Test pigtail? Anybody know what it works with?

[derekfl]

Other end is LPT printer port. Antique laptop stuff. Probably XP or older.

[JR IN JAX]

Looks like something that was Military/Marine.

[luv2gofast]

Other end is LPT printer port. Antique laptop stuff. Probably XP or older.

Looks like a big rig diagnostic connector. Used on Motor Home diesel pushers also.

https://www.diesellaptops.com/blogs/...tors-explained

[derekfl]

I bought an XR six outboard. It was sitting on top of it. The bears a passing resemblance to a mercruiser plug. Made me think it might be a piece of diagnostic equipment for something mercury, marine. But I guess most round plugs Bear a .passing resemblance to a mercruiser plug. And it’s old. If anybody wants to use it, I have to resurrect the laptop with an LPT port on it.

[luv2gofast]

That's a 25 Pin "D" connector. I'm sure it plugs into a diagnostic tester. I have four different testers that all use a 25 in D connector including my Mercury DDT. Very unlikely that it plugs into a laptop. No name on it?

[derekfl]

None.

[FUJIMO]

[moparbarn]

I've seen many diagnostic testers that use the LPT style connector. Autos, heavy equip., turf equip. Common in aftermarket units with multiple cables for different applications. BUT, each cable is both application & TESTER specific.....Good luck with no ID marks.

[derekfl]

And when somebody asks, are there any identifying marks on it? Don’t you say no until after you pick it up and look at it. As I did. 4919780. and the other side says Deutsche. which i think is german for german. or it might be a deutsche connector... anybody have a use for it? it will cost 10 bucks for a usps flat rate box. plus my fee of FREE!!