Radium Engineering Crankcase Catch Can Kit Fluid Lock for Honda S2000 AP1/AP2 1999-2009

Radium Crankcase Catch Can Kit Fluid Lock - Honda S2000 AP1/AP2 99-09

Application: Honda S2000 (RHD 2000-2009, LHD 2006-2009)
Part Type: Crankcase vent (CCV) Fluid Lock catch can kit
Part Number: 20-0097-FL

Radium S2000 catch can kits separate oil and water condensation from crankcase gases before they reach the intake, preventing build-up in the intake, intercooler, throttle body and intake manifold. As a closed system they also keep oil vapour out of the cabin, and each kit includes everything needed for installation. Radium's Fluid Lock® design (introduced in 2022) uses a patented internal mechanism that stops the reservoir from overfilling and holds collected fluid until the can is emptied, so oil cannot spill back into the induction system.

The crankcase kit installs inline with the 1/2" valve cover breather port, and is a necessity on turbocharged or supercharged cars showing oil in the intercooler.

Key Features

• Fluid Lock®: Patented mechanism prevents overfilling and traps collected fluid until emptied
• Large Ports: 10AN ORB inlet and outlet, 4AN ORB drain port
• 2-Step Separation: Internal baffling separates oil and water condensation from crankcase gases
• O-Ring Sealed Dipstick: Check the oil level without removing the can
• Direct Fit: Vehicle-specific bracket – no drilling required

What's Included

• 1x Radium billet catch can with integrated condenser and dipstick
• 1x S2000-specific laser-cut powder-coated mounting bracket
• Anodised aluminium 8AN hose ends and adapter fittings
• 1/2" PCV rubber hose (enough for custom applications)
• Vacuum and heater hose to eliminate the OEM metal hard-tube loom
• Stainless steel mounting hardware

Optional Parts

• Radium PCV Catch Can Kit Fluid Lock - Honda S2000 AP1/AP2 99-09 (20-0098-FL) – matching PCV-side can for maximum protection
• Radium Catch Can Petcock Drain Kit (20-0024) – remote drain for easier servicing where space allows

Important Notes

• Fits all RHD S2000s (2000-2009) and 2006-2009 LHD models; 2000-2005 LHD models require the cruise control module to be removed
• There is no fixed emptying interval – check the dipstick after 3–4 weeks of driving and adjust from there; PCV cans typically collect more than crankcase (CCV) cans
• Empty by unscrewing the lower reservoir, or fit the optional Petcock Drain Kit where there is clearance
• Excessive oil collection can indicate engine issues such as excessive blow-by, an overfilled sump, poor breather placement/baffling or a PCV valve that does not close under load
• Installation instructions are available in the Instructions tab

Vehicle Fitment

• Honda S2000 RHD (2000-2009)
• Honda S2000 LHD (2006-2009)
• Honda S2000 LHD (2000-2005) – only with the cruise control module removed

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.