The Old Trafford side will travel to Merseyside for the clash early tomorrow afternoon and Dalglish feels the Kopites’ contribution can be crucial.
Sir Alex Ferguson will bring his team to a buoyant Anfield after Manchester City were dispatched in the Carling Cup semi-final and the Liverpool boss thought the vociferous support of Reds fans was a big part of the victory.
“The performance from everybody who's got a feeling towards Liverpool Football Club on Wednesday night was fantastic,” he told Liverpoolfc.tv.
“The supporters were magnificent. They kept the players going, and the players kept them going. They both helped each other.
“Over the two legs we were certainly the better side and we deserved to go through. We just need everybody to be at the same level on and off the pitch on Saturday.
“If we play like that and get the support we got, we'll give ourselves a better chance of progressing in the FA Cup.”
Tomorrow’s game is expected to be a noisy affair as it is the first meeting between the sides since the infamous Luis Suarez and Patrice Evra incident.
Liverpool will be missing the Uruguayan forward due to the eight-game suspension he was given by the FA after being found guilty of racially abusing Evra.
Both managers have released statements with the aim of convincing fans to concentrate on supporting their respective teams and refrain from abusing any of the players.