Mazda Rotary 20B 12.7mm Stud Kit – 13B Cosmo Front Plate Strength Upgrade

Strengthen Your Mazda 20B Engine with our 12.7mm Stud Kit for the 13B Cosmo Front Plate. When pushing high power through your Mazda 20B engine, it’s crucial to maintain a solid foundation, especially under boost or high RPM. The factory stud kit can be inadequate in high-performance builds. This 12.7mm stud kit is engineered for those looking to maximize performance while maintaining the integrity of the engine sealing.

✨ Why Upgrade with the 12.7mm Stud Kit?

• Increased Strength: 12.7mm studs offer greater clamping force compared to factory studs, preventing lifting and improving sealing reliability.
• Engineered for Performance: Ideal for high-power builds, ensuring that your 13B Cosmo front plate stays sealed even under extreme conditions.
• Built for Durability: Manufactured from high-grade materials to handle the demands of boosted applications and prolonged engine longevity.
• Direct Fitment: Designed to fit Mazda 20B engines with the 13B Cosmo front plate for an easy and secure installation.

📦 Fitment:

• Compatible with Mazda 20B engines
• Specifically designed for 13B Cosmo front plate
• Perfect for boosted applications, turbocharged, and high-performance rotary builds

🔧 Installation Notes:

• Direct replacement of factory studs
• Engine builders should verify proper torque settings
• Recommended for builds requiring increased engine sealing and strength

🇦🇺 Proudly Made in Australia

All of our products are engineered and manufactured locally by Milton Engine Developments — a trusted name in rotary performance worldwide.

⏱️ Time-sensitive Build? Contact us prior to purchase to confirm turnaround times.
📩 Custom Requests? Don’t see the part you need? Contact us — we can create custom parts to order.