** Truck maker Paccar PCAR.O shares down 5.3% to $87 in early trade

** Co posts a decline in Q1 profit on lower truck and parts sales during the quarter

** Co posts Q1 adj. profit of $1.46/share as compared to $2.25/share posted in the same period last year

** However, Q1 revenue was $7.44 bln as compared to analysts estimate of $7.17 bln - data compiled by LSEG

** PCAR said North American truck market being affected by uncertain economic conditions and impact of new tariffs

** Says estimates U.S. and Canada Class 8 truck 2025 sales to be 235,000-265,000, down from 250,000-280,000 estimated last quarter

** 5 of 21 brokerages rate the stock "buy" or higher, 13 "hold" and 3 "sell" or lower; their median PT is $100

** As of last close, stock had fallen 17.1% YTD

(Reporting by Apratim Sarkar)

((Apratim.Sarkar@thomsonreuters.com))