Delphi GN10123 Ignition Coil

Delphi GN10123 Ignition Coil Overview

The Delphi GN10123 ignition coil is a DIS coil built for direct ignition systems that use blade terminals and female pin connectors. It draws on Delphi’s OE heritage and decades of supplier experience to support reliable spark delivery in a wide range of Buick, Chevrolet, Pontiac, Oldsmobile, Cadillac, Isuzu, Honda, and GMC applications.

Compatible With Buick Century, Regal, LeSabre, Park Avenue, Riviera, Skylark, LaCrosse, and Lucerne applications, as well as Chevrolet Impala, Monte Carlo, Malibu, Lumina, Camaro, Cavalier, Corvette, S10, and Lumina APV models. The Delphi GN10123 is also used across Pontiac Grand Prix, Grand Am, Bonneville, Firebird, Sunfire, Montana, and Aztek fitments.

Key Features

• DIS coil design for distributorless ignition systems
• Blade terminal type with 2 female terminals
• Interface includes 2 female pin connectors and 2 high-voltage terminals
• Connector interface mates with the module
• Includes ignition coil and instruction sheet
• OE-focused engineering from Delphi’s aftermarket program

Detailed Description

Delphi GN10123 is an ignition coil engineered for vehicles that rely on a distributorless ignition system. The coil’s blade-style, 2-terminal female connection and module-mating interface are specified to match the electrical layout used in many GM and related platforms. For drivers servicing Buick LeSabre, Chevrolet Impala, Pontiac Grand Prix, or Oldsmobile Alero applications, this part number provides a direct replacement path for ignition system repair.

This part cross-references Standard Ignition DR-39 and DENSO Auto Parts 673-7102 for the same application.

What It Helps Address

• Misfire conditions caused by a weak or failing ignition coil
• Hard starting related to inconsistent spark output
• Rough idle from unstable ignition performance
• Loss of power under load when coil output drops
• Check engine light concerns tied to ignition system faults

Installation Notes and Tips

Verify connector style, terminal count, and module interface before installation. Confirm vehicle-specific fitment for the exact year and engine configuration, especially on Buick Century, Chevrolet Monte Carlo, and Pontiac Grand Am applications where multiple ignition layouts may exist. Follow the included instruction sheet and inspect related ignition components, including plugs and wiring, during service.

Quality Assurance

Delphi builds aftermarket parts using OE experience and knowledge developed through long-term supplier relationships with major automakers. That OE-focused background is reflected in the GN10123 ignition coil’s design and application coverage across many 1986-2009 Buick, Chevrolet, Pontiac, Oldsmobile, Cadillac, Isuzu, Honda, and GMC vehicles.