Pierburg 7.00018.52.0 Secondary Air Injection Control Valve

Pierburg Secondary Air Injection Valve for Porsche

Pierburg Secondary Air Injection Control Valve 7.00018.52.0 is a pneumatic diaphragm valve for the air injection system. It routes fresh air into the exhaust stream during cold starts to help reduce emissions and support smoother engine operation.

Built as Genuine OE from HELLA, this valve is made for OE-grade fit and plug-and-play service on select Porsche 911 and Porsche Macan applications. If you need a Porsche 911 secondary air injection control valve or a Porsche Macan air injection valve replacement, 7.00018.52.0 is the direct OE-style service part to check.

Key Features

• Pneumatic operating mode for controlled secondary air delivery
• Diaphragm valve design for emission control system service
• Genuine OE from HELLA for OE-style fit and function
• Supports faster cold-start emissions cleanup
• Part number 7.00018.52.0 for accurate ordering and lookup

Product Details

Pierburg 7.00018.52.0 is a secondary air injection control valve used in the emission control system to send fresh air to the exhaust during startup. That airflow helps the engine reach cleaner operating conditions sooner, which is especially important on Porsche 911 and Porsche Macan models equipped with the listed OE configuration. The valve type is diaphragm, and the operating mode is pneumatic, matching the system requirements for the covered applications.

This part cross-references V45-66-0003 for the same application. The part number 7.00018.52.0 also aligns with OE reference 99711320371 in the listed fitments.

Vehicle Fitment

• Fits 2018-2019 Porsche 911, N/A — With OE No. 99711320371; Genuine OE from HELLA
• Fits 2014-2016 Porsche 911, N/A — With OE No. 99711320371; Genuine OE from HELLA
• Fits 2015-2018 Porsche Macan, N/A — Diaphragm Valve - Pneumatic; Genuine OE from HELLA
• Fits 2017 Porsche 911, N/A — Diaphragm Valve - Pneumatic; Genuine OE from HELLA
• Fits 2007-2011 Porsche 911, N/A — Diaphragm Valve - Pneumatic; Genuine OE from HELLA

What It Helps Address

• Delayed or inefficient cold-start emissions cleanup
• Faults related to secondary air injection valve operation
• Rougher startup behavior tied to emission system airflow issues
• Incorrect exhaust air routing during warm-up
• OE replacement needs for Porsche 911 and Porsche Macan emission control service

Installation Notes

Confirm the OE number, valve type, and pneumatic configuration before installation. Verify the vehicle’s emission control layout against the listed fitment for your Porsche 911 or Porsche Macan, and compare the existing valve to part number 7.00018.52.0 before replacement. Professional installation is recommended for accurate diagnosis and system verification.

Quality Assurance

Genuine OE from HELLA and Pierburg engineering support OE-style fitment and application matching for the listed Porsche models. Technical Information Number: SI 0106-11.