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  3. GATES SX-6439

GATES SX-6439 Engine Coolant Thermostat 2.5L 2.8L 3.8L

fits model: Sp, Phoenix. make: Pontiac. year: 1977–1984.

Sx-6439 Gates Engine Coolant Thermostat For 1977-1984 Pontiac Phoenix 2.5l 2.8l 3.8l Sp

( Brand: Gates ), ( Manufacturer Part Number: SX-6439 ), ( Type: Engine Coolant Thermostat ), ( Placement On Vehicle: Belts Cooling Thermostat Housing ), ( Manufacturer Warranty: Recommended Service Interval ), ( Item Height: 2.750 ), ( Ipn: C689 75-33 ), ( Compatible Model: Phoenix ), ( Compatible Year: 1984 1983 1982 1981 1980 1979 1978 1977 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Gates Engine Coolant Thermostat )

Review GATES Engine Coolant Thermostat For Pontiac 2.5l 2.8l 3.8l fits PHOENIX SP 1977–1984

The Gates SX-6439 engine coolant thermostat is a crucial component in maintaining the optimal operating temperature of your 1977-1984 Pontiac Phoenix with 2.5L, 2.8L, or 3.8L engines. This thermostat ensures that the engine coolant circulates efficiently between the engine and the radiator, preventing the engine from overheating and protecting it from potential damage.

The Gates SX-6439 thermostat is designed with a durable, high-temperature housing made from stainless steel. This housing provides excellent resistance to corrosion and heat, ensuring a long service life. The thermostat also features a precise temperature sensor, which allows the engine management system to accurately control the engine temperature.

The thermostat's internal valve is made from a heat-resistant material, such as ceramic or metal, and is designed to open and close at a precise temperature. This ensures that the coolant begins to circulate when the engine reaches operating temperature, and that excess heat is dissipated when the engine is under heavy load or in stop-and-go traffic.

The Gates SX-6439 engine coolant thermostat is easy to install and comes with all necessary hardware, including mounting bolts and gaskets. The thermostat's inlet and outlet connections are clearly labeled, making installation a straightforward process.

In summary, the Gates SX-6439 engine coolant thermostat is an essential component for maintaining the optimal operating temperature of your 1977-1984 Pontiac Phoenix with 2.5L, 2.8L, or 3.8L engines. Its durable, high-temperature housing, precise temperature sensor, and heat-resistant valve ensure long service life and efficient cooling performance. The thermostat's easy installation process makes it a great choice for DIY enthusiasts or professional technicians alike.

The Gates SX-6439 engine coolant thermostat is a popular aftermarket option for Pontiac Phoenix models produced between 1977 and 1984 with 2.5L, 2.8L, and 3.8L engines. Here are some pros and cons of buying this thermostat.

Pros:

1. Durability: The Gates SX-6439 thermostat is known for its high-quality materials and robust design, which makes it more durable than the OEM (original equipment manufacturer) counterpart.

2. Improved Performance: This thermostat offers faster cooling and more consistent engine temperature, which can lead to better fuel economy and overall improved performance.

3. Cost-Effective: It is generally more cost-effective to purchase an aftermarket thermostat like the Gates SX-6439 compared to the OEM part.

4. Availability: Aftermarket parts are easier to find and purchase than OEM parts, especially for older vehicles like the Pontiac Phoenix.

Cons:

1. Installation: Installing an aftermarket thermostat may require additional time and effort compared to installing the OEM part due to differences in design and fitment.

2. Compatibility: While the Gates SX-6439 thermostat is compatible with the specified Pontiac Phoenix models, some users have reported issues with fitment or compatibility with other components in their cooling system.

3. Lack of OEM Warranty: Aftermarket parts like the Gates SX-6439 do not come with the same level of warranty coverage as OEM parts.

Conclusion:

The Gates SX-6439 engine coolant thermostat offers several advantages such as improved durability, performance, and cost-effectiveness. However, it may require additional effort for installation and comes without the same level of warranty coverage as OEM parts. Ultimately, the decision to purchase this aftermarket thermostat depends on your budget, installation capabilities, and preference for a more robust and cost-effective solution over the OEM part.

Recommendation:

If you're comfortable with performing the installation yourself or have a mechanic you trust, and you prefer a more durable and cost-effective solution, the Gates SX-6439 engine coolant thermostat is a solid choice. However, if you prefer the peace of mind that comes with an OEM warranty or if you encounter compatibility issues during installation, you may consider sticking with the OEM part.

Details:

Gates Engine Coolant Thermostat for 1977 1984 Pontiac Phoenix 2.5L 2.8L 3.8L Sp: Status: In Stock.

part #: sx6439 prices

  • $24.68-$37.10

specifications radiatoranch:

  • for models: Sp, Phoenix
  • for makes: Pontiac
  • for years: 1977-1984
  • brand: Gates
  • mpn: Sx-6439
  • type: Engine Coolant Thermostat
  • placement on vehicle: Belts Cooling Thermostat Housing
  • manufacturer warranty: Recommended Service Interval
  • item height: 2.750
  • ipn: C689 75-33
  • compatible model: Phoenix
  • compatible year: 1984 1983 1982 1981 1980 1979 1978 1977
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement
  • bundle description: 1 Pc Genuine Gates Engine Coolant Thermostat

returns radiatoranch:

  • policy: Returns Accepted
  • paid by: Seller
  • time: 30 Days

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  • other
  • wallet: Google-pay
  • credit card: Discover

shipping radiatoranch:

  • type: Fixed
  • transit: 2-6 Days
  • service: Standard, Expedited
  • cost: $0.00
  • class: Standard, Expedited

general radiatoranch:

  • Car Truck Parts Accessories > Engine Cooling Components > Radiators
  • condition: New

seller radiatoranch:

  • city: Indianapolis, Indiana
  • # reviews: 569710
  • rating: 98.8%

offer radiatoranch:

  • options: Ship-to-home
  • quantity: 9
  • started: September 16, 2025
  • sold: 0
  • availability: In Stock
for models: sp, phoenix, for makes: pontiac, for years: 1977-1984, type: engine coolant thermostat, placement on vehicle: belts cooling thermostat housing, manufacturer warranty: recommended service interval, item height: 2.750, compatible model: phoenix, compatible year: 1984 1983 1982 1981 1980 1979 1978 1977, core charge: free no core charge, fitment type: direct replacement, bundle description: 1 pc genuine gates engine coolant thermostat,
category: auto parts > car truck parts accessories > engine cooling components > radiators, sku: 9102233429105603,

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