on the irritation scale it’s a solid 9 out of 10 for me. It does piss me off that you can’t buy replacement seals to fit p/n 11602884 oil pan drain plugs, you have buy the plug itself to get a new seal. For the 5.3 V8’s you can get stand-alone replacement seals, for the (older) 2.7 with plastic pans/plastic drain plugs you can get stand-alone replacement o-ring seals, but not for the 2.7 with aluminum oil pans.

 

I initially though the oil drain plug thread form/drain plug seal for my 2.7 would be the same as that for the 5.3 V8 (M12x1.75) but that’s evidently wrong. You can buy a new GM p/n 55577568 oil drain plug (fits 200+ GM products from ’24 Encores with the 1.2 engine to ’24 Silverados with the 5.3/6.2 down to a 2013 Sonic with the 1.8) for $10 or less that comes with a new seal. Or just buy a replacement drain plug seal (p/n 12616850) – fits over 600+ GM models from 2024 to 2003. Or numerous aftermarket easy drain valves with M12x1.75 male end (Fumoto, EZ Drain, Votex, Valvomax, etc). But you’re SOL if you have the metal pan 2.7, only GM choice is the $50+ drain plug.

 

P/N 11602884 drain plug fits 2024 Silverado/Sierra/Colorado/Canyon with the 2.7 engine, and the aluminum oil pan p/n 12732388 is the same also. I surfed a Colorado forum and found folks with the metal pan 2.7’s who had questions like mine. Someone measured the drain plug thread form and said it is M10x1.5, another member tried a M12x1.75 drain plug and said it definitely did not fit. I searched online a lot and didn’t find any aftermarket M10x1.5 elastomer drain plug seals for use on p/n 11602884, only aluminum crush washers. I found plenty of aftermarket M10x1.5 drain plugs with crush washers.

 

The easy drain oil valve folks don’t help. Fumoto says they don’t have a product for a ’24 2.7 Colorado but do have a product for a ’24 2.7 Silverado – problem is, it has M12x1.75 male end and won’t fit. Votex says you can use either a M10x1.5 magnetic drain plug w/crush washer (fits) or M12x1.75 quick drain plug (which won’t fit). Valvomax only has M12 plugs. EZ Drain in their applications charts doesn’t show any M10x1.5 options – however – they recently (this year) started selling a valve (EZ-126) with M10x1.5 male end.

 

A number of ’24 Colorado folks with the 2.7 opted to go with the EZ-126 and are happy so far. Uses a Viton o-ring seal against the oil pan, -40 deg F to +365 deg F temp rating, 250 psi rating, stainless steel components/forged nickel-plate brass body, about 1” long.

 

The “unique” GM 2.7 oil drain plug ticked me off so I just bought a EZ-126 and will try it at my next oil change. About $30 for me which includes a dust cover and shipping.

 

Here’s a pic of one on a ’24 Colorado AT4X:

 

[TheRiver]

Edited November 27, 2024 by TheRiver

[newdude]

23 hours ago, Probity said:

 

P/N 11602884 drain plug fits 2024 Silverado/Sierra/Colorado/Canyon with the 2.7 engine, and the aluminum oil pan p/n 12732388 is the same also. I surfed a Colorado forum and found folks with the metal pan 2.7’s who had questions like mine. Someone measured the drain plug thread form and said it is M10x1.5, another member tried a M12x1.75 drain plug and said it definitely did not fit. I searched online a lot and didn’t find any aftermarket M10x1.5 elastomer drain plug seals for use on p/n 11602884, only aluminum crush washers. I found plenty of aftermarket M10x1.5 drain plugs with crush washers.

 

The easy drain oil valve folks don’t help. Fumoto says they don’t have a product for a ’24 2.7 Colorado but do have a product for a ’24 2.7 Silverado – problem is, it has M12x1.75 male end and won’t fit. Votex says you can use either a M10x1.5 magnetic drain plug w/crush washer (fits) or M12x1.75 quick drain plug (which won’t fit). Valvomax only has M12 plugs. EZ Drain in their applications charts doesn’t show any M10x1.5 options – however – they recently (this year) started selling a valve (EZ-126) with M10x1.5 male end.

 

 

 

 

 

 

M10x1.5 per GM for the factory plug. 

 

11602884 fits 2023-up Silverado/Sierra, 2023-current Colorado/Canyon, Cadillac 3.0 TT V6 and the new 2.5 Turbo in Traverse/Acadia/Enclave.  

[CapitalTruck]

Like you, on my old 4.8 I used to change seal all the time, I’m on third oil change with my ‘24 2.7 and no problems so far.  I should add that service manual for ‘24 says nothing about changing seal, on the older trucks it did.

[Shall36]

Old timers like me will tell you that we never changed oil pan drain plug gaskets in the old days. There are plenty of cars running around with original stuff thats over 40 years old. The reason why you can’t find a replacement is because you don’t need a replacement.