Essex Caliper Stud Kit For Porsche - 103mm Length. Sold per axle.

• More durable caliper fastening solution vs. constantly replacing OE Porsche single-use bolts
• Makes caliper removal and re-installation easier during brake pad swaps, replacements, etc.
• Reduces risk of stripping the aluminum upright from repeated threading of OE caliper bolts
• Heavy-duty shank design maintains full diameter across the length of the stud
• Studs are made of nickel chromoly steel with rolled threads for superior strength compared to cut threads
• Tightens via 5mm internal hex/allen key reducing risk of thread damage during installation vs. other kits
• No extra sleeves are required when used with caliper relocation spacers (as in our Essex 2-piece Competition Disc upgrades)
• Complete axle kit includes 4 studs, 4 self-locking ARP 12-point nuts, 4 washers, and thread locking compound

***Note: If you are running our 350mm Essex 2-piece Competition Discs with the included caliper spacers and longer bolts, you will need to run the longer 117mm Stud Kit # 13.04.50003 instead. The Disc Kits requiring this change would be 13.01.20021, 13.01.20034, 13.01.20036, and 13.01.20039 purchased prior to December 2025. From December 2025 forward, those kits include the 117mm studs as standard, instead of longer caliper bolts. If you are unsure or have additional questions, please contact our Sales team for assistance.