6V5597 O-Ring for Caterpillar Equipment

The 6V5597 O-ring is a sealing component for Caterpillar engine equipment and is used in axial and radial sealing applications. It is made from nitrile rubber (NBR) with a specified hardness of 90 Shore A and is black in color.

This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts). The part is identified by SKU 6V5597 and is also written as 6V-5597 in equipment and spare-parts references.

The O-ring forms a seal between mating surfaces or components to help prevent the passage of fluids and contamination through the joint. Its application is determined by the dimensions, material, hardness, and sealing arrangement of the Caterpillar equipment assembly in which it is installed.

Fitment

The 6V5597 O-ring is listed for use with the following Caterpillar engine models:

• Caterpillar 3066
• Caterpillar 3116
• Caterpillar 3126
• Caterpillar 3126B
• Caterpillar 3176C
• Caterpillar 3196
• Caterpillar 3306
• Caterpillar 3406
• Caterpillar 3406B
• Caterpillar 3406C

Fitment applies to the listed Caterpillar engine models where the corresponding 6V5597 O-ring specification is required. The exact installation position is determined by the particular engine assembly and service-parts documentation.

Cross-reference numbers

• 6V5597
• 6V-5597

The numbers above identify the same O-ring reference in different formatting. The equipment manufacturer reference is listed as Caterpillar 6V5597 / 6V-5597.

Specifications

The dimensional data for the sealing section is specified in inches: 0.1 inch cross-section diameter, 1.61 inch inner diameter, and 1.818 inch outer diameter. The product data also lists overall dimensions of 8.89 cm in length, 15.24 cm in width, and 1.27 cm in depth, together with a listed weight of 0.1 lb.