Cech, signed from Premier League champions Chelsea during the close season, came flying out to punch Dimitri Payet’s free kick just before halftime but was beaten to the ball by the head of West Ham’s Cheikhou Kouyate.
Mauro Zarate doubled West Ham’s advantage in the 57th minute when his low strike beat Cech at his near post as former West Ham player Slaven Bilic enjoyed victory in his first Premier League match as a manager.
Newcastle United also have a new manager in Steve McClaren and the former England coach’s first league match in charge ended in a 2-2 draw against Southampton at St James’ Park.