Air Injection Pumps & Components
- Pierburg®Secondary Air Injection Pump (7.00216.06.0)Secondary Air Injection Pump by Pierburg®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...High quality at an affordable priceExpertly made from premium materials$390.96
- Pierburg®Secondary Air Injection Pump (7.21851.32.0)Secondary Air Injection Pump by Pierburg®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...High quality at an affordable priceExpertly made from premium materials$333.32
- Pierburg®Secondary Air Injection Pump (7.21852.78.0)Secondary Air Injection Pump by Pierburg®. This product is made of high-quality components to meet and exceed strict quality requirements. Designed using state-of-the-art technology and with customers in mind. It will meet your needs...High quality at an affordable priceExpertly made from premium materials$309.73
- URO Parts®New Secondary Air Injection Pump (11727557903)New Secondary Air Injection Pump (11727557903) by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$213.82
- URO Parts®New Secondary Air Injection Pump (11721433959)New Secondary Air Injection Pump by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust system work as...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$144.01
- URO Parts®New Secondary Air Injection Pump (11727571589)New Secondary Air Injection Pump (11727571589) by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$156.92
- URO Parts®New Secondary Air Injection Pump (1270558)New Secondary Air Injection Pump by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust system work as...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$196.75
- URO Parts®New Secondary Air Injection Pump (11721433818)New Secondary Air Injection Pump by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust system work as...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$184.77
- URO Parts®New Secondary Air Injection Pump (12791957)New Secondary Air Injection Pump by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust system work as...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$145.72
- URO Parts®New Secondary Air Injection Pump (0001407085)New Secondary Air Injection Pump (0001407085) by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$225.13
- URO Parts®New Secondary Air Injection Pump (0001405185)New Secondary Air Injection Pump (0001405185) by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$99.43
- URO Parts®New Secondary Air Injection Pump (06A959253E)New Secondary Air Injection Pump (06A959253E) by URO Parts®. Position: Secondary. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$100.91
- URO Parts®Secondary Air Injection Pump (078906601F)Secondary Air Injection Pump by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust system work as it...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$151.29
- URO Parts®Secondary Air Injection Pump (022959253A)Secondary Air Injection Pump by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust system work as it...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$92.57
- URO Parts®Secondary Air Injection Pump (11727571591)Secondary Air Injection Pump (11727571591) by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$123.07
- URO Parts®Secondary Air Injection Pump (95560510511)Secondary Air Injection Pump (95560510511) by URO Parts®. Position: Driver Side. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$184.97
- URO Parts®Secondary Air Injection Pump (11721437911)Secondary Air Injection Pump (11721437911) by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$120.17
- URO Parts®Secondary Air Injection Pump (0001403785)Secondary Air Injection Pump (0001403785) by URO Parts®. Make your vehicle operating quiet again by replacing your malfunctioning component with this top-notch emission control part. The dependable URO part will make your exhaust system...Designed to replace your worn out exhaust partHelps to restore quiet vehicle operation$203.07
- TRQ®Secondary Air Injection Pump (AIA93054)Secondary Air Injection Pump (AIA93054) by TRQ®. If you secondary air injection pump has gone bad, replace it with this top-notch part to keep your vehicle working properly. Engineered for quick and simple installation, the product...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$134.78$138.95Save $4.17 (3%)
- Mopar®Secondary Air Injection Pump (04891832AB)Secondary Air Injection Pump by Mopar®. Want your prized possession to look and perform the way it was designed to? Then top-of-the-line Mopar automotive parts and accessories are for you. Made using the latest manufacturing technology...Ideal solution to keep your vehicle in top shapeCrafted from premium-grade materials and the latest technology$349.89
- Standard®New Intermotor™ Secondary Air Injection Pump (AIP29)New Intermotor™ Secondary Air Injection Pump by Standard®. Standard is to be the leading independent supplier to the automotive aftermarket, providing the highest quality products, competitive prices and the highest reputation for...Made with precision and quality in mindDesigned to meet your specific needs$448.65
