A-Premium Engine Radiator Coolant Expansion Reservoir Tank for Chevrolet HHR (15940309) White/Black w/Cap, PA Plastic

A-Premium Engine Radiator Coolant Expansion Reservoir Overflow Tank with cap is a direct-replacement coolant overflow reservoir designed to fit Chevrolet HHR models, providing reliable coolant storage and pressure management for the vehicle's cooling system.

This replacement expansion tank from A-Premium is molded from heat- and vibration-resistant PA plastic and ships with the necessary cap for a complete installation. It's offered as a direct replacement for specific Chevrolet HHR engines (2.0L, 2.2L, 2.4L) and carries the reference number 15940309 so you can confirm compatibility before purchasing. The tank's white-and-black construction gives technicians a clear view of fluid level while matching factory mounting points for a straightforward swap.

Will this reservoir fit my Chevy HHR?

The A-Premium reservoir is designed specifically for Chevrolet HHR model years and engine sizes listed by the manufacturer. Confirm fit by selecting your vehicle's Year/Make/Model on the parts page and matching reference number 15940309 to ensure exact compatibility.

• Fits Chevrolet HHR 2008–2010 L4 2.0L
• Fits Chevrolet HHR 2006–2011 L4 2.2L and 2.4L
• Direct-replacement design for factory mounting points
• Reference: 15940309 for cross-checking

How durable and heat-resistant is this expansion tank?

Constructed from polyamide (PA) plastic, the tank resists heat and engine-bay vibration to maintain structural integrity under typical operating conditions. The material choice helps protect against cracking and swelling that can occur with cheaper plastics in contact with hot coolant and engine movement.

• Made from PA plastic for thermal and mechanical stability
• Designed to withstand underhood heat and vibration
• White/translucent body lets you visually check coolant level
• Includes a matching cap for sealed pressure control

What comes in the box and how easy is installation?

The product ships complete with one expansion tank and the required cap, so you receive everything necessary to replace a failed reservoir. Installation is intended to be a direct replacement: the tank aligns with factory brackets and hose connections, minimizing the need for modifications or special tools.

• Contents: 1 expansion tank and 1 cap
• Direct-replacement fit for factory mounting points
• Simple hose and clamp transfer recommended during swap
• Follow vehicle service manual for coolant handling and bleeding

Does A-Premium offer any warranty or support?

A-Premium backs this expansion tank with a one-year unlimited-mileage guarantee to cover manufacturing defects and provide buyer confidence. Customer support is available through the seller for fitment questions and claims.

• One-year unlimited-mileage warranty from A-Premium
• Technical fitment guidance available pre-purchase
• Reference number provided for accurate cross-referencing

Who is this for: This A-Premium radiator coolant expansion reservoir is intended for Chevrolet HHR owners and independent technicians who need a dependable, OEM-style replacement for cracked or leaking overflow tanks. It's especially suitable for vehicles in the specified model years and engine configurations where direct-fit parts and a factory-like appearance are preferred. Choose this tank when you want a straightforward swap that restores proper coolant storage and helps maintain effective cooling-system operation.