H163131 Coarse Tooth Double Sickle Section Fits JD 900 700 600 Series HeadersNew Aftermarket Replacement Coarse Tooth Double Sickle Section Fits John Deere Combine Header Models: RD45F, RD40F, HD50R, HD50F, HD45R, HD45F, HD40R, HD40F, HD35R, HD35F, 936D, 930D, 925D, 745FD, 740FD, 740D, 735FD, 735D, 730FD, 730D, 725D, 645FD, 640FD, 640D, 635FD, 635F, 635D, 630R, 630FD, 630F, 630D, 625R, 625F, 625D, 622F, 620R, 620F Specifications: Qty. 1 Fastener Size: M6 1. 0 x 16. 25mm Hole Spacing: 3" Length: 3" Serration: Top Serrated Tooth