"It will be nice to give whatever I can give to help the boys out and try and get them promoted," Harewood told the club's official website.
"I don't know about looking beyond these six games - people might say I've got something to prove, but all I'm doing is looking forward to getting back in and enjoying my football.
"The manager has just told me he wanted to come in and boost the squad. He wants the team to get promoted and so do I.
"I will give anything I can to help out because the lads have done really well to get where they are and all I'm thinking about is playing these six games."