1. Buy Instrument Clusters In Instrcluster Gauges Prices For Sale.
  2. sku: 14037083567770861
  3. IN TAMPA 5638740

LLC IN TAMPA 5638740 Guy Thepartguy Com Nos Water Shut Valve Thepartguy.com 77-79 Vacuum Sto

fits model: Fl, Corvette. year: 1977–1979.

5638740 The Part Guy Llc In Tampa Fl Thepartguy.com Nos 77-79 Corvette Hot Water Shut Off Vacuum Valve 78 1977 1978 1979 New Old Sto

( Brand: Llc In Tampa ), ( Manufacturer Part Number: 5638740 ), ( Part Type: Vacuum Valve Com ), ( Items Included: Hot Water Shut Off Vacuum Valve ), ( Universal Fitment: No ), ( Vintage Part: Yes ), ( Country Of Origin: United States ), ( California Prop 65 Warning: Warning. Everything Sold Into The State Of California Contains Agents Known To The State Of California To Cause Cancer And Birth Defects, Reproductive Harm, Or Other, As Yet Unnamed, Harm To Its Citizenry. More Info At Www.p65warnings.ca.gov )

Review LLC IN TAMPA The Part Guy Thepartguy.com Nos Hot Water Shut Off Vacuum Valve New Old Sto fits CORVETTE FL 1977–1979

The Parts Guy 5638740 NOS 77-79 Corvette Water Shut Vacuum Valve (For 1978 and 1979 Corvette Models)

Description:

The Parts Guy 5638740 NOS (New Old Stock) 77-79 Corvette Water Shut Vacuum Valve is an essential component for the correct operation of the engine vacuum system in 1978 and 1979 Corvette models. This vacuum valve, also referred to as a water shutoff valve, is designed to prevent water from entering the engine intake during vehicle start-up, ensuring a dry and efficient engine.

This NOS valve is a direct replacement for the original equipment manufactured by General Motors. It is meticulously engineered and manufactured to meet the highest standards of quality and fitment. This valve is designed to function seamlessly with the existing vacuum system in your Corvette, ensuring optimal performance and longevity.

The vacuum valve is made from high-quality materials, including brass and rubber, to ensure durability and resistance to corrosion. The valve features a hollow stem design, allowing it to operate effectively even when the engine is at low RPMs. The valve also incorporates a vacuum-operated diaphragm that activates the valve when engine vacuum is present, ensuring that water is prevented from entering the intake system during start-up.

Installation of this vacuum valve is a straightforward process, requiring no modifications to the vehicle's existing vacuum system. The valve comes with clear installation instructions, making it easy for even the most novice of DIY enthusiasts to complete the installation.

By choosing The Parts Guy 5638740 NOS 77-79 Corvette Water Shut Vacuum Valve, you are investing in a high-quality, authentic, and functional replacement part that will provide you with the peace of mind that comes with knowing your Corvette's engine vacuum system is functioning correctly.

In summary, this NOS vacuum valve is a crucial component for the proper functioning of the engine vacuum system in 1978 and 1979 Corvette models. It is a direct replacement for the original equipment manufactured by General Motors, made from high-quality materials, and easy to install. By choosing this vacuum valve, you are investing in a reliable, authentic, and functional replacement part that will ensure optimal performance and longevity for your Corvette.

Pros and Cons of buying a Parts Guy's 5638740 Water Shutoff Vacuum Valve for 1977-1979 Corvette (Sto)

I. Introduction

The Parts Guy's 5638740 water shutoff vacuum valve is a popular aftermarket solution for Corvette (Sto) owners looking to replace their original faulty or malfunctioning valves. This article aims to help potential buyers make an informed decision by presenting the key advantages and disadvantages of purchasing this product.

II. Pros (Advantages)

1. Fits Corvette Years: The valve is specifically designed for Corvettes manufactured between 1977 and 1979, ensuring a perfect fit and compatibility with these vehicles.

2. Easy Installation: Users report that the installation process is relatively straightforward, making it a viable option for DIY enthusiasts.

3. Improved Functionality: The vacuum-operated design of the valve offers enhanced functionality compared to the original mechanical valves, providing better leak prevention and water protection.

