{"product_id":"spectra-98123-hvac-heater-core-rear","title":"Spectra 98123 HVAC Heater Core - Rear","description":"\u003ch2\u003eSpectra 98123 Rear Heater Core for Sienna\u003c\/h2\u003e\u003cp\u003eThe Spectra 98123 HVAC heater core is a rear heater core for 2011-2020 Toyota Sienna models. It is built to match original equipment performance targets for heat transfer and cabin comfort in rear HVAC service.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eRear HVAC heater core for Toyota Sienna applications\u003c\/li\u003e\n\u003cli\u003eOE-style replacement for rear heat output restoration\u003c\/li\u003e\n\u003cli\u003eBuilt with Spectra Premium manufacturing and quality control processes\u003c\/li\u003e\n\u003cli\u003eDirect fit for 2011-2020 Toyota Sienna, rear\u003c\/li\u003e\n\u003cli\u003ePart number 98123 for catalog and cross-reference use\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eDetailed Description\u003c\/h2\u003e\u003cp\u003eUse Spectra 98123 when servicing the rear heating circuit on a Toyota Sienna. This HVAC heater core is engineered to meet or exceed original equipment performance expectations, helping restore proper coolant-to-air heat exchange in the rear climate system. It is a practical replacement for 2011-2020 Toyota Sienna rear heater core applications where the factory unit has restricted flow, leakage, or reduced heat output. This part cross-references Four Seasons 92254 for the same application.\u003c\/p\u003e\u003ch2\u003eCommon Repair Symptoms\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eWeak or uneven rear cabin heat\u003c\/li\u003e\n\u003cli\u003eCoolant odor inside the vehicle\u003c\/li\u003e\n\u003cli\u003eMoisture or coolant residue near the rear HVAC case\u003c\/li\u003e\n\u003cli\u003eRestricted heater core flow from internal buildup\u003c\/li\u003e\n\u003cli\u003eTemperature control issues in the rear climate system\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eFits 2011-2020 Toyota Sienna, rear. Confirm the rear HVAC configuration before ordering and compare the original unit to Spectra 98123 for connector, hose, and case alignment. Flush the cooling system and inspect related hoses, clamps, and coolant condition during heater core replacement to help prevent repeat contamination.\u003c\/p\u003e\u003ch2\u003eQuality Assurance\u003c\/h2\u003e\u003cp\u003eSpectra Premium uses engineering, manufacturing technology, and quality control processes to produce heater cores that meet or exceed original equipment performance standards for the parts they replace.\u003c\/p\u003e","brand":"Spectra","offers":[{"title":"Default Title","offer_id":52832333922485,"sku":"BCNK-98123","price":46.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/SQ_98123_Fro.jpg?v=1784700756","url":"https:\/\/www.partcatalog.com\/products\/spectra-98123-hvac-heater-core-rear","provider":"PartCatalog","version":"1.0","type":"link"}