{"product_id":"yzusgomumu-coolant-reservoir-tank-replacement-for-cadillac-chevy-gmc-buick-oe-fit-thermoplastic","title":"YzusGomumu Coolant Reservoir Tank Replacement for Cadillac Chevy GMC Buick — OE-fit Thermoplastic","description":"\u003cp\u003e\u003cstrong\u003eThe YzusGomumu coolant reservoir tank is a direct-fit replacement overflow tank engineered to restore proper coolant level control and pressure management for select Cadillac, Chevrolet, GMC, and Buick models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis replacement coolant radiator reservoir is manufactured to match OE fit and function so you can replace a cracked, leaking, or discolored tank quickly and get the cooling system back to normal operation. Built from durable thermoplastic and designed to tolerate repeated temperature swings and system pressure changes, the tank includes the correct mounting points and inlet\/outlet locations for straightforward installation. Before ordering, confirm compatibility with your vehicle's model year and engine code to ensure the correct part number.\u003c\/p\u003e\n\n\u003ch3\u003eWhich vehicles does this reservoir tank work with?\u003c\/h3\u003e\n\u003cp\u003eThe YzusGomumu tank fits a broad range of GM models from recent years, covering multiple engine sizes. Review the compatibility list and OE numbers to confirm you're ordering the correct replacement for your vehicle.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCadillac: XT4 (2019–2021) 2.0L; XT5 (2017–2021) 2.0L \u0026amp; 3.6L; XT6 (2021) 2.0L \u0026amp; (2020–2021) 3.6L\u003c\/li\u003e\n  \u003cli\u003eChevrolet: Blazer (2020–2021) 2.0L\/2.5L\/3.6L; Equinox (2018–2021) 1.5L\/1.6L\/2.0L; Malibu (2016–2021) 1.5L\/2.0L\u003c\/li\u003e\n  \u003cli\u003eGMC: Acadia (2017–2021) 2.0L\/2.5L\/3.6L; Terrain (2018–2021) 1.5L\/1.6L\/2.0L\u003c\/li\u003e\n  \u003cli\u003eBuick: LaCrosse (2017–2019) 3.6L; Regal\/Regal Sportback\/TourX (2018–2020) 2.0L \u0026amp; 3.6L; Envision (2021) 2.0L\u003c\/li\u003e\n  \u003cli\u003eOE reference numbers: 23386455 and 603-861 — verify against your vehicle's part number before purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this tank help my cooling system perform better?\u003c\/h3\u003e\n\u003cp\u003eThe reservoir stores and supplies coolant to the radiator while providing room for thermal expansion. Replacing a failing tank prevents leaks and loss of coolant, reducing the chance of overheating-related drivability issues when the rest of the cooling system is functioning properly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMaintains correct coolant level between system cycles\u003c\/li\u003e\n  \u003cli\u003eProvides pressure relief and recovery during temperature changes\u003c\/li\u003e\n  \u003cli\u003ePrevents coolant loss caused by cracks, discoloration, or fractured mounts\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and features ensure long life for this replacement tank?\u003c\/h3\u003e\n\u003cp\u003eThis tank is molded from high-strength automotive-grade thermoplastic formulated to resist heat, coolant chemistry, and vibration. Reinforced mounting bosses and properly located hose connections reduce stress points that commonly cause failures in older or OEM-worn components.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHeat- and pressure-resistant construction for repeated cycles\u003c\/li\u003e\n  \u003cli\u003eAccurate molding for correct hose, cap, and bracket alignment\u003c\/li\u003e\n  \u003cli\u003eCorrosion- and chemical-resistant surface for extended service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow difficult is installation and what should I check before fitting?\u003c\/h3\u003e\n\u003cp\u003eInstallation is typically straightforward for a mechanically inclined owner with basic tools, but procedures vary by model. Drain enough coolant to avoid spills, remove the old tank and hoses, transfer any required sensors or fittings, and mount the new reservoir using the factory hardware and torque specs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm OE numbers (23386455 \/ 603-861) match your factory part\u003c\/li\u003e\n  \u003cli\u003eHave coolant and simple hand tools ready; some models require minimal trim\u003c\/li\u003e\n  \u003cli\u003eBleed the cooling system per manufacturer procedure after installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This YzusGomumu replacement reservoir tank is aimed at owners and technicians maintaining Cadillac, Chevrolet, GMC, and Buick vehicles listed above who need a reliable, OEM-form fit tank to replace failing or aged overflow reservoirs. It’s a practical purchase for DIY mechanics, repair shops, and fleet maintenance teams looking for a durable, budget-friendly part that restores cooling system integrity.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this reservoir fit my vehicle?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Check the listed years, engines, and OE numbers 23386455 or 603-861 against your factory part before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I install this myself?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, basic mechanical skills and tools suffice; drain coolant, swap the tank, reconnect hoses, and bleed the system afterward.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"YzusGomumu","offers":[{"title":"Default Title","offer_id":48085349105822,"sku":"B0DPBXJ9RR","price":37.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/yzusgomumu-reservoir-front-view.jpg?v=1785869863","url":"https:\/\/northtrailauto.ca\/products\/yzusgomumu-coolant-reservoir-tank-replacement-for-cadillac-chevy-gmc-buick-oe-fit-thermoplastic","provider":"North Trail Auto","version":"1.0","type":"link"}