1438151 Locknut for Caterpillar Equipment

The 1438151 locknut is a nylon locknut used in Caterpillar construction equipment, including mini hydraulic excavators, excavators, and wheel excavators. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

Fitment

• Mini hydraulic excavators: 307D, 308D
• Excavators: 308C, 311D LRR, 312B, 312B L, 312C, 312C L, 312D, 312D L, 313B, 313D, 313D2, 313D2 LGP
• Wheel excavators: M315C, M316C

Cross-reference numbers

Specifications