This Part Fits:

Fits 1995-1998 Nissan 240SX (Base, LE, SE).

The Radium Engineering IACV Spacer Kit (20-0162) is designed to solve clearance issues often encountered when installing aftermarket intake manifolds or larger fuel rails on the S14 chassis. By spacing the Idle Air Control Valve away from the manifold surface, this kit allows for easier plumbing and prevents interference with adjacent components while maintaining factory idle stability and performance.

• Precision-machined construction for reliable sealing and durability
• Provides essential clearance for high-performance intake and fueling setups
• Preserves factory Idle Air Control Valve functionality
• Includes necessary mounting hardware for a straightforward installation
• Manufacturer Part Number: 20-0162

Fits 1990-1997 Mazda Miata models (Base, LE, M Edition, SE, STO) equipped with ABS.

The Radium Engineering Master Cylinder Brace is a critical upgrade for drivers seeking a firmer, more responsive brake pedal. In the NA Mazda Miata, the master cylinder is mounted to a relatively thin firewall that flexes under heavy braking loads. This deflection leads to a spongy pedal feel and makes it difficult to modulate braking force precisely at the limit.

This bolt-in brace (MPN 20-0843) provides a rigid mechanical stop for the master cylinder, effectively bracing it against the shock tower. By eliminating firewall flex, it ensures that your foot's effort is translated directly into hydraulic pressure. The result is improved pedal stiffness and consistent braking performance on both the street and the track.

• Designed specifically for 1990-1997 Mazda Miata chassis equipped with ABS
• Reduces firewall deflection for improved braking modulation and feel
• Durable construction with high-quality hardware
• Direct bolt-in installation with no permanent modifications required
• Manufacturer Part Number: 20-0843

The Radium Engineering Wide Range Fuel Pressure Regulator (FPR) Spring is an essential component for fine-tuning fuel system pressure. Designed to provide a broader adjustment window than standard baseline springs, this high-tension spring allows for precise control of rail pressure in high-performance fuel systems.

This component is a direct internal replacement for the hardware found in specific Radium Engineering regulators. Whether you are calibrating for high-flow injectors or setting up a multi-pump surge tank system, this spring ensures stable and repeatable fuel pressure management under varying loads.

• Expands the fuel pressure adjustment range for custom tuning requirements
• Compatible with Radium Multi-Pump Regulator (MPR)
• Compatible with Radium Direct Mount Regulator (DMR)
• Compatible with Radium Fuel Surge Tank - Integrated Regulator (FST-R)
• Precision-wound for consistent spring rates and durability
• Manufacturer Part Number: 18-0046

Fits Honda B-series, D-series, F-series, and H-series engines.

The Radium Engineering Fuel Rail Plumbing Kit provides a streamlined solution for connecting a Radium fuel rail to the factory fuel system. This kit (20-1270-PK) includes all the necessary hoses and adapter fittings required to bridge the gap between the fuel rail and the OEM chassis lines in the engine bay. It eliminates the need for custom-fabricated lines and ensures a secure, leak-free connection when upgrading your Honda's fuel delivery system.

• Directly connects Radium fuel rails to factory fuel system lines
• Includes all necessary pre-assembled hoses and adapter fittings
• Compatible with Honda B, D, F, and H-Series engine configurations
• Maintains factory fuel system routing for a clean engine bay installation
• Manufacturer Part Number: 20-1270-PK

Fits 1992-2001 Mitsubishi Evolution I, II, III, IV, V, and VI.

This Radium Engineering fuel hanger plumbing kit is a comprehensive solution designed to connect a Radium fuel pump hanger to the engine bay. Engineered specifically for use with the Radium 4G63 fuel rail, this kit replaces restrictive factory fuel lines with high-flow plumbing to support increased fueling demands. The system includes a high-performance fuel pressure regulator and a stainless steel element fuel filter, ensuring consistent pressure and clean fuel delivery for both gasoline and ethanol-based fuels.

