Lock Nut 4007603

positive OEM
Cummins
Part# 4007603
note
Lock nut securing fasteners against vibration in heavy-duty trucks.
Package discount applied. Your savings:
info
Extended Lead Time
Have a Question?
Live Chat chat or Contact us

Description

The Cummins Lock Nut (4007603) is a mechanical fastener designed to secure threaded connections in heavy-duty truck systems. It prevents loosening caused by vibration and rotational forces, maintaining the integrity of bolted assemblies in dynamic operational environments.

Key Specifications

  • Application: QSK50, QSK60, QSK78, QSK95 engine series
  • Function: Prevents fastener loosening under vibration
  • Compatibility: Heavy-duty commercial truck engines
  • Construction: High-strength steel
  • Features: Locking mechanism with deformed threads
  • Quality: OEM Cummins part

Shipping Info

Next Day Air services are available for In Stock items. Our shipping cutoff time is Monday - Friday 4:30pm Eastern Standard Time (EST). 

 

For more shipping information, please see our Shipping & Delivery page.

More Information

Current Part# 4007603
Type OEM
Part# variations 4007603 CUM,
4007603CUM
Manufacturer Cummins
Warranty Standard Manufacturer Warranty