Specifications
Part Details:
Not CARB legal, not for sale or use in California on emission controlled vehicles. Not compatible with Subaru factory fuel lines, which are 5/16″. This adapter is sized for 3/8″ fuel lines, commonly used with the COBB Ethanol Content Sensor or other aftermarket fuel system components.
This COBB Billet Fuel Line Adapter lets you add a fuel pressure or temperature sensor directly to a 3/8″ fuel line, giving you a clean, purpose-built tap point instead of splicing or improvising a connection. Machined from billet aluminum and finished in black anodizing, it installs directly onto the COBB Ethanol Content Sensor or other compatible 3/8″ fuel system hardware, keeping the setup both functional and tidy.
A quick disconnect design allows fast fuel line removal for maintenance without needing tools.
Key Features
- Fits 3/8″ fuel lines on 2006 to 2021 Subaru WRX and STI aftermarket fuel system setups
- Not compatible with Subaru factory 5/16″ fuel lines
- Compatible with the COBB Ethanol Content Sensor
- 1/8″ NPT precision-threaded tap
- Billet aluminum construction, black anodized finish
- Quick disconnect design for tool-free fuel line removal
- Not CARB legal, cannot be shipped to or used in California
Frequently Asked Questions
Will this work on my factory fuel lines?
No. Subaru factory fuel lines are 5/16″, and this adapter is not compatible with them. If you need an adapter for factory lines, the COBB 5/16″ version is the correct part.
Is this legal in California?
No. This part is not CARB legal and cannot be shipped to or used in California on an emission controlled vehicle.
What is this typically used with?
It’s commonly used to install a fuel pressure sensor onto the COBB Ethanol Content Sensor or other aftermarket fuel system components running 3/8″ line.
Recommended Supporting Components
- WRX Fuel System Upgrades explore fuel delivery and monitoring components for your WRX build.
- STI Fuel System Upgrades explore fuel delivery and monitoring components for your STI build.
- E85 vs Pump Gas on WRX and STI: What Changes and Is It Worth It running an ethanol sensor? Start here.
Why Buy Fuel System Components from Wrench Masters?
Wrench Masters carries the small connectors and adapters that make fuel system monitoring possible, not just the sensors and gauges themselves. Getting the right line size the first time avoids a wasted order.
Shipping
Shipping Options:
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Delivery Times:
- In Stock: 3-7 Business Days
- Custom Orders: 2-6 Weeks, Please Email: [email protected] or Call: 727-565-9808 for Questions.
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