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If your Chevrolet Traverse shows temperature swings or runs too hot or cold, the thermostat is often the culprit. Choosing the right thermostat matters because a correct-fit unit restores consistent engine temperature, helps the heater perform properly, and prevents long-term engine wear. This guide shortlists the top options for Chevrolet Traverse owners and explains the key factors we used to evaluate them, such as fitment accuracy and thermal response. Read on for straightforward guidance to help you pick a replacement that matches your vehicle and driving needs before the product list.
Looking for other parts? See all Chevrolet Traverse parts & accessories.
Top Picks at a Glance
| Best Reviewed A top-rated pick with lots of positive feedback | ACDelco GM Original Equipment 187°F Engine Coolant Thermostat Kit (131-160) |  |
| Most Popular A crowd favorite that many people choose with confidence | Gates 33910 Integrated Housing Engine Coolant Thermostat |  |
| Best Quality Built to a higher standard if you want something more solid | GM Genuine Parts 131-180 Engine Coolant Thermostat |  |
| Best Budget The cheapest option that still gets the job done reliably | Chamixx 180°F Cooling Thermostat with Gasket (719-180) |  |
| Most Sold A high-volume bestseller chosen again and again | Dorman Integrated Thermostat Housing Assembly |  |
| Best Value for Money The sweet spot between price and what you get | Edelbrock 8604 High-Flow 180°F Thermostat (53 mm) |  |
| Best Overall The best all-around choice for most situations | GM Genuine Parts Engine Coolant Thermostat Water Inlet Assembly |  |
1. ACDelco GM Original Equipment 187°F Engine Coolant Thermostat Kit (131-160)
| Manufacturer Part Number | 131-160 |
|---|---|
| OEM Part Number | 89018168 |
| Included Components | Thermostat, gasket |
| Temperature Rating | 187 Degrees |
This ACDelco GM Original Equipment thermostat kit replaces the engine coolant thermostat in GM vehicles and comes with a gasket for a direct replacement. Installed in the thermostat housing, it controls coolant flow to help the engine reach and maintain normal operating temperature; for a Chevrolet Traverse this means restoring correct warm-up and preventing overheating when the original thermostat fails. The part is manufactured to GM specification for fit, form, and function, so it installs like a factory replacement and avoids modification or adaptation. Buyers can expect reliable temperature control and long service life consistent with GM-recommended parts. Limitations: the kit is a single-purpose replacement part so it does not address related components like hoses or the water pump, and proper installation requires basic mechanical access to the housing and careful bleeding of the cooling system to avoid air pockets.
Best for: Reliability-focused buyers who prioritize factory-quality replacements and predictable long-term performance for routine maintenance on a Chevrolet Traverse.
Less Ideal for: Buyers looking for an all-in-one cooling system refresh or those who prefer performance aftermarket thermostats with altered temperature ratings should consider other options.
- Made to GM specification for a factory-quality fit and function
- Includes thermostat and gasket so no additional sealant or parts are required for replacement
- Consistent temperature regulation that restores normal engine warm-up and helps prevent overheating
- Only replaces the thermostat and gasket so worn hoses or a failing pump still need separate attention
Verdict Choose this ACDelco GM thermostat kit if you want a factory-spec replacement that reliably restores correct coolant control on a Chevrolet Traverse.
2. Gates 33910 Integrated Housing Engine Coolant Thermostat
| Manufacturer Part Number | 33910 |
|---|---|
| Manufacturer | GATES |
| OEM Part Number | 12562740, 12571261 |
| Included Components | Engine Coolant Thermostat |
| Material | Aluminum |
This Gates 33910 is an integrated housing thermostat assembly that replaces the stock thermostat on compatible Chevrolet Traverse engines. It combines the thermostat and housing into a single unit and uses a reverse-poppet design with a jiggle-pin valve and a leakage-reduction valve to help the valve stay closed until the correct opening temperature. Install is typical for a thermostat housing swap and is usually done when replacing a leaking housing or during water-pump service. The machined aluminum housing and factory-style fitment aim to simplify installation and reduce leakage compared with separate thermostat and housing repairs. Practical benefits include correct temperature control for emissions and engine longevity and fewer coolant-surface mating points to seal. Limitations are that this is a specific vehicle-fit part so you must confirm it matches your Traverse engine variant and accessory holes, and integrated housings mean replacing the whole assembly rather than just the valve if a future failure occurs.
