Hella 7.22166.66.0 Secondary Air Injection Pump

The Hella 7.22166.66.0 is a secondary air injection pump designed specifically for BMW vehicles. This electrically-operated emissions control component is manufactured by Pierburg, a leading OEM supplier known for high-quality engine management and emissions systems.

Key Features:

• 12-volt electric operation for reliable performance
• OEM-quality construction meeting original equipment specifications
• Direct replacement for BMW part number 11721433959
• Essential component of the vehicle's emissions control system
• Helps reduce cold-start emissions by injecting fresh air into the exhaust system

The secondary air pump injects additional oxygen into the exhaust stream during engine warm-up, allowing the catalytic converter to operate more efficiently and reduce harmful emissions. This component is crucial for maintaining proper emissions compliance and passing emissions testing. Pierburg's expertise in mixture formation, fuel supply, and emission control ensures this pump delivers the durability and precision required for modern emissions systems.