A-Premium Engine Radiator Expansion Reservoir w/ Cap, White Translucent — Direct-Fit for Buick & Chevrolet (20 PSI)

This replacement expansion tank from A-Premium is designed to match factory fitment and function for specific Buick Cascada, Verano and Chevrolet Cruze and Orlando years. Molded from heat-resistant PA plastic and supplied with a spring-loaded twist cap rated to 20 PSI, the unit replaces worn or cracked overflow tanks that can lead to coolant loss, air ingress, or reduced heating performance. A correct, pressurized reservoir helps the cooling system maintain the intended operating pressure and coolant flow under normal driving conditions.

Which cars does this reservoir fit and how do I confirm compatibility?

The tank is manufactured to fit multiple Buick and Chevrolet models across several production years. Before ordering, select your vehicle’s Year/Make/Model on the product page or cross-check the listed part reference numbers against your OEM part to verify fit.

• Compatible vehicles: Buick Cascada (2016–2018), Verano (2012–2017); Chevrolet Cruze (2010–2016, including Cruze Limited 2016), Orlando (2012–2014).
• Reference numbers included for lookup: 603-383, 13505353, 13393368, 13465094, 13256823 and other manufacturer codes.
• Always confirm fitment with your VIN or OEM part number before purchase.

What are the key specs and materials of the A-Premium expansion tank?

The reservoir is built from a durable PA (polyamide) plastic engineered to handle engine bay heat, vibration and chemical exposure. It arrives complete with the pressure cap and mounting hardware points to make installation straightforward.

• Material: heat- and vibration-resistant PA plastic for long service life.
• Mount points: two factory-style mounting holes for secure attachment.
• Cap: spring-loaded twist type included; maximum pressure rating 20 PSI.
• Color: white translucent for easy coolant level checks.

How does this replacement tank affect cooling system performance?

A correctly functioning pressurized expansion tank helps maintain coolant volume and system pressure, reducing the chance of air pockets and overheating. Using a new, undamaged reservoir and cap keeps the system sealing and assists the heater core and engine thermal management.

• Restores proper pressure containment to help prevent boil-over and coolant loss.
• Clear tank body allows quick visual fluid level inspection and leak checks.
• Helps the heater system circulate coolant as designed for reliable cabin heat.
• Reduces risk of contamination from cracked or brittle old tanks.

What comes with the purchase and what warranty is offered?

The unit ships with the expansion tank and the spring-loaded cap already installed. A-Premium backs the assembly with a one-year unlimited-mileage guarantee against manufacturing defects, giving buyers reassurance when replacing a critical cooling component.

• Package includes: expansion reservoir tank plus twist-type pressure cap.
• Warranty: one-year unlimited-mileage coverage from A-Premium for defects.
• Replace damaged clamps or hoses during installation for best results.

Who this is for: This A-Premium expansion tank is intended for vehicle owners and mechanics replacing a failing, cracked or leaking coolant overflow reservoir on compatible Buick and Chevrolet models. It’s suitable for DIY installers who want a ready-to-fit replacement that restores coolant containment and pressure control, as well as professional shops seeking an affordable OE-style part backed by a one-year guarantee.