The Wuling B15 is a 1.5-liter, 4-cylinder gasoline engine (often identified as L2B or L3C) designed for Wuling Rongguang, Hongguang N300, and Baojun models. It features a water-cooled, aluminium alloy cylinder head with cast iron block, delivering approximately 79kW–83kW of power and 147 N.m of torque.

Engine Type: 4-Cylinder in-line, 16-Valve, DOHC (Double Overhead Camshaft)

The B15 engine is designed for durability and is commonly used as a direct replacement engine for SGMW (SAIC-GM-Wuling) commercial vehicles.