Koyo Radiator Filler Neck - FR-S / BRZ / 86

Pick up one of Koyo's 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)

Fitment: 2013+ FRS BRZ 86

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