ARP Subaru WRX/STi Wheel Studs Kit (5 Studs/One Wheel)

This ARP performance fastener, stud, bolt, tool, or assembly is the Subaru WRX/STi Wheel Studs Kit (5 Studs/One Wheel) for 2009-2010 Subaru Impreza. Confirm the exact engine or vehicle application, thread size, length, material, strength series, included quantity, installation lubricant, tightening sequence, and current ARP torque specification before ordering.

Key Features

• ARP 8740 Chromoly Construction: Heat treated to 190000 PSI tensile strength for extreme load handling and fatigue resistance.
• M12x1.25 x 2.160 Inch Length: Application specific dimensions ensure proper fit and full thread engagement on Impreza hubs.
• Yes ARP 100-7716 matches M12x1.25 hubs on all listed 1993-2012 Impreza WRX STI models with 2.160 inch overall length.
• Forged 8740 chromoly steel heat treated to ARP specs delivering 190000 PSI tensile strength and rolled threads for superior fatigue life.
• Rolled Threads: Increases thread shear strength by 1000 percent over cut threads while reducing hub damage during installation.
• Extended Design: Allows use of wider wheels and spacers with secure lug nut seating.

Fitment

Specifications

What’s Included

One new ARP wheel stud in the exact configuration and quantity identified by this listing. Brackets, wiring, air lines, fittings, switches, fasteners, fitting kits, fluids, covers, and accessories are included only when expressly stated for this exact part.

About ARP

Automotive Racing Products manufactures high-performance studs, bolts, nuts, washers, wheel hardware, assembly tools, and installation lubricants for engine, drivetrain, chassis, and racing applications. Thread dimensions, material, preload method, lubricant, torque, and included quantity remain exact-part specific.

Important Disclosures

• California Proposition 65 warning applies. Review the current manufacturer warning before handling or installation.

Related Parts

• Shop all ARP products
• ARP 99+ Subaru EJ Series Phase 2 SOHC Head Stud Kit
• ARP Subaru EJ Series DOHC Custom Age Head Stud Kit
• ARP Subaru EJ Series Press Fit Rod Bolt Kit

Frequently Asked Questions

How do I confirm the Subaru WRX/STi Wheel Studs Kit (5 Studs/One Wheel) fits my application?
Match the exact engine family or vehicle, component location, thread diameter and pitch, under-head length, material, strength series, and every current ARP application note.

Can I reuse the factory torque value with this ARP hardware?
Not automatically. Use ARP’s current instructions for the exact part, material, lubricant, tightening sequence, and preload method. Factory torque values may be based on different hardware and friction.

What is included with this ARP kit?
Only the studs, bolts, nuts, washers, lubricant, and tools expressly listed for this exact part number are included. Verify the required quantity before disassembly.

Installation Instructions

1. Confirm ARP part number 100-7716, the complete application, and every required supporting component before beginning work.
2. Clean and inspect all mating threads and components, then verify thread engagement, length, washers, nuts, lubricant, and required preparation before assembly.
3. Follow ARP’s current tightening sequence, lubricant instructions, torque or stretch method, and any retorque procedure for this exact part.
4. Verify clearance, preload, fastener seating, and normal component operation before returning the vehicle or engine to service.