The Muncie 21T39928 is a genuine Muncie Power Products M10 hardened flat washer used as a service part in Muncie PTO assemblies. This washer appears across multiple Muncie pump configurations in the SP03-03 service parts document, including units rated at 1.07, 1.60, 2.12, 2.64, 2.90, and 3.68 GPM - confirming its role as a shared hardware component across a range of Muncie PTO-driven pump applications. When replacing hardware during a PTO or pump service, using the correct Muncie-specified fastener hardware keeps the assembly within OEM specification. Pro Gear and Transmission carries genuine Muncie parts. Call us to confirm the right fit for your unit.
Features
Genuine Muncie Power Products service hardware
M10 hardened flat washer construction
Specified across Muncie PTO pump models ranging from 1.07 GPM to 3.68 GPM
Referenced in Muncie service parts document SP03-03
Direct OEM replacement for PTO and pump assembly service
