Tesla Performance Extended Wheel Studs — ARP 8740 Chromoly (M14 x 1.50)
~22 mm longer than stock • ARP 8740 chromoly • M14 x 1.50 thread • 0.625″ knurl dia.
Step up your Tesla’s wheel hardware with ARP extended wheel studs, built for serious performance and track use.
These premium studs are approximately 22 mm longer than stock, giving you the thread engagement you need for spacers, aftermarket wheels, and repeated wheel swaps—all while maintaining ARP’s race-proven strength and durability.
Why factory wheel studs fall short
- Factory-length studs can offer limited thread engagement when using spacers or thicker aftermarket wheels.
- Repeated wheel changes (track days, seasonal tire swaps) can lead to stretched or damaged threads.
- High torque and lateral loads from performance driving can stress OEM hardware beyond its intended margin.
- Once a stud’s threads are compromised, lug nut torque accuracy and safety can no longer be trusted.
Our solution — ARP extended studs for Tesla hubs
- Extended length (~22 mm over stock) for improved thread engagement with spacers and aftermarket wheels.
- Heat-treated 8740 chromoly steel for extreme strength and fatigue resistance.
- Cadmium plated for superior corrosion protection and smooth, repeatable torque characteristics.
- 200,000 psi tensile strength (race-grade fastener performance for high load, high grip EVs).
- Precision knurl diameter for a secure press fit in compatible Tesla hubs (see hole size specs below).
- Track-proven ARP design capable of handling severe acceleration, braking, and lateral loads.
At-a-glance specs
| Application |
Extended wheel studs for Tesla performance and track setups (M14 x 1.50 hubs) |
| Material |
Heat-treated 8740 chromoly steel, cadmium plated |
| Tensile strength |
Approx. 200,000 psi (professional motorsport grade) |
| Thread size |
M14 x 1.50 |
| Overall length (UHL) |
2.700″ under-head length (approx. 22 mm longer than stock Tesla studs) |
| Knurl diameter |
0.625″ knurl diameter, 0.350″ knurl length |
| Nose length |
0.435″ nose length for easier wheel and nut engagement |
| Hub hole size — steel/cast hub |
0.609″–0.619″ wheel stud hole size; 39/64″ (0.609″) drill bit (actual) |
| Hub hole size — aluminum hub |
0.609″–0.615″ wheel stud hole size; 39/64″ (0.609″) drill bit (actual) |
Service & coverage
These ARP extended wheel studs are intended for Tesla hubs using M14 x 1.50 studs where a 0.625″ knurl and the hole sizes listed above are appropriate. They are ideal for cars that see performance driving, wheel spacers, or frequent wheel changes. Always verify your hub material, existing hole size, and stud dimensions before installation or machining.
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Installation tip: Press wheel studs into the hub using a proper shop press whenever possible— avoid drawing them in with a lug nut, which can twist the stud and distort the knurl fit. After installation, torque your lug nuts in a star pattern to Tesla specs and re-check torque after the first heat cycle or track session.
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Unsure about hub sizing or fitment?
Contact the Gruber Motors team with your Tesla model, year, and hub measurements. We’ll help you confirm compatibility and talk through best practices for installation on performance and track-driven EVs.
