{"product_id":"pierburg-7-21851-31-0-secondary-air-injection-pump","title":"Pierburg 7.21851.31.0 Secondary Air Injection Pump","description":"\u003ch2\u003eReliable Secondary Air Injection Pump for Audi and Volkswagen\u003c\/h2\u003e\u003cp\u003eThe Pierburg 7.21851.31.0 Secondary Air Injection Pump is an essential component designed to support emission control systems in select Audi and Volkswagen models. Operating electrically at 12 volts, this pump helps reduce harmful emissions by injecting air into the exhaust stream during cold starts.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eElectric operating mode for efficient performance\u003c\/li\u003e\n\u003cli\u003eCompatible with 12V electrical systems\u003c\/li\u003e\n\u003cli\u003eTechnical Information Number: Si 1150-11 for reference\u003c\/li\u003e\n\u003cli\u003eFits Audi A4, A4 Quattro, A6, A6 Quattro, S6, TT, TT Quattro\u003c\/li\u003e\n\u003cli\u003eCompatible with Volkswagen Beetle, Cabrio, Golf, Jetta, Passat\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details and Technical Specifications\u003c\/h2\u003e\u003cp\u003eThe Pierburg 7.21851.31.0 secondary air injection pump operates on a 12-volt electric system, ensuring reliable activation during engine cold starts. This pump is part of the emission control air injection system, which injects fresh air into the exhaust manifold to promote the oxidation of unburned hydrocarbons and carbon monoxide. The Technical Information Number Si 1150-11 provides detailed reference for installation and maintenance procedures. Designed specifically for Audi and Volkswagen vehicles, this pump supports models including the Audi A4, A4 Quattro, A6, A6 Quattro, S6, TT, TT Quattro, and Volkswagen Beetle, Cabrio, Golf, Jetta, and Passat.\u003c\/p\u003e\u003ch2\u003eCommon Applications and Problem Resolution\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReduces cold start emissions by supplying additional air to the exhaust\u003c\/li\u003e\n\u003cli\u003ePrevents check engine light triggers related to secondary air injection faults\u003c\/li\u003e\n\u003cli\u003eResolves issues with failed emission tests due to air injection system malfunctions\u003c\/li\u003e\n\u003cli\u003eEliminates rough idling caused by improper air injection\u003c\/li\u003e\n\u003cli\u003eAddresses pump failure symptoms such as unusual noises or lack of airflow\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstallation of the Pierburg 7.21851.31.0 secondary air injection pump requires basic mechanical skills and familiarity with the vehicle’s emission control system. Ensure the vehicle’s battery is disconnected before installation to avoid electrical hazards. Verify compatibility with your specific Audi or Volkswagen model and engine variant. Follow the Technical Information Number Si 1150-11 guidelines for torque specifications and electrical connections. After installation, perform a system check to confirm proper pump operation and absence of diagnostic trouble codes.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty Information\u003c\/h2\u003e\u003cp\u003eManufactured by Pierburg, a recognized supplier of emission control components, this secondary air injection pump meets OEM standards for fit and function. The product undergoes rigorous quality control to ensure durability and reliable performance. Warranty coverage details should be confirmed at the point of purchase, typically including protection against manufacturing defects for a specified period.\u003c\/p\u003e","brand":"Pierburg","offers":[{"title":"Default Title","offer_id":43934513660085,"sku":"JCJT-7.21851.31.0","price":352.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/HL_721851310_Fro.jpg?v=1775005084","url":"https:\/\/www.partcatalog.com\/products\/pierburg-7-21851-31-0-secondary-air-injection-pump","provider":"PartCatalog","version":"1.0","type":"link"}