Delphi GN10301 Ignition Coil

Ignition Coil for Mazda Protege and Protege5

The Delphi GN10301 ignition coil is a coil-on-plug replacement built for direct ignition service on select Mazda applications. It draws on Delphi’s OE experience and aftermarket engineering to support consistent spark delivery in the 2001-2003 Mazda Protege and 2002-2003 Mazda Protege5.

Key Features

• Coil-on-plug ignition design for direct mounting at the spark plug
• 3-terminal male blade connection for straightforward electrical interface
• Includes ignition coil and instruction sheet
• Built from Delphi OE heritage and supplier knowledge
• Cross-references Standard Ignition UF-407 and Beck/Arnley 178-8310 for the same application

Product Details

Delphi GN10301 is an ignition coil for vehicles that use a coil-on-plug setup, where the coil sits directly over the spark plug to deliver high-voltage output to the ignition system. This part is compatible with 2001-2003 Mazda Protege and 2002-2003 Mazda Protege5 applications, making it a direct-fit option for drivers addressing ignition performance concerns on these Mazda models. The blade-style, 3-terminal male connector supports the factory-style electrical layout, and the part number GN10301 is commonly referenced in aftermarket interchange listings for this application.

Common Issues This Part Can Address

• Engine misfire caused by a weak or failing ignition coil
• Rough idle related to inconsistent spark output
• Hard starting from degraded coil performance
• Loss of acceleration response tied to ignition breakdown
• Check engine light conditions associated with ignition coil faults

Installation Notes and Tips

Verify connector style, terminal count, and engine application before installation. Inspect the coil boot, spark plug condition, and wiring connector for heat damage, corrosion, or oil contamination before replacing the coil. For best results, confirm fitment against the vehicle’s year and model: Fits 2001-2003 Mazda Protege, N/A; Fits 2002-2003 Mazda Protege5, N/A.

Quality Assurance

Delphi builds this ignition coil using OE-focused experience developed through long-term supply relationships with major automakers. That background is reflected in the GN10301 design and in the attention to factory-style fitment and electrical connection details.