• Direct-fit plumbing for Radium fuel pump hangers in Evo 1-6 chassis
• Optimized for integration with Radium Engineering 4G63 top-feed fuel rails
• Includes high-flow stainless steel fuel filter compatible with E85
• Comes with fuel pressure regulator and all necessary AN fittings
• Supplied with pre-assembled hoses and mounting hardware for a streamlined installation
• Manufacturer Part Number: 20-1334-03

The Radium Engineering Remote Mount SVF (Swing Valve Filler) provides a modern, capless fueling solution designed specifically for Radium "silver cup" fuel filler receptacles. This component streamlines the refueling process by replacing traditional screw-on caps with a spring-loaded internal door, ensuring a secure seal with an integrated O-ring whenever the fuel nozzle is removed.

Modeled after high-end OEM capless systems, this filler cap is built for durability in performance environments. For added protection against track debris and environmental contaminants, the kit includes an optional secondary dust cap and a retaining tether to keep it secured to the vehicle.

• Manufacturer Part Number: 20-1548
• Design: Capless swing valve with spring-loaded door
• Sealing: Integrated O-ring for a vapor-tight closure
• Hardware Included: Optional dust cap and tether
• Compatibility: Screws into Radium silver cup fuel filler receptacles; NOT compatible with Radium Dry-Break fuel fillers

The Radium Engineering swivel banjo fitting (MPN 20-1000-1065) is a high-quality plumbing solution designed for tight clearances where standard fittings might cause interference. It features a male 10AN ORB (7/8-14) end that threads into any standard O-ring port, paired with a 6.5mm hose barb outlet that swivels 360 degrees to accommodate precise hose routing.

• Precision Engineering: Features a swivel design that allows for orientation after tightening, making it ideal for plumbing fuel, oil, or vacuum lines in confined spaces.
• Premium Materials: Constructed from a combination of stainless steel and aluminum for long-term durability and resistance to corrosion.
• Inlet: 10AN ORB (O-Ring Boss).
• Outlet: 6.5mm Hose Barb.
• Part Number: 20-1000-1065.

The Radium Engineering 20-1000-10375-PCV is a specialized 10AN ORB swivel banjo fitting featuring an integrated PCV valve. This compact solution is designed for high-performance crankcase ventilation systems where space is limited and precise hose routing is required. It serves as a direct replacement for standard fittings in custom catch can or breather setups.

Constructed from high-grade aluminum and stainless steel, this fitting is engineered for reliable operation and durability in oil-rich environments. The swivel banjo design allows for 360-degree rotation of the outlet, making it easier to connect to 3/8-inch SAE quick-disconnect hoses even in crowded engine bays.

• MPN: 20-1000-10375-PCV
• Inlet: 10AN ORB (7/8-14)
• Outlet: 3/8 inch SAE Male Quick-Disconnect
• Function: Integrated PCV (Positive Crankcase Ventilation) valve
• Material: CNC machined aluminum and stainless steel construction
• Design: Low-profile swivel banjo for flexible hose orientation

The Radium Engineering FPD-XR Inline Fuel Pulse Damper is engineered to manage fuel pressure oscillations and minimize the hydraulic noise generated by high-flow injectors. By smoothing out these pressure pulses, the FPD-XR helps ensure more accurate fuel delivery and prevents fluctuations that can affect engine tuning and performance.

Constructed with high-quality internal components, this damper features an inline design with 8AN ORB (O-ring Boss) inlet and outlet ports. It also includes an integrated 1/8 NPT port, making it straightforward to install a fuel pressure gauge or a pressure sensor directly into the fuel path. Note that fuel line adapter fittings are not included and must be sourced to match your specific plumbing requirements.