Best for: Buyers who prioritize convenience and a straightforward, factory-style replacement that reduces installation steps and seals when servicing a Chevrolet Traverse.
Less Ideal for: Owners who prefer to replace only the thermostat valve or need a non-housing replacement option should consider separate thermostat components instead.
- Integrated housing and thermostat simplifies installation and reduces separate sealing surfaces.
- Machined aluminum housing improves durability and appearance compared with stamped housings.
- Reverse-poppet design with leakage-reduction valve helps keep the thermostat closed when cold to reduce premature coolant flow.
- Designed as a direct replacement for specific Chevrolet Traverse engine configurations for easier fitment.
- When the thermostat or housing fails you must replace the entire assembly rather than just the valve.
- Fitment is vehicle-specific so it requires verification against your Traverse engine and OEM part numbers before purchase.
Verdict A convenient, factory-style integrated thermostat housing for Chevrolet Traverse owners who want an easy, leak-resistant replacement but are willing to replace the whole assembly if it fails.
3. GM Genuine Parts 131-180 Engine Coolant Thermostat
| Brand | GM GENUINE PARTS |
|---|---|
| Model Name | 131-180 |
| Manufacturer Part Number | 25200455 |
| Included Components | Engine Coolant Thermostat / Water Inlet Assembly |
This GM Genuine Parts thermostat housing assembly is a factory-quality replacement designed and validated by GM for use in compatible Chevrolet engines. It combines the thermostat and coolant outlet housing into a single unit that restores proper engine temperature control and includes the necessary gasket for installation. Typical use is a direct swap when the original thermostat is sticking, leaking, or causing poor cabin heat and cold-start drivability. The assembly is machined to match factory fit and sensor locations so temperature sensors and coolant routing work as intended with the vehicle control system. Practical benefits are straightforward: OEM fit reduces installation hassle, it corrects heat and cold-start symptoms caused by a failed thermostat, and it returns the cooling system to factory-spec operation. Limitations are that this is a vehicle-specific factory replacement so verify fitment for your Chevrolet Traverse year and engine before ordering, and long-term durability will still depend on installation quality and the cooling system condition.
Best for: Performance-oriented Chevrolet owners focused on maintaining factory cooling performance and consistent engine behavior during spirited driving and cold starts.
Less Ideal for: Buyers looking for a universal or multi-vehicle aftermarket solution should consider alternative thermostats that advertise broader fitment or upgraded performance features.
- Factory-quality part designed and validated by GM for correct fit and function
- Included gasket and integrated housing simplify replacement and reduce leak points
- Restores proper engine temperature control and resolves cold-start and cabin heat issues
- Machined exterior and matching sensor locations for straightforward installation
- Vehicle-specific fit requires confirming correct year and engine application for the Traverse
- Long-term lifespan depends on surrounding cooling-system condition and proper installation
Verdict Choose this GM-validated thermostat housing assembly when you want a factory-match replacement to restore proper cooling and cold-start behavior in a Chevrolet Traverse.
4. Chamixx 180°F Cooling Thermostat with Gasket (719-180)
| Brand | Chamixx |
|---|---|
| Model | Cooling Thermostat |
| Manufacturer Part Number | 719-180 |
| Temperature Rating | 180°F |
This Chamixx 180°F cooling thermostat is a straightforward replacement part intended to restore proper coolant flow and temperature control in a Chevrolet Traverse. It installs in place of the factory thermostat and is supplied with a gasket to seal the housing. The thermostat is marketed as a direct replacement with factory-quality function and is machined for consistent fit. In practice this part performs the single job of opening at around 180°F to allow coolant circulation, which helps the engine reach and maintain normal operating temperature. The practical benefits are low cost, simple plug-and-play installation for routine thermostat swaps, and a included gasket to avoid an extra parts purchase. Limitations to note are variable long-term reliability reported by some buyers and a few reviews mentioning missing or short-lived components, so expect to verify the gasket and inspect the unit before installation. For a budget repair where upfront cost matters, this thermostat covers the essential function but may not match the longevity of higher-end replacements.
