Radium 20-0162 Aluminum IACV Spacer Kit for SR20DET Nissan Silvia S14/S15

Vehicle Fitment

• 1993-1998 Nissan Silvia S14 (SR20DET)
• 1999-2002 Nissan Silvia S15 (SR20DET)

Fitment Notes

• Specific to the SR20DET engine; not applicable to KA24DE-powered US-spec Nissan 240SX unless the vehicle has been converted to an SR20DET
• Designed to gain clearance for top-feed fuel rail installations - intended for use alongside a top-feed fuel rail conversion
• Replaces the OEM 2-bolt IACV bypass hard line

Features

• CNC-machined aluminum construction for a precise, factory-quality fit
• Laser etched and anodized finish for durability and easy identification
• Gains clearance for top-feed fuel rail installations by relocating the OEM IACV bypass hard line
• Includes an anodized aluminum barb adapter fitting to reroute the charge/PCV hose externally to the manifold
• OEM-style spring action hose clamp included for a secure, factory-style seal
• Stainless steel M6x1mm mounting bolts resist corrosion
• Includes a dedicated Radium IACV gasket for a proper seal at the valve
• Simple bolt-on installation - no permanent modification to the factory IACV required
• Backed by Radium Engineering's 1-year limited warranty

Specifications

• Material: CNC-Machined Aluminum
• Finish: Laser Etched, Anodized
• Hardware: Stainless Steel M6x1mm Bolts
• Hose Included: PCV Hose, 1/2 in. I.D., 2 ft. Length
• Gasket Included: Yes (Radium 18-0014, Nissan)
• Engine Application: SR20DET

Included Components

• 1x Anodized Aluminum IACV Spacer, Laser Etched
• 1x Anodized Aluminum Barb Adapter Fitting
• 1x Radium 18-0014 IACV Gasket, Nissan
• 1x OEM-Style Spring Action Hose Clamp
• 1x PCV Hose, 1/2 in. ID, 2 ft. Length
• 3x Stainless Steel M6x1mm Bolts

Product Description

The Radium 20-0162 is an IACV spacer kit purpose-built for the SR20DET engine found in the Nissan Silvia S14 and S15 chassis. It replaces the factory 2-bolt IACV bypass hard line, opening up the clearance needed to run a top-feed fuel rail without interference - a common upgrade path for SR20DET builds that outgrow the factory side-feed fuel rail setup.

The spacer itself is CNC-machined from aluminum and finished with a laser-etched, anodized surface for a durable, factory-quality appearance. An anodized aluminum barb adapter fitting reroutes the charge/PCV hose externally to the intake manifold, and the kit includes an OEM-style spring action hose clamp, a dedicated Radium IACV gasket, and stainless steel M6x1mm bolts - everything needed to complete the installation without sourcing extra hardware.

Because this kit is specific to the SR20DET's IACV layout, it's intended for genuine SR20DET-powered Silvia S14/S15 chassis or SR20DET-swapped platforms using the same intake manifold, not the KA24DE engine found in North American-spec 240SX models. It's backed by Radium Engineering's 1-year limited warranty.