Everton are one a just a handful of clubs who regullary sell out of their allocation of tickets for away games and have done the same for this weekend against Burnley.
Koeman says it always helps the side seeing the away end full of fans all giving their all for the players.
He told the club's website: "When I became manager of the Club, they told me that Everton were one of only a few teams that always sold out their away allocation.
“That is great support.
“It is fantastic for the players. You really feel that support from the fans and that makes the team stronger.
“It is really enjoyable when you get a win away from home and you can celebrate it with the fans.”