** Jefferies raises PT on infrastructure firm MasTec Inc MTZ.N to $252 from $218, reiterates rating at "buy"

** New PT shows an upside of 18.4% from the stock's last close

** Brokerage says co is on track to achieve double-digit profit margins, driven by a better mix of businesses and improving performance in Power Delivery, Communications, and Construction Engineering and Inspection segments

** Notes future growth could come from high-voltage transmission and large gas pipeline projects, while easing clean energy concerns and big project wins add to co's long-term potential

** 19 of 20 brokerages rate the stock "buy" or higher, 1 "hold"; their median PT is $215- data compiled by LSEG

** As of last close, stock had risen 56.3% YTD, compared with a 38.4% YTD increase in the S&P 400 Construction & Engineering (Industry) index .SPMDCCSE

(Reporting by Apratim Sarkar in Bengaluru)

((Apratim.Sarkar@thomsonreuters.com))