• 89-96 Lexus LS400
• 89-96 Toyota Celsior
• 89-96 Toyota Crown
• 89-97 Toyota Crown Majesta
• 89-97 Toyota HiAce HiMedic Ambulance
• 91-97 Lexus SC400
• 91-97 Toyota Soarer
• 92-97 Toyota Aristo
• 95-97 SARD MC8
• 95-97 SARD MC8-R

There are two type of fuel rails made by Radium: upgrade rails and top feed conversion rails. Upgrade rails only upgrade the rail and the OEM fuel injectors can be reused. If an upgrade to the injectors is desired, they must be equivalent to the OEM injector, meaning they must be the same height and the upper & lower O-rings must match the OEM diameters and styles. Top feed conversion rails are used to convert a vehicle that has side feed (or sometimes air-assist) injectors over to a top feed injector.

This fuel rail is an upgrade rail. OEM or OEM equivalent injectors must be used.

Radium does not make fuel injector recommendations.

• Consult your tuner for injector brand or flow rate recommendations.
• Consult the injector manufacturer for a part number that has the correct dimensions.

Manufactured with 0.7" large internal bores, the Radium Engineering fuel rails can support all necessary engine power requirements.

The fuel rail ports are tapped for 8AN ORB. Each fuel rail has three 8AN ORB (3/4"-16) ports. Appropriate fittings must be selected based on the specific application. Ample space around the fuel rail port(s) is necessary for larger accessories such as fuel pressure regulators, fuel pressure gauges, and fuel pulse dampers. To verify clearance, the dimensional drawings on the product pages can be used as a reference guide.

• 8AN ORB Adapter Fittings can be found HERE
• 8AN ORB Direct Mount Regulators can be found HERE
• 8AN ORB Fuel Pulse Dampers can be found HERE
• Fuel Pressure Gauge Adapters can be found HERE

• Anodized surface finish for wear and corrosion resistance
• Lighweight aluminum construction
• Inner bore diameter: 0.7 inch
• Reuses thermal insulating spacers
• No special tools required for installation