KoyoRad Aluminum Filler Neck for 2013 to 2020 Subaru BRZ
Koyorad has raised the bar in cooling system reliability with its all-new billet aluminum filler necks, designed for a wide range of applications. These precision-machined aluminum assemblies replace factory plastic filler necks, eliminating common issues like steam erosion and cracking over time.
Each neck includes an integrated 1/8 PT sensor port, compatible with sensors from most temperature gauge brands—making it easy to monitor your engine’s cooling performance. Designed to accept robust, deep plunger-type pressure caps such as the Koyorad SK-C13, these filler necks provide a superior seal and increased durability.
Features and Benefits
- 100% direct-fit replacements
- Compatibility with your OEM hoses and clamps for a hassle-free upgrade
Fits
Note: Not compatible with the OEM radiator cap.
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