Universal fit
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This part may still fit. Check the details below or contact us before ordering. Ask about fitment
Fitment not confirmed
This part may still fit. Check the details below or contact us before ordering. Ask about fitment
Vehicle fitment
This part is listed to fit the following vehicles.
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Description
Radium IACV Spacer Kit — Nissan S14 / S15 Silvia (SR20DET)
This Idle Air Control Valve (IACV) Spacer Kit is designed for the SR20DET engine in the Nissan Silvia S14 and S15. The OEM 2-bolt IACV bypass hard line is replaced by this anodized aluminium spacer to gain the necessary clearance for top-feed fuel rail installation. An anodized aluminium barb adapter and rubber hose are included to reroute the charge pipe hose externally around the manifold.
Suits:
- Nissan Silvia S14 — SR20DET
- Nissan Silvia S15 — SR20DET
Kit Includes:
- 1x Anodized aluminium IACV spacer, laser-etched
- 1x Anodized aluminium barb adapter fitting
- 1x Radium 18-0014 IACV gasket (Nissan)
- 1x OEM-style spring action hose clamp
- 1x Rubber hose, 1/2" ID, 2 ft length
- 3x Stainless steel M6x1mm bolts
Specifications:
- Application: Replaces OEM 2-bolt IACV bypass hard line
- Purpose: Clears top-feed fuel rail installation on SR20DET
- Material: Anodized aluminium (spacer and barb adapter)
- Finish: Laser-etched
- Hardware: Stainless steel M6x1mm bolts
Available Part Numbers:
- 20-0162 — IACV Spacer Kit, Nissan S14 / S15 SR20DET
Why Radium Engineering?
- ✅ Manufactured in the USA to motorsport-grade tolerances
- ✅ CNC-machined anodized aluminium spacer with laser-etched finish for precision fit and durability
- ✅ Trusted by tuners and race teams running high-power SR20DET builds worldwide
- ✅ Bolt-on fitment — replaces OEM IACV hard line to clear top-feed fuel rails without cutting or fabrication
- ✅ Compatible with E85, ethanol, methanol, pump petrol, and flex fuel sensor integration
Specifications
- Part Number
- 20-0162
- Brand
- Radium Engineering
Shipping
Orders are processed within 1-2 business days (Monday to Friday), and orders placed before 12pm AEST are usually dispatched the same day. Once dispatched, standard shipping takes 3-7 business days and express 1-3, with tracking emailed as your order leaves.
If part of your order is out of stock, we'll contact you with the option to split the shipment or hold it until everything is ready. Read the full shipping policy.
Returns
You have 14 days from delivery to request a return on unused parts in their original packaging. Refunds incur a 15% restocking fee (20% for special orders), or choose store credit and the full purchase value is applied to your account.
Parts that have been test fitted, installed, or used can't be returned, and special-order or overseas-ordered items are assessed case by case. Faulty or incorrectly supplied items are always covered at no cost to you. Read the full returns policy.