3D2992 O-Ring for Caterpillar Equipment

3D2992 is a standard O-ring used as an axial or radial seal in Caterpillar equipment. It is used to help prevent leakage and contamination at the sealed connection. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is listed for Caterpillar backhoe loaders and cold planers. The supplied catalog data identifies the O-ring as an NBR nitrile rubber seal with a Shore A hardness of 75 and SAE AS568 dash size -121.

Fitment

The O-ring is listed for the following Caterpillar equipment types and models:

• Caterpillar backhoe loaders
• Caterpillar cold planers
• Caterpillar 420E
• Caterpillar 430E
• Caterpillar 432E
• Caterpillar 434E
• Caterpillar 442E
• Caterpillar 444E
• Caterpillar 450E
• Caterpillar PM-201
• Caterpillar PM-565
• Caterpillar PM-565B

Compatibility should be checked against the equipment model, serial number and the dimensions of the removed seal before installation, because the same machine series may use different sealing components depending on the assembly.

Cross-reference numbers

3D2992 and 3D-2992 are the two catalog formats provided for the same O-ring identification.

Specifications

The inch measurements identify the sealing dimensions: 1.05 in inner diameter, 1.255 in outer diameter and 0.1 in cross-section diameter. The catalog also provides separate length, width and depth values in centimeters, which are reproduced as listed for this part.