Radium Engineering 16mm Primary Injector Seat for Mazda

COMPATIBILITY 20-0444

13B-RE Secondary

13B-REW Secondary

20B-REW Secondary

COMPATIBILITY 20-1044

13B-RE Primary

13B-REW Primary

20B-REW Primary

OVERVIEW
These are the same machined aluminum injector seats used in Radium Engineering Fuel Rails for Mazda/Eunos Cosmo and RX-7 rotary engines. The green injector seats are used in the UIM (primary location) and the black injector seats are used in the LIM (secondary location). Both are required when converting the OEM 16mm injector seat counterbore to 14mm, which is more common with the most popular injector lower o-rings. They simply press fit into the OEM injector bore. They were specifically designed to be compatible with or without the OEM fuel injector diffusers installed. They seal to the machined injector counterbore by the included FKM o-ring.

NOTES:

Tall Primary Injector Seats extend o-rings past the air assist holes in the plates.

Most aftermarket lower intake manifolds already come machined with 14mm secondary injector ports.

FEATURES

Compatible with or without OEM diffusers
FKM O-ring compatible with boost pressure and fuel
CNC machined 6061 aluminum
Type II anodized
Laser engraved logo

SOLD INDIVIDUALLY

13B-RE engine requires 4 total (2 primary + 2 secondary)
13B-REW engine requires 4 total (2 primary + 2 secondary)
20B-REW engine requires 6 total (3 primary + 3 secondary)