If your Honda Rancher 420 ATV is getting loose steering or uneven tire wear, this upper ball joint might be the fix. Fits Honda TRX420FM, FM1, FM2 Rancher 420 models from 2007 through 2014. Made by Caltric, part number BJ105-HHR. Replaces OEM numbers 51375-HP5-601 and 51355-HN0-A01. It's a bolt-on style ball joint (not press-in) for easier installation. Made from metal with a 3-month warranty. California Prop 65 warning applies. Weighs about 8 ounces. Brand new in packaging. These wear out over time especially if you ride hard trails or carry loads. Replacing wobbly ball joints restores tight steering and safety. Professional installation recommended if you're not comfortable with suspension work. Fits the lower ball joint position (listing says upper but details indicate lower - check your ATV). Great for ATV owners doing their own maintenance. Keep your Rancher riding smooth on the farm or trails!