ARP Wheel Stud Kit 2.5in Length 5 Pack
Fits Most Subaru Models
100-7729
Overview:
The ARP Wheel Stud Kit features high-strength, heat-treated 8740 chrome-moly steel studs designed to replace factory wheel studs on most Subaru models. Engineered for motorsport applications such as autocross, track days, and drag racing, these studs provide superior durability and reliability under extreme conditions. Whether you’re upgrading your wheels or running slip-on spacers, these extended-length studs ensure a secure fit and enhanced safety for your vehicle.
With a tensile strength of 200,000 psi, ARP studs are built to withstand the intense acceleration shock loads and lateral forces experienced during competitive driving. Their cadmium plating offers additional corrosion resistance, making them a long-lasting upgrade for Subaru enthusiasts seeking improved performance and peace of mind.
Key Features:
These ARP wheel studs deliver exceptional strength and precision engineering to meet the demands of performance driving:
- Constructed from heat-treated 8740 chrome-moly steel for maximum tensile strength (200,000 psi)
- Cadmium plated for enhanced corrosion resistance and durability
- Extended length of approximately 2.5 inches (more than 3/4" longer than OEM studs) to accommodate slip-on spacers over 5mm thick
- Thread size: M12 x 1.25, compatible with most Subaru wheel hubs
- Knurl diameter of 0.565" ensures a secure fit in the hub
- Designed to handle high shear and elongation forces encountered in racing environments
- Precision manufactured to fit both cast iron/steel and aluminum hubs with appropriate drill sizes
- Sold in packs of 5 studs for partial wheel replacement or upgrades
Construction & Design:
ARP wheel studs are crafted from premium 8740 chrome-moly steel, a material known for its outstanding strength and toughness. The heat treatment process enhances the metal’s mechanical properties, allowing these studs to endure the rigorous stresses of motorsport use without failure. The studs feature a knurled section that locks firmly into the hub, preventing rotation and ensuring consistent torque retention.
The cadmium plating not only protects against rust and corrosion but also provides a smooth surface finish that facilitates easy installation and removal. The extended length design is critical when using wheel spacers thicker than 5mm, ensuring that lug nuts can fully engage the threads for safe and reliable wheel mounting.
Installation & Fitment:
This ARP Wheel Stud Kit is designed to fit most Subaru models, making it a versatile upgrade for a wide range of vehicles. Installation requires removal of the factory studs and pressing in the ARP studs into the wheel hub. Due to the extended length, these studs are essential when running slip-on spacers exceeding 5mm thickness to maintain proper thread engagement.
Note that nuts are not included with this kit and must be sourced separately. Proper tools and techniques are recommended for installation to ensure safety and optimal performance.
- Fits most Subaru wheel hubs with M12 x 1.25 thread pitch
- Compatible with cast iron, steel, and aluminum hubs (requires appropriate drill size for hub hole)
- Recommended for use with slip-on spacers thicker than 5mm
- No special tuning or modifications required beyond stud replacement and spacer installation
What's Included:
- Five (5) ARP heat-treated 8740 chrome-moly wheel studs, 2.5 inches in length
Ideal For:
This wheel stud kit is ideal for Subaru owners who participate in motorsports or who have upgraded their wheels with spacers and require longer studs for safe installation. It is well suited for autocross, track, and drag racing enthusiasts who demand high strength and reliability from their wheel hardware. Additionally, it benefits anyone looking to replace worn or damaged factory studs with a premium aftermarket option.
