DORMAN/AUTOGRADE 490-121.1 Fnpt 080358188575 COUPLING-1/4

( Brand: Dorman/autograde ), ( Manufacturer Part Number: 490-121.1 ), ( Manufacturer Warranty: 1 Year ), ( California Prop 65 Warning: This Product Contains Chemicals Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm. ), ( UPC: 080358188575 ), ( Type: Hardware, Fasteners And Fittings )

Review DORMAN/AUTOGRADE Coupling-1/4 Inch Fnpt

The Dorman/Autograde 490-121.1 is a high-quality 1/4 inch Female NPT (National Pipe Thread) coupling designed for automotive applications. This coupling is an essential component for connecting pipes or hoses in various automotive systems, such as cooling, fuel, or power steering.

The 490-121.1 coupling is manufactured to meet the stringent requirements of the automotive industry. It boasts a rugged design, with a robust construction that ensures durability and reliability, even under the most demanding conditions. The coupling features a smooth, polished finish to prevent leaks and ensure a secure connection.

This coupling is made from brass, a material known for its superior strength, corrosion resistance, and ability to withstand extreme temperatures. Brass is an ideal choice for automotive applications due to its excellent resistance to the harsh chemicals and high temperatures commonly found in automotive systems.

The 1/4 inch NPT threading on both ends of the coupling ensures a secure connection to the surrounding pipes or hoses. The threading is precision machined to ensure a perfect fit and a leak-free seal. The coupling is also compatible with other NPT threaded fittings, allowing for flexibility in designing and configuring automotive systems.

The 490-121.1 coupling from Dorman/Autograde is an excellent choice for automotive repair professionals, DIY enthusiasts, and automotive manufacturers looking for a reliable, high-quality coupling solution. With its rugged design, superior materials, and precision threading, this coupling is sure to provide years of trouble-free performance in even the most demanding automotive applications.

A Comprehensive Analysis of Buying Dorman/Autograde 490-121.1 Coupling (1/4 inch FNPT)

The Dorman/Autograde 490-121.1 coupling is a 1/4 inch Female National Pipe Thread (FNPT) type, designed to connect various automotive components. This analysis aims to provide you with valuable insights about the advantages and disadvantages of purchasing this coupling.

1. Universal Fitment: The Dorman/Autograde 490-121.1 coupling is compatible with a wide range of automotive applications, making it a versatile option for repairing or upgrading various systems.

2. High-Quality Material: The coupling is made from high-quality materials that ensure durability and resistance to corrosion, providing extended service life.

3. Easy Installation: The 1/4 inch FNPT threading allows for easy installation and removal, making it convenient for DIY enthusiasts and professional mechanics alike.

4. Affordable: Compared to OEM counterparts, the Dorman/Autograde 490-121.1 coupling is generally more affordable, making it a cost-effective solution for automotive repair and maintenance.

1. Potential for Leaks: Since it is a coupling, there is a possibility of leaks if the threads are not properly sealed or if the gasket is damaged. However, this issue can be mitigated by ensuring a proper installation and using a high-quality gasket.

2. Limited Brand Compatibility: While the Dorman/Autograde 490-121.1 coupling is compatible with various automotive applications, it may not be the best option for specific brands that require proprietary components.

3. Potential for Cross-Threading: The FNPT threading can be susceptible to cross-threading if not installed correctly, which can lead to damage and the need for replacement.

The Dorman/Autograde 490-121.1 coupling (1/4 inch FNPT) provides several advantages, including universal fitment, high-quality materials, easy installation, and affordability. However, it also comes with potential disadvantages, such as the possibility of leaks and cross-threading. To ensure a successful installation and to mitigate any potential issues, it is essential to follow proper installation procedures and use a high-quality gasket.

If you are in need of a 1/4 inch FNPT coupling for automotive applications, the Dorman/Autograde 490-121.1 coupling is a cost-effective and versatile option. Ensure that you follow proper installation procedures and use a high-quality gasket to minimize the risk of leaks and other potential issues.

Details:

part #: 4901211 prices

• $15.48-$27.56

specifications toolssupp:

• brand: Dorman/autograde
• mpn: 490-121.1
• manufacturer warranty: 1 Year
• california prop 65 warning: This Product Contains Chemicals Known To The State Of California To Cause Cancer And Birth Defects Or Other Reproductive Harm.
• upc: 080358188575
• type: Hardware, Fasteners And Fittings

returns toolssupp:

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

seller toolssupp:

• rating: 99.5%
• city: Colmar, Pennsylvania
• # reviews: 130284

shipping toolssupp:

• class: Economy, Standard, Expedited, One-day
• type: Fixed
• cost: $0.00
• service: Economy, Standard, Expedited, Overnight
• transit: 4-8 Days

payments toolssupp:

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

general toolssupp:

• Motors > Automotive Tools Supplies > Other Auto Tools Supplies
• condition: New

offer toolssupp:

• options: Ship-to-home
• started: March 8, 2026
• quantity: 2
• availability: In Stock
• sold: 0

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