1B4438 Nut-Hex Castle Fits Caterpillar Models
1B4438 Nut-Hex Castle Fits Caterpillar Models
Couldn't load pickup availability
One New Aftermarket Replacement Hex Castle Nut for Caterpillar (Cat) Equipment
This aftermarket replacement hex castle nut replaces Caterpillar (Cat) OEM part number 1B4438. Hex castle nuts feature slots cut into a cylindrical crown portion, allowing them to be used with a cotter pin and drilled fastener to prevent loosening under vibration -- a critical requirement on heavy construction and grading equipment. This nut is a general fastener used across a wide range of Caterpillar machinery including motor graders, track-type tractors, landfill compactors, hydraulic controls, marine engines, and ripper attachments.
Compatible Models
Caterpillar Motor Graders: 120, 120B, 12E, 12F, 140, 140B, 14E
Caterpillar Landfill Compactor: 826B
Caterpillar Rippers: 8B, 9B
Caterpillar Hydraulic Control: 140, 153
Caterpillar Track-Type Tractor: D4E
Caterpillar Marine Engines: D315, D364, D397D
Replaces Part Number(s):
1B4438, 1B-4438
New aftermarket replacement part - not remanufactured, not used.
