Upgrade your Onan QSB 3.3L engine with the Mitsubishi TD04L Turbocharger 3800880. Manufactured by Mitsubishi, this TD04L model turbocharger is new and includes a 1-year manufacturer's warranty. Cross-reference numbers for this turbo include 6208-81-8212, 6208818212, C6205818211, C6205818212, C6205818213,