The larger .625″ stem is found in most tractors between about 35hp and 200hp. It is also the most common size of air/water valve and will replace them in fluid filled tires. Other large equipment like dump trucks, loaders, backhoes, and many heavier trailers to include many horse trailers and equipment trailers will carry a .625″ stem. | Just about everything else will carry the .453″ stem. Smaller compact tractors, just about all mowers whether ride on or zero turn, almost all ATVs, UTVs and side by sides (SxS) will run a .453″ stem. Most pull behind equipment on wheels whether it be a farm implement, a cement mixer, a wood splitter or the majority of smaller trailers like landscape and some dump trailers will use a .453″. |