4L7854 Locknut for Caterpillar Equipment

4L7854 is a nylon locknut used on Caterpillar equipment, including Caterpillar gas engines, generator set engines, industrial engines, and marine engines. This is a new aftermarket spare part manufactured by CTP (Costex Tractor Parts).

Fitment

• Gas engines:
  • G379
  • G398
  • G399
• Generator set engines:
  • D379B
  • D399
• Industrial engines:
  • D379
  • D398
  • D399
• Marine engines:
  • D379A

Specifications