Upgrade your engine bay with this premium Hex Socket Thermostat Cover Bolt Set, crafted from marine-grade stainless steel for superior corrosion resistance and long-lasting durability—perfect for both daily drivers and high-performance builds.
📦 Kit Includes:
• 2 Stainless Steel Hex Socket Bolts (for Thermostat Housing Cover)
• 2 Stainless Steel Washers
🔁 Replaces OEM Part Number: 9979-40-825 (x2)
Why Choose This Kit?
🛡️ Marine-Grade Stainless Steel
Built to resist rust and corrosion—even in the toughest environments.
🔧 Precision Fit
Designed for a clean, secure installation on your Mazda Miata’s thermostat housing.
🧰 Easy Installation
Hex socket heads offer easier torque control and a cleaner look than factory bolts.
✨ Complete the Look:
Pair with a new thermostat housing cover for a refreshed engine bay:
• NAB-7151 (for 1.8L engines)
• NA1-7151 (for 1.6L engines)