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

Secondary Smog Air Pump for BMW

This secondary smog air pump feeds fresh air into the exhaust stream during cold starts to speed catalyst warm-up, and it cross-references OEM part number 11727571589.

Overview

This secondary smog air pump is an emission control component that injects air into the exhaust manifold on startup to reduce cold-start emissions. It is made for owners of compatible BMW models needing to replace a failed or noisy air pump. The emission control air pump restores proper secondary air flow so the engine management system can complete its warm-up cycle.

Built For Performance

• Direct-fit replacement for the original secondary air pump position on supported models
• Housing and mounting points shaped to match the factory footprint
• Sealed electric motor design built for repeated cold-start duty cycles
• Inlet and outlet ports sized for the stock air hose connections
• Cross-referenced to OEM part number 11727571589 for easy verification

Fits These Machines

• for BMW E46 models with secondary air injection
• for BMW E60 models with secondary air injection
• for BMW E64 models with secondary air injection
• for BMW E53 models with secondary air injection

On-The-Job Use

• Replacing a seized or noisy secondary air pump during emissions repair
• Restoring cold-start air injection after a check engine light for secondary air flow
• Routine maintenance on higher-mileage BMW engines
• Preparing a vehicle for emissions inspection

Specs At A Glance

Good To Know

Q: Will this pump fix my secondary air flow code? A: It is the correct part to replace when the pump itself has failed, but codes can also come from a bad valve or hose. Scan the system first to confirm the pump is the cause.

Q: Is this an original BMW part? A: No, this is an aftermarket replacement cross-referenced to OEM number 11727571589. Confirm your vehicle's engine and emissions setup before ordering.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.