Radium Rotary Engine Injector Seat (Single) - Mazda RX-7 FD/Cosmo JC (13B/20B) Universal FPD-R: ✔ Yes — base

FPD-R: ✔ Yes — base pressure within 40-70psi range

Tether assembly included to prevent cap loss during refuelling

This precision-machined adapter fitting converts an 8AN ORB (O-Ring Boss) female port to a 6AN ORB male connection

Compatible with Radium fuel cell systems

Radium Rotary Engine Injector Seat (Single) - Mazda RX-7 FD/Cosmo JC (13B/20B) Universal FPD-R: ✔ Yes — baseRadium Rotary Engine Injector Seat (Single) Mazda RX 7 FD3S Cosmo JC (13B 20B) Suits: Mazda RX 7 FD3S 13B REW Mazda Eunos Cosmo JC 13B RE Mazda Eunos Cosmo JC 20B REW The Radium Engineering Rotary Engine Injector Seat is the same machined aluminium seat used in Radium fuel rails for Mazda and Eunos Cosmo and RX 7 rotary engines. It converts the OEM 16mm injector seat counterbore to the more common 14mm lower O ring specification used by popular