Car Coolant Reservoir Overflow Tank With Cover for Buick Envision 2.0L L4

Replace a worn or damaged coolant reservoir with this Car Coolant Reservoir Expansion Overflow Tank With Cover, a direct OE-style replacement built to fit GM variations across Buick, Cadillac, Chevrolet, and GMC lineups. By providing a dedicated expansion space for heated coolant, it helps prevent overflow, reduces air ingress into the cooling system, and minimizes the risk of coolant loss that can lead to overheating.

This tank is designed to match OE reference 23386455, ensuring proper fit, seal, and compatibility with the factory routing and cap. Note: The Compatibility is just for Reference. Before purchase, please compare the Part Number with your original part. It must be the same. Otherwise, it may not be the correct replacement for your car. The listing covers a broad range of GM vehicles; always verify the original part number to confirm a precise replacement.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

Benefits & Tips

• Restores proper coolant expansion space to maintain cooling efficiency and prevent spills during heat cycles.
• Easy, direct replacement with OEM-style mounting points and cap to preserve correct pressure and flow.
• Ideal for maintenance on aging reservoirs or after engine cooling system service to avoid leaks and air pockets; check coolant level after installation and bleed air if needed.

Product specifications

• OE Part Number: 23386455
• Compatibility (reference): Buick Envision 2.0L L4 - Gas (2021–2022); Buick LaCrosse 3.6L V6 - Gas (2017–2019); Buick Regal 2.0L L4 - Gas (2018–2020); Buick Regal TourX 2.0L L4 - Gas (2018–2020); Cadillac XT4 2.0L L4 - Gas (2019–2022); Cadillac XT5 3.6L V6 - Gas (2017–2022); Cadillac XT6 3.6L V6 - Gas (2020–2022); Chevrolet Blazer 3.6L V6 - Gas (2019–2022); Chevrolet Equinox 1.5L L4 - Gas (2018–2022); Chevrolet Malibu 1.5L L4 - Gas (2018–2022); Chevrolet Malibu 2.0L L4 - Gas (2016–2022); GMC Acadia 3.6L V6 - Gas (2017–2022); GMC Terrain 1.5L L4 - Gas (2018–2022)
• Origin: Mainland China
• Packaging: 1 x Car Coolant Reservoir Expansion Overflow Tank With Cover

Package includes:

• 1 x Car Coolant Reservoir Expansion Overflow Tank With Cover

Warnings / Reminders

The Compatibility is for reference only. Before purchase, please compare the Part Number with your original part. It must be the same; otherwise, it may not be the correct replacement for your car.

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