A-Premium Radiator Coolant Expansion Reservoir for Volvo & Mack — Translucent White, With Cap & Sensor, Direct-Fit

The A-Premium Radiator Coolant Expansion Reservoir Overflow Tank is a direct-fit replacement coolant reservoir that includes the cap and sensor for ready installation on compatible Volvo and Mack heavy-duty trucks.

This overflow tank is molded from durable white plastic and arrives complete with a pressure cap and level/pressure sensor, so you won’t need extra parts to restore proper coolant overflow management. It’s engineered as a direct replacement for specific Volvo VNL, VHD, VNM models (2008–2024) and a wide range of Mack models including Granite, Anthem, Pinnacle and more. The unit carries multiple reference numbers for cross-compatibility and fits vehicles listed under ID No. 21513975.

Which trucks will this coolant reservoir fit?

This A-Premium reservoir is designed to match OE fit and mounting points for many Volvo and Mack heavy-duty trucks. Always verify fit using your vehicle’s year, make, and model before ordering to ensure compatibility and avoid returns.

• Volvo fitment: VNL 2008–2024, VHD 2008–2023, VNM 2008–2018
• Mack fitment: Granite 2019–2024, Anthem 2018–2023, Pinnacle 2008–2022, CHU/CXU/CXN ranges
• Check cross-reference numbers (e.g., 21513975 and dozens listed) for exact matches
• Use the Year/Make/Model selector or VIN lookup when available

What’s included and what are the key specs?

The package ships as a single complete reservoir assembly with the cap and an installed sensor, ready to plug into your truck’s cooling system. It’s non-pressurized in design and finished in translucent white so fluid levels are visible without removing the cap.

• Includes: reservoir tank, cap, sensor — single-unit package
• Color: white translucent — easy visual coolant monitoring
• Fitment type: direct replacement — no modification needed
• Package quantity: 1; backed by a 1-year unlimited-mileage quality guarantee

How will this part make maintenance easier?

Swapping a worn or cracked overflow tank restores coolant containment and prevents fluid loss and engine overheating risks associated with leaks. Because the sensor and cap are included, installation is simplified — fewer parts to source and fewer installation steps overall.

• Plug-and-play replacement with preinstalled sensor and cap
• Translucent body reduces time spent removing the cap to check level
• Direct-fit mounting minimizes installation time and tools required
• Backed by a warranty to protect against early defects

Who is this replacement reservoir for? If you operate or maintain Volvo VNL/VHD/VNM or a compatible Mack model from the model years listed, and you need a reliable, OEM-style overflow tank that includes the cap and coolant level/pressure sensor, this A-Premium assembly is tailored for you. It’s ideal for fleet mechanics, owner-operators, and service shops that want a straightforward swap to restore coolant overflow function without sourcing multiple components. Before purchase, confirm your vehicle’s reference or cross-reference numbers (many are provided) or use your vehicle selector to ensure an exact fit. With durable construction and a straightforward warranty, this reservoir offers a practical solution for routine cooling-system maintenance and repair.