Delphi GN10484 Ignition Coil

Delphi GN10484 Ignition Coil Overview

The Delphi GN10484 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 is supplied with an instruction sheet for installation reference.

Compatible with 2004-2010 Subaru Forester, 2004-2010 Subaru Impreza, 2005-2009 Subaru Legacy, 2005-2009 Subaru Outback, and 2004-2006 Subaru Baja, this Delphi ignition coil supports reliable spark delivery for common Subaru misfire repairs. The GN10484 is a direct-fit option for vehicles using a coil-on-plug ignition design.

Key Features

• Coil-on-plug ignition coil for direct spark delivery
• 3-terminal male blade connector for proper electrical interface
• Supplied with ignition coil and instruction sheet
• OE-focused design backed by Delphi’s long history supplying original equipment
• Cross-references Standard Ignition UF-508 and Beck/Arnley 178-8392 for the same application

Detailed Product Description

Delphi GN10484 is engineered for Subaru ignition systems that use a coil-on-plug layout, where each coil mounts directly to the spark plug location. Delphi draws on more than a century of OE experience and original-equipment knowledge to produce aftermarket ignition components that match the demands of modern engine management systems. For drivers and technicians servicing Subaru Forester, Impreza, Legacy, Outback, or Baja models, this ignition coil provides a direct replacement path for restoring consistent spark output.

Use the GN10484 when servicing ignition-related drivability concerns on 2004-2010 Subaru Forester and Impreza, 2005-2009 Subaru Legacy and Outback, and 2004-2006 Subaru Baja. The part number GN10484 is also a useful reference when searching for Subaru ignition coil replacement parts by OE-style interchange.

Common Issues This Part Can Address

• Engine misfire codes
• Rough idle during warm-up or acceleration
• Hard starting caused by weak ignition output
• Intermittent spark loss at one cylinder
• Reduced engine performance from a failing coil-on-plug unit

Installation Notes and Tips

Confirm the connector style, terminal count, and engine application before installation. Inspect the spark plug, boot, and wiring harness for heat damage, corrosion, or oil contamination, since those conditions can affect coil performance. Clear diagnostic trouble codes after repair and verify proper engine operation under load.

Quality Assurance

Delphi builds this ignition coil using OE heritage and application knowledge developed through decades of original-equipment supply. The GN10484 is designed to meet the expectations of professional repair work on Subaru ignition systems.