4. Durability: The valve is constructed from high-quality materials, ensuring longevity and resistance to corrosion, common issues with the original valves.

5. Positive Customer Reviews: The majority of customers who have purchased and installed this valve have reported significant improvements in their cooling system's performance and reliability.

III. Cons (Disadvantages)

1. Price: Compared to the original OEM valves, the aftermarket alternative may come with a higher price tag, which could be a deterrent for some buyers.

2. Availability: The valve may not be readily available at local auto parts stores, requiring buyers to order it online or through specialized Corvette parts suppliers.

3. Requires Additional Tools: Some users have reported that the installation process requires specific tools, which could add to the overall cost and time investment.

IV. Conclusion

In conclusion, The Parts Guy's 5638740 water shutoff vacuum valve offers several advantages, including improved functionality, durability, and ease of installation, making it a worthwhile investment for Corvette (Sto) owners dealing with faulty or malfunctioning original valves. However, potential buyers should consider the higher price tag, potential tool requirements, and limited availability when making their decision.

V. Recommendation

Based on the presented pros and cons, we recommend The Parts Guy's 5638740 water shutoff vacuum valve for Corvette (Sto) owners seeking a reliable and functional replacement for their faulty original valves. This aftermarket solution provides significant improvements in performance and reliability while ensuring a perfect fit for the specified Corvette years. While the higher price point and potential tool requirements may be a concern for some, the overall benefits and positive customer reviews make this a strong recommendation for those looking to upgrade their cooling system.

Details:

If you purchase this part and are still having the problem, issue likely with another. This is a New Old Stock NOS switch. NOTE: Electronics can be very complex. It has some light shelf wear but In near show quality condition.

The box is a little beat up. 1977-79 Corvette, Hot Water Shut Off Vacuum Valve, NOS New Old Stock. That means it was manufactured years ago from GM but never used or Installed. Part-guy:: Toggle navigation Menu.

This listing is for an Original GM/Delco NOS New Old Stock Hot Water Shut Off Vacuum Valve Part # 5638740 a 1977-79 Corvette. NOS 77-79 Corvette Hot Water Shut Off Vacuum Valve 78 1977 1978 1979 New Old Stock, Valve-NOS 5638740 68-79 Corvette-, Purchasing this part will not necessarily resolve an issue you're having.

specifications instrcluster:

  • for models: Fl, Corvette
  • for years: 1977-1979
  • brand: Llc In Tampa
  • mpn: 5638740
  • part type: Vacuum Valve Com
  • items included: Hot Water Shut Off Vacuum Valve
  • universal fitment: No
  • vintage part: Yes
  • country of origin: United States
  • california prop 65 warning: Warning. Everything Sold Into The State Of California Contains Agents Known To The State Of California To Cause Cancer And Birth Defects, Reproductive Harm, Or Other, As Yet Unnamed, Harm To Its Citizenry. More Info At Www.p65warnings.ca.gov

returns Instrcluster:

  • policy: No Returns

offer Instrcluster:

  • availability: In Stock
  • started: January 12, 2026
  • quantity: 1
  • options: Ship-to-home
  • sold: 0

shippIng Instrcluster:

  • transit: 3-9 Days
  • class: Expedited
  • carrier: USPS
  • cost: $15.35
  • type: Calculated
  • service: USPS Priority Mail

general Instrcluster:

  • Interior Parts Accessories > Gauges > Instrument Clusters
  • condition: Used

payments Instrcluster:

  • other
  • credit card: Discover
  • wallet: Google-pay

seller Instrcluster:

  • ratIng: 100.0%
  • city: Tampa, Florida
  • # reviews: 6861
for models: fl, corvette, for years: 1977-1979, part type: vacuum valve com, items included: hot water shut off vacuum valve, universal fitment: no, vintage part: yes, country of origin: united states, california prop 65 warning: warning. everything sold into the state of california contains agents known to the state of california to cause cancer and birth defects, reproductive harm, or other, as yet unnamed, harm to its citizenry. more info at www.p65warnings.ca.gov,
category: auto parts > interior parts accessories > gauges > instrument clusters, sku: 14037083567770861,
Llc In Tampa 5638740 Is Similar To:

Copyright © instrcluster.com