CSF Aluminum Filler Neck w/ High-Pressure Radiator Cap - Subaru BRZ / Toyota 86 / GR86 / Scion FR-S (2013+)

CSF's all-aluminum filler neck replaces the weak plastic auxiliary filler neck on the FR-S, BRZ, 86 and GR86. It's 100% TIG-welded and mirror polished, and ships with a 1.4 bar high-pressure mini-style radiator cap embossed with the CSF logo. An integrated 1/8 NPT sensor port with a preinstalled plug lets you add an aftermarket sensor, and the whole unit is a drop-in replacement that installs in under five minutes with no modifications.

Specifications

This part fits:

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy