1. Carburetor Parts On Sale
  2. sku: 5764099937180604
  3. HOLLEY 45-377

HOLLEY 45-377 Performance Choke Thermostat Cap Retainer Kit 090127067444

45-377 Holley Performance Choke Thermostat Cap Retainer Kit

( Brand: Holley ), ( Type: Carburetor Choke Thermostat Cap Retainer ), ( Country/region Of Manufacture: United States ), ( Item Length: 7.000 ), ( UPC: 090127067444 ), ( Manufacturer Part Number: 45-377 )

Review HOLLEY Performance Choke Thermostat Cap Retainer Kit

The Holley 45-377 Performance Choke Thermostat Cap Retainer Kit is an essential upgrade for any carbureted engine that utilizes a choke system. This kit is specifically designed to provide improved performance and reliability compared to OEM parts.

The cap retainer kit includes a high-quality thermostat cap and a retainer to securely hold it in place. The thermostat cap is made from premium materials, ensuring superior sealing and heat transfer capabilities. Its unique design allows it to withstand the high temperatures and pressures that occur during engine start-up, providing consistent and reliable performance.

The retainer in this kit is engineered to provide a secure and snug fit on the choke thermostat, preventing any potential leaks or rattling sounds. Its durable construction guarantees long-lasting performance, even in the most demanding conditions.

Installing the Holley 45-377 Performance Choke Thermostat Cap Retainer Kit is a straightforward process that can be completed in a short amount of time. It is compatible with most Holley and other popular carburetor models, making it a versatile option for a wide range of applications.

By upgrading to the Holley 45-377 Performance Choke Thermostat Cap Retainer Kit, you can enjoy the benefits of improved engine performance and reliability. This kit is an excellent investment for any enthusiast looking to enhance the functionality of their carbureted engine. Whether you're restoring a classic car or building a high-performance hot rod, this kit is an essential addition to your project. With its high-quality materials, reliable construction, and straightforward installation process, the Holley 45-377 Performance Choke Thermostat Cap Retainer Kit is an excellent choice for any carbureted engine.

Holley 45-377 Performance Choke Thermostat Cap Retainer Kit: A Detailed Analysis

Introduction:

The Holley 45-377 Performance Choke Thermostat Cap Retainer Kit is designed to enhance the functionality and durability of your choke system in carbureted applications. In this analysis, we will discuss the potential advantages and disadvantages of investing in this product.

Pros:

1. Improved Performance: This kit is designed to provide better performance by ensuring a consistent choke operation, which can be crucial for cold starts.

2. Enhanced Durability: The high-quality materials used in this kit can help increase the longevity of your choke system.

3. Easy Installation: The kit comes with all necessary components, making the installation process straightforward and time-efficient.

4. Simple Design: The retainer design helps prevent the cap from coming off during operation, reducing the risk of damage and potential engine issues.

5. Compatibility: This kit is compatible with a wide range of Holley carburetors, making it a versatile choice for various applications.

Cons:

1. Price: The Holley 45-377 Performance Choke Thermostat Cap Retainer Kit may be priced higher than some aftermarket alternatives, which could be a deterrent for some buyers.

2. Limited Temperature Range: The thermostat in this kit is designed for a specific temperature range, which may not be suitable for all climates or applications.

3. Requires Custom Drilling: For some installations, custom drilling may be necessary, which could add to the installation time and complexity.

Conclusion:

The Holley 45-377 Performance Choke Thermostat Cap Retainer Kit offers several advantages, including improved performance, enhanced durability, and easy installation. However, it comes with some drawbacks, such as the higher price point and potential custom drilling requirements. Ultimately, the decision to purchase this kit depends on your specific application, budget, and the importance you place on the potential benefits.

Recommendation:

If you are looking for a reliable and durable solution to enhance your carbureted engine's cold start performance and are willing to invest in a high-quality product, the Holley 45-377 Performance Choke Thermostat Cap Retainer Kit could be an excellent choice for you. However, if you are on a tight budget or have limited installation capabilities, you may want to consider alternative options.

part # 45377 prices

  • $5.95-$27.99

specifications carbcaddie:

  • brand: Holley
  • type: Carburetor Choke Thermostat Cap Retainer
  • country/region of manufacture: United States
  • item length: 7.000
  • upc: 090127067444
  • manufacturer part number: 45-377

returns carbcaddie:

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

offer carbcaddie:

  • options: Ship-to-home
  • started: July 26, 2025
  • sold: 0
  • quantity: 1
  • availability: In Stock

general carbcaddie:

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

payments carbcaddie:

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

seller carbcaddie:

  • rating: 98.7%
  • # reviews: 114069

shipping carbcaddie:

  • service: Standard
  • transit: 4-9 Days
  • class: Standard
  • type: Fixed
  • cost: $0.00
type: carburetor choke thermostat cap retainer, country/region of manufacture: united states, item length: 7.000,
category: auto parts > car truck parts accessories > air fuel delivery > carburetor parts, sku: 5764099937180604,

Holley 45-377 Is Similar To:

carbcaddie logo
4 offers $5.95–$27.99 USD
  • Offer #1: $5.95 price + $11.95 delivery = $17.90* total. Used on most Holley performance carburetors. New top quality Holley choke thermostat installation kit with spring steel choke thermostat clamp and 3 retaining screws.+$11.95 shipping
  • Offer #2: $27.99 price + free delivery = $27.99* total. Choke Thermostat Cap Retainer. Holley has been the undisputed leader in fuel systems for over 100 years.FREE SHIPPING
  • Offer #3: $20.73 price + free delivery = $20.73* total. Sold As Each (1 Kit). Holley QFT AED Demon CCS Choke Cap Retainer Ring Kit.FREE SHIPPING
  • Offer #4: $55.95 price + free delivery = $55.95* total. Product Details.FREE SHIPPING