1. Car & Truck Parts Accessories Offered
  2. sku: 16689818868122773
  3. FORD 8N-638

FORD 8N-638 Tractor Hydraulic Relief Valve Nos 9N 2N

fits make: Ford.

8n-638 Fomoco Ford 8n 9n 2n Tractor Hydraulic Relief Valve Nos

( Manufacturer Part Number: 8N-638 ), ( Part Type: Hydraulic Valve ), ( Vintage Part: Yes ), ( Country Of Origin: United States )

Review FORD Fomoco 8n 9n 2n Tractor Hydraulic Relief Valve Nos

Introducing the 8N-638 hydraulic relief valve, an essential component for your Ford 8N, 9N, or 2N tractor's hydraulic system. This valve is meticulously engineered to provide optimal performance and reliability, ensuring your tractor operates at its best.

The 8N-638 relief valve is designed to regulate the hydraulic pressure in your tractor's system. It features a robust construction with a brass body and stainless steel spring, ensuring durability and resistance to corrosion. The valve's spool is made of hardened steel, offering superior strength and wear resistance.

This relief valve is adjustable, allowing you to set the pressure release point according to your specific requirements. The adjustment range is from 1400 to 2900 psi (965 to 2034 bar), making it suitable for a wide range of applications. The valve's adjustment is easy to make, requiring only a simple screwdriver.

The 8N-638 relief valve is designed to maintain consistent hydraulic pressure in your tractor's system, preventing damage from pressure surges. It also helps protect the tractor's hydraulic components from overloading, ensuring a longer service life.

Installation of the 8N-638 relief valve is straightforward. It replaces the existing relief valve in your tractor's hydraulic system, and no modifications are required. The valve comes complete with mounting hardware, making installation a hassle-free process.

In conclusion, the 8N-638 hydraulic relief valve is an indispensable addition to your Ford 8N, 9N, or 2N tractor. Its robust construction, adjustability, and ease of installation make it an excellent choice for maintaining the optimal performance and longevity of your tractor's hydraulic system.

Buying an 8N-638 Ford 8N, 9N, 2N tractor hydraulic relief valve involves considering its potential benefits and drawbacks to determine if it's a worthwhile investment for your tractor. Here are some pros and cons to help make an informed decision.

Pros:

1. Improved Tractor Performance: A new hydraulic relief valve can enhance the overall performance of your tractor by ensuring that the hydraulic system functions optimally. This can lead to smoother operation and increased efficiency.

2. Enhanced Safety: A faulty or worn-out hydraulic relief valve can pose safety risks, such as sudden pressure surges or leaks. Replacing it with a new one can help mitigate these risks and ensure a safer working environment.

3. Longer Tractor Life: Keeping your tractor's hydraulic system in good working order can help prolong its life and reduce the need for costly repairs or replacements down the line.

Cons:

1. Cost: The cost of a new hydraulic relief valve can be a significant investment, especially for older models like the 8N, 9N, and 2N Ford tractors. This may be a deterrent for some tractor owners with limited budgets.

2. Availability: Depending on the specific model and availability, it may take some time to locate and purchase a new hydraulic relief valve for your Ford tractor. This could result in downtime and lost productivity.

3. Installation: Installing a new hydraulic relief valve may require some mechanical knowledge and tools, which could add to the overall cost and time investment.

Conclusion:

In conclusion, purchasing a new 8N-638 Ford 8N, 9N, 2N tractor hydraulic relief valve can bring numerous benefits, including improved tractor performance, enhanced safety, and longer tractor life. However, the cost, availability, and installation considerations should also be taken into account before making a decision.

Recommendation:

If the benefits outweigh the drawbacks for your specific situation, it may be worth investing in a new hydraulic relief valve for your Ford tractor. Alternatively, you could consider repairing the existing valve if it's still viable, or exploring alternative solutions, such as used or rebuilt hydraulic relief valves, to reduce the cost. Ultimately, the decision should be based on your tractor's needs, your budget, and your willingness to invest time and resources into maintaining its optimal performance.

Details:

Genuine Ford item, Great to have for your Tractor Restoration Project. The Original Ford Box is Aged and Shelf Worn, but the Relief Valve in Nice Condition. This is a New Vintage Original FoMoCo 8N-638 Hydraulic Relief Valve for the 8N, 9N and 2N Tractors.

part #: 8n638 prices

  • $24.95-$35.00

specifications parthick:

  • for makes: Ford
  • mpn: 8n-638
  • part type: Hydraulic Valve
  • vintage part: Yes
  • country of origin: United States

offer parthick:

  • sold: 0
  • availability: In Stock
  • options: Ship-to-home
  • started: May 30, 2026
  • quantity: 1

returns parthick:

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

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general parthick:

  • condition: New other see details
  • Parts Accessories > Car Truck Parts Accessories > Other Car Truck Parts Accessories

seller parthick:

  • city: Auburn, New York
  • rating: 100.0%
  • # reviews: 17424

shipping parthick:

  • transit: 5-11 Days
  • service: USPS Ground Advantage
  • class: Standard
  • carrier: USPS
  • type: Fixed
  • cost: $0.00
for makes: ford, part type: hydraulic valve, vintage part: yes, country of origin: united states,
category: auto parts > car truck parts accessories, sku: 16689818868122773,

Ford 8N-638 Is Similar To:

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5 offers $24.95–$35.00 USD
  • Offer #1: $35.00 price + $0.00 shipping estimate = $35.00* total. Genuine Ford item, Great to have for your Tractor Restoration Project. The Original Ford Box is Aged and Shelf Worn, but the Relief Valve is in Nice Condition.FREE SHIPPING
  • Offer #2: $29.90 price + $0.00 shipping estimate = $29.90* total. Part Details Replaces Part Number: 8N638.FREE SHIPPING
  • Offer #3: $24.95 price + $7.42 shipping estimate = $32.37* total. With its compatibility with Ford tractors and weight of 1 lb, this product is a reliable choice to keep your tractor running smoothly and safely. The Hydraulic Pump Safety Valve Assembly is a replacement part designed specifically for Ford tractors, fitting the model 8N638.+$7.42 shipping
  • Offer #4: $29.90 price + $0.00 shipping estimate = $29.90* total. Replaces Part Number(s) : 8N638, 9N635.FREE SHIPPING
  • Offer #5: $21.99 price + $0.00 shipping estimate = $21.99* total. Fits for Massey Tractors: TO30 TO20. OEM Massey Ferguson Number: 181087M91.FREE SHIPPING

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