YzusGomumu Engine Coolant Overflow Reservoir Tank — Direct-Fit for GM 1.4L–1.8L, Corrosion-Resistant

YzusGomumu Engine Radiator Coolant Overflow Reservoir Tank is a direct-fit replacement expansion tank that captures and returns excess coolant to keep GM 1.4L–1.8L engines running at proper operating levels.

This replacement coolant overflow reservoir is engineered to match the fit and function of original equipment on a range of GM compact SUVs and crossovers. Made from corrosion-resistant materials and designed with OE-style connections, the tank stores hot coolant when the engine warms and supplies it back to the cooling system as it cools. It’s sold as a single unit and labeled with common OE reference numbers so you can confirm compatibility before installing.

Will this reservoir fit my vehicle?

This YzusGomumu tank is compatible with multiple GM models across model years 2013–2021, covering both 1.4L and 1.8L engines. Match your vehicle by cross-referencing the listed applications or the OE part numbers before purchasing to ensure a correct fit.

• Compatible models: Buick Encore (2013–2021), Chevrolet Trax (2013–2021), Chevrolet Tracker (2013–2015)
• Engine sizes covered: L4 1.4L and L4 1.8L variants
• OE reference numbers: 95269001, 95201979, 95380033, 13502353, 603-955

How durable is this replacement coolant tank under normal driving conditions?

Constructed from robust, corrosion-resistant plastics, the tank is built to tolerate the heat and vibration found in the engine bay. The material choice and manufacturing aim to reduce cracking and leakage risk over time, offering longer service life compared with worn OEM parts.

• Rugged plastic resists common engine-bay heat and chemical exposure
• Precision molded inlet/outlet locations to reduce stress at hose connections
• Sold as a single complete reservoir ready for installation

What should I check before installing the YzusGomumu overflow tank?

Before installation, verify the tank’s shape, mounting points and outlet positions against your vehicle’s original part. Also confirm one of the OE numbers or model/engine combinations to avoid fitment issues—this helps prevent unnecessary returns or rework.

• Compare tank mounting tabs and hose connection locations with the old reservoir
• Confirm compatibility by matching OE numbers or listed vehicle applications
• Inspect hoses and clamps; replace any brittle or damaged components during installation

How does replacing the overflow tank affect coolant system performance?

A properly functioning overflow reservoir maintains system pressure balance and preserves coolant volume, which helps the radiator and thermostat operate as intended. Replacing a cracked or leaking tank prevents coolant loss and limits air ingress, supporting consistent engine temperature management.

• Prevents external coolant leaks that can lead to low coolant levels
• Maintains closed-system behavior to reduce air pockets and overheating risk
• Helps the cooling system retain correct coolant volume during thermal cycles

Who is this part for: The YzusGomumu Engine Radiator Coolant Overflow Reservoir Tank is intended for owners and mechanics of 2013–2021 Buick Encore, Chevrolet Trax, and 2013–2015 Chevrolet Tracker models with L4 1.4L or L4 1.8L engines who need a durable, economy-minded replacement part. It’s a suitable option when the existing reservoir shows cracks, leaks, or warped mounting points. Always cross-check part numbers and vehicle specifications before purchase and consider replacing associated hoses or clamps while servicing the cooling system.