Standard Ignition AIP21 Secondary Air Injection Pump

Reliable Secondary Air Injection Pump for Buick and Pontiac Models

The Standard Ignition Secondary Air Injection Pump (Part Number AIP21) is designed to support emission control systems in select Buick and Pontiac vehicles. Engineered with precise connector and hose specifications, this pump ensures proper air injection to reduce harmful emissions effectively.

• Compatible with Buick Allure, LaCrosse, and Pontiac Grand Prix models
• Features a female oval connector with one connection point
• Includes two hose connectors sized at 1 inch and 3/4 inch
• Equipped with two male blade terminals for secure electrical connections
• Contains a durable pump diaphragm for consistent performance

Detailed Product Features and Specifications

The Standard Ignition AIP21 secondary air injection pump is built to meet the specific requirements of emission control systems in Buick Allure, LaCrosse, and Pontiac Grand Prix vehicles. It features a female oval connector designed for a single connection, ensuring compatibility with factory wiring harnesses. The pump includes two hose connectors sized at 1 inch and 3/4 inch, accommodating the necessary air flow for the secondary air injection system. Electrical connections are secured via two male blade terminals, providing reliable power delivery to the pump diaphragm inside. This diaphragm is critical for maintaining consistent air injection pressure, which helps reduce exhaust emissions during cold engine starts.

Purpose and Common Applications

• Supports the secondary air injection system to reduce emissions
• Helps prevent check engine light triggers related to air injection faults
• Addresses issues with rough idling caused by faulty air injection pumps
• Improves cold start emissions performance in Buick and Pontiac vehicles
• Replaces worn or damaged pumps to restore proper emission control function

Installation Notes and Tips

When installing the Standard Ignition AIP21 pump, verify connector orientation and ensure the female oval connector aligns correctly with the vehicle harness. Confirm hose sizes match the 1 inch and 3/4 inch connectors to prevent leaks. Check that the two male blade terminals are securely connected to avoid electrical faults. It is recommended to inspect related hoses and wiring for wear or damage during replacement to maintain system integrity.

Quality Assurance and Warranty Information

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The AIP21 secondary air injection pump undergoes rigorous quality control to ensure durability and reliable operation in Buick Allure, LaCrosse, and Pontiac Grand Prix models. Please refer to Standard Ignition's warranty policy for coverage details.