9L5521 New Rear Manifold Fits Caterpillar Industrial Construction Models
9L5521 New Rear Manifold Fits Caterpillar Industrial Construction Models
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One New Aftermarket Replacement Rear Exhaust Manifold Fits Caterpillar (Fits CAT) Industrial and Construction Equipment
This aftermarket replacement rear exhaust manifold is designed Fits Caterpillar equipment powered by the 3306 diesel engine. The Fits Caterpillar 3306 is a 10.5L inline 6-cylinder diesel used across a wide range of Fits CAT dozers, motor graders, wheel loaders, excavators, and pipe-layers. The 3306 exhaust system is a three-section design -- front, center, and rear -- and this part replaces the rear section (9L5521). It collects exhaust gases from the rear cylinders and routes them into the exhaust outlet, making an accurate section match critical for proper sealing and performance.
Compatible Models
Fits Caterpillar (Fits CAT) -- Equipment with 3306 Engines:
Dozer: D5, D5B, D6C, D6D, D6H, D7F, D7G
Crawler Loader: 977K, 977L
Wheel Loader: 950B, 950E, 966, 966C, 966D
Motor Grader: 12E, 12F, 12G, 14E, 14G, 120, 120B, 140, 140B, 140G
Excavator: 215B, 235, 235B, 235C
Pipe-Layer: 561C, 561D, 571F, 571G, 572F, 572G
Replaces Part Number(s):
9L5521, ENJ80-0062
New aftermarket replacement part - not remanufactured, not used.
Models This Part Fits:
3306Reference Numbers:
9L5521Product Category:
ConstructionView More: Construction Replacement Parts
Product Group:
Mufflers/Exhaust PipesView More: Mufflers/Exhaust Pipes Replacement Parts



