The Fabco 688-0743 or 6880743 is a genuine OEM self-locking nut with Dri-Loc #201 pre-applied thread-locking compound. Dri-Loc #201 is a dry, patch-style thread adhesive that activates under torque, providing resistance to loosening without the mess of liquid adhesives. This hardware is sourced directly through Fabco's OEM supply chain and is sold by Pro Gear and Transmission for use in Fabco transfer case, PTO, and steerable drive axle assemblies. When a specific fastener is called out in a Fabco service procedure, using the correct self-locking specification matters. Not sure this is your part? Give us a call to confirm proper fit for your application.
Features
Genuine OEM Fabco part number 688-0743 or 6880743
Self-locking nut with Dri-Loc #201 dry patch thread-locking compound pre-applied
Dri-Loc #201 activates under torque to resist vibration-induced loosening
Designed for Fabco transfer case, PTO, and steerable drive axle service
Sold by Pro Gear and Transmission
