Dorman 306-038 Secondary Air Injection Pump

Overview of the Dorman Secondary Air Injection Pump

The Dorman 306-038 secondary air injection pump is designed specifically for BMW 525i, 528i, and 530i models. This emission control component helps maintain optimal engine performance by supporting the air injection system without including a pulley or mounting hardware.

• Compatible with BMW 525i, 528i, and 530i models
• Part number 306-038 for precise identification
• Secondary air injection pump included in the package
• No pulley included
• No mounting hardware included

Product Details and Attributes

This Dorman secondary air injection pump (part number 306-038) is engineered to replace the original pump in the air injection system of select BMW vehicles. The package contains one secondary air injection pump only, without a pulley or mounting hardware, allowing for flexibility if you already have compatible components or prefer to reuse existing parts. This pump supports the emission control system by injecting air into the exhaust stream to reduce harmful emissions during cold starts.

Applications and Common Issues Addressed

• Restores proper function of the secondary air injection system in BMW 525i, 528i, and 530i
• Helps resolve check engine light triggers related to air injection pump failure
• Addresses rough idling or poor engine performance caused by faulty air injection
• Reduces emissions by ensuring correct air flow during cold engine operation
• Prevents potential damage to catalytic converters due to improper air injection

Installation Notes and Tips

When installing the Dorman 306-038 secondary air injection pump, verify that your vehicle’s existing pulley and mounting hardware are in good condition, as these are not included with the pump. Proper alignment and secure mounting are essential for optimal pump operation. It is recommended to inspect related hoses and electrical connections during installation to ensure full system functionality.

Quality Assurance and Warranty Information

Dorman parts are manufactured to meet or exceed OEM standards for fit, form, and function. The 306-038 secondary air injection pump undergoes rigorous quality control to ensure reliable performance in BMW 525i, 528i, and 530i models. Warranty coverage details can be obtained from the product documentation or Dorman’s official resources.