Description
Product Overview
The Edelbrock 6mm Aluminum Coupling is a precision‑engineered component designed for automotive fuel systems. Constructed from high‑grade aluminum with a durable painted exterior, the fitting offers excellent corrosion resistance while remaining lightweight at just 0.704 ounces. It utilizes a standard NPT thread for secure, leak‑free connections and conforms to the model number 640000 (RUS‑640000). Manufactured by Russell under Edelbrock’s rigorous quality standards, this coupling is a single‑piece solution that integrates seamlessly into performance manifolds, fuel rails, and aftermarket upgrades.
Usage
This coupling is ideal for street‑tuned vehicles, race‑ready builds, and any application where a reliable fuel line connection is critical. Install it on high‑flow fuel rails, performance carburetors, or custom fuel distribution blocks to ensure consistent fuel delivery under extreme conditions. Its 6mm size fits a wide range of OEM and aftermarket components, making it a versatile choice for both professional mechanics and DIY enthusiasts. 
Why Choose Us
Edelbrock’s commitment to American manufacturing guarantees that each coupling undergoes strict ISO 9001:2008 certified quality control. Every unit is tested on state‑of‑the‑art equipment to verify thread integrity, dimensional accuracy, and finish durability. The brand’s heritage of performance engineering means the coupling is not only functional but also engineered to withstand the high pressures and temperatures typical of performance fuel systems. Choosing this product means benefiting from decades of automotive expertise, rigorous testing, and a reputation for reliability.
Key Features
- Lightweight aluminum construction reduces overall system weight.
- Painted exterior finish provides corrosion resistance and a clean look.
- Standard NPT thread ensures a tight, leak‑free seal.
- Compact 6mm size fits a broad range of performance fuel components.
- Manufactured in the USA under ISO 9001:2008 quality standards.
FAQ
What type of thread does this coupling use?
The Edelbrock coupling uses a standard NPT (National Pipe Thread) which is compatible with most fuel system components that require a secure, threaded connection.
Is the painted finish durable enough for high‑temperature environments?
Yes, the painted finish is formulated to resist heat and corrosion, making it suitable for high‑performance engines and racing applications.
Can this coupling be used with both gasoline and diesel fuel systems?
It is designed primarily for gasoline fuel systems, but it can be used with diesel applications provided the system pressure does not exceed the coupling’s rated limits.
What is the weight of the coupling?
The unit weighs approximately 0.704 ounces (0.02 kilograms), contributing minimal mass to the overall fuel system.
Is this part compatible with aftermarket performance manifolds?
Absolutely. The 6mm size and NPT threading make it a versatile fit for a wide range of aftermarket manifolds, fuel rails, and distribution blocks.
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