Genuine Lippert replacement press-in trailer wheel stud with 1/2"-20 threads, 2" stud length, and 0.617" knurl. Replaces a damaged, stripped, broken, or worn wheel stud in compatible trailer hub assemblies.
The Lippert 121803 is a replacement press-in wheel stud for compatible trailer hub assemblies. It is designed to replace an original hub stud when the threads are stripped, the stud is bent, the stud has broken, or the wheel hardware no longer tightens securely.
This replacement stud uses fine 1/2"-20 threads and a 0.617" knurl for press-in installation into a matching trailer hub. Matching the thread size, stud length, and knurl diameter is important for proper fit and safe wheel attachment.
Replacement trailer hub stud for compatible press-in wheel stud applications
Fine thread wheel stud designed for matching 1/2"-20 trailer lug nuts
2" length from underhead to end for compatible trailer hub assemblies
Knurled press-fit section helps secure the stud in the hub
Wheel studs are not universal by thread size alone. Before ordering, confirm the thread size, stud length, knurl diameter, and hub application match the stud being replaced. This listing is for the wheel stud only. Lug nuts, hub assembly, brake drum, wheel, bearings, and installation tools are not included.
This stud style is used on compatible trailer hub assemblies requiring a 1/2"-20 press-in wheel stud with a 0.617" knurl. If the stud being replaced has a different knurl diameter, shoulder length, thread size, or overall length, use the matching replacement stud for that hub.
1. Secure Trailer: Park on a level surface, chock the wheels, and safely support the trailer before removing wheel components. 2. Remove Damaged Stud: Remove the wheel and access the hub or drum so the damaged press-in stud can be removed. 3. Inspect Hub Hole: Check the stud hole for elongation, cracking, or damage before installing the replacement stud. 4. Press In New Stud: Install the replacement wheel stud squarely into the hub using proper press-in wheel stud service methods. 5. Torque Wheel Hardware: Reinstall the wheel and torque lug nuts to the trailer or hub manufacturer’s specification using the proper tightening pattern. Wheel stud replacement affects trailer wheel security. Installation should be performed by a qualified trailer or RV technician if proper tools and procedures are not available.
• (1) Lippert Press-In Trailer Wheel Stud
Lippert Customer Support: Phone: 432-LIPPERT (432-547-7378) Website: lippert.com For fitment help, compare the original wheel stud measurements and hub application before ordering.