Genuine PY90-40-584A Mazda Turbo Exhaust Manifold Flange Stud

The Genuine Mazda PY90-40-584A is an OEM replacement turbo exhaust manifold flange stud designed to secure the exhaust manifold and turbocharger assembly on Mazda vehicles equipped with the 2.5L turbocharged engine. This stud provides a precise, factory-correct fit as a direct replacement, ensuring a leak-free seal between the exhaust manifold and the turbocharger mounting points.

Key Features:

• Genuine OEM Mazda part — manufactured to exact factory specifications
• Designed for use with the 2.5L turbocharged engine turbocharger and brackets
• Inner upper position stud for the exhaust manifold assembly
• Direct replacement for OEM part number PY90-40-584
• Backed by Mazda's manufacturer parts warranty

Part Information:

• Manufacturer Part Number: PY90-40-584A
• Supersedes / Replaces: PY90-40-584, PY9040584
• Position: Inner Upper

Replacing worn or damaged exhaust manifold studs with a genuine OEM part helps maintain proper torque retention and prevents exhaust leaks at the turbo-to-manifold junction. This stud may also be included as part of a complete exhaust manifold or manifold-with-converter assembly replacement.