Radium PCV Delete Fitting — 3/8" BSPT to 10AN Male | Subaru WRX (2015-2021) / BRZ / Toyota 86 / Scion FR-S (FA20 / 4U-GSE)

This specially machined aluminium fitting replaces the stock PCV valve on top of the Toyota 4U-GSE and Subaru FA20 engine blocks, found in the 2015+ Subaru WRX, Subaru BRZ, Toyota 86, and Scion FR-S. It converts the threaded hole in the block to a 10AN male fitting, allowing a clean AN hose connection for catch can or PCV system plumbing.

Machined from 6061 aluminium with a black anodized finish. Overall height: 3.1".

Installation Notes: Always apply a small amount of PTFE thread sealant before installing. Hand tighten first, then use a 7/8" deep socket wrench to spin the fitting a further 1.5 to 3 turns until secure.

Vehicle Fitment:

• Subaru WRX (2015-2021) — FA20 engine
• Subaru BRZ — FA20 / 4U-GSE engine
• Toyota 86 — 4U-GSE engine
• Scion FR-S — 4U-GSE engine

Specifications:

• Block thread: 3/8" BSPT
• AN fitting: 10AN Male
• Material: 6061 aluminium, black anodized
• Overall height: 3.1"
• Sealing: PTFE thread sealant required

Available Part Numbers:

• 14-0292 — PCV Delete Fitting, 3/8" BSPT to 10AN Male (FA20 / 4U-GSE)

Why Radium Engineering?

• ✅ Manufactured in the USA to motorsport-grade tolerances
• ✅ CNC-machined 6061 aluminium with black anodized finish for durability and corrosion resistance
• ✅ Trusted by tuners and race teams running high-power FA20 / 4U-GSE builds worldwide
• ✅ Direct OEM PCV valve replacement — no cutting or fabrication required
• ✅ Converts block port to 10AN for clean catch can and PCV system integration