



Radium Engineering PCV Fluid Lock Catch Can Kit for Honda Civic Type R FK8/FL5
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Description
Radium PCV Fluid Lock Catch Can Kit Honda Civic Type R FK8/FL5
Application: Honda Civic Type R FK8 (2017-2021) and FL5 (2023+), Acura Integra Type S DE5 (2024+) – LHD
Part Type: Fluid Lock PCV oil catch can kit
Part Number: 20-0424-FL
Radium catch cans separate oil and water condensation from crankcase gases before they reach the intake, preventing oil build-up in the intake, intercooler, throttle body and intake manifold. Cleaner inlet air raises effective octane and improves performance, lowers hydrocarbon emissions, and the closed system keeps oil vapour out of the cabin.
The 20-0424-FL PCV kit runs inline with the PCV valve and retains its factory function. Under boost the check valve closes and the hose sees no flow, but at idle, cruise and deceleration it sees metered vacuum that can draw vapour and oil sludge into the intake – especially right after a hard run. No inline check valve is needed as the can is pressure sealed. The kit mounts to the right-hand firewall with no modifications.
Key Features
- Fluid Lock: Patented design prevents overfilling and holds collected fluid until emptied
- Large Ports: 10AN ORB inlet/outlet, 4AN ORB drain
- 2-Step Baffling: Two-step oil separation
- Dipstick: O-ring sealed dipstick for easy inspection
- Direct Fitment: No drilling required
- Firewall Mounting: Mounts to the RH firewall, no modifications
What's Included
- Anodised oil catch can with integrated condenser and dipstick
- Civic Type R-specific anodised aluminium mounting bracket
- Anodised aluminium AN adapter fittings and hose ends
- PCV hose for custom applications
- Stainless steel mounting hardware
Optional Parts
- Radium CCV Fluid Lock Catch Can Kit, Honda Civic Type R (FK8 / FL5) (20-0825-FL) – Crankcase vent-side catch can kit
- Radium Dual Fluid Lock Catch Can Kit, Honda Civic Type R (FK8 / FL5) (20-0826-FL) – PCV and CCV kits together – recommended by Radium for maximum protection
- Radium Catch Can Petcock Drain Kit (20-0024) – Drain the can without removing the reservoir, where space allows
Important Notes
- Radium states this PCV kit is designed for LHD vehicles and lists the FL5 and DE5 as LHD only – fitment to RHD (Australian-delivered) cars is not confirmed by Radium; contact us before ordering
- Covers the PCV side only – the crankcase vent side is covered by 20-0825-FL, or buy both as 20-0826-FL
- There is no set emptying interval – check the dipstick from 3-4 weeks and adjust; PCV systems typically collect more than CCV systems
- Excessive collection can indicate an engine problem such as blow-by, an overfilled crankcase, poor breather placement or a PCV valve that does not close under load
- Installation instructions are available in the Instructions tab
Vehicle Fitment
- Honda Civic Type R FK8 (2017-2021)
- Honda Civic Type R FL5 (2023+) – LHD only
- Acura Integra Type S DE5 (2024+) – LHD only
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.

