Subaru 4-Pin Multi-Purpose Connector (Front O2 / Ignition / Sub-Harness)

Found a cracked plug while changing your spark plugs or O2 sensor? This DL 090 Sealed Series 4-pin connector is the factory replacement for several critical engine components. Because it is mounted directly to the engine or exhaust-adjacent wiring, the plastic frequently becomes "baked" and brittle, leading to broken clips that cause intermittent sensor signals.

This kit allows you to refresh the connection to your Front Oxygen Sensor or Ignition Coil Packs, ensuring your ECU gets accurate data and your coils get consistent voltage for a clean burn.

Compatibility & Fitment

This versatile 4-pin connector is a direct OEM replacement for:

• Subaru: Front Oxygen (O2) Sensor interface.

• Subaru: Ignition Coil Pack connectors (certain models).

• Subaru: Main Engine Sub-Harness junction.

• OEM P/N: 6195-0015.

What’s in the Box?

• 1x Connector Body (4-Pin)

• 4x High-Conductivity Terminals

• 4x Weatherproof Wire Seals

Installation

• Pro Tip: When replacing an O2 sensor connector, ensure your wire seals are seated perfectly to prevent moisture from creeping up the harness and "wicking" into the sensor, which can lead to premature failure.