SPROCKET 21T #50 / 25T #60 Chain. 21T is 4.50"OD. 25T is 6.37" OD. 1.34"ID x 21 splines. 240 / 340 / 440 SERIES (MODELS A / C / E / EIII / F / G) CORN HEADER
SPROCKET, 13T #2050.
1.25"ID x 5.25"OD x 1.50" wide at hub.
Tapped for set screw.
Cross drilled for pin/bolt .25"ID.
New old stock OEM 71130647.
E COMBINE / E ENGINE crank, L.H. (13 tooth)