Delphi CE20003 Ignition Coil

Delphi CE20003 Ignition Coil Overview

The Delphi CE20003 ignition coil is an HEI-style replacement built for vehicles that use a 3-pin sealed connector and female pin terminals. It draws on Delphi’s OE heritage and application knowledge to support reliable ignition performance in a wide range of GM trucks, vans, SUVs, and performance cars.

Compatible With applications such as Chevrolet Silverado 1500, GMC Sierra 1500, Chevrolet Astro, and Chevrolet Tahoe, this ignition coil is a direct-fit service part for many 1995-2007 GM platforms. The Delphi CE20003 is also cross-referenced to Standard Ignition DR-49 for the same application.

Key Features

• HEI coil type for GM ignition systems
• 3-pin sealed connector for secure electrical connection
• Female terminal design with 3 terminals total
• OE-informed aftermarket construction from Delphi
• Includes ignition coil and instruction sheet
• Part number: CE20003

Application Details

This ignition coil is used in many Chevrolet, GMC, Cadillac, Pontiac, Buick, Oldsmobile, and Isuzu applications across the 1995-2007 model years. Common search phrases for this part include ignition coil for 1999 Chevrolet Silverado 1500, HEI ignition coil for 1996 GMC Yukon, and Delphi CE20003 for 1996-2005 Chevrolet Astro or Blazer.

Part number CE20003 is built for vehicles that require a sealed 3-pin coil connection and HEI-style ignition coil configuration. It is a practical replacement for service work on GM trucks, vans, SUVs, and select passenger cars.

What This Part Helps Address

• Engine misfire caused by weak ignition output
• Hard starting related to coil failure
• Intermittent spark loss in HEI ignition systems
• Rough idle from inconsistent coil performance
• Check engine light concerns tied to ignition faults

Installation Notes and Tips

Verify connector style, terminal count, and ignition system type before installation. This coil uses a 3-pin sealed connector with female terminals, so matching the original electrical interface is important for proper fitment. Confirm vehicle application by year, make, and model before replacing the original coil.

Fits 1996-2007 Chevrolet Express 1500, N/A; Fits 2007 Chevrolet Silverado 1500 Classic, N/A; Fits 1996-2007 GMC Savana 1500, N/A; Fits 2007 GMC Sierra 1500 Classic, N/A; Fits 1999-2006 Chevrolet Silverado 1500, N/A; Fits 2004-2006 Chevrolet Silverado 3500, N/A; Fits 1999-2006 GMC Sierra 1500, N/A; Fits 1996-2005 Chevrolet Astro, N/A; Fits 1996-2005 Chevrolet Blazer, N/A; Fits 1996-2005 Chevrolet Express 2500, N/A; Fits 1996-2005 GMC Safari, N/A; Fits 1996-2005 GMC Savana 2500, N/A; Fits 1996-2004 Chevrolet S10, N/A; Fits 1996-2004 GMC Sonoma, N/A; Fits 1996-2002 Chevrolet C1500, N/A; Fits 1996-2002 Chevrolet Express 3500, N/A; Fits 2001-2002 Chevrolet Silverado 2500, N/A; Fits 1996-2002 Chevrolet Suburban 1500, N/A; Fits 1996-2002 GMC Savana 3500, N/A; Fits 2001 Chevrolet G30, N/A; Fits 2001 Chevrolet P30, N/A; Fits 1996-1999 Chevrolet P30, N/A; Fits 1996-2001 GMC Jimmy, N/A; Fits 1996-2001 Oldsmobile Bravada, N/A; Fits 1999-2000 Cadillac Escalade, N/A; Fits 1996-2000 Chevrolet C2500, N/A; Fits 1996-2000 Chevrolet C35, N/A; Fits 1996-2000 Chevrolet C3500, N/A; Fits 1996-2000 Chevrolet K2500, N/A; Fits 1996-2000 Chevrolet K3500, N/A; Fits 1996-2000 Chevrolet Tahoe, N/A; Fits 1996-2000 GMC C2500, N/A; Fits 1996-2000 GMC C3500, N/A; Fits 1996-2000 GMC K2500, N/A; Fits 1996-2000 GMC K3500, N/A; Fits 1996-2000 GMC Yukon, N/A; Fits 1997-2000 Isuzu Hombre, N/A; Fits 1996-1999 Chevrolet C1500 Suburban, N/A; Fits 1996-1999 Chevrolet C2500 Suburban, N/A; Fits 1996-1999 Chevrolet K1500, N/A; Fits 1996-1999 Chevrolet K1500 Suburban, N/A; Fits 1996-1999 Chevrolet K2500 Suburban, N/A; Fits 1995-1999 Chevrolet Silverado, N/A; Fits 1996-1999 GMC C1500, N/A; Fits 1996-1999 GMC C1500 Suburban, N/A; Fits 1996-1999 GMC C2500 Suburban, N/A; Fits 1996-1999 GMC K1500, N/A; Fits 1996-1999 GMC K1500 Suburban, N/A; Fits 1996-1999 GMC K2500 Suburban, N/A; Fits 1996-1999 GMC P3500, N/A; Fits 1996-1997 Chevrolet Camaro, N/A; Fits 1996-1997 Pontiac Firebird, N/A; Fits 1996 Buick Roadmaster, N/A; Fits 1996 Cadillac Commercial Chassis, N/A; Fits 1996 Cadillac Fleetwood, N/A; Fits 1996 Chevrolet Caprice, N/A; Fits 1996 Chevrolet Corvette, N/A; Fits 1996 Chevrolet Impala, N/A.

Quality Assurance

Delphi builds this ignition coil with OE experience and supplier knowledge developed through work with major automakers. That background is reflected in the CE20003’s connector design, terminal layout, and application-focused construction for service replacement use.