• Manufacturer Part Number: 20-0200
• Ports: Dual 8AN ORB (Inlet/Outlet)
• Integrated Port: 1/8" NPT for fuel pressure gauge or sensor
• Housing Material: CNC machined aluminum
• Compatibility: Compatible with most pump and race fuels
• Function: Stabilizes fuel pressure and reduces injector noise

This low-profile Radium Engineering swivel banjo fitting is designed for plumbing scenarios where space is at a premium. It installs directly into any 4AN ORB (O-Ring Boss) port, providing a 360-degree swiveling 5/16-inch SAE quick-connect male interface for streamlined hose routing.

Engineered for versatility and durability, this fitting features a hybrid construction of a stainless steel banjo bolt and an anodized aluminum banjo housing. This material choice ensures high strength and corrosion resistance, making it safe for use with all automotive fluids, including oil, coolant, and all fuel types such as E85 and methanol.

• Manufacturer Part Number: 20-1000-04313
• Inlet: 4AN ORB (9/16-18 threads with O-ring)
• Outlet: 5/16" SAE Quick Connect Male
• Low-profile banjo design for tight clearances
• Swivels 360 degrees for optimal positioning
• Compatible with all fuel, oil, and coolant types

The Radium Engineering Remote Mount SVF (Swing Valve Filler) brings the convenience and efficiency of a modern capless refueling system to custom fuel cell and remote tank installations. Modeled after high-end OEM capless fillers, this unit features an internal spring-loaded flap that opens easily for a fuel nozzle and seals automatically once removed.

• Precision Connection: Integrated 1.5-inch hose barb ensures a secure, leak-free fit with standard fuel filler hoses.
• Debris Protection: Includes an optional dust cap and durable tether to keep road grime, dust, and moisture away from the internal valve mechanism.
• Universal Application: Ideal for performance builds requiring a remote-mounted filler neck solution.
• MPN: 20-1003

Note: This component is NOT compatible with Radium Dry-Break fuel fillers.

Upgrade the fueling system on your Mazda 20B rotary engine with the Radium Engineering Primary Fuel Rail. This precision-engineered rail is designed specifically for the primary injector location, allowing for a seamless conversion from the original equipment to high-performance top-feed fuel injectors.

By utilizing the included injector seats, this fuel rail facilitates the use of common aftermarket universal top-feed injectors, providing the flexibility needed for high-horsepower builds. The rail is CNC machined for exact tolerances and features large internal bores with 8AN ORB ports at both ends to support high-volume fuel flow and provide versatile plumbing options.

• Direct fit for Mazda 20B rotary engines (Primary Injector Location)
• Converts side-feed or OEM configurations to top-feed fuel injectors
• Precision CNC machined construction for durability and fitment
• Integrated 8AN ORB ports for high-flow fuel delivery
• Includes specialized injector seats for installation
• Compatible with standard aftermarket universal injectors
• Manufacturer Part Number: 20-1120

The Radium Engineering Fuel Vent Charcoal Canister is designed to trap unwanted fuel vapors escaping from competition fuel cell vent lines. By installing this canister in-line with the vent hose, you can eliminate the strong fuel smells often associated with storing high-performance vehicles in enclosed garages or trailers. The internal activated carbon element is specifically engineered to neutralize odors without impeding essential air flow to the fuel cell.

Built for maximum installation flexibility, this canister can be mounted in any orientation to suit your plumbing layout. It features large 16AN ORB female ports and includes high-quality adapters to reduce the ports to a 10AN ORB female size, making it adaptable to a wide range of racing fuel systems.

• Manufacturer Part Number: 20-1828-00
• Primary Port Size: 16AN ORB (Female)
• Included Adapters: Two 16AN ORB to 10AN ORB (Female)
• Internal Media: Activated carbon
• Fitment: Universal for competition fuel cell vent lines
• Mounting: Can be used in any orientation

The Radium Engineering FPD-R (Fuel Pulse Damper-Radial) is an inline solution designed to attenuate fuel pressure oscillations caused by the rapid opening and closing of fuel injectors. By smoothing out these pulses, the FPD-R ensures more consistent fuel delivery and helps eliminate erratic pressure readings and lean spots in high-performance fuel systems.

