Nut 21937

positive OEM
Fuller
Part# 21937
note
Lock nut securing mainshaft in manual transmissions for heavy-duty trucks.
Package discount applied. Your savings:
info
shipping-move Ships in 1-3 days
Have a Question?
Live Chat chat or Contact us

Description

The Eaton Fuller Transmission Mainshaft Lock Nut (21937) secures critical transmission components by fastening the mainshaft assembly. This nut is engineered to maintain proper torque and prevent loosening under operational stresses in manual transmissions. It is essential for maintaining transmission integrity in heavy-duty vehicle drivetrains.

Key Specifications

  • Application: Manual transmission output shaft
  • Function: Secures mainshaft assembly
  • Compatibility: Fuller FS series transmissions
  • Construction: Steel alloy
  • Features: Locking design, corrosion-resistant finish
  • Quality: OEM Eaton 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# 21937
Type OEM
Manufacturer Fuller
Warranty Standard Manufacturer Warranty