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Radium Secondary Fuel Rail - Mazda Cosmo JC (13B-RE)

Radium Secondary Fuel Rail - Mazda Cosmo JC (13B-RE)

SKU: SKU:  20-0446

Regular price $296.99
Regular price Sale price $296.99
1 In Stock
Taxes included.
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Radium Secondary Fuel Rail - Mazda Cosmo JC (13B-RE)

Application: Mazda / Eunos Cosmo JC 1990-1995 (13B-RE)
Part Type: Secondary fuel rail
Part Number: 20-0446


The Radium 13B-RE Secondary Fuel Rail is a high-flow replacement for the factory secondary rail on the Cosmo 13B-RE rotary. It is machined from aluminium, black anodised and compatible with popular fuel types including E85, with a large internal bore to support the engine's power requirements.

The rail has 11mm injector bores like the stock rail, so OEM injectors fit, and the fuel ports are tapped for 8AN ORB. An extra centre port can accept accessories such as the OEM fuel temperature sensor, a pressure transducer or a pulse damper. Included injector seat adapters allow tall aftermarket injectors to be used.


Key Features

  • Large Internal Bore: Supports the power requirements of modified 13B-RE engines
  • OEM Injector Compatible: 11mm injector bores like the stock rail
  • Aftermarket Injector Option: Injector seat adapters suit 60mm aftermarket injectors
  • 8AN ORB Ports: Fuel ports plus a centre accessory port
  • Fuel Compatibility: Compatible with popular fuels including E85
  • Finish: Black anodised aluminium

What's Included

  • Black anodised aluminium secondary fuel rail
  • Insulating spacers
  • Injector seats and injector seat adapters

Optional Parts


Important Notes

  • Without the included spacers and injector seats installed, only OEM Mazda top-feed injectors can be used
  • With the injector seat adapters, aftermarket injectors must be 60mm tall with an 11mm upper and 14mm lower O-ring (e.g. Injector Dynamics ID1050-XDS 1050.60.11.14 through ID2600-XDS 2600.60.11.14)
  • Fittings must be selected for your application – allow clearance around the ports for regulators, gauges and pulse dampers
  • Installation instructions are available in the Instructions tab

Vehicle Fitment

  • Mazda / Eunos Cosmo JC (1990-1995) – 13B-RE

Not sure if this suits your vehicle? Email sales@coore.com.au and our team will confirm fitment.

Specs & Features

  • Part Number: 20-0446
  • Material: Aluminium, black anodised
  • Injector Bores: 11mm
  • Ports: 8AN ORB, including centre accessory port
  • Aftermarket Injectors: 60mm tall, 11mm upper / 14mm lower O-ring
  • Fuel Compatibility: Popular fuels including E85