Part number 24T40066 is a genuine Muncie snap ring, identified in Muncie Power Products’ service parts documentation (SP10-02.pdf, item 15) for the 8405/6A Series Power Take-Off. The 8405/6A Series PTO features a ductile iron housing, integral air shift, and an integral 8-bolt mounting pad, with SAE “B” or SAE “B-B” 2- or 4-bolt pump mounting flange. This snap ring is a precision internal service component for that assembly. Call us to confirm this part fits your specific PTO configuration before ordering.FeaturesGenuine Muncie Power Products snap ringPart number 24T40066, listed as item 15 in Muncie service parts document SP10-02.pdfDesigned for the Muncie 8405/6A Series PTO assemblyThe 8405/6A Series uses a ductile iron housing with integral air shiftSAE “B” or SAE “B-B” pump mounting flange configuration on host PTOCall Pro Gear and Transmission to confirm application fitUsed in these Muncie PTO models8405 Series8406A Series