Further Information
Upgrade your FR-S, BRZ, 86, or GR86 cooling system with CSF's all-aluminum filler neck assembly. This precision-engineered replacement eliminates the weak plastic factory component while adding durability and style. Complete with a high-performance 1.4bar radiator cap, it installs in under five minutes with zero modifications required.
Key Features:
- 100% TIG-welded all-aluminum construction for superior durability
- Mirror polished finish for a premium appearance
- 1.4bar high-pressure cap with mini-style design
- Integrated 1/8 NPT sensor port with preinstalled optional plug for aftermarket sensors
- Drop-in replacement with no vehicle modifications needed
Includes:
- All-aluminum filler neck assembly
- 1.4bar high-pressure radiator cap with CSF logo
- Preinstalled sensor port plug
Engineered for reliability. Built to last. Pure CSF performance.