- Pierburg®Secondary Air Injection Pump (7.28124.20.0)Secondary Air Injection Pump by Pierburg®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...24 Months/24,000 MilesMade to provide unequaled quality and reliability$190.13
- Pierburg®Secondary Air Injection Pump (7.21857.01.0)Secondary Air Injection Pump by Pierburg®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...24 Months/24,000 MilesMade to provide unequaled quality and reliability$367.72
- Pierburg®Secondary Air Injection Pump (7.21852.85.0)Secondary Air Injection Pump (7.21852.85.0) by Pierburg®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...24 Months/24,000 MilesMade to provide unequaled quality and reliability$248.27
- Pierburg®Secondary Air Injection Pump (7.22166.38.0)Secondary Air Injection Pump (7.22166.38.0) by Pierburg®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...24 Months/24,000 MilesMade to provide unequaled quality and reliability$246.28
- Pierburg®Secondary Air Injection Pump (7.22166.66.0)Secondary Air Injection Pump (7.22166.66.0) by Pierburg®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...24 Months/24,000 MilesMade to provide unequaled quality and reliability$227.65
- Pierburg®Secondary Air Injection Pump (7.28124.30.0)Secondary Air Injection Pump by Pierburg®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and deliver great...24 Months/24,000 MilesMade to provide unequaled quality and reliability$233.18
- Pierburg®Secondary Air Injection Pump (7.22166.39.0)Secondary Air Injection Pump (7.22166.39.0) by Pierburg®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...24 Months/24,000 MilesMade to provide unequaled quality and reliability$195.86
- Pierburg®Secondary Air Injection Pump (7.21852.24.0)Secondary Air Injection Pump (7.21852.24.0) by Pierburg®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...24 Months/24,000 MilesMade to provide unequaled quality and reliability$209.64
- Pierburg®Secondary Air Injection Pump (7.28124.21.0)Secondary Air Injection Pump (7.28124.21.0) by Pierburg®. This product is made of high-quality materials to serve you for years to come. Designed using state-of-the-art technology and with customers in mind. It will meet your needs and...24 Months/24,000 MilesMade to provide unequaled quality and reliability$192.32
The Secondary Air Injection System, also known as the Air Injection Reactor (AIR) system, pumps fresh air into the exhaust system to cause further oxidation of unburned fuel in the exhaust, reducing Hydrocarbons (HC) and Carbon Monoxide (CO) emissions. The system includes an electric or belt-driven air pump, an air control valve, a vacuum switch, a diverter valve, one-way check valves, and hoses and tubing.
Pressurized air is generated by the air pump and fed into the exhaust system near the exhaust ports (in the cylinder head or the exhaust manifold) and at the catalytic converter, but not at the same time. The air control valve routes air to the head/manifold when the engine is warming up, to reduce emissions from the rich air/fuel mixture needed for a cold engine, and to heat the exhaust to bring the oxygen (O2) sensor and catalytic converter up to temperature sooner. When normal operating temperature is reached, the vacuum switch signals the air control valve to route air to the catalytic converter, where the injected air helps with the oxidation of HC and CO.
During deceleration, the closed throttle causes a rich air/fuel mixture. If air was injected into this mixture, a potentially component damaging backfire or explosion could result. To prevent this, a vacuum signal directs the diverter valve to route the compressed air to atmosphere during deceleration. The one-way check valves prevent hot exhaust gas from entering and damaging the air pump. These valves are located before the exhaust manifold and before the catalytic converter. When air is supplied to the component behind the valve, the exhaust manifold for example, the valve opens under the air pressure. When air is routed to the catalytic converter, the check valve closes in response to exhaust backpressure.
Although system diagnostics will vary according to make and model year, certain inspections are universal. Check the hoses and one-way check valves for evidence of burning, which can result in exhaust leaks and exhaust entering the system. On many air pumps, there is a centrifugal filter behind the pulley that can be replaced. Most modern systems will set Diagnostic Trouble Codes (DTCs) in the Engine Control Module (ECM) if there is a problem in the system. If air is not pumped to the head/manifold during warm-up, there will be excessive emissions and reduced fuel economy. Correspondingly, if air is pumped to the head/manifold when the engine is at normal operating temperature, the excess air in the system will be interpreted by the O2 sensor as a lean condition. In response, the ECM will create a rich/air fuel mixture, reducing fuel economy and causing the vehicle to fail an emissions test.