2K8199 O-Ring for Caterpillar Equipment

2K8199 is a standard O-ring seal used in Caterpillar equipment, including Caterpillar backhoe loaders and Challenger models. The seal is intended for axial or radial sealing applications where it helps prevent leakage and contamination. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The O-ring is made from NBR (nitrile rubber) and is identified by a black, uncoated finish. The supplied specifications identify it as an SAE AS568 Dash Size -122 seal with a nominal hardness of 75 Shore A.

Fitment

The 2K8199 O-ring is listed for the following Caterpillar equipment models and series:

• Caterpillar 416C backhoe loader
• Caterpillar 426C backhoe loader
• Caterpillar 428C backhoe loader
• Caterpillar 436C backhoe loader
• Caterpillar 438C backhoe loader
• Caterpillar 65 Challenger
• Caterpillar 65B Challenger
• Caterpillar 65C Challenger
• Caterpillar 65D Challenger
• Caterpillar 65E Challenger

Fitment is specified for Caterpillar backhoe loaders and Caterpillar Challenger models. Application within a machine may vary according to the assembly and sealing location, so the part number should be checked against the parts documentation for the specific equipment.

Cross-reference numbers

2K8199 and 2K-8199 refer to the same listed O-ring part number format.

Specifications