Radium Rotary Engine Injector Seat (Single) - Mazda RX-7 FD/Cosmo JC (13B/20B)
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These are the same machined aluminum injector seats used in Radium fuel rails for Mazda/Eunos Cosmo and RX-7 rotary engines. They are required when converting the OEM 16mm injector seat's counterbore to 14mm which is more common with popular injector lower O-rings. They simply "pop" into the OEM injectors bore. They were designed specifically to be compatible with or without the OEM fuel injector diffusers installed. They seal to the machined injector counterbore using the included Viton O-ring.
They can be used for the primary fuel injector iron ports (shown above).
They can also be used for OEM intake manifold secondary injector ports (shown above).
NOTE: most aftermarket lower intake manifolds are already machined with 14mm lower injector O-ring ports.
FEATURES:
- Compatible with or without OEM diffusers
- CNC Machined Billet 6061 Aluminum
- Type-II Black Anodizing
- Laser Etched Logo
- Boost and fuel compatible Viton O-ring
SOLD INDIVIDUALLY:
- 13B-RE requires 4 total (2 primary+2 secondary)
- 13B-REW requires 4 total (2 primary+2 secondary)
- 20B-REW requires 6 total (3 primary+3 secondary)
What clients say
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Really fast and high quality customer support, my order got to me faster than the quoted time too. No complaints
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The team took a mostly broken car after some work done elsewhere, and have systematically made it reliable and fast for a fair price. The staff are invested in the work they do which also makes a big difference.
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Jeff was extremely helpful in assisting me with my exhaust. Always kept me updated and answered any queries in a timely manner. Will definitely be coming back for my future mods
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Justin and his crew is amazing! Always ready to help and service with a smile. Trusty, friendly and reliable! Had my car sent in for repair twice and it’s fixed on time, at a reasonable price and with no issues. Highly recommended!
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Easy to deal with and part was ordered quickly
