1B2578 Nut-Hex Fits Caterpillar Models
1B2578 Nut-Hex Fits Caterpillar Models
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$23.09 USD
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$23.09 USD
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One New Aftermarket Replacement Hex Jam Nut for Caterpillar (Cat) Equipment
This 3/8"-16 hex jam nut (also known as a hex lock nut) is a standard fastener used across a wide range of Caterpillar construction and heavy equipment. Galvanized zinc coated for corrosion resistance, this nut replaces Caterpillar OEM part number 1B-2578 and is interchangeable with cross-reference numbers 4B8399 and 5L4329.
Specifications
- Nut Type: Hex Jam Nut (Hex Lock Nut)
- Thread Size: 3/8"-16 UNC (standard coarse thread)
- Nut Height: 0.22"
- Coating: Galvanized zinc
- Hardened: No
Compatible Models
Caterpillar Articulated Trucks: 725, 730, 735, 740, D250E II, D300E II, D350E II, D400E II
This is a general-use Caterpillar fastener that may fit many additional Cat construction, mining, and agricultural equipment models. Verify part number match before ordering.
Replaces Part Number(s):
1B2578, 1B-2578, 4B8399, 5L4329
New aftermarket replacement part - not remanufactured, not used.
