Radium PCV Fluid Lock Catch Can Kit, Subaru WRX VB (2022+)

The Radium Engineering 20-0754-FL PCV Fluid Lock Catch Can Kit is a purpose-built positive crankcase ventilation solution for the Subaru WRX VB (2022+). Running inline between the PCV valve and the intake manifold, this kit intercepts oil-saturated crankcase vapour before it re-enters the engine — protecting the FA24F engine from oil contamination during idle, cruise, and deceleration.

The catch can mounts to threaded bosses on the ABS unit using factory holes — no cutting, drilling, or permanent modifications required. The kit is a closed-loop design — it does not vent to atmosphere (VTA), making it emissions compliant and track legal. No extra inline check valve is required — Radium catch cans are pressure sealed.

Note: This kit addresses the PCV side only. It does not address blow-by from the CCV side of the crankcase. For complete coverage, pair with the Radium 20-0755-FL CCV Catch Can Kit, or see the Radium 20-0756-FL Dual Kit for both circuits in one purchase.

PCV Circuit

The PCV catch can runs inline between the PCV valve and the intake manifold. When intake manifold pressure is near or above atmospheric (under boost), the PCV check valve closes and this circuit experiences no flow. Under idle, steady-state cruise, and deceleration, the PCV hose experiences metered vacuum — conditions that would normally draw crankcase vapour, unspent fuel, and oil sludge directly into the intake manifold immediately after a high-load run. The Radium catch can captures these contaminants and routes clean filtered air back into the engine, promoting negative crankcase pressure for optimal performance and preventing oil vapours from entering the cabin.

Key Features

• PCV circuit coverage — inline between PCV valve and intake manifold
• Fluid Lock design — prevents fluid from draining back into the engine when the can is full
• Large 10AN ORB ports — maximise flow and minimise restriction
• 4AN ORB drain port — easy, clean draining without removing the can
• 2-step oil separation baffling — highly effective at separating oil mist from blow-by vapour
• O-ring sealed dipstick — check fluid level without opening the system
• Closed-loop system — emissions compliant and track legal, no VTA
• WRX VB-specific mounting bracket — mounts to ABS unit threaded bosses using factory holes
• Pressure sealed — no extra inline check valve required
• No permanent modifications required — no cutting or drilling

Kit Includes

• Baffled oil catch can (Fluid Lock)
• WRX VB-specific mounting bracket
• 12AN adapter fittings and hose ends
• 3/4" PCV hose
• Stainless steel hardware

Vehicle Fitment

• 2022+ Subaru WRX (VB) — FA24F

Available Part Numbers

• 20-0754-FL — PCV Fluid Lock Catch Can Kit, Subaru WRX VB 2022+ (PCV side only)
• 20-0755-FL — CCV Fluid Lock Catch Can Kit, Subaru WRX VB 2022+ (sold separately)
• 20-0756-FL — Dual Fluid Lock Catch Can Kit, Subaru WRX VB 2022+ (CCV + PCV, sold separately)

Why Radium Engineering?

• ✔ Designed and manufactured in the USA
• ✔ CNC machined billet aluminium — precision fit, no compromise
• ✔ Closed-loop, track-legal design — no VTA
• ✔ Trusted by professional motorsport teams and serious enthusiasts worldwide
• ✔ Exclusively distributed in Australia by Coore

Genuine Radium Engineering product. Stocked in Sydney for fast Australian delivery. PCV side only — does not address CCV blow-by. Pair with 20-0755-FL CCV Kit or see 20-0756-FL Dual Kit for complete coverage. Professional installation recommended. No permanent vehicle modifications required.