• Manufacturer Part Number: 20-0199
• Ports: Dual 8AN ORB (inlet/outlet)
• Auxiliary Port: 1/8" NPT for fuel pressure gauge or sensor integration
• Configuration: Inline mounting

Note: Fuel line adapter fittings are not included and must be selected separately to match your specific plumbing requirements.

Upgrade your vehicle's fueling capacity with Radium Engineering GM LS7 High-Flow Fuel Rails. Specifically designed for the 7.0L LS7 engine, these rails fit 2006-2015 Chevrolet Corvette and Camaro models. These rails are engineered to support high-horsepower applications by providing a significantly larger internal bore than the factory units, reducing pressure drops and ensuring consistent fuel delivery across all injectors.

• Manufactured from 6061 aluminum for strength and durability
• Large internal bore to accommodate high-volume fuel flow
• Anodized finish for corrosion resistance and E85 compatibility
• Compatible with factory and aftermarket fuel injectors
• Includes all necessary mounting hardware for a direct bolt-on installation
• Manufacturer Part Number: 20-0361

Fitment Summary:
Fits 2006-2015 Chevrolet Corvette (Z06, 427, Z06 Carbon) and 2014-2015 Chevrolet Camaro Z/28 with the LS7 engine.

Detailed installation instructions are available at the manufacturer's website.

Ensure a leak-free seal in your high-performance fluid systems with this Radium Engineering 5-pack of -8AN ORB Viton O-rings. These O-rings are designed specifically for -8AN (3/4-16 thread) O-Ring Boss fittings commonly found on fuel rails, catch cans, and regulator ports. Replacing worn or pinched seals is critical during maintenance to prevent dangerous fuel or oil leaks.

Constructed from Viton (FKM), these seals offer superior chemical resistance and thermal stability compared to standard nitrile rubber. They are engineered to withstand exposure to gasoline, ethanol blends (E85), diesel, and synthetic engine oils without swelling or degrading over time.

• Quantity: 5-Pack
• Fitting Size: -8AN ORB (3/4-16)
• Material: High-temp Viton (FKM)
• Application: Fuel, Oil, and Coolant systems
• Manufacturer Part Number: 18-0043-08

This Radium Engineering swivel banjo adapter provides a compact plumbing solution for tight engine bays and custom fluid systems. Designed to thread directly into any 8AN ORB (O-Ring Boss) port, the banjo configuration allows for a low-profile 90-degree exit with full 360-degree swiveling capability for precise hose routing.

• Connection A: 8AN ORB (9/16-18 O-Ring Boss) male
• Connection B: 6.5mm hose barb
• Swivel design allows for easy orientation in confined spaces
• Precision machined for high-flow performance and leak-free operation
• Manufacturer Part Number: 20-1000-0865

Ideal for fuel, oil, or coolant systems where a standard straight or elbow fitting would encounter clearance issues, this adapter ensures a secure connection to 6.5mm (approx. 1/4 inch) ID hoses.

Designed for the Nissan R-chassis platform, the Radium Engineering HICAS Line Retainer Kit provides a secure mounting solution for the factory steel hydraulic lines. Over time, original plastic underbody clips become brittle or snap during maintenance, leading to unsecured lines that are prone to vibration and fatigue.

This kit is engineered specifically to match the diameter and spacing of the OEM HICAS lines on the underside of the vehicle, ensuring a precise fit that maintains proper routing and clearance. Whether you are performing a restoration or a subframe service, these retainers provide the durability needed for high-performance applications.

• Fits Nissan R32, R33, and R34 chassis models
• Designed specifically for original steel HICAS lines
• Prevents line movement and underbody vibration
• Replaces aged or broken factory plastic retainers
• Manufacturer Part Number: 20-0627

This 15-pack of Radium Engineering acorn nuts is engineered specifically for use with Radium electrical studs. Machined from high-grade aluminum and finished with a durable anodizing, these nuts provide a secure fastening solution for electrical terminals. The non-conductive properties of the assembly ensure safe installation by preventing unintended grounding paths or shorts.

