11727571589 Secondary Smog Air Pump Emission Control for BMW E46 E60 E64 E53

Product Overview

This aftermarket replacement secondary smog air pump is intended for the listed BMW applications and references part number 11727571589. A secondary air pump delivers air into the exhaust stream during cold starts to help the emission control system operate as designed. It is supplied as an aftermarket replacement part for the corresponding component.

Key Features & Performance

• Functions as part of the secondary air injection system, adding air to the exhaust during cold-start warm-up
• Supports the emission control system in its normal operating role
• Cross-references part number 11727571589 for comparison with the existing unit
• Intended for the listed BMW E46, E60, E64, and E53 applications
• Used when servicing or replacing the corresponding secondary air pump

Fitment & Compatibility

• for BMW E46 applications
• for BMW E60 applications
• for BMW E64 applications
• for BMW E53 applications

Common Uses

• Replacing a worn, failed, or malfunctioning secondary air pump
• Routine servicing of the secondary air injection and emission control system
• Restoring the normal function of the secondary air system after the original component has failed

Technical Specifications

• Product Type: Secondary Smog Air Pump
• Part Number: 11727571589
• Model Application(s): BMW E46, E60, E64, E53
• General Application: Emission control system

Frequently Asked Questions

Q: What does a secondary smog air pump do? A: It delivers air into the exhaust stream during cold starts to support the emission control system as it warms up.

Q: How should fitment be verified? A: Compare the complete existing part number and the complete BMW model designation against the information supplied before purchase.

This is an aftermarket replacement part and is not represented as genuine or original equipment. Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number, model year, or existing part number. Verify fitment before purchase.