Standard Ignition AV71 Secondary Air Injection Pump Check Valve

Secondary Air Injection Check Valve for OE Fitment

Standard Ignition AV71 is a secondary air injection pump check valve built to OE exact standards for controlled airflow in the emission system. It uses a square connector shape, blade terminal type, and 1-inch (24 mm) hose sizing for a direct-style service replacement.

Key Features

• OE Exact grade type for factory-style fit and function
• Square connector shape for the specified electrical connection
• Blade terminal type for the listed application
• 1-inch hose size, also listed as 24 mm
• Standard Ignition AV71 for emission control service

Detailed Description

This secondary air injection pump check valve helps regulate airflow in the air injection system and is listed for select Buick Lucerne and Cadillac DTS applications. Standard Ignition AV71 is specified with OE Exact grading, making it a practical replacement when servicing the emission control system on 2006-2011 Buick Lucerne and 2006-2011 Cadillac DTS models with the listed air cleaner check valve configuration. This part cross-references ACDelco 12576045 for the same application.

What It Helps Address

• Check valve leakage in the secondary air injection system
• Airflow restriction affecting emission system operation
• Faults related to the air cleaner check valve circuit
• Service needs on Buick Lucerne and Cadillac DTS emission control systems
• Replacement of a worn or damaged AV71-style valve

Installation Notes and Tips

Verify the connector shape, terminal type, and hose size before installation. Confirm the vehicle uses the listed air cleaner check valve configuration and match the part number AV71 to the original component before service. For best results, inspect adjoining hoses and electrical connections for wear or contamination during replacement.

Quality Assurance

Standard Ignition parts are built for OE-style service applications, and AV71 is cataloged with exact-fit grading for the listed vehicles. Confirm fitment by year, make, model, and system configuration before installation.