Gen 3 Gray (2-Keyway) Harness to Gen 3 Black (1-Keyway) O2 Sensor Adapter

Reverse Adapter for Gen 3 LS Sensor/Harness Mismatch

This adapter connects a Gen 3 gray two-keyway harness to a black one-keyway oxygen sensor. Perfect for engine swaps or emissions upgrades where sensor and harness generations don’t match.

• Adapts 2-keyway Gen 3 harness to 1-keyway oxygen sensor
• OEM-quality plug-and-play design
• No wiring modification required
• Assembled with OEM tooling, OEM Delphi components, and factory wire colors
• Includes pre-wired oxygen sensor adapter

Note: Ideal for LS swaps requiring plug-level compatibility between Gen 3 sensors and harnesses.