Dongfeng Dana 3502041-MQ01A Rear Left Brake Camshaft

The 3502041-MQ01A is a rear left brake camshaft (S-cam) designed for heavy-duty commercial vehicle drive axles. Manufactured by Dongfeng Dana Axle Co., Ltd. (DDAC), this component converts rotational force from the slack adjuster into linear expansion of the brake shoes against the drum. Constructed from forged alloy steel with induction-hardened bearing journals and cam lobes, the shaft ensures high wear resistance and fatigue strength under repeated braking cycles. The spline interface conforms to Dana standard specifications for secure torque transmission. Overall length measures 528 mm between spline end and cam head extremity. This part serves as a direct replacement for Dongfeng Dana axle assemblies equipped on Sinotruk Howo, Foton Auman, and Dongfeng commercial vehicle platforms. Cross-references generic Dana aftermarket number QDT3502041-B1 and Foton OE number SQDT3502041-B1.