GReddy Fuel Rail Pressure Regulator Adapter(s)  * Optional AN08 O-ring Fuel Rail Fitting - 13512303-AN (new type Fuel Rail)

* 13512303-AN08  - * Optional larger GReddy AN08 O-ring Fitting (Gold M20xP1.5)
            for newer GReddy RB/2J Fuel  Rails

* 13900811 AN6- * Replacement GReddy AN06 O-ring Fitting (Grey M20xP1.5)
            for newer GReddy Fuel Delivery Kits 

* 13900812 AN8- * Optional larger GReddy AN08 O-ring Fitting (Grey M20xP1.5)
            for newer GReddy Fuel Delivery Kits 

* 13900813 Nis P/R- * Optional GReddy O-ring Nissan Fuel Pressure Regulator Adapter (Grey M20xP1.5)  
            for newer GReddy Fuel Delivery Kits 

* 13900814 Plug- * Optional GReddy Plug O-ring Fitting (Grey M20xP1.5)
            for newer GReddy Fuel Delivery Kits 

* 11900999 -  * Optional larger GReddy AN10 flat-washer (Black M20xP1.5)
            for older GReddy Fuel Rails 

13900802 - Fuel regulator union M16xP1.5 (for GReddy older fuel delivery tube)
           Fig. 1

This is an adapter for attaching a genuine fuel regulator or an external fuel regulator to the GReddy delivery tube.
Fuel delivery tube adapter
M16-Flexible regulator flange ● Machined aluminum, O-ring included
Adapter for attaching a Nissan type fuel regulator to the GReddy delivery tube.

13900801 - Fuel regulator union (replacement part for fuel delivery tube)  Fig.2

This is an adapter for attaching a genuine fuel regulator or an external fuel regulator to the GReddy delivery tube.
Fuel regulator adapter AN6
Regulator flange-AN6
- Machined aluminum, O-ring and mounting bolts included
Adapter for piping AN6 to Nissan type regulator flange
(Used for installing separate fuel regulator, etc.)

13900851 - Fuel regulator union (replacement part for fuel delivery tube). Fig. 3

This is an adapter for attaching a genuine fuel regulator or an external fuel regulator to the GReddy delivery tube.
Flexible regulator flange
● Machined aluminum, O-ring, mounting bolt, vacuum hose included
Flexible adapter to change the installation angle of Nissan type fuel regulator (required for installing GReddy surge tank PS13)