Genuine Porsche 999 073 589 01 Exhaust Manifold Bolt M8 x 27mm OEM

The Genuine Porsche 999 073 589 01 is an OEM exhaust head bolt used to secure the exhaust manifold (header) to the engine block on select Porsche vehicles. Sized at M8 x 27mm, this bolt is manufactured to Porsche factory specifications and sourced directly from Porsche AG, ensuring precise fitment and long-term reliability under the high heat and vibration demands of the exhaust system.

Key Features:

• Genuine Porsche OEM part — manufactured to factory specifications
• M8 x 27mm bolt threading the exhaust manifold/header to the engine block
• Engineered to withstand extreme exhaust heat cycles and vibration
• Direct OEM replacement for proper fit and torque retention
• Sold individually — order the quantity required for your application

Exhaust manifold bolts are a common maintenance item on Porsche engines. Due to repeated heating and cooling cycles, these bolts can fatigue, corrode, or seize over time. Replacing them with genuine Porsche hardware during exhaust service or header installation ensures proper clamp load and a leak-free seal at the exhaust manifold.

Also referenced as: 999-073-589-01 | 999.073.589.01 | 99907358901