John Deere Original Equipment Internal Oil Steel Seal - AW27453 The part specifications for AW27453: Part Number: AW27453 Part Name: Internal Oil Steel Seal Shaft Diameter(IN): 1.9685 Seal Outside Diameter(IN): 3.5433 Width(IN): 0.3937 Spring Type(ALPHA): GARTER Number of Lips(ALPHA): DUAL Seal Material(ALPHA): Finish(ALPHA): This AW27453 Internal Oil Steel Seal fits these models: 1018 Rotary Cutter 1418 Rotary Cutter 717 Rotary Cutter E12 Rotary Cutter E15 Rotary Cutter FC12E Flex Wing Rotary Cutter FC15E Flex Wing Rotary Cutter HX10 Rotary Cutter HX14 Rotary Cutter MX15 Rotary Cutter MX5, MX6 and MX7 Rotary Cutters MX8 and MX10 Rotary Cutters RC10M Rotary Cutter RC10R Rotary Cutter RC14R Rotary Cutter RC5M Rotary Cutter RC6M Rotary Cutter RC7M Rotary Cutter RC8M Rotary Cutter This is an OEM John Deere part.