Buick Encore Water Outlet and Thermostat Housing Replacement Guide (2013-2021)
If you're finding coolant puddles under your 1.4L Encore, the original plastic water outlet is the most likely reason.
- The original plastic water outlet is a known high-failure part on the 1.4L Encore engine.
- Always upgrade to an aftermarket aluminum housing for a durable, long-term fix.
- Symptoms include visible coolant leaks, overheating, and a P0128 check engine light code.
- This is a DIY-friendly repair for those with some experience, but professional replacement is also an option.
Is Your Buick Encore Leaking Coolant? Check the Water Outlet.
A common and well-documented issue on the 2013-2021 Buick Encore with the 1.4L turbo engine is the failure of the original plastic water outlet housing. Over many cycles of heating up and cooling down, the factory plastic can become brittle, leading to cracks and warping. This results in coolant leaks that can range from a slow, hard-to-find seep to a sudden, major failure of a hose connection. Ignoring this can lead to engine overheating and severe, expensive damage.
OEM Plastic vs. Aftermarket Aluminum
The original equipment (OEM) water outlet from GM is made of plastic, which is the root cause of this common failure. Aftermarket manufacturers identified this weakness and now offer upgraded versions made from cast aluminum. For this specific part on the Encore, choosing an aftermarket aluminum replacement is widely considered a permanent upgrade, not a downgrade in quality. These aluminum housings are far more resistant to cracking and warping from engine heat, providing a much more durable and reliable solution.
Choosing the Right Aftermarket Water Outlet
When shopping for a replacement, you will primarily find two types of aftermarket parts:
- Standard Aftermarket (Plastic): Some aftermarket brands offer a direct replacement made of plastic, similar to the original. While it will solve the immediate leak, it is likely to fail again in the future for the same reason as the original part.
- Upgraded Aftermarket (Aluminum): This is the highly recommended option. Aftermarket brands like Dorman, SKP, and others offer aluminum versions that eliminate the original design flaw. These often come as a complete kit, including a new thermostat, temperature sensor, gasket, and mounting bolts, making the job easier.
Pro Tip: Given the small price difference, always choose an aluminum water outlet kit. It provides a long-term solution to a known problem with the 1.4L engine and offers peace of mind against future leaks.
Cost of Replacing a Buick Encore Water Outlet
The cost can vary depending on whether you do the work yourself or take it to a repair shop. The part itself is affordable, with labor making up a significant portion of the professional cost.
| Part/Service | Estimated Cost |
|---|---|
| New OEM (Plastic) | $60 - $100 |
| New Aftermarket (Aluminum Upgrade) | $30 - $90 |
| Shop Labor | $150 - $300 |
| Total Professional Replacement | $180 - $400 |
Frequently Asked Questions
Is there a recall on the Buick Encore water outlet?
No, there are no specific safety recalls issued by the NHTSA for the plastic water outlet on the 2013-2021 Buick Encore, despite it being a very common failure point. Repairs are the owner's responsibility.
Can I replace just the thermostat or sensor?
The thermostat and temperature sensor are integrated into the water outlet housing. Because the housing itself is the part that fails, and complete aftermarket kits are affordable, it is standard practice to replace the entire assembly at once.
What coolant should I use for my Buick Encore?
The 1.4L engine requires a specific coolant that meets the GM Dex-Cool specification. This is typically an orange-colored Organic Acid Technology (OAT) coolant. Always use the correct type to prevent damage to your cooling system.
Is this a difficult DIY job?
For a person with moderate mechanical skills and the right tools (like hose clamp pliers), this is a very manageable DIY repair that can be done in an afternoon. Many step-by-step videos are available online that show the process on the Encore and similar vehicles like the Chevy Cruze and Sonic.
Helpful Videos
![2011-2019 Chevrolet Cruze 1.4 liter Water Pump ,Thermostat and Water Outlet [Complete DIY Tutorial]](https://img.youtube.com/vi/2DOPBFnJHWo/mqdefault.jpg)
Technical Specifications
OEM Part Numbers: 25193922 55565334 55593034
Fits 2013-2021 Buick Encore models with the 1.4L LUV Turbo engine. The housing connects the upper radiator hose, a heater core hose, and a coolant reservoir bleed hose. It is mounted to the cylinder head and includes the thermostat and coolant temperature sensor.
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Buick Encore: