Caterpillar Part reference
This page covers Caterpillar part number 0113580, catalogued as a square head setscrew. The catalog records associations with a turbocharger group on a Caterpillar 3406C and an air governor actuator group on a Caterpillar 3408C, but those occurrences describe surrounding assemblies rather than this screw's own specifications.
Recorded applications
Selected catalog references that list this part. A catalog association does not confirm fitment for every machine or configuration.
Catalog context
LockedCheck the signed-in Part Book for available diagrams and the complete catalog breakdown.
| Part number | Description |
|---|---|
| 0113580 | setscrew-square head (current part) |
| 0S***19 | bolt,machine gear retaining part of kit p/n 1w7046 |
| 11***60 | diaphragm |
| 13***12 | turbocharger group |
Selected entries from this catalog unit. Other part numbers are masked. Confirm the full breakdown and your machine configuration before ordering.
Browse Caterpillar modelsGeneral guidance
In general, a setscrew is a headless threaded fastener that is tightened to press against or lock another component, such as a collar, pulley or shaft. A square head is a design where the screw can be turned with a square-drive tool, which can allow higher torque than some other head styles. Exact dimensions, thread size, material and finish are not stated in this listing.
Use part number 0113580 when ordering this square head setscrew. Before buying, confirm the thread size, length and any other dimensions against the original component, since the catalog associations shown here are not a guarantee of fit for every machine configuration.
Catalog references
Locked