{"product_id":"hella-7-02604-21-0-oxygen-sensor","title":"Hella 7.02604.21.0 Oxygen Sensor","description":"\u003ch2\u003eHella Oxygen Sensor for BMW and Land Rover\u003c\/h2\u003e\u003cp\u003eRestore accurate exhaust feedback with this Hella oxygen sensor, part number 7.02604.21.0. It is a direct-fit emission control sensor for select BMW and Land Rover applications, including BMW X3, X5, 325xi, Z4, and Range Rover models.\u003c\/p\u003e\u003cp\u003eBrand Line: Pierburg distributed by Hella identifies this sensor as part of a product line supplied through Pierburg distribution and backed by Hella catalog coverage for OE-style replacement needs.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOxygen sensor for emission control system service\u003c\/li\u003e\n\u003cli\u003eHella part number 7.02604.21.0\u003c\/li\u003e\n\u003cli\u003eFits select upstream, downstream, rear, rear lower, and front lower positions\u003c\/li\u003e\n\u003cli\u003eOE-number referenced applications for accurate vehicle matching\u003c\/li\u003e\n\u003cli\u003eCoverage for BMW and Land Rover models from 1999-2006\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eFitment Details\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFits 2004-2006 BMW X3, rear lower, with OE No. 11787513963.\u003c\/li\u003e\n\u003cli\u003eFits 2004-2006 BMW X3, front lower, with OE No. 11781433940.\u003c\/li\u003e\n\u003cli\u003eFits 2001-2006 BMW X5, upstream, with OE No. 11781433940.\u003c\/li\u003e\n\u003cli\u003eFits 2001-2005 BMW 325xi, downstream, with OE No. 11781433940.\u003c\/li\u003e\n\u003cli\u003eFits 2003-2005 BMW Z4, rear lower, with OE No. 11787513963.\u003c\/li\u003e\n\u003cli\u003eFits 2003-2005 BMW Z4, front lower, with OE No. 11781433940.\u003c\/li\u003e\n\u003cli\u003eFits 2003-2005 Land Rover Range Rover, rear, with OE No. MHK000220.\u003c\/li\u003e\n\u003cli\u003eFits 2001-2004 BMW 320i, downstream, with OE No. 11781433940.\u003c\/li\u003e\n\u003cli\u003eFits 2001-2004 BMW 330xi, downstream, with OE No. 11781433940.\u003c\/li\u003e\n\u003cli\u003eFits 2001-2003 BMW 325Ci, downstream, with OE No. 11781433940.\u003c\/li\u003e\n\u003cli\u003eFits 2001-2003 BMW 325i, downstream, with OE No. 11781433940.\u003c\/li\u003e\n\u003cli\u003eFits 2001-2003 BMW 330Ci, downstream, with OE No. 11781433940.\u003c\/li\u003e\n\u003cli\u003eFits 2001-2003 BMW 330i, downstream, with OE No. 11781433940.\u003c\/li\u003e\n\u003cli\u003eFits 2001-2003 BMW 525i, downstream, with OE No. 11781433940.\u003c\/li\u003e\n\u003cli\u003eFits 2001-2003 BMW 530i, downstream, with OE No. 11781433940.\u003c\/li\u003e\n\u003cli\u003eFits 1999-2002 BMW Z3, downstream, with OE No. 11781433940.\u003c\/li\u003e\n\u003cli\u003eFits 2000 BMW 323Ci, downstream, with OE No. 11781433940.\u003c\/li\u003e\n\u003cli\u003eFits 1999-2000 BMW 323i, downstream, with OE No. 11781433940.\u003c\/li\u003e\n\u003cli\u003eFits 2000 BMW 328Ci, downstream, with OE No. 11781433940.\u003c\/li\u003e\n\u003cli\u003eFits 1999-2000 BMW 328i, downstream, with OE No. 11781433940.\u003c\/li\u003e\n\u003cli\u003eFits 2000 BMW 528i, downstream, with OE No. 11781433940.\u003c\/li\u003e\n\u003cli\u003eFits 1999 BMW 528i, downstream, manifold with catalyst, with OE No. 11781433940.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWhat This Sensor Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eCheck engine light related to oxygen sensor performance\u003c\/li\u003e\n\u003cli\u003eIncorrect air-fuel ratio feedback\u003c\/li\u003e\n\u003cli\u003eRough idle or drivability issues tied to exhaust sensor readings\u003c\/li\u003e\n\u003cli\u003eFailed emissions inspection caused by sensor faults\u003c\/li\u003e\n\u003cli\u003eSlow or inaccurate sensor response in the exhaust stream\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eVerify the OE number and sensor position before ordering, since this part is listed for multiple BMW and Land Rover locations. Match the application carefully for upstream, downstream, rear, rear lower, or front lower placement, and confirm connector and harness routing against the original sensor before installation.\u003c\/p\u003e\u003cp\u003eFor BMW X3, BMW X5, BMW 325xi, BMW Z4, and Range Rover applications, use the vehicle’s OE reference and position details to confirm the correct replacement. This part number is 7.02604.21.0.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eHella catalog coverage and Pierburg distribution support OE-referenced replacement selection for the listed applications. This part cross-references OE numbers 11781433940 and 11787513963 for the same application where noted.\u003c\/p\u003e","brand":"Hella","offers":[{"title":"Default Title","offer_id":52417895596213,"sku":"BFDP-7.02604.21.0","price":130.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/HL_702604210_FRO.jpg?v=1777804373","url":"https:\/\/www.partcatalog.com\/products\/hella-7-02604-21-0-oxygen-sensor","provider":"PartCatalog","version":"1.0","type":"link"}