A single stripped or broken wheel stud is a safety issue you fix immediately -- not at the next campsite. This is the genuine Lippert replacement stud, sized and knurled exactly to spec for a secure press fit into compatible Lippert trailer hub assemblies. Get the right part the first time and get back on the road with confidence.
Wheel studs are a critical structural fastener -- they carry the clamping load that keeps your trailer wheel seated against the hub. When one snaps, strips, or corrodes beyond use, replacing it with the correct OEM-spec part is not optional. Lippert part number 121803 is the genuine replacement stud designed for this exact application, matching the thread pitch, stud length, and knurl diameter of the original factory hardware.
The 0.617" knurl diameter ensures the stud presses firmly and permanently into the hub bore, providing the interference fit needed to resist rotation under torque. The 1/2"-20 thread pitch is the standard for most light-to-medium trailer hub applications, and the 2" stud length provides adequate thread engagement for standard lug nuts and any wheel spacer configurations within specification.
Matches original factory specifications -- no guesswork on knurl size, thread pitch, or stud length.
0.617" knurl presses into the hub bore to lock the stud in place and resist rotation under lug nut torque.
Fine-thread pattern provides strong clamping force and is compatible with standard 1/2"-20 trailer lug nuts.
Provides adequate thread engagement for proper lug nut seating on compatible trailer wheel and hub assemblies.
Aftermarket studs vary in knurl diameter tolerance, which can result in a loose fit in the hub bore -- allowing the stud to spin under torque and making lug nut tightening impossible. Genuine Lippert studs are manufactured to the exact bore diameter of Lippert hub assemblies, ensuring the press fit is secure the first time without modification or adhesive workarounds.
Press-in wheel studs are typically installed by drawing the stud through the hub from the back using a stack of washers and the lug nut itself -- threading the nut onto the stud and tightening until the knurled shank is fully seated flush with or just below the hub flange face. A hydraulic press can also be used. Always verify the stud is fully seated before mounting the wheel. Torque lug nuts to the specification listed for your trailer axle hub (commonly 90-110 ft-lb for 1/2"-20 fasteners on trailer applications -- confirm against your hub documentation).
If the original stud failed due to the lug nut backing off and spinning the stud, inspect the hub bore for elongation or damage. A damaged bore may not retain a new press-in stud correctly. In cases of bore damage, hub replacement is recommended over stud replacement alone.
This listing is for one (1) replacement wheel stud. Most trailer hubs use 5 or 6 studs per hub. If multiple studs are damaged or if the hub has high mileage, replacing all studs on the affected hub at the same time is a common best practice to ensure uniform condition across all fastener positions.