• Thread Pitch: 10-32
• Material: Anodized Aluminum
• Construction: Non-conductive design
• Quantity: Pack of 15
• Manufacturer Part Number: 20-0506

The Radium Engineering Universal Hose Barb Adapter (14-0058) provides a professional, leak-free solution for tapping into a 1-1/4 inch I.D. hose. This adapter is engineered to facilitate the integration of temperature sensors, pressure gauges, or auxiliary plumbing lines into automotive systems, such as cooling circuits or breather setups, without requiring permanent modifications or custom welding.

• Precision machined for 1-1/4" (1.25 inch) Inside Diameter hoses
• Features one 1/4" NPT threaded port to accept various NPT-style sensors and fittings
• Durable aluminum construction with a green anodized finish for superior corrosion resistance
• High-profile barbs ensure a secure, high-pressure seal when used with standard hose clamps
• Manufacturer Part Number: 14-0058

The Radium Engineering remote mount vented female dry break receptacle is designed for external bodywork mounting, providing a secure and efficient refueling point for high-performance racing applications. This assembly features a 75-degree angled 1.5-inch diameter elbow connected via a 24AN interface, allowing for versatile plumbing routing in tight spaces.

For precise installation, the elbow can be clocked in any orientation before being secured with the B-nut. The integrated vented design ensures proper pressure equalization during high-volume refueling processes. This component is specifically engineered for exclusive use within Radium Engineering dry break systems to ensure leak-free performance and strict compatibility.

• Manufacturer Part Number: 20-1104-V
• Mounting Style: Remote exterior body mount
• Connection Type: 1.5" OD 75-degree elbow with 24AN interface
• Adjustability: 360-degree clockable elbow positioning
• Design: Vented female dry break receptacle
• Compatibility: Use only with Radium Engineering dry break components

Fits 1993-1995 Mazda RX-7 (Base, R1, R2, and Touring models).

The Radium Engineering Fluid Lock Catch Can Kit is an application-specific solution for the Mazda RX-7 FD3S, designed to manage oil vapor and moisture within the PCV breather system. By plumbing this single catch can into the PCV hose, you prevent oil blow-by from entering the intake manifold, which helps maintain fuel octane levels and reduces carbon buildup on the rotary engine's internal components.

This kit features Radium’s patent-pending Fluid Lock technology. Unlike traditional catch cans, the Fluid Lock mechanism uses a specialized internal float to prevent accumulated fluids from being drawn back into the engine during high-G cornering or if the reservoir reaches capacity. The system is a direct bolt-in installation, utilizing a vehicle-specific bracket that mounts to factory points in the FD3S engine bay.

• Patent-pending Fluid Lock internal safety mechanism
• CNC machined 6061-aluminum construction with an anodized finish
• Application-specific mounting bracket for the FD3S chassis
• Integrated dipstick for quick fluid level inspection
• Includes all necessary PCV-rated hoses and fittings
• Manufacturer Part Number: 20-0977-FL

The Radium Engineering FCST Adapter (MPN 20-1127) provides a critical solution for retrofitting older Radium Fuel Cell Surge Tanks. This adapter plate allows modern 3-bolt filler necks to be utilized on legacy FCST models that were originally manufactured with 6-bolt filler neck hole patterns.

By bridging the gap between hardware generations, this adapter ensures your fueling system remains compatible with current fill necks and accessories without the need for a full surge tank replacement. It provides a secure, leak-free interface designed to withstand the rigors of high-performance fuel systems.

• Direct fit for older Radium Fuel Cell Surge Tanks (FCST)
• Converts 6-bolt patterns to current 3-bolt fill neck standards
• Precision machined for a secure seal
• Manufacturer Part Number: 20-1127

Upgrade your Radium Engineering Spare Tire fuel cell with this high-strength, lightweight carbon fiber lid. Engineered specifically as a direct replacement for the standard lid, this component reduces weight while providing the distinct aesthetic of professional-grade composite construction.

