Massey Ferguson Headlamp Inserts B1580 B1579 B6161 B6162 6.5" x 4" Rectangular Headlight Insert Fits MF 200 Series Tractors with rectangular lights. 6.5" x 4" Rectangular Headlight Insert Fits MF 3000 Series Tractors with rectangular lights. L.H. Headlight Insert Suits M.F. Tractors R.H. Headlight Insert Suits M.F. Tractors Confirm dimensions from the diagram below     B406 Adapter Cable - Fits 3 Spade Headlamps