COMPATIBILITY
97-00 Lexus GS400
00-07 Lexus GS430
05-09 Lexus GX470
00-06 Lexus LS430
06-07 Lexus LX470
01-10 Lexus SC430
05-09 Toyota 4Runner
06-11 Toyota Land Cruiser
05-09 Toyota Sequoia
05-09 Toyota Tundra

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

PORTS AND FITTINGS
The fuel rail ports are tapped for 8AN ORB. 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.

FUEL INJECTOR COMPATIBILITY
The machined injector ports are compatible with 11mm upper injector O-rings. The fuel rails are compatible with OEM fuel injectors (or equivalent). 

OEM TOYOTA INJECTORS
The Radium Engineering fuel rail features 11mm injector bores making it compatible with ALL factory Toyota UZ fuel injectors. No modifications are needed. 

AFTERMARKET INJECTORS ON 2UZ-FE ENGINES (WITHOUT AIR-ASSIST)
For engines that do NOT use Toyota air assist equipment, use your preferred injector manufacturer's suggestion for OEM equivalent fuel injectors. DO NOT USE THE INJECTORS LISTED BELOW WHICH ARE FOR AIR-ASSIST ENGINES ONLY.

AFTERMARKET INJECTORS ON 3UZ-FE AND 1UZ-GE VVT-I ENGINES WITH AIR-ASSIST
These engines use Toyota air-assist emissions equipment. These engines use a unique OEM fuel injector that is not replicated in the aftermarket. Air-assist intake manifolds require the provided injector seats (shown below) in order to use universal aftermarket fuel injectors.

When the provided Radium injector seats are installed into these air-assist intake manifolds, an aftermarket injector that is 60mm long with 11mm upper O-ring and 14mm lower O-ring must be used. The following universal injectors have been verified to be compatible, however there are others on the market that will work that are not listed here.

Injector Dynamics ID1050-XDS-60-11-14
Injector Dynamics ID1300-XDS-60-11-14
Injector Dynamics ID1700-XDS-60-11-14
Injector Dynamics ID2600-XDS-60-11-14

FUEL RAIL PORTS
Each fuel rail has three 8AN ORB (3/4"-16) ports or 6 total.

Adapter fittings and fuel hose will need to be purchased separately.

FEATURES
-Anodized surface finish for wear and corrosion resistance
-Air-assist seats compatible with OEM injectors
-Lighweight aluminum construction
-Inner bore diameter: 0.7 inch
-Reuses thermal insulating spacers
-No special tools required for installation