Best for: Budget-conscious owners seeking a low-cost, no-frills replacement to get a Chevrolet Traverse back to normal operating temperature with minimal upfront expense.
Less Ideal for: Owners prioritizing long-term durability or seeking a factory-quality OEM match should consider higher-end or OEM-style thermostats instead.
- Includes gasket so you can replace the thermostat and seal the housing in one visit
- Machined exterior for consistent fit and straightforward installation
- Low-cost option that restores basic temperature control function
- Some customers report missing gasket or early failure so quality may vary
- Not positioned as a long-life or premium OEM-matching unit
Verdict A very affordable, no-frills 180°F thermostat that can quickly restore proper cooling function in a Chevrolet Traverse but may have variable long-term reliability.
5. Dorman Integrated Thermostat Housing Assembly
| Manufacturer | Dorman Products |
|---|---|
| Model | Dorman 902-2090: Integrated Thermostat Housing Assembly |
| Exterior | Machined |
| OEM Part Number | 815-207; 81507; SK34836; 12666569; 12674639 |
This integrated thermostat housing assembly replaces the factory water outlet and thermostat on compatible GM vehicles and is intended as a direct-fit replacement for factory-style installations. It is typically used when the original housing cracks, leaks, or the thermostat fails and includes the thermostat inside the housing to simplify the swap and reduce leak points. Notable attributes are a machined exterior and engineering aimed at withstanding extreme temperature cycles to extend service life. In practice the part lets you swap the entire assembly in one job rather than installing a separate thermostat, which speeds installation and reduces gasket sealing steps. Buyers should note fitment must be verified for the specific model and year; this unit is designed for certain Chevrolet and GM applications and may require minor coolant handling during installation. Expect factory-like fit, simpler installation for professional or DIY mechanics, and the usual caution to properly bleed and top off the cooling system after replacement.
Best for: A risk-averse mainstream buyer looking for a dependable, factory-style replacement who prioritizes proven fit and reliability over aftermarket performance modifications.
Less Ideal for: People seeking a performance or modified cooling solution or those who want a universal or multi-vehicle part should look at purpose-built alternatives.
- Integrated housing and thermostat simplifies replacement and reduces assembly steps
- Machined exterior and materials engineered to resist temperature-related cracking
- Designed to match factory fit for straightforward installation
- Widely reported to fit and function like the OEM part on supported vehicles
- Fitment is vehicle- and year-specific so verification is required before purchase
- Installation requires draining or losing some coolant and system bleeding to avoid air pockets
Verdict A practical, factory-style integrated thermostat housing assembly for buyers who want a direct-fit, reliable replacement after confirming vehicle-year compatibility.
6. Edelbrock 8604 High-Flow 180°F Thermostat (53 mm)
| Opening Temperature | 180 Deg F |
|---|---|
| Screen Size | 53 Millimeters |
| Brand | Edelbrock |
| Model Name | 8604 |
The Edelbrock 8604 is a 180°F, 53 mm high-performance thermostat intended as a vehicle-specific replacement to help stabilize engine temperature. Installed in place of a factory thermostat, it opens at the specified temperature to allow coolant circulation and is marketed for better flow than standard units. In use it provides consistent temperature control for engines that tend to run hot, and many customers report the part fits and functions reliably with classic and modern GM small-block applications. The unit is compact, straightforward to install in the Traverse thermostat housing, and does not require special tools. Limitations include the fixed 180°F opening point, so it is not adjustable, and some users question whether its "high-flow" claim yields a dramatic change versus a quality factory replacement. Expect a simple, durable upgrade that focuses on consistent operating temperature rather than variable tuning or electronic control features.
Best for: A practical optimizer who wants a reliable, no-frills thermostat that restores stable operating temperature in a Chevrolet Traverse without spending extra on electronic or adjustable units.
Less Ideal for: Drivers seeking adjustable temperature control, electronic thermostats, or proven large increases in coolant flow should consider other specialist options.
