Which brands come with drain plug gaskets?

[ZeeOSix]

A better option IMHO is a Stat-o-seal with the viton liner. Requires very little torque to seal quite effectively and is quite resistant to damage if you don't go cave man on the torque.

Some people call them "dowty seals."

McMaster has them. Not cheap at $7 for a seal, but since it's basically a lifetime seal, won't leak and doesn't need much torque to seal, it's probably worth doing to just buy once, cry once. Especially if you are doing some kind of permanent valve thing instead of a drain plug.

Those would probably work fine, but for $5-$7 I can buy 15+ aluminum or copper drain plug washers on Amazon, and also don't have to worry about any rubber in the drain plug seal to not degrade over time and use. Al a Cu drain plug washers have never failed me in decades, even when reusing them many times. I don't "anneal" the Cu washers, they seal just find over and over with the proper drain plug torque spec from the manual. If I see any sign of cracking or degradation, a new washer goes on, but I've used some 10 times with no signs of degradation.

Here's the aluminum flat washer that came on the Gold Plug magnetic drain plug. It's been used 4 times so far, and looks fine and never any signs of leakage.

 

[GMBoy]

I can't speak for your particular application but whenever I do a BMW, Mercedes or other Euro oil change the STP filters have come with the filter O-rings and the crush washers. Check them out.

I did a filter search for a 2015 GLK350 (you didn't specify year so I guessed) and STP does include the crush washer:


https://www.autozone.com/p/stp-extended-life-engine-oil-filter-element-s11060xl/5531

 

[CleanSump]

A better option IMHO is a Stat-o-seal with the viton liner. Requires very little torque to seal quite effectively and is quite resistant to damage if you don't go cave man on the torque.

Some people call them "dowty seals."

McMaster has them. Not cheap at $7 for a seal, but since it's basically a lifetime seal, won't leak and doesn't need much torque to seal, it's probably worth doing to just buy once, cry once. Especially if you are doing some kind of permanent valve thing instead of a drain plug.

I had a 1954 Enfield military motorcycle that used many dowty seals for washers on the engine. It was really a 1930s design with external oil lines to the rockers. Some banjo bolts for oil lines and bolts sealing oil passages.

 

[VWRand]

I've never had a filter come with a drain plug gasket. I buy Mann regularly and Hengst occasionally

 

[Hootbro]

Bought a FRAM cartridge filter for my son's KIA Telluride with the 3.8L and it came with a drain plug gasket. Filter also was made in Korea.

 

[Rick G42]

The 4 Mahles I've used had them, and the Mann i have on the shelf has it as well.

 

[Nicasio]

I can't speak for your particular application but whenever I do a BMW, Mercedes or other Euro oil change the STP filters have come with the filter O-rings and the crush washers. Check them out.

I did a filter search for a 2015 GLK350 (you didn't specify year so I guessed) and STP does include the crush washer:


https://www.autozone.com/p/stp-extended-life-engine-oil-filter-element-s11060xl/5531

2011