Radiator Filler Neck - Hose Mount - Cap Style - Clamp-On - 1-9/16 in Diameter - Cap Included - Aluminum - Polished - Each

CSF Filler Neck

Replace the weak plastic auxiliary filler neck of your FRS/BRZ/86 with an all-aluminum 100% TIG-welded and mirror polished upgraded version from CSF. Complete with a 1.4bar high-pressure cap with a high-quality "mini style" radiator cap, embossed with the CSF logo. This cap style is most commonly used with high-performance aftermarket caps if you wish to replace the CSF cap with another brand. Easy drop-in replacement with no modifications - can be installed in less than 5 minutes.

Additional Information

Replace the weak plastic auxiliary filler neck of your FRS/BRZ/86 with an all-aluminum 100% TIG-welded and mirror polished upgraded version from CSF. Complete with a 1.4bar high-pressure cap.

Part Type

Engine Coolant Filler Neck

• 1.4bar high-pressure cap
• All-aluminum 100% TIG-welded
• Integrated 1/8 NPT sensor port & preinstalled optional plug for aftermarket sensors
• Mirror polished

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Product Details

Reference Information

2013+ Scion Frs/Subaru Brz/Toyota 86 All-Aluminum Filler Neck W/1.4 Bar High Pressure Radiator Cap

CSF radiator filler necks with pressure caps are all-aluminum direct-fit replacements with high-pressure radiator caps. CSF manufactures the best and most reliable radiator pressure caps in the industry, selling tens of thousands every year with a range of pressures from 7 psi to 29 psi (2.0 bar). CSF is also a world leader in this segment as a trusted private label supplier to a number of different cooling product manufacturers. Replace the weak plastic auxiliary filler neck of your FRS/BRZ/86 vehicle with an all-aluminum TIG-welded and mirror polished upgraded version from CSF.