{"product_id":"walker-256-1039-engine-oil-pressure-switch","title":"Walker 256-1039 Engine Oil Pressure Switch","description":"\u003ch2\u003eEngine Oil Pressure Monitoring\u003c\/h2\u003e\u003cp\u003eWalker 256-1039 is an OE replacement engine oil pressure switch built to monitor lubrication pressure and send a signal to the ECU or dashboard warning system when pressure drops below safe limits. It is a direct-fit solution for vehicles such as the Chevrolet Malibu, Chevrolet Equinox, and GMC Terrain that rely on accurate oil pressure feedback for engine protection.\u003c\/p\u003e\u003cp\u003eBuilt with metal and plastic construction, a black finish, and a blade pin terminal layout, this switch is made to match factory electrical response, thread size, and pressure threshold requirements. Walker 256-1039 installs in the original switch location and connects to the existing female connector without modification.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOE replacement engine oil pressure switch\u003c\/li\u003e\n\u003cli\u003eMetal and plastic construction for engine-bay durability\u003c\/li\u003e\n\u003cli\u003eBlack housing with 1 blade pin terminal\u003c\/li\u003e\n\u003cli\u003e1 female connector and 1 male terminal\u003c\/li\u003e\n\u003cli\u003eDirect-fit design for factory-style installation\u003c\/li\u003e\n\u003cli\u003eBuilt to match OE pressure thresholds and electrical response\u003c\/li\u003e\n\u003cli\u003ePart number: 256-1039\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eWalker Products 256-1039 is engineered for accurate oil pressure monitoring in a wide range of GM and Saab applications. It threads into the factory mounting point, typically on the engine block or oil filter housing, and provides the signal needed to trigger the oil warning light or communicate pressure status to the engine control system. For drivers diagnosing oil light flicker, false warnings, or a missing warning signal during a real low-pressure condition, this switch addresses the source of the fault rather than the symptom.\u003c\/p\u003e\u003cp\u003eCompatible With 2010-2017 Chevrolet Equinox, 2010-2017 GMC Terrain, 2004-2014 Chevrolet Malibu, and other listed applications, Walker 256-1039 supports accurate lubrication-system monitoring across multiple platforms. The part number 256-1039 is also a useful reference when verifying replacement fitment for service work, drivability repairs, or engine rebuilds.\u003c\/p\u003e\u003ch2\u003eCommon Issues This Part Can Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eOil pressure warning light flickering or staying on\u003c\/li\u003e\n\u003cli\u003eFalse low-oil-pressure alerts\u003c\/li\u003e\n\u003cli\u003eNo warning signal when oil pressure is actually low\u003c\/li\u003e\n\u003cli\u003eFaulty oil pressure switch electrical response\u003c\/li\u003e\n\u003cli\u003eIntermittent gauge or ECU oil pressure input issues\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eInstall the switch in the original factory location and confirm the connector style, terminal type, and thread specification before replacement. Inspect the wiring connector for corrosion, damaged terminals, or oil intrusion before connecting the new unit. After installation, verify proper oil pressure with a mechanical test if the engine has shown low-pressure symptoms, then confirm the warning light or control-system signal operates normally.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eWalker Products manufactures this oil pressure switch to OE replacement standards, with attention to pressure threshold, terminal configuration, and electrical response. High-temperature and oil-resistant materials are used to support consistent operation in engine environments. Part number 256-1039 is built for direct-fit service on the listed applications.\u003c\/p\u003e\u003cp\u003eThis part cross-references AC Delco (e.g., D1846A) for the same application.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFits 2011-2017 Buick Regal, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2012-2017 Buick Verano, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2010-2017 Chevrolet Equinox, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2010-2017 GMC Terrain, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2010-2016 Buick LaCrosse, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2012-2015 Chevrolet Captiva Sport, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2014 Chevrolet Impala, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2004-2014 Chevrolet Malibu, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2006-2011 Chevrolet HHR, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2003-2011 Saab 9-3, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2010-2011 Saab 9-3X, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2011 Saab 9-5, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2005-2010 Chevrolet Cobalt, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2006-2010 Pontiac G6, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2007-2010 Saturn Sky, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2002-2010 Saturn Vue, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2007-2009 Pontiac G5, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2006-2009 Pontiac Solstice, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2007-2009 Saturn Aura, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2003-2007 Saturn Ion, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2002-2005 Chevrolet Cavalier, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2004-2005 Chevrolet Classic, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2002-2005 Pontiac Grand Am, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2002-2005 Pontiac Sunfire, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2002-2004 Oldsmobile Alero, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2004 Saturn L300, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2000 Saturn LS, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2000 Saturn LS1, N\/A\u003c\/li\u003e\n\u003cli\u003eFits 2000 Saturn LW1, N\/A\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Walker","offers":[{"title":"Default Title","offer_id":52985192874165,"sku":"DKHD-256-1039","price":26.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/O2_2561039_Fro.jpg?v=1787122342","url":"https:\/\/www.partcatalog.com\/products\/walker-256-1039-engine-oil-pressure-switch","provider":"PartCatalog","version":"1.0","type":"link"}