




Radium Engineering Fuel Rail for Honda K Series
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Description
Radium Fuel Rail - Honda K Series
Application: Honda K-series with OEM (or OEM-compatible) intake manifolds – excludes K20C1
Part Type: Upgrade fuel rail
Part Number: 20-0230-02
Manufactured with a large 0.69in (17.5mm) internal bore, this Radium fuel rail can support all necessary engine power requirements for Honda K-series engines. It is CNC machined from extruded 6063 aluminium, media blasted, black anodised and laser etched.
Like the OEM fuel rails, the injector bores are 14mm ID so factory injectors can be used, and the rail has mounting features for the OEM injector clips.
Key Features
- Large Bore: 0.69in (17.5mm) internal bore
- OEM Injector Bores: 14mm ID – factory injectors permitted
- OEM Injector Clips: Mounting features for the factory clips
- 8AN ORB Ports: Rail ports tapped 8AN ORB
- Finish: Media blasted, black anodised, laser etched
What's Included
- 1x Black anodised, laser-etched aluminium fuel rail
- Stainless steel mounting hardware
- Thermal insulating washers
Optional Parts
- Radium Fuel Rail Plumbing Kit - Honda K-Series (20-0230-PK) – only needed if reusing the stock feed line
Important Notes
- Not compatible with the direct-injected K20C1
- Aftermarket intake manifolds (e.g. Skunk2) – confirm with the manifold manufacturer; if it accepts the OEM fuel rail, the Radium rail should also fit
- This is an upgrade rail, not a top feed conversion – OEM or OEM-equivalent injectors must be used (matching OEM injector height and upper/lower O-ring diameters and styles)
- Radium does not make injector recommendations – consult your tuner for brand and flow rate, and the injector manufacturer for a dimensionally correct part number
- Fittings are not included – select fittings to suit your application and allow space around the ports for regulators, gauges and pulse dampers
- Installation instructions are available in the Instructions tab
Vehicle Fitment
- Honda K-series engines with OEM intake manifolds (e.g. RBC, RBB, RRC, PRB)
- Aftermarket K-series manifolds that accept the OEM fuel rail
- Excludes direct-injected K20C1
If you're unsure whether this will fit your vehicle, contact our team of experts via email at hello@iilumolab.com and send through a few photos of the car for us to verify fitment.
Installation
We always recommend professional fitment for guaranteed satisfaction. If you're wanting a hassle-free installation, feel free to contact our friendly team as we offer installation services in-store at our Melbourne workshop. For more details, contact us here.
Note
Upon receiving the item, please ensure that the part is indeed the correct item you have ordered. This can be achieved by checking labels on the packaging. Please also ensure a proper test fit of the item is conducted prior to paint and/or installation. Returns/Warranty claims will be voided if the item has been tampered with, or is no longer in resalable/new condition.

