1. Car & Truck Engine Radiators Deals
  2. sku: 11877781500286721
  3. GATES SX-7389

GATES SX-7389 Radiator Cap Pj K20 4.1L 4.3L 4.8L 5.0L 5.7L 6.2L

fits make: Chevrolet. year: 1978–1986.

Sx-7389 Gates Radiator Cap For 1978-1986 Chevrolet K20 4.1l 4.3l 4.8l 5.0l 5.7l 6.2l Pj

( Brand: Gates ), ( Manufacturer Part Number: SX-7389 ), ( Type: Radiator Cap ), ( Placement On Vehicle: Belts Cooling Hardware Fasteners Fittings ), ( Manufacturer Warranty: Recommended Service Interval ), ( Item Height: 2.750 ), ( Ipn: C142 33-35 ), ( Compatible Model: K20 ), ( Compatible Year: 1986 1985 1984 1983 1982 1981 1980 1979 1978 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Gates Radiator Cap )

Review GATES Radiator Cap For Chevrolet K20 4.1l 4.3l 4.8l 5.0l 5.7l 6.2l Pj fits 1978–1986

Introducing the Gates SX-7389 Radiator Cap, specifically designed to fit 1978-1986 Chevrolet K20 models with engines ranging from 4.1L to 6.2L and 5.7L to 5.0L, as well as the 4.3L and 4.8L Power Stroke diesel engines (PJ series). This radiator cap is an essential component of your cooling system, ensuring optimal engine performance and temperature regulation.

The Gates SX-7389 Radiator Cap boasts a durable construction, crafted from high-quality materials. Its pressure-tested design guarantees reliable sealing, preventing coolant leakage and minimizing the risk of overheating. This cap is engineered to accommodate the varying engine sizes and coolant requirements of the supported Chevrolet models.

The cap features a heavy-duty spring that maintains a consistent pressure inside the cooling system, ensuring proper coolant flow to the engine. This pressure helps to maintain an optimal operating temperature, which is crucial for efficient engine performance and longevity.

The Gates SX-7389 Radiator Cap is also adorned with an easily identifiable pressure relief valve, which releases excess coolant pressure when temperatures rise above safe levels. This safety feature helps to prevent potential damage to the engine and cooling system, ensuring your vehicle remains safe and reliable.

This radiator cap is a direct replacement, ensuring a seamless installation process. It comes with all necessary hardware for installation, making it a convenient and hassle-free solution for those in need of a radiator cap replacement.

Investing in the Gates SX-7389 Radiator Cap not only guarantees a proper fit and reliable performance but also contributes to the overall health and longevity of your Chevrolet K20 engine. Trust Gates to provide you with a top-tier cooling system component that you can count on for years to come.

The Gates SX-7389 radiator cap is a popular aftermarket option for various Chevrolet K20 engines produced between 1978 and 1986, including 4.1L, 4.3L, 4.8L, 5.0L, 5.7L, and 6.2L engines with P/N J541641. Let's discuss the potential advantages and disadvantages of purchasing this radiator cap for your Chevrolet vehicle.

Advantages:

1. Pressure Relief: The main function of a radiator cap is to regulate the coolant pressure in the engine cooling system. The Gates SX-7389 radiator cap is designed to provide the appropriate pressure relief at the required temperature, which is essential for the proper functioning of the cooling system.

2. Durability: The Gates SX-7389 radiator cap is made from high-quality materials, ensuring long-lasting performance. It is built to withstand the harsh conditions of continuous engine operation, making it an excellent investment for your vehicle.

3. Easy Installation: Installing the Gates SX-7389 radiator cap is a relatively simple process. You do not need any specialized tools or extensive mechanical knowledge to replace the old cap with the new one.

Disadvantages:

1. Cost: The Gates SX-7389 radiator cap may be more expensive than some OEM (original equipment manufacturer) alternatives. However, its higher price point is often justified by its superior quality and durability.

2. Potential Fitment Issues: While the Gates SX-7389 radiator cap is designed to fit various Chevrolet K20 engines, there may be some instances where it does not fit perfectly. In such cases, you may need to make minor modifications to ensure a proper fit.

3. No Temperature Gauge: Unlike some advanced radiator caps, the Gates SX-7389 does not come with a built-in temperature gauge. This means you will need to rely on other methods, such as the temperature gauge on your dashboard, to monitor the cooling system's temperature.

Conclusion:

The Gates SX-7389 radiator cap offers several advantages, including pressure relief, durability, and easy installation. However, it also comes with potential disadvantages, such as a higher cost and potential fitment issues. Ultimately, the decision to purchase this radiator cap depends on your specific needs, budget, and preferences. If you prioritize long-term performance and durability, the Gates SX-7389 radiator cap is an excellent choice. If you are looking for a more budget-friendly option, you may want to consider an OEM radiator cap or explore alternatives from other manufacturers.

Details:

part #: sx7389 prices

  • $23.39-$36.69

specifications radiatoranch:

  • for makes: Chevrolet
  • for years: 1978-1986
  • brand: Gates
  • mpn: Sx-7389
  • type: Radiator Cap
  • placement on vehicle: Belts Cooling Hardware Fasteners Fittings
  • manufacturer warranty: Recommended Service Interval
  • item height: 2.750
  • ipn: C142 33-35
  • compatible model: K20
  • compatible year: 1986 1985 1984 1983 1982 1981 1980 1979 1978
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement
  • bundle description: 1 Pc Genuine Gates Radiator Cap

offer radiatoranch:

  • availability: In Stock
  • sold: 0
  • started: February 12, 2026
  • quantity: 10
  • options: Ship-to-home

seller radiatoranch:

  • city: Indianapolis, Indiana
  • # reviews: 621866
  • rating: 99.5%

returns radiatoranch:

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

general radiatoranch:

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

shipping radiatoranch:

  • type: Fixed
  • service: Standard, Expedited
  • transit: 5-7 Days
  • cost: $0.00
  • class: Standard, Expedited

payments radiatoranch:

  • other
  • credit card: Visa
  • wallet: Google-pay
for makes: chevrolet, for years: 1978-1986, type: radiator cap, placement on vehicle: belts cooling hardware fasteners fittings, manufacturer warranty: recommended service interval, item height: 2.750, compatible model: k20, compatible year: 1986 1985 1984 1983 1982 1981 1980 1979 1978, core charge: free no core charge, fitment type: direct replacement, bundle description: 1 pc genuine gates radiator cap,
category: auto parts > car truck parts accessories > engine cooling components > radiators, sku: 11877781500286721,

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