I have a pair of the Erie Built sets and both have fallen to the dreaded zinc pest on the couplers. I done a web search and found some 2 inch but need 1.750 in length.
Thanks for your time
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Care to be more specific about exactly what product number you have?
Atlas Erie-Built electrocouplers are part number 680850.
@Bob posted:Atlas Erie-Built electrocouplers are part number 680850.
Who's part number?
That's the Atlas part number, written on the bag of 30 couplers I bought from them several years ago. The part number appears as 680805 in this diagram from the Atlas site. I talked to them on the phone when I ordered, and I specified couplers for the Erie-Builts.
Sorry John, Atlas 1208-2.
Bob, thanks for the part number. The Atlas site indicates that's for an SD-35. So these are interchangeable between the two models correct?
Several of their Diesels with t-bar coupler attachments used the same electrocoupler. I like them because they are relatively short and mate well with other brands of rolling stock.
Thanks again Bob. 
I have several of those couplers in my parts box. I never knew the part number for them, they came off dead chassis and I filed them away.
Well John, you might want to check them for zinc rot. I have four bad ones out of six. Not only did they break off where they join the truck assembly, one snapped off where the coupler meets the coil. 
@milwrd posted:Well John, you might want to check them for zinc rot. I have four bad ones out of six. Not only did they break off where they join the truck assembly, one snapped off where the coupler meets the coil.
Pest-free as far as I can tell.
I even have some of the scale electrocouplers, never found a use for them.
Attachments
"you might want to check them for zinc rot"
I had one of the original couplers on my Erie-Builts develop zinc pest. None of the couplers (out of 30) that I bought from Atlas Parts around 10 or 12 years ago have had any problems.
I broke a knuckle out on the main line with one of my Atlas Erie Built a couple of years ago, and posted a photo. I'm sure that was zinc pest, too, but, oh, well, I just bought new couplers from Atlas and, if I live long enough, I might have to do it again. 
