{"product_id":"a-premium-radiator-coolant-expansion-reservoir-overflow-tank-gm-trucks-suvs-15-psi-cap-sensor","title":"A-Premium Radiator Coolant Expansion Reservoir Overflow Tank — GM Trucks\/SUVs, 15 PSI Cap \u0026 Sensor","description":"\u003cp\u003e\u003cstrong\u003eThe A-Premium Radiator Coolant Expansion Reservoir Overflow Tank is a direct-fit replacement coolant recovery tank with cap and sensor, built for GM trucks and SUVs to restore proper cooling system pressure and fluid level monitoring.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis replacement expansion tank from A-Premium is a complete assembly — reservoir, spring-loaded 15 PSI cap, level\/temperature sensor and hose — designed to match factory fit and function on a range of Chevrolet, GMC, Cadillac and Hummer models. Molded from durable PA plastic, it resists heat and vibration and ships with the mounting points and hardware needed for a cleaner, faster swap. Use the Year\/Make\/Model selector before purchase to confirm compatibility with your vehicle.\u003c\/p\u003e\n\n\u003ch3\u003eWill this reservoir fit my vehicle?\u003c\/h3\u003e\n\n\u003cp\u003eCompatibility covers many GM full‑size trucks and SUVs across late 1990s through mid‑2000s model years. The listing includes exact reference numbers and commonly matched part IDs so you can cross‑check against your vehicle’s original part or service manual.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCadillac Escalade 2002–2006\u003c\/li\u003e\n  \u003cli\u003eChevrolet Avalanche 1500\/2500 (2002–2006), Silverado 1500 (1999–2006), Silverado 2500 (1999–2004), Silverado 3500 (2001–2006), Suburban\/Tahoe (2000–2006)\u003c\/li\u003e\n  \u003cli\u003eGMC Sierra 1500\/2500\/3500 and Yukon\/Yukon XL 1500\/2500 (1999–2006)\u003c\/li\u003e\n  \u003cli\u003eHummer H2 2003–2009\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the technical details and what's included?\u003c\/h3\u003e\n\n\u003cp\u003eThis unit is a pressurized coolant recovery tank with a spring‑loaded twist cap rated to 15 PSI and a preinstalled sensor for fluid level\/temperature signals. It arrives as a ready-to-install kit so you won’t need to salvage parts from the old tank.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMaterials: heat-resistant PA (polyamide) plastic\u003c\/li\u003e\n  \u003cli\u003eCap: spring-loaded twist, maximum 15 PSI\u003c\/li\u003e\n  \u003cli\u003eMounting holes: two factory-style locations for straightforward installation\u003c\/li\u003e\n  \u003cli\u003eBox contents: 1 reservoir, 1 cap, 1 sensor, 1 tubing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this reservoir help my vehicle's cooling system?\u003c\/h3\u003e\n\n\u003cp\u003eBy restoring a sealed expansion volume and proper pressure control, the tank helps maintain coolant level and reduces the risk of air pockets or loss of pressure in the cooling circuit. A correct pressure rating also supports consistent heat transfer and system performance under normal driving conditions.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eMaintains correct system pressure with 15 PSI cap\u003c\/li\u003e\n  \u003cli\u003eProvides accurate coolant level feedback via sensor\u003c\/li\u003e\n  \u003cli\u003eReduces air intrusion and coolant loss from evaporation or overflow\u003c\/li\u003e\n  \u003cli\u003eDurable PA plastic resists heat and vibration for long service life\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs installation difficult and what should I check after replacing the tank?\u003c\/h3\u003e\n\n\u003cp\u003eInstallation is typically straightforward for a home mechanic with basic tools: disconnect the battery, drain or safely work around coolant, unclip lines and electrical connector, remove mounting fasteners and swap components. After installation, refill to the proper coolant level, bleed the system if required and check for leaks while the engine reaches operating temperature.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eTools: basic hand tools and coolant catch pan\u003c\/li\u003e\n  \u003cli\u003eProcedure: remove old tank, transfer fittings or use supplied parts, reconnect sensor and hose\u003c\/li\u003e\n  \u003cli\u003eAftercare: refill and bleed cooling system, inspect for leaks and correct sensor operation\u003c\/li\u003e\n  \u003cli\u003eTip: confirm part numbers (e.g., 603-102, 19353731, GM0713009) before ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this product is for: The A-Premium Radiator Coolant Expansion Reservoir Overflow Tank is intended for owners and technicians working on compatible Chevrolet, GMC, Cadillac and Hummer models who want a complete, factory-style replacement that includes the cap and sensor. It’s ideal for garages, do-it-yourself mechanics and fleet operators replacing cracked, leaking or non‑functioning reservoir tanks to restore cooling system reliability and instrument readings. A-Premium backs this unit with a one-year unlimited‑mileage guarantee for added confidence in everyday driving use.\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 include the cap and sensor?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the kit includes the reservoir, a 15 PSI spring-loaded cap, a sensor and tubing for a complete replacement.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How do I confirm fit for my vehicle?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use the Year\/Make\/Model selector and cross-check the listed reference numbers before purchase to ensure compatibility.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"A-Premium","offers":[{"title":"Default Title","offer_id":48083967279262,"sku":"B07SQPY8FJ","price":78.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/a-premium-reservoir-front-view_7562e1f4-348a-49b8-a849-549550d8827c.jpg?v=1785841550","url":"https:\/\/northtrailauto.ca\/products\/a-premium-radiator-coolant-expansion-reservoir-overflow-tank-gm-trucks-suvs-15-psi-cap-sensor","provider":"North Trail Auto","version":"1.0","type":"link"}