

Radium Engineering Catch Can Kit, PCV for Nissan S13, Fluid Lock
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Description
Radium Catch Can Kit, PCV, Nissan S13, Fluid Lock
Application: Nissan S13 240SX / Silvia / 180SX / 200SX (excluding CA18DET)
Part Type: PCV catch can kit
Part Number: 20-0725-FL
A catch can separates oil and water from crankcase gases before they reach the intake, preventing oil build-up in the intake, intercooler, throttle body and manifold. Cleaner intake air helps effective octane and performance, and the closed system keeps oil vapour out of the cabin.
The 20-0725-FL PCV kit runs inline between the PCV valve and the intake manifold and mounts to the threaded bosses on the RH strut tower, clear of the fuel filter. The PCV side sees flow mainly at idle, cruise and deceleration. Because the can is pressure sealed, no inline check valve is required.
Key Features
- Mounting: Threaded bosses on the RH strut tower, clear of the fuel filter
- No Check Valve Needed: Pressure sealed can
- Fluid Lock Design: Radium's patented Fluid Lock mechanism stops the reservoir overfilling and holds collected fluid until it is emptied, so contaminants can't spill back into the intake
- Large Ports: 10AN ORB inlet and outlet ports with a 4AN ORB drain port
- Efficient Separation: 2-step oil separation baffling
- Easy Checking: O-ring sealed dipstick shows how much fluid has been collected
- Capacity: 207ml (7 fl oz)
- Direct Fitment: No drilling required
What's Included
- Baffled Fluid Lock oil catch can
- Nissan mounting bracket
- AN adapter fittings and hose ends
- Stainless steel mounting hardware
- Radium PCV hose
Optional Parts
- Radium CCV Fluid Lock Catch Can Kit - Nissan Silvia/180SX S13 (20-0726-FL) – CCV-side kit designed to be used together with this kit
- Radium Fluid Lock Dual Catch Can Kit: Nissan S13 (20-0727-FL) – PCV + CCV kits combined
- Radium Catch Can Petcock Drain Kit (20-0024) – drain the can without removing the reservoir, where there is room underneath
Important Notes
- Not compatible with CA18DET-powered S13 Silvia / 180SX / 200SX
- The PCV and CCV kits (20-0725-FL / 20-0726-FL) are designed to be used together
- There is no fixed emptying interval – check the dipstick after 3–4 weeks of driving and repeat as needed (PCV cans generally collect more than CCV cans)
- Empty by unscrewing the lower reservoir, or fit the optional Petcock Drain Kit where there is room under the can
- Excessive oil collection can indicate an engine problem such as excessive blow-by, an overfilled sump, poor breather port placement/baffling or a PCV valve leaking under load
- Installation instructions are available in the Instructions tab
Vehicle Fitment
- Nissan S13 240SX – all models/trims, RHD and LHD
- Nissan S13 Silvia – all models/trims, RHD and LHD (excluding CA18DET)
- Nissan S13 180SX – all models/trims, RHD and LHD (excluding CA18DET)
- Nissan S13 200SX – all models/trims, RHD and LHD (excluding CA18DET)
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.

