This very nice and rather rare HO gauge locomotive by Piko is 57586 a Siemens Eurorunner diesel locomotive in Nord-Ostsee-Bahn livery, it has running number DE2000-02. 

The Eurorunner family of locomotives are a series of medium- to high-power diesel-electric locomotives built by Siemens for the European market. Introduced from 2002 onwards, they share design characteristics with the successful Eurosprinter range of electric locomotives, also built by Siemens.

The main initial order for these locomotives was for 100 of the four-axle ER20 for the Austrian Federal Railways (ÖBB) and designated ÖBB type 2016, and commonly called Hercules; further smaller orders from smaller railway companies have also been fulfilled. In Germany the locos are known as BR 223. 

The loco is in excellent condition as you can see in the pictures, I have not tested it but I can see no reason why it would not run, so it it is sold in untested condition,, but a complete external visual inspection has shown no reason why this loco would not run and it the overall condition is very good. The box is in good if slightly shelf worn condition. 

Overall this is a really nice scale locomotive and would look fantastic on a layout.

Do please have a look at my other listings, I typically have various HO and OO locos on offer as well as an extensive range of imported N gauge locos and other items. 

Note: I do recommend all locos are cleaned & serviced, as they have some age to them even if the quality looks at the highest level (fairly standard advice for all locos!).