Rear Crankshaft Seal Fits John Deere Case Tractor Fits: John Deere- 70, 820 2-cyl, 830 2-cyl,1020, 1030, 1120, 1520, 1530, 1630, 2020, 2120, 2030, 2040, 2130, 2150, 2155, 2240, 2350, 2355, 2440, 2510, 2520, 2550, 2630, 2640, 2750, 2755, 2840, 2940, 2950, 4030, 4040, 4050 used as a rear crankshaft oil seal- Case- 400, 930 Comfort King, 700, 730, 740, 741, 742, 744, 770, 830, 840, 841, 870, 900, 930, 970, 1030, 1030 Comfort King, 1031, 1032, 1070, 1090, 1170, 1175, 1200TK, 1270, 1370, 2470, 2670 used as a rear crankshaft oil seal- Specifications 4.750" inside diameter 5.756" outside diameter 0.500" wide Replacement Numbers:Replaces PNs: John Deere- AR92893, AT22965, RE17831, RE44574, T20300, T22991- Case- O9709AB, A62050, A23085- the following Case gas, LP or diesel engines: 251, 267, 284, 301, 336, 377, 401, 451 and 504 cubic inch. Replaces O9709AB, A23085, A62050. All JJAgParts items have been hand selected by our team and are continuously monitored for Quality. Should a craftsmanship or fitment concern be identified, JJAgParts will work with you to stand behind our products. JJAgParts is an American owned and operated family business! Here at JJAgParts, we strive for customer satisfaction. If you are not satisfied with your order, please contact us so we can make it right. Note: OEM Part Numbers are for reference only and should be verified before purchase.