The Meritor self-locking nut MS21042-6 or MS210426 (reference #03058) is a genuine Meritor OEM fastener used in heavy-duty truck component assemblies. Self-locking nuts resist loosening under vibration and dynamic load cycles, making them a standard hardware element in brake and drivetrain assemblies built to Meritor specifications. This is a direct OEM replacement part, sourced and sold by Pro Gear and Transmission. If you need help confirming this is the correct fastener for your application, give us a call.
Features
Genuine Meritor OEM self-locking nut
Part number MS21042-6 or MS210426
Meritor reference number #03058
Self-locking design resists loosening under vibration
Sold by Pro Gear and Transmission
