He is a member of the United Malays National Organisation (UMNO), the largest political party in the former ruling Barisan Nasional (BN) coalition.
His views were heavily pro-Malay, and he suggested many times in parliament for the NEP target of a 30% stake of the economic action be raised to 40%-50% to benefit the Malays.
In 1982, Suhaimi lost the leadership of UMNO Youth after the fledgling politician Anwar Ibrahim wrested the control of the movement from him by a slim 10-vote majority in a bitterly fought contest.
He was lambasted for such a suggestion by Lim Kit Siang of the Democratic Action Party (DAP), who denouncing such a view as "extremist and chauvinistic."
In May 2008, German company GUNT, represented by Datuk Suhaimi Kamaruddin, Marisa Regina Mohd Aris Rizal and Saidatun Nasihah, won against the Cheras firm, MS Instruments Sdn Bhd.
The case involved the latter supplying the Education Ministry with imitation products under the guise of the genuine German article.