2F6156 Lock Fits Caterpillar Models

One New Aftermarket Replacement Locknut for Caterpillar (Cat) Equipment

This aftermarket replacement locknut (part number 2F6156) is a widely used fastener found across a broad range of Caterpillar construction and earthmoving equipment, including motor graders, track-type tractors, wheel loaders, scrapers, and engines such as the 3304 and 3306 series. Also cataloged as a Lock, Nut by some suppliers, this small but critical hardware component helps secure assemblies throughout the machine.

Specifications

• Part Type: Locknut (Lock, Nut)
• Weight: Approximately 0.02 lbs
• Manufacturer: Caterpillar (Cat)

Compatible Models

Caterpillar Motor Graders: 12F, 12G, 14E, 14G, 120, 120G, 140, 140G

Caterpillar Track-Type Tractors: D4D, D5, D6C, D6D, D6E, D6E SR, D6G, D6G SR, D6G2 LGP, D6G2 XL, D7F, D7G, D7G2, D8H, D8K, D9G, D9H

Caterpillar Wheel Loaders: 920, 941, 943, 950, 951B, 953, 955K, 955L, 966C, 977K, 977L, 980B

Caterpillar Scrapers: 518, 561C, 571G, 572G, 583K, 594H, 627, 637D

Caterpillar Engines: 1673C, 3204, 3304, 3304B, 3306, 3306B

Caterpillar Excavators: 215

This part fits additional Caterpillar models not listed above. Confirm fitment with your machine serial number before ordering.

Replaces Part Number(s):

2F6156

Aftermarket Interchange Numbers

CA2F6156, 2F-6156, M 2F6156

New aftermarket replacement part - not remanufactured, not used.