The Nigerian intentional striker came on at half time to provide additional strength upfront and despite not scoring his physicality did cause Arsenal a number of problems.
Emenike was also useful defensively making three clearances and working hard over the 45 minutes harassing Arsenal defenders.
The powerful striker has two goals in 10 appearances for the Hammers this season and there is some debate over whether Slaven Bilic will keep him on or not over the summer.
West Ham do have a buy-out clause option which will remain active until the end of the season but Bilic has yet to make his decision over whether the club plans to keep him on.
Fenerbahce are willing to part ways with Emenike after he fell out with fans and the board last season but it remains in the hands of the Hammers.