CSF FR-S/BRZ/86/GR86 All-Aluminum Filler Neck w/1.4 bar High Pressure Radiator Cap

The CSF FR-S/BRZ/86/GR86 All-Aluminum Filler Neck with a 1.4 bar High Pressure Radiator Cap represents a significant upgrade over the factory-installed plastic filler neck. Designed specifically for the Scion FR-S, Subaru BRZ, Toyota 86, and GR86 models within the specified year ranges, this component enhances both the durability and performance of your vehicle’s cooling system. Manufactured from high-grade aluminum, the filler neck is 100% TIG-welded, ensuring exceptional structural integrity and resistance to heat and pressure. Its mirror-polished finish not only provides a refined aesthetic but also contributes to corrosion resistance, extending the component’s lifespan under demanding operating conditions. The included radiator cap is a high-quality “mini style” unit, rated at 1.4 bar, which is engineered to maintain optimal cooling system pressure and improve overall thermal efficiency. Installation is straightforward and requires no modifications, allowing for a seamless drop-in replacement that can be completed in under five minutes. This ease of installation makes it an ideal choice for both professional mechanics and experienced enthusiasts seeking to enhance their vehicle’s cooling reliability without extensive downtime. Key Features All-aluminum construction: Provides superior strength and heat dissipation compared to OEM plastic filler necks. 100% TIG-welded: Ensures a robust, leak-free assembly with high precision craftsmanship. Mirror polished finish: Enhances corrosion resistance and offers a premium appearance. 1.4 bar high-pressure radiator cap: Maintains optimal system pressure for improved cooling performance. Integrated 1/8 NPT sensor port: Allows for easy installation of aftermarket temperature or pressure sensors, with a preinstalled optional plug included. Compatibility and Applications Year Range Make Chassis Code Model Trim Engine / Trans / Etc Notes 2013-2016 Scion ZN6 FR-S – 2L H4 – 2022-2025 Subaru ZN8 BRZ – 2.4L H4 – 2024-2025 Subaru ZN8 BRZ Limited 2.4L H4 – 2024-2025 Subaru ZN8 BRZ Premium 2.4L H4 – 2024-2025 Subaru ZN8 BRZ Sport-tech 2.4L H4 – 2013-2020 Subaru ZN6 BRZ – 2L H4 – 2017-2020 Toyota ZN6 86 – 2L H4 – 2022-2023 Toyota ZN8 GR86 – 2.4L H4 – OEM Part Numbers Subaru: 45151CA000 Subaru: 45151CC000 Toyota: SU003 03939 Toyota: SU003-03939 Toyota: SU00303939 Toyota: SU003 09080 Toyota: SU003-09080 Toyota: SU00309080 Warranty Information Cooling Systems and Flexibles, Inc. (CSF) stands behind the quality and reliability of its high-performance cooling components. This filler neck is covered under a comprehensive 2-year warranty for the original purchaser, provided the product is used under normal operating conditions and installed in the original vehicle. For full warranty details and terms, please visit our Warranty Page. SKU# 8044 Warranty Term: 2 years In summary, the CSF All-Aluminum Filler Neck with 1.4 bar High Pressure Radiator Cap is a precision-engineered solution designed to improve the durability, performance, and serviceability of your vehicle’s cooling system. Its robust aluminum construction, superior welding quality, and high-pressure cap ensure reliable operation under demanding conditions, making it an essential upgrade for owners of the FR-S, BRZ,