RuggedMade hydraulic log splitter cylinders. 4 - 5 inch ID cylinders, with 24 and 30 inch rods. The perfect upgrade for that tired, leaky cylinder on your old splitter, or get your project off on the right foot and choose one of our wood splitter cylinders for your new build. We've made your choice easy by giving you all the dimensions you need. Still not sure which one is right for you? Contact us and our experts will be glad to help!