HN-02 OBS California Glow Plug Overlay Harness

California-to-Federal Glow Plug Relay Wiring Adapter – 1997 F-Series & E-Series (Shunted Relay Models)

If you own a 1997 California-emissions F-Series or E-Series with a shunted glow plug relay, this wiring adapter allows you to upgrade to the far more common and readily available federal-style glow plug wiring harness.

This adapter adds the three additional wires needed for proper PCM communication, ensuring your glow plug system functions exactly as it should after the harness conversion.

Key Features:

• Allows use of federal-style glow plug harness on California-emissions trucks

• Adds the missing 3 communication wires required for proper PCM control

• Compatible with 1997 F-Series & E-Series equipped with shunted glow plug relays

• Plug-and-play integration with the federal wiring harness

Perfect For:

• Replacing hard-to-find California glow plug harnesses

• Ensuring proper relay communication and cold-start performance

• Restoring reliability to your 7.3L Powerstroke glow plug system

Make replacing your discontinued California glow plug harness simple and reliable with this California-to-Federal glow plug relay wiring adapter.