Description:

[Vehicle Fitment]: Compatible with Subaru Legacy 1999 H4 2.2L EJ22E (Non Calif-ESV), Legacy 1999 H4 2.5L EJ25D---Upstream and Downstream. [Reference Number]: 250-23091, 22690-AA43A, 22690AA73A, 250-24373, 2343091, 2344132, 22690AA290, 22690AA350. [Specification]: Wire Quantity: 3 & 4; Sensor Type: Heated; Mounting Type: Threaded; Connector Gender: Male; Package Quantity: 2x Oxygen Sensor; Packaging Type: Box. [Quality Construction]: Manufactured from premium materials for a long lifespan; Quick and easy installation, requiring no special tools.