3Y9984 Manifold (rear) fit Caterpillar

3Y9984 is a rear exhaust manifold for Caterpillar equipment and engines. It is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The manifold is listed for use with Caterpillar engine-machine applications and Caterpillar machines equipped with the specified engine configurations. The supplied application data identifies the part as an exhaust manifold and associates it with several Caterpillar excavator, pipelayer, and track-type loader applications.

Fitment

The part is used on the following Caterpillar equipment models and series:

• Caterpillar 3306
• Caterpillar 3406
• Caterpillar 3406B
• Caterpillar 3406C
• Caterpillar 235B
• Caterpillar 235C
• Caterpillar 235D
• Caterpillar 572R
• Caterpillar 973

Equipment categories associated with the listed fitment are Caterpillar engine-machine assemblies, excavators, pipelayers, and track-type loaders. Compatibility should be checked against the engine arrangement and the part number installed on the machine, because the same equipment series can use different manifold configurations.

Cross-reference numbers

3Y9984 is listed as interchangeable with the following Caterpillar part numbers:

The cross-reference numbers identify the manifold within the supplied equipment-parts catalog data. They are provided for part identification and should be compared with the number stamped or recorded from the manifold being replaced before installation.

Specifications

The listed dimensions are 36 cm in length, 32 cm in width, and 12 cm in depth. The listed weight is 10.6 lb. No additional information about material, thread specifications, gasket contents, mounting hardware, or included components is provided for this part.