JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/ui-lightness/jquery-ui.css">
<h2>11/400-5 4 PLY EXPERIMENTAL TIRE AIRCRAFT TIRE</h2>

JavaScript

$('h2:contains(" PLY ")').html( function(i,htm) {
     return htm.replace(" PLY ", " PLY<br/>");
});