DORMAN 555-015 Steel Cup Expansion Plug 019495555155 29/32 0.310

( Brand: Dorman ), ( Part Type: Expansion Cup Plug ), ( Manufacturer Part Number: 555-015 ), ( Style: Plug Stopper ), ( Color: Silver ), ( Material: Steel ), ( Item Weight: 0.01 ), ( UPC: 019495555155 )

Review DORMAN Steel Cup Expansion Plug 29/32 Inch Height 0.310 Compatible

The Dorman 555-015 Steel Cup Expansion Plug is a crucial automotive part designed for cooling systems in various applications. This plug, with a size of 29/32 inches and a thread size of 0.310 inches, is engineered to expand when heat is applied, allowing the coolant to flow effectively and maintain optimal engine temperature.

Made of robust steel material, this expansion plug ensures durability and reliability even under the most demanding conditions. Its cup design facilitates the expansion process, enabling the plug to seal tightly against the engine block to prevent coolant leaks. The 0.310 thread size is compatible with a wide range of cooling systems, ensuring a universal fit for many vehicles.

Installing the Dorman 555-015 plug is a straightforward process. Once the old plug is removed, the new one can be hand-tightened or torqued to the recommended specification. The plug comes with a protective washer to ensure a clean and secure installation.

This expansion plug is an essential component for maintaining the cooling system's functionality, ensuring the engine operates efficiently and stays protected against overheating. The Dorman 555-015 Steel Cup Expansion Plug is a high-quality, affordable solution for DIY enthusiasts and professional technicians alike.

Dorman 555-015 Steel Cup Expansion Plug: A Comprehensive Analysis

The Dorman 555-015 Steel Cup Expansion Plug is a popular aftermarket replacement for the original equipment in various vehicles. This product is designed to prevent coolant leaks by expanding with the thermal pressure of the coolant system. In this analysis, we will discuss the key features, benefits, and potential drawbacks of this part.

1. Material: The Dorman 555-015 Steel Cup Expansion Plug is made of high-quality steel, ensuring durability and reliability.

2. Temperature resistance: It can withstand extreme temperatures, making it suitable for various vehicle applications.

3. Easy installation: The plug design allows for easy installation, making it a popular choice among DIY enthusiasts and professional mechanics.

4. OEM compatibility: The Dorman 555-015 Steel Cup Expansion Plug is designed to fit and function similarly to the original equipment, ensuring proper engine cooling and preventing leaks.

1. Availability: Since it is an aftermarket part, it may not be readily available at local auto parts stores, and customers may need to order it online.

2. Price: The Dorman 555-015 Steel Cup Expansion Plug may be slightly more expensive than the OEM equivalent, but the cost difference is usually offset by its durability and reliability.

3. Variability in fitment: While the Dorman 555-015 is designed to fit various applications, it is essential to ensure proper fitment before installation to avoid potential issues.

The Dorman 555-015 Steel Cup Expansion Plug is a high-quality aftermarket replacement that offers improved durability, reliability, and ease of installation compared to the original equipment. While it may have some potential drawbacks, such as availability and variability in fitment, the benefits typically outweigh the cons. If you are in need of a reliable coolant system component, the Dorman 555-015 is a solid choice.

If you are in the market for a new coolant system component and are considering the Dorman 555-015 Steel Cup Expansion Plug, we recommend giving it a try. Its durability, reliability, and ease of installation make it a popular choice among both DIY enthusiasts and professional mechanics. As with any aftermarket part, ensure proper fitment before installation to avoid potential issues.

Details:

Dorman 555-015 Steel Cup Expansion Plug 29/32 In. Building Hardware. Ideal solution - this plug is a reliable replacement for an original part that missing or has failed due to fatigue. Please hover over the I to verify fitment notes match your vehicle.

Durable construction - this part is made from quality materials to ensure reliable performance and long service life. Trustworthy quality - backed by team of product experts in the USA and more than a century automotive experience. height 0.310 Compatible with Select model's, 10 Pack. Input Cell phone Accessories.

Ensure fit - Input your vehicle into the garage tool and check Confirmed Fit bar at top of page.

part #: 555015 prices

• $11.00-$26.66

specifications teatotalator:

• brand: Dorman
• part type: Expansion Cup Plug
• manufacturer part number: 555-015
• style: Plug Stopper
• color: Silver
• material: Steel
• item weight: 0.01
• upc: 019495555155

returns teatotalator:

• method: Money back
• policy: Returns Accepted
• paid by: Seller
• time: 30 Days

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• cost: $0.00
• transit: 5-7 Days
• class: Economy
• carrier: UPS
• type: Fixed
• service: UPS Ground Saver

general teatotalator:

• Small Kitchen Appliances > Coffee, Tea Espresso Makers > Coffee, Tea Espresso Parts
• condition: New

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seller teatotalator:

• city: wood bridge, Virginia
• # reviews: 236625
• rating: 99.1%

offer teatotalator:

• availability: In Stock
• quantity: 2
• started: November 12, 2025
• sold: 0
• options: Ship-to-home