8T4139 Hex Head Bolts Zinc Flake for Caterpillar Equipment

8T4139 is a steel hex head bolt used to fasten track shoes to track links in Caterpillar equipment track assemblies. The bolt has a zinc flake finish and is supplied as a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

The available product data identifies the application by equipment brand and track assembly function. It does not specify individual Caterpillar machine models or series, therefore no model-specific fitment list is provided. Before installation, the part number, thread parameters, bolt dimensions, and required quantity should be checked against the machine parts documentation and the removed fastener.

Cross-reference numbers

• 8T4139
• 8T-4139

The two numbers above are the same part number shown in two formatting variants. The available data does not identify additional supplier numbers or a separate replacement number.

Specifications

The supplied specifications describe the fastener type, material grade, thread information, protective coating, and listed dimensions. The source data does not state the number of bolts included in a package, the compatible track shoe width, the applicable Caterpillar machine series, or the required tightening torque. These parameters should be confirmed from the equipment service documentation for the specific track group.