- Vehicle-specific fit for direct replacement in compatible thermostat housings
- Consistent 180°F opening point helps stabilize operating temperature
- Compact 53 mm size fits common GM thermostat bores
- Built by a reputable performance parts maker with generally positive user reports
- Fixed opening temperature with no adjustability
- Not all buyers see a large increase in coolant flow compared with a good factory-quality thermostat
Verdict A straightforward, vehicle-specific 180°F replacement that gives dependable temperature control for a Traverse at a sensible value.
7. GM Genuine Parts Engine Coolant Thermostat Water Inlet Assembly
| Brand | GM GENUINE PARTS |
|---|---|
| Manufacturer | ACDelco |
| Manufacturer Part Number | 12600172 |
| Automotive Fit Type | Vehicle Specific Fit |
| Model | Water Inlet Assembly |
This GM Genuine Parts thermostat water inlet assembly replaces the thermostat housing and thermostat as a single unit, restoring coolant flow control and the engine fill neck in one step. It is intended for use when the original housing is leaking, cracked, or when replacing the water pump on compatible Chevrolet Traverse engines where this housing design applies. The part is machined and supplied by a GM-authorized brand, so fit and internal thermostat calibration match factory expectations where the listing fits. Users report it installs cleanly and often includes the thermostat and gasket, which reduces parts hunting during a job. A practical limitation is vehicle-specific fit: some model-year and engine combinations on GM trucks use integrated or different housings, so you must confirm Traverses with the same housing design before buying. Hardware is not always included, so expect to source bolts or seals in some cases.
Best for: A balanced all-round buyer who prioritizes a factory-quality, direct-replacement part for routine cooling system repairs on a Chevrolet Traverse and values reliability over lowest cost.
Less Ideal for: Drivers looking for a universal or multi-vehicle aftermarket solution, or those who need a part guaranteed to include every installation fastener, should consider other options.
- Factory-quality design matched to GM specifications for a close fit on compatible applications
- Includes thermostat and gasket in many cases to simplify replacement
- Machined exterior reduces the need for heavy modification during installation
- Broad positive owner feedback indicating consistent reliability when it fits
- Not universally compatible across all model years and engine variants, so fitment must be verified
- Hardware such as mounting bolts may not be included with every unit
Verdict Choose this GM Genuine Parts thermostat water inlet assembly when you want a factory-matched, reliable replacement for a compatible Chevrolet Traverse, but confirm fitment and hardware needs before ordering.
Choosing the Right Chevrolet Traverse Thermostat: Key Factors to Consider
Fitment and Compatibility
Correct fitment is the single most important factor because the thermostat must match the Chevrolet Traverse housing, mounting points, and coolant passages. A mismatched unit can cause leaks, improper sealing, or restricted flow, which leads to temperature control issues. Verify housing type, bolt pattern, and any integrated sensors so the part mates cleanly with existing components.
Compatibility also affects installation time and whether you need additional gaskets or adapters. Choosing a thermostat specified for your model year and engine avoids surprises during installation and reduces the chance of return or rework.
Opening Temperature and Thermal Response
The thermostat's opening temperature determines when coolant begins circulating through the radiator, directly influencing engine warm-up and operating temperature. A thermostat that opens too early can cause the engine to run cold, reducing efficiency and cabin heat. One that opens too late can cause overheating and stress on cooling system components.
Thermal response, or how quickly the valve reacts around its rated temperature, affects temperature stability during transient conditions like city driving or towing. Look for thermostats with well-documented calibration and consistent operational behavior.
Build Quality and Materials
Durable materials resist corrosion and mechanical wear inside the cooling system. Components like the valve, spring, and frame should be made from materials suited to prolonged exposure to coolant and temperature cycling. Poor-quality metals or plastics can warp or corrode, leading to valve sticking or failure.
Higher build quality also reduces the chance of debris-induced sticking and helps maintain a tight seal over time, which supports long-term cooling system reliability.
Seal Integrity and Gasket Design
A reliable seal between the thermostat and housing prevents coolant leaks that can lower system pressure and cause overheating. Pay attention to the gasket type, whether an O-ring or molded gasket is supplied, and how the seal interfaces with the housing surface. Improper or missing sealing hardware is a common cause of post-installation leaks.
