Huddersfield are looking to secure a vital three points in their search for Premier League survival, while West Ham, who have earned 12 points from their last seven games, could leapfrog their opponents with a win in West Yorkshire.
- This was David Moyes' 200th win as a manager in the Premier League, becoming the fourth person to achieve this feat after Alex Ferguson (528), Arsene Wenger (468) and Harry Redknapp (236).
The Hammers took the lead in the 25th minute, taking advantage of sloppy play when after a pass from keeper Jonas Lossl, Town's Joe Lolley was robbed near the edge of his area and Mark Noble burst goalwards and fired home.
Making such a mistake on his first home Premier League start could have easily affected the 25-year-old, but he responded in the ideal fashion by levelling things up before the break.
With the wind in their sails, West Ham pushed for a third and came within inches as Aaron Mooy cleared off the line after Lossl had failed to deal with an Aaron Cresswell corner.
Just seconds after the break, Arnautovic restored West Ham's lead, showcasing his technique as he hooked the ball past Tommy Smith and then drilled the ball home.
"We have a long way to go but the players have done brilliantly well since we came in and they did very well today", he said.
"The West Ham away game was one of the performances, with Swansea maybe, where I think we really underperformed", he told reporters.