Radium 20-0957 Top Feed Fuel Rail for 89-98 Nissan 240SX KA24DE

Vehicle Fitment

• 1989-1994 Nissan 240SX (S13) 2.4L KA24DE
• 1995-1998 Nissan 240SX (S14) 2.4L KA24DE
• 1997-2000 Nissan R'nessa 2.4L KA24DE (Japan)
• 1998-2001 Nissan Presage U30 2.4L KA24DE (Japan)
• 1999-2001 Nissan Bassara U30 2.4L KA24DE (Japan)
• 1993-1997 Nissan Bluebird U13 2.4L KA24DE (Japan)

Features

• Top-feed fuel rail converting OEM side-feed to top-feed configuration
• Compatible with high-flow 14 mm O-ring fuel injectors (not included)
• CNC-machined from solid 6061 aluminum for strength and consistency
• Black anodized finish resists corrosion and compatible with E85 fuel
• Large 0.69" internal bore supports performance fuel demands
• Multiple tapped ports for 8AN ORB and 1/8" NPT fittings
• Includes thermal insulating spacers and washers for injector sealing
• Direct bolt-on design for Nissan KA24DE engines
• Improves fuel delivery and stability for tuned engines
• Ideal upgrade for street, track, or tuned applications

Specifications

• Part Number: 20-0957
• Application: Top-feed fuel rail conversion for Nissan KA24DE
• Material: CNC 6061 aluminum (black anodized)
• Internal Bore: 0.69" (≈17.5 mm)
• Ports: Three 8AN ORB + one 1/8" NPT
• Fuel Compatibility: Gasoline, E85
• Injector Compatibility: 14 mm O-rings top & bottom
• Mounting: OEM fuel injector locations on KA24DE manifold

Included Components

• 1x Black anodized aluminum fuel rail
• 2x Thermal insulating spacers
• 2x Thermal insulating washers
• 4x Black anodized aluminum injector seats
• 2x Stainless steel mounting bolts

Product Description

The Radium Engineering 20-0957 Top Feed Fuel Rail is a direct-fit performance upgrade designed for Nissan engines equipped with the KA24DE 2.4L twin-cam engine. This billet aluminum fuel rail converts the factory side-feed injector setup to a top-feed configuration, allowing the use of high-flow injectors with 14 mm O-rings - a common requirement for high-power and tuned applications. The large 0.69" internal bore maintains strong fuel flow and helps support elevated fuel demands seen in turbocharged, nitrous, or high-output naturally aspirated builds.

Constructed from durable black anodized 6061 aluminum and compatible with gasoline and E85 fuels, the 20-0957 fuel rail includes thermal spacers and injector seats for proper sealing and installation. It bolts directly to the OEM intake manifold on supported Nissan models, including 240SX S13/S14 and several JDM variants like R'nessa and Bluebird, making it ideal for street performance or motorsport fuel system upgrades. Note that high-flow injectors are not included and must be selected separately based on tuning goals.