2K0337 Lock Nut Fits Caterpillar Models
2K0337 Lock Nut Fits Caterpillar Models
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One New Aftermarket Replacement Lock Nut for Caterpillar (Cat) Equipment
This aftermarket replacement lock nut replaces Caterpillar (Cat) OEM part number 2K0337 (also referenced as 2K-0337). It is a hex head self-locking nut used as a standard fastener across a wide range of Caterpillar construction and heavy equipment. The self-locking design resists loosening caused by vibration and dynamic loads, maintaining secure fastened connections in demanding work environments.
Specifications
- Type: Hex Head Self-Locking Cone Lock Nut
- Thread Size: 3/4"-16 UNF
- Material: Steel
- Finish: Standard (uncoated/zinc)
Compatible Models
Caterpillar (Cat): This is a standard Caterpillar fastener used across numerous Cat construction, mining, and heavy equipment models. Please verify the part number 2K0337 against your machine's parts manual or service documentation to confirm fitment for your specific model and serial number.
Replaces Part Number(s):
2K0337, 2K-0337
New aftermarket replacement part - not remanufactured, not used.



