Subaru OEM Oil Cooler O-Ring | 21370KA001 | 1992–2014 WRX & 1994–2021 STI

Genuine Subaru OEM oil cooler O-ring designed to provide a proper seal between the engine oil cooler and engine block. Built to Subaru specifications for reliable sealing and leak-free engine performance.

Fitment:
• 1992–2014 WRX
• 1994–2021 STI

Note:
Recommended replacement whenever the oil cooler is removed or serviced. This O-ring is a common source of oil leaks on aging EJ engines and is often replaced during leak repairs and preventative maintenance. Designed for turbocharged WRX and STI applications.