The Muncie Idler Assembly, part number GPKDF45-8M or GPKDF458M, is a genuine Muncie power takeoff component designed as a direct service replacement within compatible Muncie PTO units. Muncie PTO assemblies are widely used in truck-mounted hydraulic and mechanical drive applications, and the idler assembly is a core internal component that maintains gear engagement and load transfer within the PTO drive train. Pro Gear and Transmission carries this part for buyers needing an exact Muncie replacement. Call us to confirm this is the correct idler assembly for your specific PTO model and application before ordering.FeaturesGenuine Muncie part number GPKDF45-8M or GPKDF458MIdler assembly for Muncie power takeoff (PTO) unitsDirect service replacement for internal PTO drive trainSold by Pro Gear and TransmissionCall to confirm proper fit for your Muncie PTO model