If you’ve been around the Honda or Acura scene for a while, you know those factory plastic coolant expansion tanks can be a bit of a weak link. Over time, they just can’t handle the heat and pressure, and that’s where the PRL Coolant Expansion Tank kit comes into play. This isn’t just a replacement; it’s an upgrade. Made from tough 6061 aluminum, this tank is built to last. Unlike the stock plastic piece, it won’t crack or warp under pressure, and it can handle higher temperatures without breaking a sweat.
One of the standout features is the increased capacity. The PRL tank holds a solid 1.32 quarts (that’s about 1.25 liters) of coolant, which is more than double what the factory tank can manage at just .58 quarts (or .55 liters). More coolant means better heat dissipation from your engine, which is crucial for performance, especially if you’re pushing your ride hard. Plus, it keeps your engine bay looking neat and tidy—no one wants a cluttered mess under the hood.
What’s really cool about this tank is its construction. It’s made from 3mm thick aluminum and features internal baffling to prevent coolant sloshing and cavitation, which can mess with your engine’s performance. And let’s not forget about the finish. You can choose between a striking red or black anodized look, both with laser-engraved logos that add a touch of flair to your setup.
The kit comes with everything you need to get it installed on your FK8, FL5, or DE5 Civic Type-R or Integra Type-S. It includes all the necessary fittings, like billet machined barb fittings and a sight glass for monitoring coolant levels. Plus, the Buna-N O-rings provide excellent temperature and leak resistance, so you can drive with confidence.
Features:
What’s in the Box:
Compatibility:
So, if you’re looking to boost your cooling system’s reliability and performance, the PRL Coolant Expansion Tank is worth considering. It’s a solid piece of gear that not only performs well but also looks great under the hood.
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
2024-2025 Acura Integra |
Integra | 2024-2025 |
|
2016-2021 Honda Civic |
Civic | 2016-2021 |
|
2017-2021, 2023-2024 Honda Civic Type-R |
Civic Type-R | 2017-2021, 2023-2024 |

PRL Motorsport is a company established in 2007. Their goal is to provide quality aftermarket parts for enthusiasts who are into speed. The company is composed of a team that has fabricating experience going back to the 90s and early 2000s. Today, the company has created quite a reputation in building fast vehicles specializing in Japanese import platforms such as Honda, Nissan, and Mitsubishi.
Creating Parts to Make Your Cars FasterThe company focuses on parts that would make the vehicle fast. They turn the usual grocery getter to something that could be at par or even outperform some high performance built cars. They offer a variety of components such as turbochargers, intake systems, intercoolers, exhaust parts, throttle bodies, intake manifolds, and other upgrade parts.
High Tech MachineriesWith the advancement in technology, designing parts today has become more precise and accurate. PRL has taken advantage of this and uses 3D CAD Design and CNC machines to create products that are a perfect fit. Their motto for creating innovative designs has helped them create pieces that are different compared to the traditional design.
Purchase PRL Products at Vivid RacingIt is built by racers for racers. This is how we could describe PRL. They have been making parts for years and is always on the edge in pushing the boundaries when it comes to designing their products. If they could get 1 hp by just slightly changing the design, PRL would definitely do it.
If you are the kind of enthusiast who wants to go faster, then PRL is the brand for you. Visit Vivid Racing and check out the list of PRL products that would fit your specific requirements.