Standard Ignition AV77 Secondary Air Injection Pump Check Valve

Secondary Air Injection Check Valve for Volkswagen

Standard Ignition AV77 is a secondary air injection pump check valve built to OE exact grade standards for precise fit and function. It uses a round-to-flat connector shape, a 22 mm hose size, and a blade terminal type to match the original-style air cleaner check valve setup on select Volkswagen applications.

Compatible with 2005-2014 Volkswagen Jetta, 2006-2010 Volkswagen Beetle, 2010-2014 Volkswagen Golf, 2010-2013 Volkswagen Golf SportWagen, and 2012-2014 Volkswagen Passat, this valve supports the air injection system layout used on these vehicles. Standard Ignition AV77 is also a direct reference for OE-style replacement needs where the original valve has failed or no longer seals correctly.

• OE exact grade replacement for secondary air injection system service
• Round-to-flat connector shape for original-style electrical connection
• 22 mm hose size for proper air cleaner check valve fitment
• Blade terminal type for factory-style terminal interface
• Direct application coverage for select Volkswagen Beetle, Golf, Jetta, Golf SportWagen, and Passat models

Detailed Product Overview

This secondary air injection pump check valve helps control airflow in the emission control system by maintaining the intended direction of air movement through the air cleaner check valve circuit. Standard Ignition AV77 is built for OE exact grade replacement, making it a practical choice when servicing a Volkswagen Beetle, Volkswagen Golf, Volkswagen Jetta, Volkswagen Golf SportWagen, or Volkswagen Passat with the matching factory configuration. This part cross-references Dorman OE Solutions 911-139 for the same application.

Common Issues This Part May Address

• Check valve leakage in the secondary air injection circuit
• Incorrect airflow direction through the air cleaner check valve
• Emission control fault codes related to air injection performance
• Rough cold-start emissions behavior tied to a failing valve
• Vacuum or air routing problems caused by a worn OE-style valve

Installation Notes and Tips

Verify the connector shape, 22 mm hose size, and blade terminal layout against the original part before installation. Confirm vehicle-specific fitment by year and model, especially on 2005-2014 Volkswagen Jetta, 2006-2010 Volkswagen Beetle, 2010-2014 Volkswagen Golf, 2010-2013 Volkswagen Golf SportWagen, and 2012-2014 Volkswagen Passat applications. Inspect adjoining hoses and electrical terminals for wear or contamination before installing the replacement valve.

Quality Assurance

Standard Ignition supplies OE exact grade emission control components for direct replacement use. AV77 is built to match original-style specifications for the listed Volkswagen applications and support consistent serviceability in the secondary air injection system.