Delphi GN10666 Ignition Coil

Delphi GN10666 Ignition Coil for Subaru

The Delphi GN10666 ignition coil is a coil-on-plug replacement built for direct ignition service on select Subaru applications. It uses a 3-terminal male blade connection and includes the ignition coil plus an instruction sheet for service reference.

Key Features

• Coil-on-plug ignition coil for direct spark delivery
• 3-terminal blade connector with male terminals
• OE-focused design backed by Delphi’s century of original equipment experience
• Built for select 2010-2015 Subaru Legacy and Outback, plus 2010-2014 Subaru Tribeca applications
• Part number GN10666 for easy identification and ordering

Application Details

Compatible with 2010-2015 Subaru Legacy, 2010-2015 Subaru Outback, and 2010-2014 Subaru Tribeca ignition systems. If you are searching for a Subaru Legacy ignition coil, Subaru Outback coil-on-plug replacement, or a Subaru Tribeca ignition coil, GN10666 is the direct-fit part number to verify against your vehicle’s original coil.

Delphi draws on OE heritage and supplier experience with major automakers, and that engineering background is reflected in the GN10666 replacement coil. This part cross-references Standard Ignition UF-666 for the same application.

What This Part Helps Address

• Engine misfire caused by a weak or failing ignition coil
• Rough idle during cold start or under load
• Hard starting related to inconsistent spark output
• Check engine light conditions tied to ignition performance
• Loss of power or hesitation during acceleration

Installation Notes and Tips

Confirm the connector style, terminal count, and engine application before installation. The GN10666 uses a 3-terminal male blade connection, so match the original coil connector and inspect the spark plug well, boot condition, and surrounding wiring before reassembly. For best results, replace any worn spark plugs at the same time if service history indicates wear.

Quality Assurance

Delphi builds aftermarket parts using OE experience and original equipment knowledge developed through long-term supplier relationships with leading automakers. That OE background supports consistent fitment and service-ready construction for Subaru ignition repair.