The Muncie 12T43296 is a retainer ring, identified in Muncie Power Products service documentation as a snap ring used in PTO assembly. Muncie's own service parts literature (SP21-01.pdf and SP25-01.pdf) lists this part by name across multiple PTO series, confirming it as a catalogued service replacement component. It appears in parts breakdowns for both the A20 Series and Z21 Series Power Take-Offs, which are medium-duty, clutch-shift units designed for Allison 3000/4000, Ram TorqueFlite HD/ZF PowerLine, and PACCAR TX-8 transmissions. Pro Gear and Transmission carries genuine Muncie parts. Call us to confirm the correct application for your PTO unit.
Features
Genuine Muncie Power Products service part
Identified in Muncie documentation as both a Snap Ring and Retainer Ring (part number 12T43296)
Referenced in Muncie service parts literature SP21-01.pdf and SP25-01.pdf
Appears in parts breakdowns for Muncie A20 Series and Z21 Series PTO units
A20 Series is a medium-duty, clutch-shift PTO for Allison 3000 and 4000 Series transmissions
Z21 Series is a medium-duty, clutch-shift PTO for Ram TorqueFlite HD/ZF PowerLine and PACCAR TX-8 transmissions
