Coolant Drain Plug: Fits John Deere A B G H 50 60 70 530 630 730 830 620 720 520One New Aftermarket Coolant Drain Plug Fits John Deere Tractor Models: A, AH, AI, AN, ANH, AO, AOS, AR, AW, AWH, B, BI, BN, BNH, BO, BR, BW, BW40, BWH, BWH40, G, GH, GM, GN, GW, H, HN, HNH, HW, HWH, 50, 60, 70, 520, 530, 620, 630, 70D, 720, 720D, 730, 730D, 820 2 cylinder, 830 2 cylinder, 840 (used as a coolant drain plug; Styled and Unstyled) Tech Info: This drain plug is . The dimensions are 3 4" NPT, 1 1 4" overall length, 1 1 16" hex head.