Radium Engineering Crankcase Catch Can Kit Fluid Lock
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Radium Engineering Crankcase Catch Can Kit Fluid Lock — Honda S2000 AP1/AP2 1999–2009
Radium Engineering produces CNC-machined billet aluminium catch can systems trusted by tuners and race teams running serious S2000 builds. The Radium 20-0097-FL Crankcase Catch Can Kit Fluid Lock is a direct bolt-on solution that protects your engine from oil-saturated blowby vapours recirculating through the intake — no cutting, drilling, or fabrication required. Designed specifically for the Honda S2000, this kit includes every bracket, fitting, and hose needed for a clean, complete installation.
This listing covers the Radium Engineering Crankcase Catch Can Kit Fluid Lock (SKU: 20-0097-FL), suited to the Honda S2000 AP1 (1999–2004) and Honda S2000 AP2 (2005–2009). This kit runs inline with the 1/2" valve cover breather port and operates as a closed-loop system — it does not vent to atmosphere, keeping it track and emissions legal. Related kits including the PCV Catch Can Kit (20-0098-FL) and Dual PCV/Crankcase Kit (20-0099-FL) are sold separately.
Important: This kit is designed for 2000–2009 RHD and 2006–2009 LHD Honda S2000 models. It is not compatible with 2000–2005 LHD variants unless the cruise control module is removed.
Key Features
- Billet aluminium catch can with integrated condenser and dipstick — capacity 207 mL (7 fl oz)
- Height (without fittings): 127 mm (5 in) — outside diameter: 62 mm (2.45 in)
- S2000-specific laser-cut, powder-coated mounting bracket for direct bolt-on fitment
- Anodised aluminium 8AN hose ends and adapter fittings included
- 1/2" PCV rubber hose with sufficient length for custom routing
- Vacuum and heater hose to replace the OEM metal hard tube loom
- Stainless steel mounting hardware throughout
- Closed-loop design — no vent to atmosphere; track and emissions legal
- Pressure-sealed construction safe for boosted applications
- Compatible with pump petrol, E85, and flex fuel
Vehicle compatibility, available part number variants, and fitment notes are provided in the tabs above. Please confirm your vehicle's year, build date, and market (LHD/RHD) before ordering.
Pairs Well With
- Radium Engineering PCV Catch Can Kit Fluid Lock - Honda S2000 (AP1/AP2)
- Radium Engineering Catch Can O-Ring Service Kit - Universal
- Radium Engineering Catch Can Petcock Drain Kit - Universal - 4AN ORB
- Radium Engineering Fuel Rail - Honda S2000 (AP1 / AP2)
- Radium Engineering Fuel Surge Tank Install Kit - Honda S2000 (AP1 / AP2)
Not sure if this kit suits your build? Contact our team at sales@chicaneaustralia.com.au for expert advice.
Vehicle Compatibility
| Make | Model | Chassis | Engine |
|---|---|---|---|
| Honda | S2000 | AP1 | F20C |
| Honda | S2000 | AP2 | F20C |
Product
- Brand
- Radium Engineering
- Part number(s)
- 20-0097-FL
Details
- Circuit
- Crankcase vent (inline with 1/2in valve cover breather)
- Capacity
- 207mL (7 fl oz)
- Height (without fittings)
- 127mm (5in)
- Outside diameter
- 62mm (2.45in)
- Hose ends / fittings
- 8AN anodised aluminium
- Technology
- Fluid Lock anti-overfill mechanism
- System type
- Closed loop, pressure sealed
- Compatibility
- 2000–2009 RHD; 2006–2009 LHD (2000–2005 LHD only with cruise control module removed)
Contents
- Radium Fluid Lock catch can with mounting bracket
- 8AN hose ends and adapter fittings
- 1/2in PCV hose
- Vacuum and heater hose
- Stainless steel mounting hardware

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