This lid is manufactured using a 2x2 3k twill dry carbon fiber process to ensure maximum structural integrity and a precise fit. Installation is straightforward, as it is designed to reuse the hardware provided with the original fuel cell assembly.

• Manufacturer Part Number: 13-0411-01
• Material: 2x2 3k twill dry carbon fiber
• Construction: Dry carbon process for weight savings and strength
• Compatibility: Exclusively fits Radium Engineering Spare Tire fuel cells
• Installation: Reuses existing fuel cell fasteners

Fits 1986-1995 Ford Mustang (Base, GT, GTS, LX, SVO, and SVT Cobra) with 302 or 351 Windsor engines.

This Radium Engineering high-flow fuel rail set is designed to replace the restrictive factory units on Small Block Ford (SBF) Windsor platforms. These rails provide the increased volume and routing flexibility required for performance fuel systems, featuring large internal bores and versatile porting for custom plumbing.

• Engine Compatibility: Ford 302 and 351 Windsor
• Port Type: 8AN ORB (O-ring Boss) on all ends
• Configuration: Set of two (2) rails
• Manufacturer Part Number: 20-1302

Note: All fittings and plumbing adapters are sold separately to accommodate various fuel system layouts.

The Radium Engineering high-flow fuel rail is specifically engineered for Toyota 3S-GE and 3S-GTE Gen 3, Gen 4, and Gen 5 engines. CNC machined from aluminum and finished in a black anodized coating, this rail supports increased fuel demands for performance applications while maintaining compatibility with factory-style components.

Each kit includes multiple sets of mounting feet to ensure a proper fit across different engine variations and intake manifold configurations. The rail features 8AN ORB (3/4-16 O-ring) ports at both ends, allowing for various plumbing configurations with appropriate adapters. It is designed to work seamlessly with OEM injectors or aftermarket injectors sharing the same fitment specifications as the original equipment.

• CNC machined aluminum construction
• Black anodized finish for durability and corrosion resistance
• Dual 8AN ORB (3/4-16 O-ring) end ports
• Includes interchangeable mounting feet for Gen 3, 4, and 5 variations
• Compatible with OEM and OEM-fitment aftermarket injectors
• Manufacturer Part Number: 20-0949

Please note: 8AN ORB adapter fittings are sold separately and are required for installation.

This Radium Engineering PCV Catch Can Kit is engineered for 2005-2023 Toyota Tacoma models to protect the induction system from oil and contaminants. By plumbing into the PCV valve line, the system captures oil vapors and moisture that would otherwise accumulate on intake valves and inside the intake manifold, potentially causing carbon buildup and reduced efficiency.

Featuring Radium's Fluid Lock technology, this kit includes a specialized mechanism to prevent collected fluids from being pulled back into the engine. It is a complete, bolt-in solution designed for straightforward installation using factory mounting points, ensuring the engine receives only clean, filtered air.

• Vehicle Fitment: 2005-2023 Toyota Tacoma
• System Integration: Interfaces directly with the PCV valve line
• Fluid Lock: Prevents accidental ingestion of collected oil and contaminants
• Construction: High-quality components designed for the engine bay environment
• Installation: Easy bolt-in mounting
• Manufacturer Part Number: 20-0838-FL

Fits 2015-2017 Subaru WRX Base, Limited, and Premium.

The Radium Engineering Fuel Feed Line Kit is a direct replacement for the factory fuel feed tube that connects the firewall hard line to the engine. This kit addresses the limitations of the OEM hose and hard line assembly, providing a more reliable and durable solution for fuel delivery in the engine bay of your FA20-powered WRX.

• Direct replacement for the firewall-to-engine OEM fuel feed tube
• Maintains consistent fuel delivery to the engine
• High-quality fittings and hose construction for long-term durability
• Designed specifically for the 2015-2017 Subaru WRX chassis
• Manufacturer Part Number: 20-0266