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  3. BORGWARNER 404073

BORGWARNER 404073 Borg Warner Kysor Valve

404073 Borgwarner Borg Warner Kysor Valve Assembly

( Brand: Borgwarner ), ( Manufacturer Part Number: 404073 ), ( Type: Expansion Vavle )

Review BORGWARNER Borg Warner Kysor Valve Assembly

The Borg Warner Kysor Model 404073 is a thermostatic expansion valve, specifically designed for automotive air conditioning systems. This valve plays a crucial role in regulating the flow of refrigerant to the evaporator, ensuring optimal cooling performance.

The valve body is manufactured with high-quality materials, including a brass housing that offers excellent durability and resistance to corrosion. The valve is designed with a bimetallic thermostat that expands and contracts with temperature changes to control refrigerant flow. This thermostat is constructed using a unique combination of two metals, which allows it to respond rapidly to temperature fluctuations for precise temperature control.

The valve features a robust spring-loaded diaphragm that provides reliable sealing and pressure control. The diaphragm is designed with a reinforced edge to prevent tearing or leaking, even under high-pressure conditions. The valve also includes a built-in pressure relief feature, which helps to prevent damage to the air conditioning system in case of overpressure.

The Borg Warner Kysor Model 404073 is easy to install, with a simple bolt-on design that allows for quick and secure attachment to the air conditioning system. The valve comes with all necessary mounting hardware, making installation even more convenient.

This valve is suitable for use with R134a refrigerant, which is commonly used in modern automotive air conditioning systems. Its compact size and robust design make it an ideal choice for a wide range of automotive applications, from passenger cars to commercial vehicles.

In summary, the Borg Warner Kysor Model 404073 is a high-performance thermostatic expansion valve, designed for optimal cooling performance in automotive air conditioning systems. Its durable brass housing, bimetallic thermostat, and spring-loaded diaphragm make it a reliable and long-lasting component, while its simple installation process makes it a convenient choice for technicians and DIY enthusiasts alike.

BorgWarner KYSOR Valve (404073): A Comprehensive Analysis

The BorgWarner KYSOR valve, specifically model 404073, is a crucial component in various cooling systems. This analysis aims to provide an unbiased evaluation of this valve, discussing its key features, advantages, disadvantages, and a final recommendation.

Features:

1. Designed for heavy-duty applications

2. Made from durable materials, including brass and stainless steel

3. Direct replacement for several makes and models

4. Suitable for both automotive and industrial applications

Advantages:

1. Enhanced durability: The valve's brass body and stainless steel components ensure robustness and longevity, making it suitable for high-pressure and high-temperature environments.

2. Versatility: The 404073 valve is a direct replacement for various makes and models, providing flexibility in application and ease of use for consumers.

3. Improved cooling system efficiency: By correctly functioning and maintaining the cooling system, this valve contributes to the engine's overall performance and longevity.

Disadvantages:

1. Installation complexity: Due to its heavy-duty design and diverse applications, the installation process for this valve may require specialized skills and tools, potentially increasing the overall cost and time for replacement.

2. Potential compatibility issues: Although it is a direct replacement for several makes and models, there may still be instances where it does not fit perfectly, requiring additional modifications or parts.

Conclusion:

The BorgWarner KYSOR valve (404073) is a reliable and robust component designed for heavy-duty applications. Its benefits, such as durability, versatility, and improved cooling system efficiency, outweigh the potential drawbacks, including installation complexity and potential compatibility issues.

Recommendation:

If you are in need of a heavy-duty cooling system component or seeking a replacement for your existing system, the BorgWarner KYSOR valve (404073) is a solid choice. However, it is essential to carefully consider the installation process and compatibility with your specific application before making a purchase. Proper preparation and consultation with a professional mechanic or cooling system specialist can help ensure a successful installation and long-term performance.

Details:

Part number is 404073. It is new never been used has capped off. This item is a vintage AC expansion valve.

part #: 404073 prices

  • $25.24-$103.70

specifications coenginecooling:

  • brand: Borgwarner
  • mpn: 404073
  • type: Expansion Vavle

payments coenginecooling:

  • wallet: Paypal
  • credit card: Diners-club
  • other

returns coenginecooling:

  • policy: No Returns

seller coenginecooling:

  • # reviews: 78
  • rating: 100.0%
  • city: Flagstaff, Arizona

offer coenginecooling:

  • best offers: True
  • sold: 0
  • availability: In Stock
  • started: February 18, 2026
  • options: Ship-to-home
  • quantity: 1

shipping coenginecooling:

  • transit: 7-10 Days
  • carrier: USPS
  • cost: $5.00
  • service: USPS Ground Advantage
  • class: Standard
  • type: Fixed

general coenginecooling:

  • Commercial Truck Parts > Engine Cooling > Other Engine Cooling
  • condition: New other see details
type: expansion vavle,
category: auto parts > commercial truck parts > engine cooling, sku: 9596795781507604,
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5 offers $25.24–$103.70 USD
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