Established in 1912, the club played as the Manukau Rovers with Jim Rukutai as club captain. The club was officially affiliated with the Auckland Rugby League at their annual meeting on April 16. Their first committee selected at that first meeting in March 1912 was Patron: Mr. F.W. Lang, ; President: Mr. J.R. Skeates; Secretary: Mr. A.V. Patten; Treasurer: Mr. H.C. Reynolds; Committee: Messrs F.W. Sansbury, T.A. George, J. Morton, T. Grundy, H.C. Reynolds, A. Patten, E. Pullan, J. Rukutai, and S. Child. In their first season they had 53 registered members. Their senior team squad was made up of the following players: Jim Rukutai, Arthur Hardgrave, Pullen, Strong, Alexander, Targuse, Hughes, Griffiths, McGechan, Clark, Kennedy, Tole, Wilson, and Moore. They finished the 1912 season with 3 wins and 7 losses. In the 1913 season they struggled to put a full team on the field and pulled out of the senior grade after playing just 5 matches. In 1914 they fielded junior teams only and this continued until 1923 when they amalgamated with the Mangere club to enter a senior team in the competition named "Mangere United". In 1924 the entire club switched codes and became a rugby union club. They were extremely critical of the Auckland Rugby League and stated that they had been on the end of a number of poor decisions over the previous three seasons particularly to do with player registrations. The details of which were laid out in a letter from the club secretary which was published in the Auckland Star on July 12, 1924. Auckland Rugby League responded stating that the details in the letter were not correct. The Manukau Rugby League club was reborn at a meeting in Onehunga on September 29, 1932 with Jim Rukutai in attendance The club was initially mainly active in junior grades until 1936 when a senior team was re-established after Steve Watene, a Kiwi international convinced Auckland Rugby League that the team he had built from scratch would be competitive. Watene had travelled through many parts of the North Island recruiting players, including Jack Hemi, Joe Boughton, and Len Kawe, Tom Trevarthan from Otago rugby. History was made that year when they took out the Championship, Roope Rooster and Fox Memorial Trophies in their first season. Watene became the first ever Maori player to captain the Kiwi's. The club celebrated its centenary in 2011. Dean Bell was named as the Manukau Player of the Century. Given the club moved to the rugby union code in 1924 and wasn't re-established as a league club until 1932 the 2020 season would mark the 100th year of the club playing rugby league.
