{"product_id":"sykrss-engine-coolant-reservoir-tank-for-chevrolet-sonic-2012-2020-direct-fit-translucent-polypropylene-oe-replacement","title":"SYKRSS engine coolant reservoir tank for Chevrolet Sonic 2012–2020 — direct-fit translucent polypropylene OE replacement","description":"\u003cp\u003e\u003cstrong\u003eThe SYKRSS 603-386 engine coolant reservoir tank is a direct-fit replacement expansion tank engineered to restore proper coolant storage and recovery for Chevrolet Sonic models from 2012–2020.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your vehicle's original coolant recovery tank is cracked, leaking, or showing signs of age, this SYKRSS OE-standard reservoir provides a straightforward repair option. Molded from heat-resistant polypropylene to match OEM dimensions and connections, it replaces part numbers such as 95048411, 42609220, GM3014167, 603-386, 13502353 and ECA92006. The tank allows visible level checks without opening the radiator cap and reintroduces excess coolant back into the cooling system as the engine cools.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this tank match OEM fit and function?\u003c\/h3\u003e\n\u003cp\u003eThe SYKRSS 603-386 is manufactured to meet or exceed OEM specifications for form, fit and function. It uses the same mounting points, hose connections and reservoir volume as the original part so installation is plug-and-play on compatible Chevrolet Sonic vehicles.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect-replacement dimensions matched to original part numbers.\u003c\/li\u003e\n  \u003cli\u003eCompatible hose ports and mounting bosses for easy installation.\u003c\/li\u003e\n  \u003cli\u003eDesigned to maintain system pressure and coolant recovery flow paths.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and durability features does the reservoir offer?\u003c\/h3\u003e\n\u003cp\u003eThis expansion tank is injection-molded from high-temperature polypropylene that resists heat cycling, chemical exposure and vibration typical underhood. The translucent finish permits visual antifreeze level checks while the sealed construction reduces leak risk compared with brittle, aged tanks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHigh-quality PP plastic tolerates heat and engine bay stress.\u003c\/li\u003e\n  \u003cli\u003eTranslucent body for quick coolant level viewing.\u003c\/li\u003e\n  \u003cli\u003eReinforced connection points to reduce cracking at hose interfaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does the coolant reservoir operate within the cooling system?\u003c\/h3\u003e\n\u003cp\u003eThe reservoir collects excess coolant when the system warms and coolant expands, then returns that fluid to the radiator as the engine cools. This reduces overpressure events, helps maintain proper coolant volume and supports the vehicle’s heater efficiency.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAccepts overflow from the radiator during thermal expansion.\u003c\/li\u003e\n  \u003cli\u003eStores and returns coolant to maintain system volume and pressure balance.\u003c\/li\u003e\n  \u003cli\u003ePrevents unnecessary coolant loss and enables visual level checks without opening the radiator cap.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat warranty and customer support does SYKRSS provide?\u003c\/h3\u003e\n\u003cp\u003eSYKRSS backs this coolant reservoir with a 12-month warranty and responsive customer service. If you encounter fitment issues or defects, the brand commits to address inquiries within 48 hours to deliver resolution or part replacement when applicable.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e12-month limited warranty covering manufacturing defects.\u003c\/li\u003e\n  \u003cli\u003eCustomer support response within 48 hours for assistance.\u003c\/li\u003e\n  \u003cli\u003eClear compatibility listing reduces return risk when matched to vehicle years.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This reservoir is intended for owners and mechanics who need a reliable, OE-compatible replacement for a leaking or damaged coolant recovery tank on Chevrolet Sonic model years 2012 through 2020. It’s suitable for DIY installers and professional shops seeking an affordable part that restores coolant containment, preserves heater performance and avoids the hassle of radiator cap checks or temporary fixes. Verify your existing part number or vehicle year to confirm fitment before purchasing.\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: Will this tank fit my Chevrolet Sonic from 2012?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The SYKRSS 603-386 is a direct-fit replacement for Chevrolet Sonic 2012–2020 when matching listed part numbers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does the reservoir include a cap or mounting hardware?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The listing covers the reservoir. Verify if cap or extra hardware is included in your specific seller listing before purchase.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"SYKRSS","offers":[{"title":"Default Title","offer_id":67588785078457,"sku":"B0D5LKRS11","price":81.73,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0822\/3765\/3177\/files\/sykrss-coolant-reservoir-front-view_b866840e-3b11-4d99-966c-3d29b15ebb93.jpg?v=1790524822","url":"https:\/\/redleafauto.ca\/products\/sykrss-engine-coolant-reservoir-tank-for-chevrolet-sonic-2012-2020-direct-fit-translucent-polypropylene-oe-replacement","provider":"Redleaf Auto","version":"1.0","type":"link"}