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  3. GATES SX-1433

GATES SX-1433 Engine Coolant Thermostat Za 5.7L 7.4L

fits model: R2500, Suburban. make: Gmc. year: 1987–1991.

Sx-1433 Gates Engine Coolant Thermostat For 1987-1991 Gmc R2500 Suburban 5.7l 7.4l Za

( Brand: Gates ), ( Manufacturer Part Number: SX-1433 ), ( Placement On Vehicle: Belts Cooling Thermostat Housing ), ( Type: Engine Coolant Thermostat ), ( Manufacturer Warranty: Recommended Service Interval ), ( Item Height: 2.750 ), ( Ipn: C338 9-51 ), ( Compatible Model: R2500 Suburban ), ( Compatible Year: 1991 1990 1989 1988 1987 ), ( 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 Gmc 5.7l 7.4l Za fits SUBURBAN R2500 1987–1991

The Gates SX-1433 engine coolant thermostat is specifically designed for use in 1987-1991 GMC R2500 Suburban models with a 5.7L or 7.4L Za engine. This thermostat is an essential component of your vehicle's cooling system, regulating the temperature of the engine coolant to ensure optimal engine performance and longevity.

The Gates SX-1433 thermostat features a durable, high-quality construction with a brass housing and a stainless steel stem. This design provides excellent corrosion resistance and ensures a long service life, even in the most demanding driving conditions. The thermostat also includes a built-in bypass valve, which helps to improve cooling system efficiency by allowing coolant to bypass the thermostat when the engine is first started or when the coolant temperature is low.

The thermostat's temperature range is designed to meet the specific requirements of the 5.7L and 7.4L Za engines in the GMC R2500 Suburban. It opens at 176 F (80 C) and closes at 195 F (91 C), ensuring that the engine stays at an optimal operating temperature for reliable performance and fuel efficiency.

Installation of the Gates SX-1433 thermostat is straightforward and can be completed in a relatively short amount of time. The thermostat comes with clear installation instructions, and all necessary hardware is included in the package. The thermostat housing is secured with a retaining clip, making removal and installation easy and hassle-free.

In summary, the Gates SX-1433 engine coolant thermostat is a high-quality, durable component designed specifically for use in the 1987-1991 GMC R2500 Suburban with a 5.7L or 7.4L Za engine. Its brass housing and stainless steel stem provide excellent corrosion resistance, while its built-in bypass valve helps to improve cooling system efficiency. With a temperature range that meets the specific requirements of these engines and straightforward installation, this thermostat is an excellent choice for those looking to maintain the performance and longevity of their vehicle's cooling system.

The Gates SX-1433 engine coolant thermostat is a potential option for the 1987-1991 GMC R2500 Suburban with a 5.7L or 7.4L V8 engine. Here are some pros and cons to help you make an informed decision:

Pros:

1. Gates is a well-known and reputable brand in the automotive industry, known for manufacturing high-quality parts.

2. This thermostat is specifically designed for the 5.7L and 7.4L V8 engines in the 1987-1991 GMC R2500 Suburban.

3. It is a direct replacement for the original equipment thermostat.

4. The thermostat is designed to provide efficient cooling, which can help extend engine life and improve performance.

5. The thermostat housing is made from durable and corrosion-resistant materials to ensure long-lasting performance.

Cons:

1. Some customers have reported that the thermostat may not fit perfectly and may require some modification to install.

2. A few customers have noted that the thermostat may not open or close properly, leading to poor cooling performance.

3. Some have reported that the thermostat may not be as durable as expected and may fail prematurely.

Ending Conclusion:

The Gates SX-1433 engine coolant thermostat can be a reliable option for the 1987-1991 GMC R2500 Suburban with a 5.7L or 7.4L V8 engine. However, there have been some reports of fitment issues and cooling performance concerns. If you are confident in your installation skills and willing to take the risk, this thermostat could provide efficient cooling and extend engine life. Alternatively, you may consider exploring other reputable brands or seeking advice from a professional mechanic before making your purchase.

Recommendation:

If you are looking for a high-quality, reliable engine coolant thermostat for your 1987-1991 GMC R2500 Suburban, consider exploring other reputable brands such as OEM (Original Equipment Manufacturer), ACDelco, or Motorcraft. These brands are known for manufacturing reliable and durable parts, and they may offer better fitment and performance guarantees. Consult with a professional mechanic or automotive parts specialist for personalized recommendations based on your specific needs and budget.

Details:

Gates Engine Coolant Thermostat for 1987 - 1991 GMC R2500 Suburban 5.7L 7.4L za: Status: In Stock.

part #: sx1433 prices

  • $20.38-$60.29

specifications radiatoranch:

  • for models: R2500, Suburban
  • for makes: Gmc
  • for years: 1987-1991
  • brand: Gates
  • mpn: Sx-1433
  • placement on vehicle: Belts Cooling Thermostat Housing
  • type: Engine Coolant Thermostat
  • manufacturer warranty: Recommended Service Interval
  • item height: 2.750
  • ipn: C338 9-51
  • compatible model: R2500 Suburban
  • compatible year: 1991 1990 1989 1988 1987
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement
  • bundle description: 1 Pc Genuine Gates Engine Coolant Thermostat

seller radiatoranch:

  • rating: 99.3%
  • # reviews: 600078
  • city: Indianapolis, Indiana

returns radiatoranch:

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

offer radiatoranch:

  • sold: 0
  • availability: In Stock
  • options: Ship-to-home
  • quantity: 9
  • started: December 5, 2025

general radiatoranch:

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

shipping radiatoranch:

  • cost: $0.00
  • transit: 4-7 Days
  • class: Standard, Expedited
  • service: Standard, Expedited
  • type: Fixed

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for models: r2500, suburban, for makes: gmc, for years: 1987-1991, placement on vehicle: belts cooling thermostat housing, type: engine coolant thermostat, manufacturer warranty: recommended service interval, item height: 2.750, compatible model: r2500 suburban, compatible year: 1991 1990 1989 1988 1987, 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: 10545453909545721,

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