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  3. HADLEY H13940S

HADLEY H13940S Horns Pressure Switch 729008000606

H13940s Hadley Horns Pressure Switch

( Brand: Hadley ), ( Manufacturer Part Number: H13940S ), ( Part Type: Horn Pressure Switch ), ( UPC: 729008000606 )

Review HADLEY Horns Pressure Switch

The Hadley H13940S Horns Pressure Switch is an essential component for maintaining optimal performance in air brake systems used in heavy-duty vehicles and industrial applications. This pressure switch is specifically designed to turn on the vehicle's air horns when the air pressure in the system reaches a certain level.

The switch body is made from high-quality brass, providing superior durability and resistance to corrosion. It features a diaphragm-operated design, which allows the switch to respond quickly and accurately to changes in air pressure. The diaphragm is made from a robust rubber material that can withstand the harsh conditions encountered in heavy-duty applications.

The Hadley H13940S Horns Pressure Switch comes with two separate horn contacts, allowing for the operation of two sets of air horns. Each contact is rated for a maximum current of 10 amps, ensuring reliable operation of even the most demanding air horn systems. The switch also features a built-in test button, which allows for easy verification of the switch's functionality.

The switch is designed to operate in a wide range of temperatures, from -40 F to 185 F (-40 C to 85 C), making it suitable for use in various climates and environments. It is also sealed against water and dust, providing added protection against the elements.

The Hadley H13940S Horns Pressure Switch is a direct replacement for many OEM switches and is backed by a one-year manufacturer's warranty. It is easy to install, requiring no special tools or modifications to the vehicle's wiring harness. The switch's compact size ensures that it can be installed in even the most confined spaces.

In summary, the Hadley H13940S Horns Pressure Switch is a reliable and durable component that is essential for ensuring the proper operation of air brake systems and air horns in heavy-duty vehicles and industrial applications. Its robust design, quick response time, and easy installation make it an ideal choice for fleet managers, truck owners, and maintenance professionals.

Pros and Cons of buying a Hadley H13940S Horns Pressure Switch

The Hadley H13940S Horns Pressure Switch is a popular choice for those seeking a reliable and efficient solution for their vehicle's air horn system. In this analysis, we will discuss the advantages and disadvantages of purchasing this particular pressure switch.

Pros:

1. Durability: The Hadley H13940S Horns Pressure Switch is built to last, with a heavy-duty design that can withstand harsh conditions. It is constructed from high-quality materials, ensuring a long service life.

2. Easy Installation: This pressure switch is relatively easy to install, even for those with limited mechanical experience. The clear instructions and straightforward process make it an excellent choice for DIY enthusiasts.

3. High-Performance: The Hadley H13940S Horns Pressure Switch is designed to deliver powerful and consistent air horn blasts. This can be crucial for ensuring safety on the road, particularly for commercial vehicles or those towing heavy loads.

4. Compact Size: With its compact design, this pressure switch can fit into most vehicles without taking up too much space. This makes it a versatile option for a wide range of applications.

Cons:

1. Price: The Hadley H13940S Horns Pressure Switch is slightly more expensive than some other options on the market. However, its high durability and superior performance may justify the investment for some buyers.

2. Limited Compatibility: While the Hadley H13940S Horns Pressure Switch is compatible with a wide range of vehicles, it may not be suitable for all makes and models. It is essential to confirm compatibility before making a purchase to avoid potential issues.

3. No Adjustable Volume: This pressure switch does not come with an adjustable volume feature, which may be a disadvantage for those seeking more control over the intensity of their air horn blasts.

Conclusion:

The Hadley H13940S Horns Pressure Switch offers several advantages, including durability, easy installation, high-performance, and compact size. However, it also comes with some disadvantages, such as a higher price point and limited compatibility. Ultimately, the decision to purchase this pressure switch depends on your specific needs, budget, and vehicle compatibility. If you require a reliable and powerful air horn system for your vehicle, the Hadley H13940S Horns Pressure Switch may be an excellent investment. However, if you are working with a tight budget or have compatibility concerns, it may be worth exploring other options as well.

Recommendation:

If you are in the market for a high-quality and durable air horn pressure switch, the Hadley H13940S is an excellent choice. Its superior performance and easy installation make it a worthwhile investment for those seeking a reliable and efficient solution for their vehicle's air horn system. However, be sure to confirm compatibility before making a purchase to avoid potential issues. Additionally, consider your budget and other options to ensure that this pressure switch is the best fit for your specific needs.

Details:

Also, when used in conjunction with the Hadley air compressor, our horns are popular a variety of vehicles: SUV's, 4x4's, vans, pickup trucks, motor homes, motorcycles, and power/sail boats. For kits, photo might show entire kit and listing is only for one component. Note: Photos do not always represent the actual product. Hadley Horns H13940S Pressure Switch,:: 110 To 135 Pounds Per Square Inch.

Hadley air horn systems are widely used as original equipment on over the road, tractor/trailer rigs. The extensive product line also offers horns with a matte black, chrome, or anodized aluminum finish. You can choose a round or rectangular bell in single dual projector configurations.

part #: h13940s prices

  • $57.47-$226.20

specifications commerciatruc:

  • brand: Hadley
  • mpn: H13940s
  • part type: Horn Pressure Switch
  • upc: 729008000606

general commerciatruc:

  • condition: New
  • Parts Accessories > Commercial Truck Parts > Other Commercial Truck Parts

shipping commerciatruc:

  • class: Standard
  • transit: 3-5 Days
  • service: Standard
  • cost: $0.00
  • type: Fixed

returns commerciatruc:

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

seller commerciatruc:

  • city: USA
  • rating: 98.7%
  • # reviews: 84188

offer commerciatruc:

  • quantity: 10
  • sold: 0
  • started: March 9, 2026
  • availability: In Stock
  • options: Ship-to-home

payments commerciatruc:

  • wallet: Paypal
  • other
  • credit card: Mastercard
part type: horn pressure switch,
category: auto parts > commercial truck parts, sku: 24200884896912861,
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