KGParts 20b Secondary Fuel Rail

£195.00 (inc VAT)

One of the most popular fuel rail options for the 20b engine.

1 in stock (can be backordered)

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SKU: KGP>20bSEC Categories: , Tags: , , , ,


Secondary Fuel Rail for use Mazda’s 20b COSMO engines using the OEM lower intake manifold.
Replaces secondary fuel rail only, Primary Rail old separately.
Designed to accept Bosch 1600cc (“American” / 14mm) injectors
Machined aluminum extrusion with machined mount brackets
Bolt-on application
All parts and hardware included.**

Rail is tapped at both ends to accept 3/8 NPT fittings. Optional Injector Spacers for sealing the top feed injectors in engine.

You may need need Tap In Injector Spacers for the Lower Intake Manifold (LIMS) depending on your specific Injectors. These are available separately, These are Sold separately.

**Banjo bolt adapter lets you attach the stock primary fuel rail.**
**Does not include the aluminum spacers. We sell those separately.**

This rail is for the three rotor 20b engine found in the Eunos COSMO, if your COSMO is equipped with the 13b-RE then this rail will not fit.



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