{"product_id":"gdukop-engine-coolant-overflow-reservoir-tank-603-955-for-buick-encore-chevy-trax-heat-resistant-plastic-with-cap","title":"GDUKOP Engine Coolant Overflow Reservoir Tank 603-955 for Buick Encore \u0026 Chevy Trax — Heat-Resistant Plastic with Cap","description":"\u003cp\u003e\u003cstrong\u003eGDUKOP 603-955 is a direct-replacement engine coolant overflow reservoir tank with cap engineered to restore proper coolant containment and level monitoring for specified Buick Encore and Chevy Trax models.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis replacement coolant overflow reservoir tank from GDUKOP is designed to match OE fit and function for select Buick and Chevy compact SUVs. Manufactured from heat-resistant plastic and finished with a matching cap, it replaces worn or cracked tanks that can lead to coolant loss, visible leaks, or inaccurate reservoir readings. The unit ships ready for installation and aligns with original mounting points and hose connections for a straightforward swap.\u003c\/p\u003e\n\n\u003ch3\u003eWill this reservoir fit my vehicle?\u003c\/h3\u003e\n\u003cp\u003eThe GDUKOP 603-955 reservoir fits specific model years and engine sizes without modification. Verify your vehicle's model year and engine code before ordering to ensure compatibility.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCompatible with Buick Encore 2013–2021 L4 1.4L\u003c\/li\u003e\n  \u003cli\u003eCompatible with Chevy Trax 2013–2021 L4 1.4L and 2013–2019 L4 1.8L\u003c\/li\u003e\n  \u003cli\u003eReplaces OE numbers 603-955, 13502353, 95201979, 95269001\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable and reliable is the replacement tank?\u003c\/h3\u003e\n\u003cp\u003eGDUKOP builds this reservoir from durable, heat-resistant plastic formulated to withstand engine-bay temperatures and chemical exposure. The material resists cracking and warping so the tank can maintain pressure boundaries and fluid containment over time.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHeat-resistant polymer construction minimizes thermal degradation\u003c\/li\u003e\n  \u003cli\u003eDesigned to resist coolant chemical exposure and stress cracking\u003c\/li\u003e\n  \u003cli\u003eFactory-style wall thickness and mounting points for long-term stability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs installation difficult and what tools are needed?\u003c\/h3\u003e\n\u003cp\u003eInstallation is intended to be straightforward because the tank is engineered as a direct replacement for the factory unit. Most DIYers with basic hand tools can complete the swap in a short session; however, follow vehicle-specific guidance and safety precautions when working with coolant.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect-fit design aligns with original mounting tabs and hose connections\u003c\/li\u003e\n  \u003cli\u003eCommon tools: pliers, screwdrivers, socket set, coolant catch pan\u003c\/li\u003e\n  \u003cli\u003eDrain and refill coolant per vehicle manual to avoid air pockets\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat performance benefits should I expect after replacement?\u003c\/h3\u003e\n\u003cp\u003eReplacing a compromised reservoir helps maintain proper coolant level monitoring and containment, reducing the chance of visible leaks and improving system consistency. While it doesn’t change engine performance by itself, a healthy reservoir supports the cooling system’s ability to regulate temperature effectively.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRestores sealed overflow containment and accurate level readings\u003c\/li\u003e\n  \u003cli\u003eReduces risk of coolant loss from cracks or failed fittings\u003c\/li\u003e\n  \u003cli\u003eSupports consistent coolant circulation and temperature regulation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The GDUKOP 603-955 reservoir tank is aimed at owners of compatible Buick Encore and Chevy Trax models who need a reliable, OEM-style replacement. It’s suitable for mechanics, DIY enthusiasts, and fleet maintenance teams seeking a cost-effective, durable part that simplifies installation and restores the cooling system’s proper operation.\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: Which models and years does this reservoir fit?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Fits Buick Encore 2013–2021 (L4 1.4L) and Chevy Trax 2013–2021 (L4 1.4L) plus Trax 2013–2019 (L4 1.8L).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the tank come with the cap and required fittings?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, the reservoir includes the matching cap and is designed for direct replacement with original hose connections.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"GDUKOP","offers":[{"title":"Default Title","offer_id":48085026144414,"sku":"B0F8B8CP8J","price":37.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/gdukop-front-view-reservoir-tank.jpg?v=1785866911","url":"https:\/\/northtrailauto.ca\/products\/gdukop-engine-coolant-overflow-reservoir-tank-603-955-for-buick-encore-chevy-trax-heat-resistant-plastic-with-cap","provider":"North Trail Auto","version":"1.0","type":"link"}