9l5521 New Rear Manifold Fits Caterpillar Industrial Construction

The 3306 exhaust system is a three-section design -- front, center, and rear -- and this part replaces the rear section (9L5521). 9L5521, ENJ80-0062. Compatible Models. Call us toll-free at1-888-6PARTS6 (1-888-672-7876) or directly at517-347-7033.