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  3. HAYDEN SX-4KM3

HAYDEN SX-4KM3 Automatic Transmission Oil Cooler Samurai

fits make: Datsun. year: 1965–1984.

Sx-4km3 Hayden Automatic Transmission Oil Cooler For 1965-1984 Datsun Pickup Samurai Qt

( Brand: Hayden ), ( Type: Automatic Transmission Oil Cooler ), ( Manufacturer Part Number: SX-4KM3 ), ( Item Width: 11.000 ), ( Item Height: 1.750 ), ( Item Length: 16.500 ), ( Manufacturer Warranty: 1 Year / 12, 000 Miles ), ( Ipn: C774 41-34 ), ( Placement On Vehicle: Belts Cooling Radiators Coolers ), ( Compatible Model: Pickup Samurai Sedan ), ( Compatible Year: 1984 1983 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973 1972 ), ( 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 Datsun Pickup Samurai Qt fits 1965–1984

Introducing the Hayden SX-4KM3 Automatic Transmission Oil Cooler, specifically designed for Datsun Samurai models from 1965 to 1984. This high-performance oil cooler is an essential upgrade for those seeking improved engine durability and reliability, particularly for off-road enthusiasts or high-performance driving.

The Hayden SX-4KM3 is a 4-row, stacked-plate cooler, constructed using heavy-duty aluminum. It boasts a large cooling capacity, ensuring efficient cooling of automatic transmission fluid, even under the most demanding conditions. The cooler's dimensions are 10.0 inches in length, 6.5 inches in width, and 3.5 inches in height, making it a suitable fit for most Datsun Samurai applications.

This oil cooler features a unique, patented, and easy-to-install sandwiched plate design. It includes an external oil filter mount, allowing for easy filter replacement. The cooler also comes equipped with a built-in bypass kit, which helps prevent fluid starvation and ensures proper oil flow to the transmission.

The Hayden SX-4KM3 Automatic Transmission Oil Cooler is designed to be a direct bolt-on replacement for most Datsun Samurai models. It utilizes the factory mounting points, eliminating the need for additional fabrication or modification. The cooler comes complete with all necessary mounting hardware, making installation a straightforward process.

Additionally, this oil cooler is compatible with various transmission fluid types, including Dexron III, Mercon, and Mercon V. It is important to note that using the correct transmission fluid is crucial for maintaining the longevity and functionality of the oil cooler and transmission system.

By upgrading your Datsun Samurai with the Hayden SX-4KM3 Automatic Transmission Oil Cooler, you'll experience enhanced engine performance, increased reliability, and improved overall driving experience. This cooler is an excellent investment for Samurai owners who demand the best from their vehicles, especially for those who regularly engage in off-road adventures or high-performance driving.

The Hayden SX-4KM3 automatic transmission oil cooler is a popular aftermarket upgrade for the Datsun Samurai models produced between 1965 and 1984. This cooler is designed to help maintain optimal transmission temperatures, which can lead to improved performance, extended transmission life, and better fuel efficiency. In this analysis, we will discuss the potential advantages and disadvantages of installing this cooler in your Datsun Samurai.

Advantages:

1. Enhanced Transmission Cooling: The primary benefit of installing the Hayden SX-4KM3 oil cooler is the improved cooling capacity for your transmission. This can help prevent overheating, reduce the risk of transmission damage, and ensure consistent performance, especially during heavy use or in hot environments.

2. Improved Fuel Efficiency: By maintaining optimal transmission temperatures, the Hayden SX-4KM3 oil cooler can help improve your vehicle's fuel efficiency. A cooler transmission operates more efficiently, allowing your engine to perform at its best and reducing the amount of fuel required to maintain performance.

3. Increased Transmission Lifespan: By preventing transmission overheating and ensuring consistent operating temperatures, the Hayden SX-4KM3 oil cooler can help extend the life of your transmission. Overheating can lead to a variety of issues, including worn clutch plates, damaged seals, and other costly repairs.

Disadvantages:

1. Cost: Installing an oil cooler like the Hayden SX-4KM3 can be a significant investment. The cost of the cooler itself, as well as the labor and materials required for installation, can add up quickly.

2. Complexity: Installing an oil cooler can be a complex process, requiring a good deal of mechanical knowledge and experience. If you are not comfortable working on your vehicle yourself, you may need to pay for professional installation, which can further increase the cost.

3. Maintenance: An oil cooler adds another component to your vehicle's cooling system, which means additional maintenance requirements. You will need to regularly check coolant levels and ensure that the cooler is functioning properly to prevent potential issues.

Conclusion:

The Hayden SX-4KM3 automatic transmission oil cooler can offer numerous benefits for your Datsun Samurai, including enhanced cooling capacity, improved fuel efficiency, and increased transmission lifespan. However, it also comes with potential drawbacks, such as cost, complexity, and increased maintenance requirements.

If you frequently use your Datsun Samurai for heavy towing or off-roading, or if you live in a hot climate, the benefits of this oil cooler may outweigh the costs. In these cases, the investment in a high-quality oil cooler like the Hayden SX-4KM3 could save you money in the long run by preventing costly transmission repairs or replacement.

On the other hand, if you mostly use your Samurai for daily driving in a cooler climate, the expense and complexity of installing an oil cooler may not be worth it for your situation. In such cases, it may be more cost-effective to focus on maintaining your vehicle through regular oil changes and other routine maintenance.

Ultimately, the decision to install a Hayden SX-4KM3 oil cooler in your Datsun Samurai depends on your individual driving habits, vehicle usage, and budget. Weigh the potential advantages against the disadvantages, and consult with a trusted mechanic or transmission specialist to help you make an informed decision.

part # sx4km3 price

  • $56.75

specifications motochilled:

  • for makes: Datsun
  • for years: 1965-1984
  • brand: Hayden
  • type: Automatic Transmission Oil Cooler
  • manufacturer part number: SX-4KM3
  • item width: 11.000
  • item height: 1.750
  • item length: 16.500
  • manufacturer warranty: 1 Year / 12, 000 Miles
  • interchange part number: C774 41-34
  • placement on vehicle: Belts Cooling Radiators Coolers
  • compatible model: Pickup Samurai Sedan
  • compatible year: 1984 1983 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973 1972
  • core charge: Free No Core Charge
  • fitment type: Direct Replacement
  • bundle description: 1 Pc Genuine Hayden Automatic Transmission Oil Cooler

seller motochilled:

  • # reviews: 606826
  • rating: 99.3%

general motochilled:

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

returns motochilled:

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

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  • wallet: Google-pay
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offer motochilled:

  • quantity: 1
  • availability: In Stock
  • options: Ship-to-home
  • started: December 26, 2025
  • sold: 0

shipping motochilled:

  • transit: 4-6 Days
  • type: Fixed
  • class: Standard, Expedited
  • cost: $0.00
  • service: Standard, Expedited
for makes: datsun, for years: 1965-1984, type: automatic transmission oil cooler, item width: 11.000, item height: 1.750, item length: 16.500, manufacturer warranty: 1 year / 12, 000 miles, placement on vehicle: belts cooling radiators coolers, compatible model: pickup samurai sedan, compatible year: 1984 1983 1982 1981 1980 1979 1978 1977 1976 1975 1974 1973 1972, 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: 10186495187485721,

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