{"product_id":"facet-7-8649-engine-coolant-thermostat","title":"Facet 7.8649 Engine Coolant Thermostat","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\u003cp\u003eFacet 7.8649 is an engine coolant thermostat for select Nissan and INFINITI applications. It is a direct-fit cooling system service part for vehicles that need precise coolant temperature control and stable engine operating conditions.\u003c\/p\u003e\u003cp\u003eCompatible With Nissan Armada, TITAN, Pathfinder, NV2500, and NV3500 applications, as well as INFINITI QX56, FX45, FX50, M45, M56, Q45, QX70, and QX80 applications. This part number, 7.8649, is listed across multiple model years for fitment-based search accuracy.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEngine coolant thermostat for cooling system temperature regulation\u003c\/li\u003e\n\u003cli\u003eDirect-fit replacement for select Nissan and INFINITI vehicles\u003c\/li\u003e\n\u003cli\u003eFitment spans multiple model years for broad application coverage\u003c\/li\u003e\n\u003cli\u003eFacet part number 7.8649 for catalog and service lookup\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eFacet 7.8649 is an engine coolant thermostat used in cooling system service on select Nissan and INFINITI platforms. It is listed for applications including Nissan Armada, TITAN, Pathfinder, NV2500, and NV3500, along with INFINITI QX56, FX45, FX50, M45, M56, Q45, QX70, and QX80. When replacing a thermostat, matching the correct application is important for maintaining proper coolant flow and engine temperature control. The part number 7.8649 appears in service catalogs for these vehicles and should be verified against the exact model year and notes before installation.\u003c\/p\u003e\u003ch2\u003eWhat It Helps Address\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eEngine running too cool or too hot\u003c\/li\u003e\n\u003cli\u003eUnstable coolant temperature during operation\u003c\/li\u003e\n\u003cli\u003eCooling system service on a worn thermostat\u003c\/li\u003e\n\u003cli\u003eTemperature control issues tied to thermostat wear\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\u003cp\u003eVerify the year, make, model, and notes before ordering or installing. This listing includes applications marked with thermostat notes and one QX80 application noted as up to August 2015, so exact catalog matching matters. Inspect the cooling system condition during service and confirm the replacement thermostat matches the original application and engine requirements.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eFacet is a recognized aftermarket brand for engine management and thermal control components. Part number 7.8649 is cataloged for specific Nissan and INFINITI fitments to support accurate replacement selection.\u003c\/p\u003e","brand":"Facet","offers":[{"title":"Default Title","offer_id":53555996295349,"sku":"CHMT-7.8649","price":30.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/FT_78649_Fro.jpg?v=1792390471","url":"https:\/\/www.partcatalog.com\/products\/facet-7-8649-engine-coolant-thermostat","provider":"PartCatalog","version":"1.0","type":"link"}