1438150 Nylon Locknut for Caterpillar Equipment

1438150 is a hex nylon-insert locknut used in the cylinder group-bucket assembly of Caterpillar equipment. It is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

Fitment

The locknut is listed for the following Caterpillar excavator models and machine series:

• 307B
• 307C
• 307D
• 308C
• 308D
• 311B
• 311C
• 311D LRR
• 312B
• 312B L
• 312C
• 312C L
• 312D
• 312D L
• 312E
• 312E L
• 313B
• 313D
• 313D2
• 314C
• 314D CR
• 314D LCR
• 314E CR
• 314E LCR
• 315
• 315B
• 315B L
• 315C
• 315D

Cross-reference numbers

• 143-8150

Specifications