Radium Engineering Fluid Lock Catch Can Kit for BMW 335i/135i N54

Radium Fluid Lock Catch Can Kit - BMW 335i/135i (N54)

Application: BMW 135i, 335i and 535i (N54)
Part Type: Fluid Lock oil catch can kit
Part Number: 20-0373-FL

The Radium Fluid Lock Catch Can Kit for the BMW N54 separates 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, and the closed system keeps oil vapour out of the cabin.

The kit mounts to the OEM power steering reservoir bracket with no cutting or drilling, and N54-specific billet 10AN adapters connect to the OEM vent tubing without modification. Radium's patented Fluid Lock design prevents the can from overfilling and holds collected fluid until it is emptied.

Key Features

• Fluid Lock: Patented design prevents overfilling and holds collected fluid
• Direct Fitment: Mounts to the OEM power steering reservoir bracket – no drilling
• N54-Specific Adapters: Billet 10AN adapters, no OEM vent tube modification
• Large Ports: 10AN ORB inlet/outlet, 4AN ORB drain
• 2-Step Baffling: Two-step oil separation
• Dipstick: O-ring sealed dipstick for easy inspection

What's Included

• Aluminium oil catch can with integrated dipstick
• Aluminium laser-cut BMW-specific mounting bracket
• Aluminium 10AN BMW-specific PCV adapter fittings
• Aluminium 10AN hose ends and adapter fittings
• 10AN PCV hose for modified vehicles
• Stainless steel mounting hardware

Optional Parts

• Radium Catch Can Petcock Drain Kit (20-0024) – Drain the can without removing the reservoir, where space allows

Important Notes

• 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 leaking under load
• The kit mounts to the power steering reservoir bracket on the front left-hand side of the engine bay – Radium does not state RHD fitment
• Installation instructions are available in the Instructions tab

Vehicle Fitment

• BMW 135i (N54)
• BMW 335i (N54)
• BMW 535i (N54)

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.