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Development of an efficient bioinoculum is considered as an appropriate remedial approach to treat the PAHs-metal mixed contaminated sites. Therefore, we aimed to isolate a degrader able to exert an outstanding PAH catabolic potential with added traits of pH-metal-resistance, N-fix or P-solubilization from a manufactured gas plant site soil. The identified strain (MTS-6) was a first low and high molecular weight (LMW and HMW) PAHs degrading Trabulsiella sp. tolerant to pH 5. MTS-6 completely degraded the model 3 [150mgL-1 phenanthrene (Phe)], 4 [150mgL-1 pyrene (Pyr)] and 5 [50mgL-1 benzo[a]pyrene (BaP)] ring PAHs in 6, 25 and 90 days, respectively. Presence of co-substrate (100mgL-1 Phe) increased the biodegradation rate constant (k) and decreased the half-life time (t1/2) of HMW PAHs (100mgL-1 Pyr or 50mgL-1 BaP). The strain fixed 47μgmL-1N and solubilized 58μgmL-1P during PAH metabolism and exhibited an EC50 value of 3-4mgL-1 for Cu, Cd, Pb and Zn. Over 6mgL-1 metal levels was lethal for the microbe. The identified bacterium (MTS-6) with exceptional multi-functional traits opens the way for its exploitation in the bioremediation of manufactured gas plant sites in a sustainable way by employing bioaugmentation strategy. Refereed/Peer-reviewed