I changed my oil for the first time yesterday. I had read that the oil drain plugs for the Cummins were prone to cracking so I ordered a heavy duty plug from Geno's Garage to replace it.

The original plug unscrewed easily--finger removal after initially using a rachet to break it loose. I went to put in the new plug and it fit very tight. The more I screwed it in the tighter it became so I pulled it out at about the halfway point and put the original plug back in. The original went in easily with just my fingers and I torqued it to 37 pounds per the owner's manual. No leaks after running the engine for about 10 minutes.

Anyone use this type of oil plug? Is it a tight fit compared to the original?

 

Yeah mine from geno's fit tight as well. After I've changed my oil 6-7 times it's fine with no leaks. Still a little tighter than the OEM plug but more heavy duty IMHO.

Jamie

 

I have never had one of the new plugs leak if you torq them down right. Anything will break if you overtighten it....

OilGuy