The Muncie Cap Seal, part number 3902363, is a genuine Muncie replacement seal designed for Muncie power takeoff units. Cap seals serve a critical function at housing end caps, helping to contain lubricant and prevent contamination ingress at the sealing point. Sourcing the correct OEM seal helps maintain the integrity of the PTO housing during operation. Pro Gear and Transmission carries genuine Muncie parts for fleet and shop buyers. Call us to confirm this seal fits your specific Muncie PTO unit before ordering.FeaturesGenuine Muncie replacement cap sealPart number 3902363Designed for Muncie PTO housing end cap applicationsHelps maintain lubricant containment at the seal pointSold by Pro Gear and Transmission