8C5177 O-ring for Caterpillar

8C5177 is an O-ring used in Caterpillar equipment, including 973, 973C, and 973D track loaders. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The part is identified by SKU 8C5177. The available product data defines it as an O-ring and lists Caterpillar track loader applications. The equipment brand named for fitment is Caterpillar; the O-ring is not identified as a part manufactured by Caterpillar.

Fitment

• Caterpillar 973 track loader
• Caterpillar 973C track loader
• Caterpillar 973D track loader

The listed applications are limited to the Caterpillar 973, 973C, and 973D track loader models. No additional machine series, engine applications, excavator applications, loader applications, or tractor applications are specified in the available product data.

Fitment should be checked by comparing the equipment model and the required part number with the machine parts documentation before installation. The available information identifies the part by number and model application but does not provide a system position, assembly name, seal location, or installation orientation.

Specifications

The available dimensions are recorded as length, width, and depth: 18 cm, 15.3 cm, and 0.2 cm respectively. The product data does not state whether these measurements describe the O-ring itself, its packing, or the recorded shipping dimensions; therefore, they should not be treated as the O-ring cross-section or inside diameter.

The available data does not specify the O-ring material, inside diameter, cross-section, hardness, temperature range, fluid compatibility, seal position, or installation kit contents. No additional technical parameters are provided.