Engine Coolant Reservoir with Caps & Sensor - Direct Replacement
Engine Coolant Reservoir with Caps & Sensor - Direct Replacement
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In this review of the A-Premium Engine Coolant Reservoir with Caps(2) & Sensor, the bottom line is straightforward: it is a practical direct replacement for truck fleets and independent owners who need a ready-to-install coolant tank compatible with many Volvo and Mack models. The reviewer found the unit to be a solid, correctly sized replacement that simplifies installation, and its included caps and sensor make it a convenient one-piece swap. It is best for those who prioritize fitment and ease of replacement rather than premium OEM finishes.
Key Features
- Direct replacement fitment: Fits Volvo VNL, VHD and VNM models and many Mack models, reducing downtime by matching common OE mounting points.
- Sensor included: The installed sensor removes the need to transfer parts from the old tank, saving time and avoiding fit issues with reused components.
- Caps included: Two caps are supplied so both sealing points are ready for immediate installation and pressure management.
- White molded construction: The white color makes coolant level checks easy and helps spot contamination or leaks during routine inspections.
- Reference cross numbers: Multiple reference and OE numbers are listed, helping technicians confirm compatibility with existing service parts lists.
- 1 year support: Backed by a 1 year unlimited-mileage quality guarantee for peace of mind on replacement purchases.
Who It's For
This reservoir is aimed at fleet maintenance shops, owner-operators and DIY technicians who need a dependable, off-the-shelf replacement for Volvo VNL, VHD, VNM trucks from the listed years and a wide range of Mack models. The included sensor and caps mean fewer trips to the parts counter and a faster repair turnaround.
Those who want an OEM-branded part with factory provenance or who need a reservoir in a specific cosmetic finish should look elsewhere; this product focuses on correct fit and function rather than decorative or branded packaging.
Pros & Cons
Pros
- Direct replacement fit reduces installation time and alignment problems.
- Includes sensor and caps so the unit is ready to install out of the box.
- White color simplifies level checks and routine inspection.
- Supported by a 1 year unlimited-mileage quality guarantee.
Cons
- Some customers report mixed sensor quality, so the sensor may require verification after installation.
Specifications
| Fitment | Volvo VNL/VHD/VNM and various Mack models (2008-2024) |
| Reference numbers | Includes 21513975, 21513979, 21846995, 21846997 and others |
| Sensor included | Yes |
| Caps included | Yes, two caps |
| Color | White |
| Package quantity | 1 |
| Fitment type | Direct replacement |
Our Verdict
The A-Premium Engine Coolant Reservoir is a sensible, cost-effective direct replacement for technicians and truck owners who need a ready-to-install tank that matches common Volvo and Mack models. Its included sensor and caps reduce parts chasing and downtime, and the 1 year support policy adds assurance, making it a practical value for routine repairs.
Frequently Asked Questions
Does this unit come ready to install?
Yes, it ships with the sensor and both caps installed so it can replace the factory tank without transferring parts.
Will it fit my Volvo or Mack truck?
It is compatible with the listed Volvo VNL, VHD, VNM years and many Mack models; verify the reference numbers against your vehicle to be certain.
What if the sensor fails?
The product includes a 1 year unlimited-mileage quality guarantee and customers reporting sensor issues should contact the seller for support.
Editor's Take
This coolant reservoir is a practical direct replacement for Volvo and Mack trucks, offering included caps and sensor to simplify installation and a 1 year support policy for reassurance.

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