Fuel system fittings are critical components that ensure the safe and efficient delivery of fuel to your engine. A faulty or incompatible fitting can lead to leaks, performance issues, or even safety hazards. Understanding the different types and considerations will help you select the most appropriate replacement for your vehicle.
- Introduction: 30pcs 11 size includes 9 straight , 6 90 degree elbows and 15 pipe connector fittings (3 different models) Fuel line quick connector repair kit.
- Products: 11 size fuel line connector fittings; Straights connectors - 11.8mm x 10mm&9.89mm x 8mm&9.49mm x 8mm&7.89mm x 6mm&6.3mm x 3mm; 90 Degree Elbow connectors - 9.89mm x 8mm&9.49mm x 8mm&7.89mm x 6mm; Straight pipe connectors - 9.89mm x 8mm& 9.49mm x...
- Material: Nylon polyamide. Lightweight, wear-resistant and self-lubricating; Nylon fuel line connectors can last in high temperature environments, and is not easily damaged during long-term use, reducing the frequency of maintenance and replacement.
- Process: Assorted fuel line quick connector kits come in a variety of sizes; fine manufacturing process and design, with double O-ring design to ensure product safety and no leakage
- [Size] 6AN to 3/8 inch barb; Thread size of 6AN: 9/16-18UNF, Widely used in fuel systems, oil coolers, steam emission setups, and for transitions in fuel, oil, or coolant lines. It is compatible with rubber hoses, including SAE 30R7 NBR
- [Package include] 6AN Push Lock Kit. Contains 2 aluminum straight fittings and 2 x 45 90 180 degree elbow fittings black with 10 stainless steel clamps
- [Material] 6061-T6 aluminum construction withstands 1500 PSI and -65°F to 252°F temperatures – suited for most automotive/industrial environments. Barbed ends designed specifically for standard rubber fuel hose compatibility (not for hardline or PTFE)
- [Durable & Corrosion Resistant] Constructed from Aluminum materials with a sleek black finish. Resists corrosion and withstands demanding automotive or industrial environments
- Size: The fitting is an AN6 to 3/8" NPT adapter, and the thread size of the 6AN is 9/16-18 UNF
- Material: The fitting is made of aluminum alloy 6061-T6 with an anodized black surface.
- Sealing: The AN side of the flare is sealed at a 37-degree angle, and the NPT thread side is sealed with 60-degree tapered threads.
- Application: The fitting is widely used in fuel systems, cooling systems, power steering systems, and more.
- Size: The thread size of the AN6 hose end is 9/16-18 UNF. It is only compatible with 6AN stainless steel and nylon braided hoses. The ID of the 6AN line clamp is 0.51 inch (12.9 mm)
- Material: The fitting is made of 6061-T6 aluminum alloy with a black anodized surface
- Parameter: Maximum working pressure: 1,500 PSI. Working temperature range: -65℉ to 252℉
- Function: The 6AN swivel hose end kit includes multiple angled fittings and 6AN unions to meet various installation requirements. The 6AN separator clamp is used to secure and organize lines, keeping your project clean and organized
- [Size] The thread size of 6an is 9/16-18UNF. The OD of long rod is 3/8 inch.
- [Seal] The 6an flare efi fitting is sealed at 37 degree angle to avoid leakage.
- [Parameter] Working pressure: 1500psi; Temperature range: -40°F to 250°F.
- [Material] Made of aluminum alloy 6061-T6.
- [Size] The thread size of 6an is 9/16-18UNF. The ID of the screw is 3/8 inch and 5/16 inch.
- [Seal] The 6an flare efi fitting is sealed at 37 degree angle to avoid leakage.
- [Parameter] Working pressure: 1500psi; Temperature range: -40°F-250°F.
- [Material] Made of aluminum alloy 6061-T6. Spring lock is made of plastic.
- Size: The thread size of the 6AN fitting is 9/16-18 UNF. The AN side is sealed at a 37-degree angle
- Application: The swivel fitting works only with stainless steel braided and nylon braided hoses
- Material: The 6AN 90-degree fitting is made of 6061-T6 aluminum alloy
- Parameter: Maximum working pressure: 1,500 PSI. Working temperature range: -65℉ to 252℉ (-53℃ to 122℃)
- Size: 6AN male flare to 3/8 inch, the thread size of the 6 AN is 9/16 UNF. Fits to 3/8" OD hardline, please measure before purchase.
- Material: Made of aluminium alloy fitting and brass ferrule.
- Sealing: The AN thread of the flare is sealed by a 37 degree angle.
- Application:This 3/8 compression to 6an fitting is widely used in fuel delivery, fuel system, engine modification, etc.
- Size: This fitting is 10AN to 5/8" barb. The thread size of the 10AN end is 7/8-14 UNF
- Application: The barb fitting works only with rubber fuel lines
- Parameter: Maximum working pressure: 1,500 PSI. Temperature range: -40℉ to 248℉
- Material: The straight fitting is made of 6061-T6 aluminum alloy
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Last update on 2026-10-15 / Affiliate links / Images from Amazon Product Advertising API
How to Choose the Best Automotive Replacement Fuel System Fittings
Understanding Fuel System Fitting Types
Fuel system fittings come in various designs to accommodate different fuel lines and connection methods. Common types include barbed fittings, which push onto rubber hoses and are secured with clamps; compression fittings, which use a ferrule to create a seal on metal or plastic tubing; and O-ring fittings, often found in modern fuel injection systems for a leak-proof seal. Understanding your vehicle's existing fuel line material (rubber, nylon, steel) and diameter is the first step in identifying the correct fitting style.
Material and Durability Considerations
The material of the fuel fitting is paramount for longevity and compatibility with various fuel types, including gasoline and diesel. Brass is a popular choice due to its corrosion resistance and ease of machining, making it suitable for many applications. Stainless steel offers superior strength and excellent resistance to corrosion, ideal for harsh environments or high-pressure systems. Aluminum is lightweight and offers good corrosion resistance but can be more susceptible to damage than steel. Always ensure the material is rated for automotive fuel use.
Application-Specific Needs
When selecting a replacement fitting, consider the specific part of the fuel system it will connect. Fuel pump fittings, fuel rail connectors, and inline filter fittings all have unique requirements. Modern vehicles often utilize quick-connect fittings for ease of installation and serviceability, while older vehicles might use threaded or barbed connections. Verify the thread size, hose barb diameter, and overall configuration to match the original equipment or the replacement component you are installing.
Installation and Sealing
Proper installation is crucial for preventing leaks. For barbed fittings, ensure the hose is fully seated and secured with appropriate clamps. Compression fittings require careful tightening to achieve a seal without overtightening, which can damage the tubing or fitting. For O-ring fittings, ensure the O-rings are lubricated with a compatible fluid and seated correctly. Always consult the vehicle's service manual or the fitting manufacturer's instructions for specific installation guidelines.
