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.
| Type | Aluminum auxiliary filler neck with radiator cap |
| Material | All-aluminum, 100% TIG-welded |
| Radiator Cap | 1.4 bar high-pressure mini-style cap (CSF) |
| Finish | Mirror polished |
| Fit | Drop-in, no modifications |
| Included | 1/8 NPT sensor port with preinstalled plug |
This part fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2013-2016 | Scion | FR-S | Base |
| 2013-2020,2022-2025 | Subaru | BRZ | Limited |
| 2013-2019,2022-2025 | Subaru | BRZ | Premium |
| 2015 | Subaru | BRZ | Series.Blue |
| 2019 | Subaru | BRZ | Series.Gray |
| 2016 | Subaru | BRZ | Series.HyperBlue |
| 2017 | Subaru | BRZ | Series.Yellow |
| 2018,2020,2024-2025 | Subaru | BRZ | TS |
| 2017-2020 | Toyota | 86 | Base |
| 2018-2020 | Toyota | 86 | GT |
| 2020 | Toyota | 86 | Hakone Edition |
| 2017 | Toyota | 86 | Special Edition |
| 2019 | Toyota | 86 | TRD Special Edition |
| 2023 | Toyota | GR86 | 10th Anniversary Special Edition |
| 2022-2026 | Toyota | GR86 | Base |
| 2025 | Toyota | GR86 | Hakone Edition |
| 2022-2026 | Toyota | GR86 | Premium |
| 2024 | Toyota | GR86 | TRUENO Edition |
| 2026 | Toyota | GR86 | Yuzu Edition |
Shipping: In-stock orders placed before 3 PM EST ship the same day, and everything else ships within 24 hours. Standard, expedited, and overnight options are available at checkout. Backordered items ship as soon as we get them back in stock. Contact us for lead times. See the full Shipping Policy.
Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
