This Cap Latches on the Outside of the Filter Neck. Not the Inside Please check Fitment careful. Please make sure you need a cap that Latches on the Outside. Locking Tabs Are 2 3/4th In Apart. Fuel Cap 1876534M1 . Please check that this matches. Fits Massey Ferguson 35 Diesel Tractor Serial Number 209079-233722, 35UK, 135 Diesel, 135UK, 231, 240, 250, 20 Diesel Serial Number 9A196065-9A196065, 20 Gas Tractor Serial Number 9A84538 >, 20D, 20E, 20F, 30E, 30H, 40E, 40 Tractor Serial Number 9A196065-9A205691
