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Nitrous Outlet fuel line adapter fittings will keep your line securely threaded and tapped into your fuel system. The adapters are machined from billet aluminum with a natural or black anodized finish. Some models are laser-etched with the Nitrous Outlet N2O logo. Most include a 1/8 in. x 4 AN fitting, and an 1/8 in. NPT port—ideal for installing a fuel pressure switch or gauge. Connect your fuel line, fuel rail, and fuel solenoid for performance with Nitrous Outlet adapter fitting. Order the size, attachment style, and other options needed to plumb your application.
( 4 )
$65.99
$56.09
NOS late model billet fuel line adapters eliminate cutting, drilling, and modifications when installing nitrous on a late model fuel injected vehicle. These black anodized adapters will ease some of your plumbing problems. Simply disconnect the OE fuel hose and install an adapter between the OE fuel rail and fuel hose. The adapters include 1/8 in. NPT ports and are available in multiple fitting sizes.
( 7 )
$62.45
Installing a nitrous system on a newer EFI vehicle can be quite a hassle. Nitrous Express late model billet fuel line adapters can help you with that. They feature a high-flow design that makes the chore of tapping factory fuel systems safe and easy. No cutting or drilling—just a quick, simple attachment that takes only minutes. The adapters have two female 1/8 in. NPT outlets and include a fitting for use on 3/8 in. and 10mm fuel lines.
Not Yet Reviewed
$91.48
On Sale
These Aeromotive Ford fuel tank return line adapters are just what you are looking for. Aeromotive builds these fittings with the same quality standards as their other products--second to none. Their billet aluminum construction will resist corrosion, even when exposed to fuel, and they fit in the stock fuel pump location. Don't mess around anymore--go straight to the source with these Aeromotive Ford fuel tank return line adapters.
( 3 )
$72.65
$65.38
Earl's Performance transmission cooler line adapters make your plumb job easier. Integrating into the transmission and adapting to AN lines allows additional tunnel clearance and freedom that the original hard lines cannot. These adapters are available for many plumbing situations and custom applications. They're machined from high-quality materials, including nickel plated steel or billet aluminum with a black anodized finish, and have high-pressure capabilities. Order the adapter size and configuration needed for your application.
( 33 )
$70.79
Earl's Performance quick-connect fuel rail adapter fittings are a slick, easy way to use AN plumbing with late model OE fuel rails and fuel lines. Each quick-connect features two reusable metal retainers that won't break or melt. The secondary retaining clip is attached to the fitting on a tether chain. These fittings are available in a variety of sizes, materials, finishes, and attachment styles. Product features: * One-hand "click" connection to OE line * Metal internal and external retainer provides a reliable and reusable fuel connection that cannot snap loose or melt like some plastic retainers * O-ring material developed specifically for the same application on factory vehicles to tolerate today's fuel additives and E85 * Tether chain keeps secondary retainer clip attached to the adapter, so it's always handy (installed retainer can also be safety wired to adapter for additional safety) * Fits most vehicles with 3/8 in. fuel rail and SAE standard connection
( 4 )
$99.95
Trying to tap the fuel rail? Nitrous Express has the answer. These trick billet aluminum adapters allow the fuel injector rail on all return-less style engines to be tapped for nitrous usage or a fuel pressure gauge. The high-flow adapters have dual outlets for multiple uses. They're available in different sizes and attachment options.
( 14 )
$61.41
Radium Engineering split-flow flex fuel sensor adapters allow implementing an ethanol content sensor into a high-flow fuel line. The design has dual passages that the fuel can flow through, so there is no loss in fuel flow. These adapters can be used on feed or return fuel lines. 10 AN female ports will require adapters to match the hose in the vehicle.
( 1 )
$94.95
On Sale
Aeromotive fuel rail fitting adapters are designed to fit your stock return lines and fuel rails. They're made of CNC-machined stainless steel or billet aluminum for durability against any type of gasoline. The adapters use the factory spring lock design with an outlet made in an AN size specifically for braided stainless steel hose. Order the fitting size, style, and finish needed for your applications.
( 17 )
$56.75
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$118.25
$51.08
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$106.42
Holley fuel rail adapter fittings are designed to connect Holley fuel rails to a GM factory fuel line. They're machined from aluminum (black anodized) or steel (yellow dichromate), and are available in different sizes, angles, and attachment options.
