John Deere Original Equipment Knifehead Ring - H157812

John Deere Original Equipment Knifehead Ring - H157812. Specs: Inside Diameter(IN): 2.04. Outside Diameter(IN): 2.40. Length(IN): 0.78. Material (ALPHA): POM. Fits the Following John Deere Models:  614R, 615R, 616, 616F, 616R, 618, 618F, 618PF, 618R, 620, 620F, 620PF, 620R, 622, 622F, 622PF, 622R, 622X, 625D, 625F, 625PF, 625R, 625X, 630, 630D, 630F, 630FD, 630PF, 630R, 630X, 635, 635D, 635F, 635FD, 635PF, 635R, 635X, 640D, 640FD, 640X, 645FD, 722PF, 722X, 725D, 725PF, 725X, 730D, 730FD, 730PF, 730X, 735D, 735FD, 735PF, 735X, 740D, 740FD, 740PF, 740X, 745FD, 913, 915F, 915R, 918, 918F, 918R, 920F, 920R, 922F, 922R, 924, 925, 925D, 925F, 925R, 930, 930D, 930F, 930R, 936D, 1450, 1550, D625, D630, D636, FA 16, FA 18, FA 20, FA 22, FA 25, FA 30, FA 35, HD35F, HD35R, HD35X, HD40F, HD40R, HD40X, HD45F, HD45R, HD45X, HD50F, HD50R, HDF 35, HDF 40, HDF 45, HDF 50, HDR 35, HDR 40, HDR 45, HDR 50, HDX 35, HDX 40, HDX 45, RA 16, RA 18, RA 20, RA 22, RA 25, RA 30, RA 35, RD30F, RD35F, RD40F, RD45F, RDF 30, RDF 35, RDF 40, RDF 45, XA 22, XA 25, XA 30, XA 35, XA 40. This is a OEM John Deere Part.