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Vendor:SubaruSTI 1.3 Bar High Pressure Radiator Cap
Regular price $76.95Sale price $76.95 Regular priceUnit price per -
Up to $3.94 OFFVendor:KoyoKoyo Hyper Radiator Cap - Shallow Plunger Style - Blue Label - SK-D13
Only 6 leftRegular price $45.26Sale price $45.26 Regular priceUnit price per$49.20 -
Vendor:CSFCSF 13+ BRZ / 13-20 Toyota 86 / 22+ GR86 Aluminum Filler Neck w/ High Pressure Radiator Cap - 8044
Regular price $139.00Sale price $139.00 Regular priceUnit price per -
Vendor:GatesGates Subaru Radiator Cap - 13 psi - 31533
Only 5 leftRegular price $20.13Sale price $20.13 Regular priceUnit price per -
Vendor:GatesGates Subaru Radiator Cap - 31333
Only 3 leftRegular price $10.94Sale price $10.94 Regular priceUnit price per -
Up to $3.05 OFFVendor:MishimotoMishimoto High-Pressure 1.3 Bar Radiator Cap For 2002-14 Subaru WRX, 04-14 WRX STI - Small - One-Way - MMRC-13-ONWY
Only 2 leftRegular price $25.95Sale price $25.95 Regular priceUnit price per$29.00
Radiator Caps
Ensure your Subaru WRX, STI, BRZ, Legacy GT, or Forester XT cooling system maintains proper pressure with high-quality Subaru radiator caps from Cosworth and OEM Subaru. A properly rated radiator cap is essential for maintaining cooling system pressure, raising the coolant boiling point, and preventing overheating or coolant loss in both stock and performance Subaru builds. Whether you're maintaining your factory EJ or FA engine or upgrading your Subaru cooling system for higher boost and track use, IAG Performance offers reliable radiator cap options you can trust. Here are some of the brands we carry: CSF, Gates, Koyo, Mishimoto, and Subaru.