** Machinery manufacturer Oshkosh Corp OSK.N rises 2% to $100 in premarket trading

** Truist Securities upgrades co to "buy" from "hold"; raises PT to $127 from $93, an upside of 29.2% to stock's last close

** Says defense sales and margins expected to improve in 2026 as repriced contracts on heavy tactical vehicle sand medium tactical vehicles will be accretive to margins in 2026

** Also says delivery vehicle contract win, which is the U.S. Postal Service's first large-scale fleet procurement, is also an opportunity to improve margins and diversify away from the tactical wheeled vehicle market

** However, brokerage raises concern on access equipment business as sales are expected to be down 15% in 2025

** Truist raises 2026 adj. EPS forecast to $12.55 from $11.55

** Nine of sixteen brokerages rate it "buy" or higher, six "hold" and one "sell"; median PT is $109.50 - data compiled by LSEG

** As of last close, stock had risen 3.4% YTD

(Reporting by Apratim Sarkar)

((Apratim.Sarkar@thomsonreuters.com))