Delphi GN10537 Pencil Coil-On-Plug Ignition Coil

The Delphi GN10537 is a pencil-style coil-on-plug (COP) ignition coil engineered to Original Equipment specifications. As a direct OE supplier to the world's top automakers, Delphi brings factory-grade design and materials to every aftermarket replacement coil — delivering reliable spark, fast starts, and consistent engine performance.

Pencil Coil-On-Plug Design:

• Direct coil-on-plug (COP) configuration — mounts directly onto the spark plug for a shorter spark delivery path and more precise timing control on a per-cylinder basis
• Compact, no-moving-parts design delivers energy more efficiently and continuously for improved engine performance and fuel efficiency
• Corona-resistant case fully encapsulates the coil and integral igniter module into a single, sealed package
• High-RPM capability for both everyday reliability and performance demands

OE-Grade Materials & Manufacturing:

• High-quality wire and wire coating resists cracks, pinholes, and imperfections that most commonly lead to coil failure
• Precision winding process controls wire length between adjacent windings to minimize voltage differential and reduce insulation breakdown risk
• Electrostatic paint coating ensures consistent coil inductance and prevents lamination separation
• Epoxy vacuum technique reduces air bubbles in the epoxy fill, improving insulation quality and reducing energy punch-through failures
• Designed and endurance tested to resist vibration, thermal cycling, and the stress caused by worn spark plugs

Why Choose Delphi:

• Over 100 years of OE ignition system experience as a supplier to global automakers
• More than 10 million ignition coils manufactured annually for the North American market
• Engineered to meet OE performance, durability, and electromagnetic capacity requirements

Replace a failing ignition coil with confidence using the Delphi GN10537 — a direct-fit, OE-quality pencil coil built to restore proper spark delivery, eliminate misfires, and optimize fuel efficiency.