Review on ⛽️ Stant OE Equivalent Fuel Cap: Precision-engineered for Optimal Performance by Josh Parson

Fits my 1963 Case 430 tractor. The outside diameter is not much larger than the diameter of the tank's filler neck (the cap that came on it was about an inch larger than the diameter). It fits snugly (the old cap was carelessly untied) and will hopefully keep fuel from spilling out when I'm working on a steep incline.