{"product_id":"pierburg-7-21852-82-0-secondary-air-injection-pump","title":"Pierburg 7.21852.82.0 Secondary Air Injection Pump","description":"\u003ch2\u003ePierburg Secondary Air Injection Pump for BMW Z8\u003c\/h2\u003e\u003cp\u003ePierburg 7.21852.82.0 is a standard replacement secondary air injection pump for emission control systems. It delivers electric operation at 13 VDC and pushes fresh air into the exhaust during cold starts to help reduce emissions and support smooth engine operation.\u003c\/p\u003e\u003cp\u003eCompatible with 2000-2003 BMW Z8 applications listed below, this Genuine OE from HELLA part is built for direct-fit service where the original pump has failed or is no longer performing as required. Part number 7.21852.82.0 is also referenced for OE-style replacement needs on the BMW Z8.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSecondary air injection pump for emission control systems\u003c\/li\u003e\n\u003cli\u003eElectric operating mode for consistent cold-start air delivery\u003c\/li\u003e\n\u003cli\u003e13 VDC electrical specification\u003c\/li\u003e\n\u003cli\u003eStandard replacement grade\u003c\/li\u003e\n\u003cli\u003eGenuine OE from HELLA branding under the Pierburg line\u003c\/li\u003e\n\u003cli\u003eDirect application for BMW Z8 model years 2000-2003\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003cp\u003ePierburg 7.21852.82.0 is engineered for the secondary air injection system, which introduces fresh air into the exhaust stream during cold starts. That process helps the engine reach cleaner operating conditions sooner and supports proper emissions control. For BMW Z8 owners, this pump provides an OE-level replacement path when the original unit is worn, noisy, or no longer supplying air as expected. This part cross-references BMW OE applications such as 11 17 1 390 900 and 11 72 1 433 900 for the same application.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCold-start emissions faults\u003c\/li\u003e\n\u003cli\u003eSecondary air injection pump failure codes\u003c\/li\u003e\n\u003cli\u003eInsufficient fresh-air delivery to the exhaust\u003c\/li\u003e\n\u003cli\u003eRough or unstable cold-start operation tied to emissions hardware\u003c\/li\u003e\n\u003cli\u003eNoise or reduced output from a failing electric air pump\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the OE number 11721433900 before ordering and confirm the vehicle is a 2000-2003 BMW Z8. Inspect related hoses, valves, and electrical connections during replacement so the new pump can operate correctly. The part number 7.21852.82.0 should be matched to the vehicle’s emissions system configuration before installation.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003ePierburg is supplied here as Genuine OE from HELLA, giving this secondary air injection pump an OE-focused replacement profile for BMW Z8 emissions service.\u003c\/p\u003e","brand":"Pierburg","offers":[{"title":"Default Title","offer_id":52417909194933,"sku":"BLGF-7.21852.82.0","price":277.69,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/HL_721852820_Fro.jpg?v=1777804916","url":"https:\/\/www.partcatalog.com\/products\/pierburg-7-21852-82-0-secondary-air-injection-pump","provider":"PartCatalog","version":"1.0","type":"link"}