( 3 )
$52.25
On Sale
Nitrous Outlet billet fuel rail adapters are machined aluminum fittings designed to provide a safe and simple way to tap into a vehicle's existing fuel line for a nitrous system—without needing to cut, drill, or modify the factory fuel rail. These adapters install between the factory fuel rail and fuel line, creating an accessible port to supply fuel to the nitrous system's fuel solenoid, often with additional ports for gauges or switches. They're available for a variety of applications, including many Ford, Nissan, and Chevy vehicles from 1999 and up.
( 1 )
$62.99
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$97.99
$53.54
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$83.29
On Sale
Waterman gear fuel pump flange fittings provide easy hook-ups for your fuel line. Available in multiple attachment types, they're made from aluminum, given a black anodized finish, and are fully compatible with all common fuel types. Order the fitting sizes needed for your application.
Not Yet Reviewed
$84.99
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$100.99
$52.50
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$90.89
On Sale
Aeromotive Spur Gear fuel pump flange fittings provide easy hook-ups for your fuel line. Available in multiple attachment types, they're made from aluminum, given a black anodized finish, and are fully compatible with all common fuel types. Order the Spur Gear fuel pump flange fitting best suited to fit your application.
Not Yet Reviewed
$79.00
$71.10
Don't leave your fuel line un-terminated--connect it to your fuel cell or tank with these Summit Racing™ fuel cell bulkhead adapters. The anodized aluminum adapters won't restrict fuel flow and come with two PTFE washers.
( 58 )
$100.99
On Sale
Aeromotive AN O-ring adapter fittings are just what you need to connect AN fuel lines to AN O-ring ports. These adapter fittings are designed with a full-flow radius transition from the port opening to the AN 37 degree flare. Each fitting is CNC-machined from billet aluminum and is anodized for durability and corrosion-resistance. They're available in nearly two dozen size/angle configurations.
( 65 )
$62.05
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$100.75
$55.84
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$90.68
On Sale
Aeromotive AN quick-connect adapter fittings allow you to connect AN fuel lines to factory quick-connect fuel lines. They feature CNC-machining and a quality finish for durability and corrosion resistance. Get your fuel lines routed any way you like with an assist from the Aeromotive AN quick-connect adapter fittings best suited for your application!
( 8 )
$56.75
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$90.15
$51.08
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$81.14
Moroso reducers have one job--connect different sized lines and hose together or to other components in your fuel, cooling, or other fluid system. The fittings are made from anodized aluminum.
Not Yet Reviewed
$55.99
On Sale
Aeromotive couplers offer more area and smoother transitions from the inlet to the outlet, resulting in less restriction than any other fitting line. Machined from 6061 T-6 aluminum or stainless steel for a precision fit and unmatched flow, Aeromotive specialty fittings, port adapters, and couplers are available in a variety of AN sizes and configurations. The billet aluminum fittings are anodized Type II bright dip black for corrosion protection and unrivaled aesthetics, plus all Aeromotive fittings and adapters are fully compatible with gasoline and alcohol-based fuels. Order the couplers needed for your application.
( 5 )
$56.75
$51.08
Earl's bulkhead adapter fittings provide an easy way to securely connect your lines together through firewalls, panels, etc. They are available in aluminum or steel, and in a variety of sizes, configurations, and finishes.
( 31 )
$59.95
On Sale
Holley has fittings to adapt different sized fuel lines to bare Holley fuel bowls, as well as hose and banjo fittings for special applications.
( 106 )
$66.55
With Russell tee adapter fittings, you can connect just about any hose or line to any other hose or line. For instance, they're ideal for tapping off an existing line or hose or connecting a line to a fuel regulator or some other fluid-system component. The possibilities seem almost limitless. What's more, they're available in both stainless steel and blue anodized aluminum to suit your needs and your budget.
( 16 )
$51.95
On Sale
DeatschWerks bulkhead adapter fittings are constructed from heat-treated 6061 aluminum, and then anodized for further protection. The union fittings are available in a variety of styles and sizes to complete your job with the best fit for leak-free performance. Plumbing a fuel system has always been more difficult than it should be. DeatschWerks plumbing line helps to simplify this process by providing you with everything you need—and nothing you don't.
( 7 )
$119.00
$107.10
On Sale
The original GM brazed vent tube manifold does not take into consideration the aftermarket intakes and accessories we put on our performance vehicles. Replace the rigid hard lines with Earl's Performance LS steam vent adapters. These adjustable outlets are O-ring seal adapters designed to convert to -3 or -4 AN plumbing. Earl's steam tube adapters are the most adjustable and lowest profile available. These adapters look as nice as they are installation-friendly. There are several kits available to allow for the optimal routing on your application, including dual outlet options, which eliminate the need for a Tee adapter.
( 18 )
$64.98
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$76.45
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