Please note these are a clearance item for a special discounted price, once these are gone we cannot source them again for this price.

This fuel rail is for the Nissan RB25DET (non NEO) engine ONLY. This is commonly found in the R33 Skyline among others. For the RB25DET NEO fuel rail, go HERE .

Manufactured with a large 0.69" internal bore, the fuel rail can support all any engine power requirements. The Radium fuel rail converts the OEM side feed fuel injector setup to top feed injectors, allowing the use of a wide variety of aftermarket fuel injectors available on the market.

This kit is compatible with E85.

The fuel rail has four 8AN ORB ports that can be used for fuel inlet, outlet or for plumbing option accessories. All unused ports must be plugged.

The rail is extruded and CNC machined from solid 6063 aluminum and black anodized for a high quality surface finish.

The green injector seats press into the intake manifold and provide a sealed base for the top feed fuel inejctors to sit on. These injector seats require fuel injectors with a 14mm lower O-ring (common size).

Included
-Black Anodized Aluminum Fuel Rail
-Insulating Spacers, Short (x3)
-Insulating Spacers, Tall (x3)
-Insulating Washers (x3)
-Radium 20-0161-06, 25mm Injector Seats
-Stainless Steel Mounting Bolts, Short (x3)
-Stainless Steel Mounting Bolts, Tall (x3)

Fuel Injector Compatibility

The kit includes 2 sets of spacers to suit multiple height injectors. The thermally insulating spacers offer excellent resistance to heat transfer.

Use the tall spacers and longer mounting bolts to accomodate 48mm (3/4 length) size injectors, and the shorts spacers to suit 34mm (1/2 length) size injectors.

Nissan RB25 Parts

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Clearance - 15% Off - Radium Fuel Rail, Top Feed Conversion, Nissan RB25DET