The Muncie 21T20421 is a genuine Muncie lock washer designed as a replacement part for Muncie Power Takeoff (PTO) assemblies. Lock washers are critical fastener components that prevent loosening under vibration and dynamic load conditions common in PTO-driven applications on heavy-duty trucks. If you are sourcing this part for a Muncie PTO and need help confirming it fits your specific unit, give us a call at Pro Gear and Transmission and we can help you verify the application.
Features
Genuine Muncie replacement part
Direct replacement lock washer for Muncie PTO assemblies
Part number 21T20421
Designed to resist loosening under vibration and dynamic load conditions typical of PTO-driven systems
Sold by Pro Gear and Transmission
