SKU: 99230326839

PRL Coolant Expansion Tank for FK8/FL5/DE5

$151.20 $168.00
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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

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Description

PRL Coolant Expansion Tank for FK8/FL5/DE5PRL Motorsports Coolant Expansion Tank 2017 2025 Honda Civic Type R (FK8 & FL5) 2024+ Acura Integra Type S (DE5) Upgrade your cooling system with the PRL Motorsports Coolant Expansion Tank, designed for the 2017 2025 Honda Civic Type R (FK8 & FL5) and the 2024+ Acura Integra Type S (DE5). Engineered from high strength 3mm 6061 aluminum, this performance expansion tank is built to withstand extreme heat and pressure cycles that often cause factory

PRL Motorsports Coolant Expansion Tank – 2017-2025 Honda Civic Type R (FK8 & FL5) / 2024+ Acura Integra Type S (DE5)

Upgrade your cooling system with the PRL Motorsports Coolant Expansion Tank, designed for the 2017-2025 Honda Civic Type R (FK8 & FL5) and the 2024+ Acura Integra Type S (DE5). Engineered from high-strength 3mm 6061 aluminum, this performance expansion tank is built to withstand extreme heat and pressure cycles that often cause factory plastic tanks to crack, leak, or fail. Available in striking black or red anodized finishes, it delivers both durability and a premium look to your engine bay.

This PRL Civic Type R expansion tank and PRL Integra Type S expansion tank more than doubles the coolant capacity over stock — 1.32 quarts (1.25 liters) compared to the OEM 0.58 quarts (0.55 liters). The increased capacity improves the cooling system’s ability to dissipate heat, keeping your engine running at optimal temperatures during demanding driving. Internal baffling helps prevent coolant sloshing and cavitation, while the built-in sight glass makes it easy to check fluid levels at a glance.

Precision laser-cut construction, TIG-welded seams, and billet machined fittings ensure unmatched fit, finish, and reliability. The kit includes all necessary fittings for a true plug-and-play installation on FK8, FL5, and DE5 platforms, as well as compatibility with 2016-2021 Honda Civics equipped with the 1.5T engine.

Key Features:

  • Fits 2017-2025 Honda Civic Type R (FK8 & FL5) and 2024+ Acura Integra Type S (DE5)
  • Robust 3mm 6061 aluminum construction – resistant to heat and high pressure
  • More than doubles coolant capacity: 1.32 quarts vs. OEM 0.58 quarts
  • Available in black or red anodized finish with laser-engraved PRL logo
  • Integrated sight glass for quick and accurate coolant level checks
  • Internal baffling reduces coolant slosh and prevents cavitation
  • Laser cut and TIG welded for premium fit and finish
  • Buna-N O-rings for exceptional temperature and leak resistance
  • Includes all fittings for a plug-and-play installation

Kit Includes:

  • Fully welded and anodized expansion tank (black or red)
  • 1x 1/16” NPT 8mm barb fitting
  • 2x 8AN ORB 14mm barb fittings
  • 1x 8AN ORB 17mm barb fitting
  • 1x 8AN ORB 8mm barb fitting
  • 1x 10AN sight glass

The PRL Motorsports aluminum coolant reservoir is the ideal cooling system upgrade for performance-driven Honda and Acura owners. Whether you’re daily driving, tracking, or pushing high boost levels, this expansion tank ensures your engine stays cooler, your coolant system stays stronger, and your engine bay looks better than ever.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 99230326839

