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  3. HAYDEN SX-641V

HAYDEN SX-641V Automatic Transmission Oil Cooler Kf International

fits year: 1950–1980.

Sx-641v Hayden Automatic Transmission Oil Cooler For 1950-1980 International 100 Kf

( Brand: Hayden ), ( Type: Automatic Transmission Oil Cooler ), ( Manufacturer Part Number: SX-641V ), ( Item Height: 1.910 ), ( Item Length: 13.630 ), ( Item Width: 11.310 ), ( Manufacturer Warranty: 1 Year / 12, 000 Miles ), ( Ipn: C639 19-32 ), ( Placement On Vehicle: Belts Cooling Radiators Coolers ), ( Compatible Make: International ), ( Compatible Model: 100 1000a 1000b 1000c 1000d 1010 1100a 1100b 1100c 1100d 1110 12 ), ( Compatible Year: 1980 1979 1978 1977 1976 1975 1974 1973 1972 1971 1970 1969 1968 ), ( Core Charge: Free No Core Charge ), ( Fitment Type: Direct Replacement ), ( Bundle Description: 1 Pc Genuine Hayden Automatic Transmission Oil Cooler )

Review HAYDEN Automatic Transmission Oil Cooler International 100 Kf fits 1950–1980

Introducing the Hayden SX-641V Automatic Transmission Oil Cooler, specifically designed for International Harvester KF trucks manufactured between 1950 and 1980. This cooler is an essential upgrade for those looking to enhance their vehicle's performance and extend the life of their automatic transmission.

The SX-641V oil cooler is engineered with a robust aluminum construction, ensuring durability and reliability. Its compact design allows for a perfect fitment on your KF truck without compromising valuable underhood space. The cooler features a unique fin design with a large cooling surface area, facilitating efficient heat dissipation and maintaining optimal operating temperatures for your transmission.

The Hayden SX-641V oil cooler comes equipped with a heavy-duty, high-pressure hose kit, ensuring secure and leak-free connections. The hoses are made from reinforced, abrasion-resistant materials, designed to withstand the rigors of off-road and heavy-duty applications. The kit also includes all necessary mounting hardware, making installation a straightforward process.

This oil cooler is specifically engineered for use with automatic transmissions. It is designed to accommodate the unique cooling requirements of these transmissions, ensuring that the fluid remains at an optimal temperature, preventing damage and maintaining peak performance.

By installing the Hayden SX-641V Automatic Transmission Oil Cooler on your International Harvester KF, you can expect improved transmission performance, increased longevity, and enhanced overall vehicle reliability. This cooler is a must-have upgrade for anyone looking to get the most out of their classic or vintage truck.

Pros and Cons of Buying a Hayden SX-641V Automatic Transmission Oil Cooler for 1950-1980 International KF Trucks

Introduction:

The Hayden SX-641V automatic transmission oil cooler is a popular aftermarket upgrade for older International KF trucks (1950-1980) with automatic transmissions. This cooling system aims to improve the performance and longevity of the transmission by maintaining optimal operating temperatures. In this analysis, we will discuss the advantages and disadvantages of purchasing this particular oil cooler.

Pros:

1. Enhanced Transmission Performance: The oil cooler effectively reduces the operating temperature of the transmission fluid, which can lead to improved performance and smoother shifting.

2. Prolonged Transmission Lifespan: By keeping the transmission fluid at optimal temperatures, the oil cooler helps reduce wear and tear, potentially increasing the lifespan of the transmission.

3. Customizable Design: The Hayden SX-641V oil cooler is compatible with various transmission types and comes in various configurations, allowing users to select the best option for their specific application.

4. Easy Installation: The installation process for this oil cooler is generally straightforward, with clear instructions provided in the kit and no major modifications required.

5. Durability: The Hayden SX-641V oil cooler is constructed of high-quality materials, ensuring it can withstand the rigors of heavy-duty truck use.

Cons:

1. Cost: The Hayden SX-641V oil cooler can be considered a more expensive upgrade compared to some other aftermarket options, which may deter some potential buyers.

2. Additional Maintenance: While the oil cooler itself may not require extensive maintenance, the additional installation and removal of the cooler when performing transmission services may add some labor and time.

3. Limited Cooling Capacity: Depending on the specific driving conditions, the cooling capacity of the Hayden SX-641V oil cooler might not be sufficient for extreme situations, such as heavy towing or prolonged high-speed driving.

Conclusion:

The Hayden SX-641V automatic transmission oil cooler offers several advantages for 1950-1980 International KF trucks with automatic transmissions, including improved performance, extended transmission lifespan, customizability, ease of installation, and durability. However, it does come with some drawbacks, such as a higher cost, additional maintenance, and limited cooling capacity. Ultimately, the decision to purchase this oil cooler depends on the user's specific needs, budget, and driving habits.

Recommendation:

If you frequently tow heavy loads, travel in extreme temperatures, or simply want to ensure the best possible performance and longevity for your International KF truck's automatic transmission, the Hayden SX-641V oil cooler is a worthwhile investment. However, if you have a limited budget or do not frequently put heavy demands on your transmission, other less expensive options may be more suitable for your needs.

part # sx641v price

  • $65.01

specifications motochilled:

  • for years: 1950-1980
  • brand: Hayden
  • type: Automatic Transmission Oil Cooler
  • manufacturer part number: SX-641V
  • item height: 1.910
  • item length: 13.630
  • item width: 11.310
  • manufacturer warranty: 1 Year / 12, 000 Miles
  • interchange part number: C639 19-32
  • placement on vehicle: Belts Cooling Radiators Coolers
  • compatible make: International
  • compatible model: 100 1000a 1000b 1000c 1000d 1010 1100a 1100b 1100c 1100d 1110 12
  • compatible year: 1980 1979 1978 1977 1976 1975 1974 1973 1972 1971 1970 1969 1968
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement
  • bundle description: 1 Pc Genuine Hayden Automatic Transmission Oil Cooler

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general motochilled:

  • condition: New
  • Car Truck Parts Accessories > Engine Cooling Components > Engine Oil Coolers Lines

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  • availability: In Stock
  • quantity: 3
  • started: September 14, 2025

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  • # reviews: 568679
  • rating: 98.8%

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for years: 1950-1980, type: automatic transmission oil cooler, item height: 1.910, item length: 13.630, item width: 11.310, manufacturer warranty: 1 year / 12, 000 miles, placement on vehicle: belts cooling radiators coolers, compatible make: international, compatible model: 100 1000a 1000b 1000c 1000d 1010 1100a 1100b 1100c 1100d 1110 12, compatible year: 1980 1979 1978 1977 1976 1975 1974 1973 1972 1971 1970 1969 1968, core charge: free no core charge, fitment type: direct replacement, bundle description: 1 pc genuine hayden automatic transmission oil cooler,
category: auto parts > car truck parts accessories > engine cooling components > engine oil coolers lines, sku: 8259251512173721,

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