Consider thermostats that include compatible gaskets or clearly specify the recommended sealant and torque values to ensure a leak-free installation.
Installation Ease and Serviceability
Thermostat replacements are often performed outside a full shop environment, so installation simplicity matters. Units designed for straightforward drop-in replacement reduce installation time, need fewer additional parts, and lower the chance of installation error. Features like integrated housings or simplified sensor ports can help, but may also affect future serviceability.
Assess whether the thermostat requires special tools, any recommended torque settings, and access to replacement gaskets, so routine servicing remains practical.
Reliability Under Load and Climate
The thermostat must perform across a range of operating conditions, including heavy loads, highway driving, and varying ambient temperatures. A reliable unit maintains stable engine temperature during towing, steep grades, or stop-and-go traffic. Cold climates demand thermostats that do not stick closed at low temperatures, while hot climates require consistent opening under sustained heat.
Consider the thermostat's track record for consistent operation in the specific climate and driving scenarios you encounter to reduce the likelihood of temperature-related failures.
FAQ
What are common signs of a bad thermostat in a Chevrolet Traverse?
Common signs include erratic temperature gauge readings, the engine taking unusually long to warm up, or the engine running hotter than normal. You might also notice poor cabin heater performance or coolant leaks around the thermostat housing. These symptoms often indicate the valve is stuck open, stuck closed, or the housing seal has failed.
How do I test a thermostat without removing it?
You can observe temperature behavior during a warm-up: if the engine reaches operating temperature too slowly or the heater stays cool, the thermostat may be stuck open. Watching the upper radiator hose for when it warms can indicate when coolant begins circulating. These checks are indicative but not definitive; a bench test after removal provides a more accurate result.
Should I replace the thermostat when I service the cooling system?
Replacing the thermostat during major cooling system service is often recommended because it is an inexpensive wear item that affects system performance. Installation during related repairs reduces labor duplication and helps ensure the system has a reliable valve and fresh seals. The decision depends on the thermostat's age, condition, and any symptoms observed.
Can a thermostat cause the engine to overheat?
Yes, a thermostat that is stuck closed or that opens at too high a temperature can prevent coolant flow through the radiator and lead to overheating. Other issues can contribute to overheating as well, but thermostat failure is a common and straightforward component to check when diagnosing high temperatures.
What should I do if I find a thermostat housing seal leak?
If you detect coolant at the housing, first inspect the gasket or O-ring for damage and confirm proper torque on the mounting bolts. Replace the gasket or seal if it shows wear, and verify the housing surface is clean and flat. If the housing itself is cracked or damaged, it may need replacement to ensure a reliable seal.
How important is matching the thermostat part number fitment?
Matching the correct part number is important because it ensures the thermostat matches the Chevrolet Traverse's housing, opening temperature, and any integrated sensor ports. Using a part without clear fitment data increases the risk of installation issues, coolant leaks, or incorrect temperature regulation.
How We Chose the Best Chevrolet Traverse Thermostat
We focused this roundup on thermostats that specifically fit the Chevrolet Traverse and meet the cooling system requirements of its engine family. Our selection criteria prioritized precise fitment and compatibility with factory housings, accurate opening temperature and thermal response, durable materials and corrosion resistance, and reliable sealing to prevent coolant leaks. We also considered ease of installation, availability of OEM-style housings and gaskets, and documented serviceability for routine maintenance. We excluded units that lacked clear fitment data for the Traverse, components without proper sealing hardware, or thermostats with unverified opening-temperature specs. The final picks balance mechanical reliability, correct temperature calibration, and practical installation considerations relevant to owners and independent technicians.
Our full evaluation process is outlined in our review methodology.
Conclusion
When selecting a Chevrolet Traverse thermostat, prioritize correct fitment and the thermostat's opening-temperature calibration. Those two dimensions most directly affect engine warm-up, heater performance, and the risk of overheating or running cold. Also weigh build quality, sealing hardware, and ease of installation. Addressing these tradeoffs will help you choose a reliable replacement that restores stable engine temperature and reduces the chance of future cooling system service.
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