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4.6 ★★★★★
Based on 26 reviews
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A
Verified Purchase
Amazon Customer
Phoenix, US
★★★★★ 5
All-around thumbs up!
Size: 934W-Z, Color: Black
So far, so awesome. Easy to assemble, comfortable, arrived quickly and is exactly what I was looking for. I have a tall work bench in my new studio so I needed a chair that we could allow me to sit higher than a regular office chair and allow me to get off my feet after standing on the concrete floor. Plus its a nice looking chair that I am sure will last a long time. I love the flip-up arms and the lumbar support. This is just right!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
D
Verified Purchase
Danielle Chen
Cuba, US
★★★★★ 5
Perfect Balance of Comfort, Support, and Style!
Size: 934-Z, Color: Black, Size: 934-Z, Color: Black
I’ve been using this chair for a few weeks now, and I’m genuinely impressed with how much of a difference it’s made in my workspace. The mesh back is one of my favorite features—it offers excellent breathability and prevents that sticky, overheated feeling you sometimes get with solid-back chairs, even after sitting for hours. The seat cushion is firm enough to give proper support but still has enough give to keep me comfortable through long workdays. It feels like the perfect middle ground between soft and supportive. The adjustable foot ring has been a complete game changer for me. I use a taller desk setup, and having somewhere to rest my feet makes a huge difference in posture and overall comfort. Whether I’m sitting upright for focused work or leaning back to read, it’s always at the right height. The flip-up armrests are another smart design choice. When I’m typing, I like to have them down for support, but when I’m done, I can flip them up and push the chair neatly under my desk—saving space and keeping things tidy. The casters roll smoothly on both hardwood and rugs, so I can move around easily without scraping the floor or getting stuck. The overall build quality feels solid and sturdy, with no wobbles or creaks. Assembly was surprisingly quick—everything was clearly labeled, the parts felt durable, and it only took me about 20 minutes from opening the box to sitting in the chair. The sleek, modern look is another big plus—it blends in perfectly with my home office décor without feeling bulky or taking up too much visual space. If you’re looking for a chair that combines comfort, ergonomic support, durability, and style, I can’t recommend this one enough. It’s equally great for work, studying, or just relaxing at your desk, and it’s definitely been worth every penny.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 12, 2025
S
Verified Purchase
sleepywan
San Leandro, US
★★★★★ 3
OK for the price, but overall comfort is avergae
Size: 934-Z, Color: Mustard
Easy to put together, color (mustard) accurate to images, and while I understand this is not a high-end chair, I feel like it still needs to be rated for its quality. Pros: the seat cushions are fairly comfortable and it rolls well. Adjustable footrest is easy enough and mostly sturdy. Cons: For a tall office chair, it doesn't go up high enough. I actually had to lower my standing desk to sit at it, which then isn't where I want it when I'm standing now. It's also a bit wobbly. The seat area's attachment to the post isn't as solid as it should be for a tall chair, so while sitting, it does tend to lean/slope forward and wobble side to side. The lumbar support is not adjustable, so I'm not even really sure what it does. And the armrests are not very comfortable to use. Since they are hard plastic, they are just a bit too rigid to rely on for any comfort. They are basically there to hold on to when you're getting out of the chair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
M
Verified Purchase
Mel
Phoenix, US
★★★★★ 4
Good Value for a Tall Chair
Size: 934W-Z, Color: White
I have received this chair just today and would like to give my first impressions of it. Height is super adjustable as well as the foot rest. My desk is very tall (~34 inches vs standard ~29 inches) and does not suit a standard height chair. This chair's height is enough to sit comfortably at mybut also still having adjustment to be even higher. Lumbar support is a manual adjustment that can be adjusted by sliding the lumbar piece up or down and it seems it can be tiled as well. No reclining feature or slight backrest tilt adjustment. I'm used to my chairs reclining so it feels a little awkward siting in a flat base and straight backrest. I feel like I'm sitting too forward or leaning forward slightly but is probably something I can get use to. Easy to put together and feels very sturdy. Plastic parts of chair are made from a really sturdy plastic, like playhouse plastic materials. Wheels roll around carpet easily. Mesh seems to be a strong material, though the mesh feels kind itchy on bare skin. Overall, I think this is a good chair to get if you're needing a tall chair for a good value and can sacrifice no backrest tilt.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 3, 2025
T
Verified Purchase
Tram
Massapequa, US
★★★★★ 5
Excellent value for money!
Size: 934W-Z, Color: Black, Size: 934W-Z, Color: Black
I absolutely love this office chair! I needed a chair that could support my standing desk without sacrificing comfort, and this one completely exceeded my expectations. It's incredibly sturdy and durable, well-made, and the height adjustment is super convenient, making it easy to find the perfect fit. Even during long hours of work, the seat is comfortable, and the ergonomic design effectively reduces pressure on my back and legs. I love its clean, modern look—it fits my home office perfectly. Assembly was quick and easy, and for this price, the quality is absolutely fantastic!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026

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