Radium Venturi Jet Pump Kit The Radium Engineering Venturi Jet Pump is an effective device for drawing fuel from one side of a saddle-style fuel tank to the other. Fuel flowing through the venturi creates vacuum at the perpendicular port, transferring fuel across the tank without the need for an additional electric pump. OEM jet pumps are commonly found in RWD and AWD vehicles with saddle-style fuel tanks and are designed for factory fuel pump flow rates. When a higher-flowing aftermarket pump is installed, the OEM jet pump becomes a major restriction in the return line — causing elevated fuel pressure. While drilling out the OEM jet pump can relieve pressure, it compromises the jet pump’s transfer function. The Radium Venturi Jet Pump is engineered specifically for high-flow aftermarket pumps and includes three interchangeable venturi orifices, precisely calculated and vacuum pressure tested across multiple pump combinations. The machined aluminium housing is anodized and laser-engraved. All three hose barb connections are compatible with 5/16" or 3/8" ID hose. The crossover siphon port uses 6AN ORB (9/16"-18 O-ring) female threads for easy adaptation to common AN hose fittings. Suits: Universal — vehicles with saddle-style fuel tanks running high-flow aftermarket fuel pumps (RWD / AWD) Kit Includes: 1x Machined anodized aluminium venturi jet pump housing (laser-engraved) 3x Interchangeable venturi orifices (vacuum pressure tested) Specifications: Hose barb connections: 3x — compatible with 5/16" or 3/8" ID hose Crossover siphon port: 6AN ORB female (9/16"-18 O-ring thread) Housing: Machined aluminium, anodized and laser-engraved Orifices: 3 interchangeable sizes included Available Part Numbers: 20-0180 — Venturi Jet Pump Kit (3 orifices included) Why Radium Engineering? ✅ Manufactured in the USA to motorsport-grade tolerances ✅ CNC-machined anodized aluminium with laser-engraved finish for precision and durability ✅ Trusted by tuners and race teams running high-power saddle-tank builds worldwide ✅ 3 interchangeable orifices — vacuum pressure tested for compatibility with a wide range of high-flow pumps ✅ Compatible with E85, ethanol, methanol, pump petrol, and flex fuel sensor integration
