
- Ready for Use: This adapter is pre-configured for a quick and simple installation.
- Durable Construction: Made from corrosion-resistant zinc, it's built to last.
- Perfect Fit: Designed specifically for a 2″ diameter filler neck.
- Standard Component: Included in many FASS lift pump kits, confirming its critical role and compatibility.
- Prevents Aeration: Ensures a consistent fuel return, which helps to de-aerate the fuel and protect your injection system.

Upgrade your fuel system with the FASS Fuel Systems RM-1001 Ready for Use – 1/2″ Zinc Return Manifold. This essential adapter, which is a standard component in many FASS lift pump kits, simplifies the installation process and ensures your system operates at peak efficiency. Designed to fit a 2″ diameter filler neck, it provides a secure and reliable return point for excess fuel, maintaining consistent pressure and preventing aeration. The RM-1001 is the key to unlocking the full potential of your FASS lift pump, ensuring clean, de-aerated fuel reaches your engine for optimal performance and longevity.
Key Features of the FASS RM-1001 Return Manifold:
Ready for Use: This adapter is pre-configured for a quick and simple installation.
Durable Construction: Made from corrosion-resistant zinc, it's built to last.
Perfect Fit: Designed specifically for a 2″ diameter filler neck.
Standard Component: Included in many FASS lift pump kits, confirming its critical role and compatibility.
Prevents Aeration: Ensures a consistent fuel return, which helps to de-aerate the fuel and protect your injection syst[...]
- Ready for Use: This adapter is pre-configured for a quick and simple installation.
- Durable Construction: Made from corrosion-resistant zinc, it's built to last.
- Perfect Fit: Designed specifically for a 2″ diameter filler neck.
- Standard Component: Included in many FASS lift pump kits, confirming its critical role and compatibility.
- Prevents Aeration: Ensures a consistent fuel return, which helps to de-aerate the fuel and protect your injection system.