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Radium Engineering Fuel Rail, Top Feed Conversion, Mazda 13B-REW Secondary

SKU 20-0447
Original price $349.99 - Original price $349.99
Original price
$349.99
$349.99 - $349.99
Current price $349.99
Fast & Free Shipping On orders over $150 (excl some bulky items)
Fitment Guarantee When using our parts finder
Local Support Australian based support 24/7

Radium Fuel Rail, Top Feed Conversion, Mazda 13B-REW Secondary

Application: Mazda RX-7 FD3S 13B-REW (1992-2002) - secondary injectors
Part Type: Top feed conversion secondary fuel rail
Part Number: 20-0447


The Radium top feed conversion secondary fuel rail for the Mazda 13B-REW is machined from billet aluminium and anodised black, and suits all common fuel types including E85. It features a large internal bore and three 8AN ORB ports, plus an extra centre port for accessories such as the OEM fuel temperature sensor, a pressure transducer or a Radium fuel pulse damper.

The kit includes billet aluminium injector seats, stainless steel mount extensions and thermal spacers, and it also fits the Xcessive Manufacturing 4-port intake manifold using the included 11mm insulating spacers.


Key Features

  • Three 8AN ORB Ports: Plus an extra centre port for a fuel temperature sensor, pressure transducer or pulse damper
  • Large Internal Bore: High-flow secondary fuel delivery
  • Billet Aluminium: Anodised black
  • Injector Seats Included: Billet aluminium seats for top feed injectors
  • Thermal Spacers: Insulate the rail; 11mm spacers suit the Xcessive Manufacturing 4-port intake
  • Fuel Compatibility: All common fuel types including E85

What's Included

  • Anodised billet aluminium fuel rail
  • Stainless steel mount extensions
  • Anodised billet aluminium injector seats
  • 2AN ORB plugs
  • Thermal spacers
  • Mounting hardware

Optional Parts

  • Radium Rotary Engine Injector Seat (Single) - Mazda RX-7 FD/Cosmo JC (13B/20B) (20-0444) - two extra seats are required for 4-port intake manifolds
  • Radium 14-0421 8AN ORB to M12x1.5mm Female Fitting (14-0421) - adapter for the OEM fuel temperature sensor

Important Notes

  • Fuel injectors are not included - universal injectors must be 60mm tall with 14mm O-rings, e.g. Injector Dynamics ID1050-XDS (1050.60.14.14), ID1300-XDS (1300.60.14.14), ID1700-XDS (1700.60.14.14) or ID2600-XDS (2600.60.14.14)
  • For 4-port intake manifolds, two additional 20-0444 injector seats must be purchased
  • Fits the Xcessive Manufacturing 4-port intake manifold using the included 11mm insulating spacers
  • Choose fittings to suit your application and allow ample clearance around the rail ports for regulators, gauges and dampers
  • Installation instructions are available in the Instructions tab

Vehicle Fitment

  • Mazda RX-7 FD3S (1992-2002) - 13B-REW, secondary injectors

For application support, send your vehicle details to TJ Auto Parts through the Parts Finder.

Supplier-listed applications:
- Mazda RX-7 FD3S (1992-2002) - 13B-REW, secondary injectors

Note: Compatibility information is provided as a general guide only. Some vehicles may have multiple part variations for the same model or engine. To ensure this product is the correct fit and to be eligible for our Fitment Guarantee, please contact our team before purchasing.

Can’t find the part you’re looking for?
If you can’t find the part you need, please fill out our Fitment Finder or visit our Contact Us page. One of our expert team members will respond promptly to assist with your enquiry.

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Payment is completed during checkout. We accept all major payment methods via Shopify Payments including credit/debit cards, Apple Pay, Google Pay, and more. Direct bank transfer is also available please contact us at contact@tjautoparts.com.au for bank details and instructions.

How long will it take to process my order?
We aim to process and dispatch all orders within 1–2 business days. If there are any delays, we will notify you promptly via email.

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Where do the products come from?
All products are sourced directly from the manufacturer or authorised suppliers to ensure authenticity. Every item is backed by the manufacturer’s warranty.

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Yes, we offer trade accounts and pricing for qualified customers. To find out more or apply, simply email us at contact@tjautoparts.com.au and our team will assist you.

To see more FAQs visit our FAQs page or get in touch today.

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We offer free standard shipping on all orders over $150 (excluding bulky items). For orders under $150. Standard shipping starts at $9.95. Express shipping starts at $14.95. Shipping costs can be calculated in the cart or at checkout. Orders containing bulky items such as batteries, brake discs, liquids, and lift kits may incur additional shipping charges, particularly to remote or regional areas.

Dispatch & Handling
We aim to process and dispatch all orders within 1-2 business days. In the event of any delays, our customer service team will notify you. Tracking numbers are sent via email once your order has been dispatched and can also be accessed from your account.

For enquires on same day delivery or pickup, please contact our team before ordering to check availability. Custom or order in only items may have longer lead times. For more details on shipping, see our Delivery information page.

Returns and Refunds
If you change your mind or need to cancel an order, simply contact us at contact@tjautoparts.com.au within 30 days of delivery. Items should be unused and in their original packaging. A small restocking/admin fee of 5–20% may apply to help cover processing costs. This fee is only applicable at the discretion of our staff and may not apply to all orders. Return shipping is covered by you unless we sent the wrong or faulty item, in which case we’ll take care of it. Once we receive your return, refunds are processed quickly, usually within 48 hours, with up to 5 business days for your bank to complete the transfer.

We’re here to help make returns easy and hassle free! Contact us with any questions.

Warranty
All products come with the manufacturer’s warranty. If you experience any issues, please contact us at contact@tjautoparts.com.au. For full details on warranty coverage and claims, please visit our Returns page.

Fast & Free Shipping On orders over $150 (excl some bulky items)
Fitment Guarantee When using our parts finder
Local Support Australian based support 24/7