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  3. HARVESTER 140402H

INTERNATIONAL HARVESTER 140402H Carburetor Choke Accel Pump Diaphragm Tractor

140402h International Harvester Carburetor Choke / Accel Pump Diaphragm Truck Tractor

( Brand: International Harvester ), ( Type: Accelerator Pump ), ( Oe/oem Part Number: 140 402 H ), ( Manufacturer Part Number: 140402H ), ( Material: Rubber ), ( Vintage Part: Yes ), ( Country Of Origin: United States )

Review INTERNATIONAL HARVESTER Carburetor Choke Accel Pump Diaphragm Truck Tractor

Introducing the International Harvester 140402H Carburetor Choke Accel Pump Diaphragm, a crucial component for the smooth and efficient operation of your International Harvester tractor. This diaphragm pump is specifically designed for use with International Harvester carburetors and is an essential part of the tractor's starting and acceleration system.

The diaphragm is made of a high-quality, heavy-duty rubber material that is resistant to wear and tear, ensuring long-lasting performance. The pump design features a large diaphragm surface area, which allows for greater vacuum and pressure capabilities. This results in improved starting performance, especially in cold weather conditions, and smoother acceleration.

The International Harvester 140402H Carburetor Choke Accel Pump Diaphragm is easy to install, and it fits perfectly into the existing pump housing on your tractor's carburetor. The pump also comes with all necessary hardware for a straightforward installation process.

Additionally, this diaphragm pump is designed to be leak-free, ensuring that no fuel is wasted and that your tractor runs at optimal efficiency. The pump's robust construction also makes it resistant to fuel and oil, ensuring that it can withstand the harsh conditions of regular tractor use.

In summary, the International Harvester 140402H Carburetor Choke Accel Pump Diaphragm is an essential upgrade for any International Harvester tractor. It offers improved starting performance, smoother acceleration, and a leak-free design, making it a valuable investment for tractor owners who demand the best from their equipment.

Buying an International Harvester 140402H carburetor choke accelerator pump diaphragm for a tractor involves considering several pros and cons. This decision can impact the tractor's performance and your overall experience with it.

Pros:

1. Improved Starting: A new diaphragm can help the tractor start more easily, especially in cold weather conditions, as it ensures proper vacuum for the choke system.

2. Enhanced Acceleration: A functional accelerator pump diaphragm guarantees smooth acceleration by delivering fuel efficiently to the engine during the initial stages of throttle opening.

3. Longer Service Life: A new diaphragm can prolong the life of the carburetor by preventing leaks and ensuring proper fuel flow.

Cons:

1. Cost: Replacing the diaphragm can be an expensive repair, as the part itself is not inexpensive, and labor costs can add to the overall expense.

2. Installation Complexity: Installing the new diaphragm might require specialized tools and technical knowledge, potentially resulting in additional labor costs.

3. Potential for Unintended Consequences: Incorrect installation or use of an incorrect diaphragm could lead to engine damage or poor performance.

Conclusion:

Weighing the pros and cons, it is evident that a new International Harvester 140402H carburetor choke accelerator pump diaphragm can lead to improved starting, enhanced acceleration, and a longer service life for your tractor. However, the cost and installation complexity could be potential drawbacks. If you are confident in your mechanical abilities or have access to a qualified mechanic, the benefits of a new diaphragm may outweigh the costs.

Recommendation:

Considering the importance of the carburetor choke accelerator pump diaphragm in ensuring optimal tractor performance, it is recommended that you invest in a new one if you experience any issues. It is essential to ensure that the part is correctly installed by a qualified mechanic to avoid any potential negative consequences. If you are unsure about the installation process, it may be worth seeking professional help to ensure the best possible outcome.

part # 140402h price

  • $24.99

specifications carbcaddie:

  • brand: International Harvester
  • type: Accelerator Pump
  • oe/oem part number: 140 402 H
  • manufacturer part number: 140402H
  • material: Rubber
  • vintage part: Yes
  • country of origin: United States

general carbcaddie:

  • Car Truck Parts Accessories > Air Fuel Delivery > Carburetor Parts
  • condition: New other see details

payments carbcaddie:

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offer carbcaddie:

  • quantity: 2
  • sold: 0
  • best offers: True
  • options: Ship-to-home
  • started: March 2, 2026
  • availability: In Stock

shipping carbcaddie:

  • transit: 3-8 Days
  • class: Standard
  • type: Fixed
  • cost: $5.99
  • carrier: USPS
  • service: USPS Ground Advantage

seller carbcaddie:

  • # reviews: 939
  • rating: 99.1%

returns carbcaddie:

  • paid by: Seller
  • policy: Returns Accepted
  • time: 30 Days
type: accelerator pump, oe/oem part number: 140 402 h, vintage part: yes, country of origin: united states,
category: auto parts > car truck parts accessories > air fuel delivery > carburetor parts, material: rubber, sku: 9539400869854633,

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1 offer $24.99 USD
  • Offer #1: $24.99 price + $5.99 delivery = $30.98* total.+$5.99 shipping