One New Aftermarket Replacement Reverse Idler Sprocket that Fits Case IH Combine Models 1644, 1660, 1666, 1680, 1688, 2144, 2166, 2188, 2344 s/n -JJC0174399, 2366 s/n -JJC0253999 All w/Rock Trap.
Also fits Tractor Model 640 s/n JJC0034705.
1.312″ Bore
Replaces Part Numbers COG10-0012, 1321531C93.
NC