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Koyorad Aluminum Filler Neck

Koyorad introduces an all-aluminum coolant filler neck for the 2013-2016 Scion FR-S and Subaru BRZ. This is an all-aluminum upgrade to the stock plastic piece with many features built into the design.


Billet aluminum eliminates steam erosion and cracking common with plastic filler necks
Integrated 1/8 PT sensor port (supplied with optional plug) to fit with sensors provided by most Japanese temperature gauge companies
Conversion of radiator cap style to the more durable deep plunger type - Koyorad #SK-C13 or equivalent (OEM cap will not fit, cap not included)
Direct replacement for a quick installation; a direct replacement for the stock plastic filler neck and can use the OEM hoses and clamps
Note: Will only fit with Koyorad SK-C13 or any equivalent deep plunger style cap (OEM cap will not fit, cap not included)
Pricing: $60.00



Shipping Information

  • Item Requires Shipping
  • 2.0 lbs.
  • W8.0000” x H6.0000” x L6.0000”

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