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
- Easy to use: These nylon fuel line quick connectors can be assembled quickly, with only push alignment and no additional operation required. The quick connectors are designed with voice recognition and can be heard clicking when in place. When connectors...
- Plastic Storage Container: Includes a durable and lightweight plastic storage container that provides a clean, organized space, makes fuel line connectors easy to sort and find, and provides cushioning and protection for connectors, reducing damage caused...
- Application: Hose quick connect fittings are widely used in machinery, automobiles, and ships. The quick connect hose fittings can quickly and easily connect various air, water, fuel, oil, and inert gas pipelines, such as plumbing pipes,car exhaust pipes...
- Timely reply: If you have any questions about the fuel line connector repair kits, please feel free to contact us. We will try our best to help you and give you a satisfactory answer.
- [Size] The thread size of 6an is 9/16-18UNF. The ID of spring lock 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 to 176°F.
- [Material] Made of aluminum alloy 6061-T6. Spring lock is made of plastic.
- [Application] Widely used in engine fuel rail, ls swap, transmission cooler, return line, fuel sensor, etc.
- Size: AN6 (9/16-18 UNF) male flare to 3/8 inch (9.5mm) push on hose barb, Pack of 2
- Manufactured from lightweight 6061-T6 billet aluminum; Anodized finish for strength, durability and anti-corrosion
- 37° sealing angle guarantees a positive seal at maximum operating pressure
- These AN to barb fittings are suitable for a wide range of automotive applications including Fuel, oil, diesel or water lines
- All Podavelle fittings and adapters are fully compatible with gasoline and alcohol based fuels
- [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.
- [Application] Widely used in engine fuel rail, ls swap, transmission cooler, return line, fuel sensor, etc.
- 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.
- Note:Only applicable to stainless steel or aluminum hardline.
- Size: The fitting is female AN6 to female AN6. The thread size is 9/16-18 UNF.
- Parameter: The maximum working pressure is 1,500 PSI, and the working temperature range is -40℉ to 250℉.
- Sealing: The AN side of the flare is sealed by a 37-degree angle.
- Material: The fitting is made of aluminum alloy 6061-T6 with a black anodized surface.
- Feature: The fitting is designed with a 360° swivel for easy assembly, and it can be reused and recycled.
- 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.
- Notice: To ensure no leakage at the NPT end, sealant or PTFE tape is strongly recommended.
- [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.
- [Application] Widely used in engine fuel rail, ls swap, transmission cooler, return line, fuel sensor, etc.
- 【HARDLINE FITTING & STANDARD PARTS】: Only compatible with hard tube. 6AN to 5/16 inch,the thread size of the 6AN is 9/16UNF.It's fits to 5/16" OD hardline,please measure before perchase.
- 【AIRCRAFT GRADE MATERIAL】: 6 AN male flare thread (9/16-18) to 5/16 inch tube hose fitting connector with brass insert Lightweight 6061-T6 cnc machined billet aluminum black anodized Black anodized finish.
- 【TIGHTNESS & CORROSION RESISTANCE】Manufactured to exacting standards for tight, leak-free connections. Connect 5/16" tube to -6 AN Male ends.Black anodized finish assure positive sealing and come in a corrosion-resistant finish.
- 【WIDE RANGE OF APPLICATIONS】: This 5/16 hardline to 6an fitting is widely used in Brake System / Air & Fuel Delivery/ Engine Modification / Oiling System / Cooling System.
- 【WORKING PRESSURE & TEMPERATURE】Maximum working pressure: 4000PSI,Working temperature: -65°F to 252°F.
- [Size] The thread size of 6an is 9/16-18UNF. The ID of the screw 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.
- [Application] Widely used in engine fuel rail, ls swap, transmission cooler, return line, fuel sensor, etc.
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Last update on 2026-07-16 / 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.
