Denso 3015 Spark Plug

Overview of the Denso 3015 Spark Plug

The Denso 3015 spark plug is engineered for reliable ignition performance in select Cadillac models. Designed with a U-groove ground electrode tip, this spark plug supports efficient combustion and consistent engine operation in vehicles like the Cadillac DeVille and Eldorado.

• U-groove ground electrode tip design for improved spark exposure
• Nickel ground and center electrode tips with copper core for durability and conductivity
• Standard ground configuration with a single ground electrode
• Flat seat type with 19.00 mm reach and 14.00 mm thread diameter
• Pre-gap size of 1.5 mm and manufacturer heat range of 14
• Hex size of 20.6 mm for installation compatibility
• Resistance rating of 5000 ohms to reduce electrical interference

Detailed Product Description

The Denso 3015 spark plug belongs to the U-Groove Conventional product line, which features a unique U-groove ground electrode tip design. This design enhances the spark plug's ability to ignite the air-fuel mixture more effectively by increasing the spark exposure area. The spark plug incorporates a nickel ground electrode tip and a copper core center electrode with a nickel tip, balancing durability with excellent electrical conductivity. Its standard ground configuration and single ground electrode provide consistent ignition performance. The flat seat type ensures proper sealing in the combustion chamber, while the 19.00 mm reach and 14.00 mm thread diameter make it compatible with specific Cadillac models including the Commercial Chassis, DeVille, Eldorado, Fleetwood, and Seville. The 1.5 mm pre-gap size and heat range 14 rating are optimized for these vehicles to maintain engine efficiency and prevent fouling.

Compatible Vehicles and Applications

• Cadillac Commercial Chassis ignition systems
• Cadillac DeVille spark plug replacement
• Cadillac Eldorado secondary ignition maintenance
• Cadillac Fleetwood ignition performance
• Cadillac Seville engine tune-ups

Installation Notes and Tips

• Ensure the spark plug gap is set to 1.5 mm before installation
• Use a 20.6 mm hex socket for proper tightening
• Apply anti-seize compound on threads if recommended by the vehicle manufacturer
• Torque to manufacturer specifications to avoid damage to the flat seat
• Inspect ignition wires and coils during replacement for optimal performance

Quality Assurance and Warranty

Denso spark plugs, including the 3015 model, are manufactured to meet strict quality standards for durability and performance. The use of nickel and copper materials in the electrodes ensures consistent conductivity and resistance to wear. While specific warranty details may vary, Denso products typically come with manufacturer-backed quality assurance to support reliable ignition system operation in compatible Cadillac vehicles.