Mazda Rotary 13B Stud Kit 10mm

Secure Your Build. Don’t Trust Factory Bolts.

If you're building or rebuilding a Mazda 13B rotary engine, factory bolts just don’t cut it under pressure — especially at high RPM, boost, or track use. Factory threads fatigue. Torque specs drift. And failures get expensive fast.

Upgrade to Strength and Reliability

The 10mm Mazda 13B Stud Kit delivers increased clamping force, repeatable torque specs, and a stronger foundation for any high-performance or street build. Whether you're assembling a mild bridgeport or chasing power on E85, these studs lock your housings together with confidence — every time.

✅ Key Features:

• 10mm high-strength studs with rolled threads for maximum fatigue resistance
• Built-in Allen key hex socket for damage-free installation
• Includes matching hardened washers and 12-point nuts
• Designed for all Mazda 13B rotary engines
• Ideal for NA, turbo, bridgeport, and race applications
• Improves serviceability — torque accurately and reuse with confidence

What’s Included:

• 12 x 10mm high-tensile studs (with internal hex)
• 12 x 12-point flange nuts

Note: Torque specs and install guide available on request.

🧩 Compatibility:

• All Mazda 13B Rotary Engines (NA, Turbo, RE, REW)
• RX-4 (LA2/SA2 – 13B option, 1974–1978)
• RX-5 / Cosmo AP (CD platform – 13B option, 1975–1981)
• RX-7 Series 1–3 (SA22C, FB – 1978–1985)
• RX-7 Series 4–5 (FC3S – 1986–1991, NA & Turbo)
• RX-7 Series 6–8 (FD3S – 1992–2002, 13B-REW twin turbo)
• Mazda Cosmo JC (13B-RE sequential twin turbo – 1990–1996)
• Mazda REPU (Rotary Engine Pickup – 1974–1977)
• 13B Bridgeport / Peripheral Port race builds
• Fits global models: USDM, JDM, ADM, UKDM

🛠️ Installation Notes:

• Studs install finger-tight into housing plates
• Allen key hex allows easy, non-damaging fitment
• Use ARP-style lube or moly grease for accurate torque
• Recommended torque: [Insert torque value here]

🇦🇺 Proudly Australian Made by Milton Engine Developments

This stud kit is precision-machined in Australia by Milton Engine Developments — trusted by rotary engine builders, tuners, and workshops nationwide.

In Stock – Ships from Adelaide

Order today and secure your next 13B build the right way.
📦 Time-critical project? Contact us before checkout to confirm stock availability.

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