{"product_id":"radium-rotary-engine-injector-seat-single-mazda-rx-7-fd-cosmo-jc-13b-20b","title":"Radium Rotary Engine Injector Seat (Single) - Mazda RX-7 FD\/Cosmo JC (13B\/20B)","description":"\u003ch2\u003eRadium Rotary Engine Injector Seat (Single) - Mazda RX-7 FD3S \/ Cosmo JC (13B \/ 20B)\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eSuits:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMazda RX-7 FD3S — 13B-REW\u003c\/li\u003e\n  \u003cli\u003eMazda \/ Eunos Cosmo JC — 13B-RE\u003c\/li\u003e\n  \u003cli\u003eMazda \/ Eunos Cosmo JC — 20B-REW\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe 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 aftermarket injectors. The seat simply presses into the OEM injector bore and is designed to be compatible with or without the OEM fuel injector diffusers installed. It seals to the machined injector counterbore using the included Viton O-ring.\u003c\/p\u003e\n\n\u003cp\u003eSuitable for both primary fuel injector iron ports and OEM intake manifold secondary injector ports.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Most aftermarket lower intake manifolds are already machined with 14mm lower injector O-ring ports — check before ordering.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSold individually.\u003c\/strong\u003e Quantity required per engine:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e13B-RE — 4 total (2 primary + 2 secondary)\u003c\/li\u003e\n  \u003cli\u003e13B-REW — 4 total (2 primary + 2 secondary)\u003c\/li\u003e\n  \u003cli\u003e20B-REW — 6 total (3 primary + 3 secondary)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin: 20px 0; border: 0; border-top: 1px solid #000;\"\u003e\n\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eConverts OEM 16mm injector seat to 14mm lower O-ring specification\u003c\/li\u003e\n  \u003cli\u003eCompatible with or without OEM fuel injector diffusers\u003c\/li\u003e\n  \u003cli\u003eCNC-machined billet 6061 aluminium\u003c\/li\u003e\n  \u003cli\u003eType-II black anodised finish\u003c\/li\u003e\n  \u003cli\u003eLaser etched logo\u003c\/li\u003e\n  \u003cli\u003eViton O-ring included — boost and fuel compatible\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e20-0444 — Radium Rotary Engine Injector Seat, Single (Mazda RX-7 FD3S \/ Cosmo JC, 13B \/ 20B)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr style=\"margin: 20px 0; border: 0; border-top: 1px solid #000;\"\u003e\n\n\u003ch3\u003eWhy Radium Engineering?\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e✅ Manufactured in the USA to motorsport-grade tolerances\u003c\/li\u003e\n  \u003cli\u003e✅ CNC-machined billet aluminium components built for performance and longevity\u003c\/li\u003e\n  \u003cli\u003e✅ Trusted by high-power build tuners and race teams worldwide\u003c\/li\u003e\n  \u003cli\u003e✅ Press-fit installation — no cutting, drilling, or permanent modifications required\u003c\/li\u003e\n  \u003cli\u003e✅ Viton O-ring sealing — compatible with E85, methanol, and all exotic fuel types\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Radium Engineering","offers":[{"title":"Default Title","offer_id":48591101001960,"sku":"20-0444","price":26.99,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0354\/8135\/4376\/files\/20-0444_1c977cbc-25b8-4034-aef4-b64e2cef0311.jpg?v=1779943125","url":"https:\/\/www.platinumracingproducts.com\/en-kw\/products\/radium-rotary-engine-injector-seat-single-mazda-rx-7-fd-cosmo-jc-13b-20b","provider":"Platinum Racing Products","version":"1.0","type":"link"}