Champion Spark Plug OE Replacement for Autolite 3924, 3926 & More

This OEM-quality Champion spark plug is designed for direct replacement in engines originally equipped with Autolite 3924, 3926, 5503, 602, AP3924, or XS3924 spark plugs. Engineered to meet or exceed original equipment specifications, it delivers reliable performance and long-lasting durability for your vehicle’s ignition system.

Before purchasing, verify compatibility by cross-referencing your engine’s model, serial number, or current spark plug’s OEM part number. Each plug includes precise specifications—check the product images for detailed dimensions. For assistance, our knowledgeable team is available to help confirm the correct fit.