1757904 NBR (75) O-Ring for Caterpillar Equipment

The 1757904 O-ring is a sealing component for Caterpillar equipment, including articulated dump trucks and backhoe loaders. It is used to seal fixed connections and selected moving assemblies where an elastomeric sealing ring is required. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

Fitment

The part is listed for the following Caterpillar equipment types and models:

• Caterpillar articulated dump trucks
• Caterpillar backhoe loaders
• Caterpillar 730
• Caterpillar 735
• Caterpillar D300E II
• Caterpillar 414E
• Caterpillar 416C
• Caterpillar 416D
• Caterpillar 416E
• Caterpillar 420D
• Caterpillar 420E
• Caterpillar 422E

Compatibility depends on the equipment configuration and the position of the seal in the assembly. The dimensions and sealing-section characteristics should be checked against the removed part and the service parts documentation for the specific machine.

Cross-reference numbers

• 1757904
• 175-7904

The numbers above identify the same O-ring designation in different number formats. They can be used when comparing the part with the number marked in equipment documentation or on the removed seal.

Specifications

The sealing ring is supplied as an individual O-ring. Its NBR construction, 75 Shore A hardness, black colour and PTFE coating are specified for this part number. The listed inside diameter, outside diameter and cross-section diameter identify the size of the ring for installation in the corresponding Caterpillar assembly.