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Air and Fuel Fuel Injection Systems and Components - Electronic

Radium Engineering

Radium Engineering Mazda 20B-REW Primary Top Feed Conversion Fuel Rail

$189.95 $180.45 Save $9.50

SKU: R005 20-0464

Out of Stock
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
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Easy — 1–2 hours

Overview

The Radium Engineering fuel rail is a top-feed conversion for the Mazda 20B-REW rotary engine. Constructed from anodized black aluminum, it is compatible with all popular fuel types, including E85. The rail features a large internal bore to support high engine power requirements and includes three 8AN ORB ports for additional fuel system accessories. Insulating phenolic spacers and stainless steel hardware are provided to minimize heat transfer to the fuel, and the 14mm lower injector seats are designed for use with or without OEM diffusers and feature Viton O-rings for boosted applications.
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Part #: 20-0464

The Radium Engineering high flow primary fuel rail is for the 20B-REW rotary engine originally found in the 1990-1995 Mazda/Eunos Cosmo. The aluminum fuel rail is anodized black for compatibility with all popular fuel types including E85. Manufactured with a large internal bore, the fuel rail can support all necessary engine power requirements. Converts to top feed fuel injectors (not included).

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

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Specifications

BrandRadium Engineering
Part NumberR005 20-0464

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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