Denso 3172 Spark Plug

Overview of Denso Double Platinum Spark Plug 3172

The Denso Double Platinum Spark Plug 3172 is engineered for reliable ignition performance in select Acura and Honda vehicles. Designed specifically for models like the Civic, Civic del Sol, and Integra, this spark plug offers consistent firing and durability through advanced materials and construction.

• Double platinum electrodes for enhanced wear resistance
• 5000 ohm resistance to reduce electrical noise
• Platinum chip ground electrode tip for stable spark
• Copper core center electrode for efficient heat transfer
• Standard ground configuration with a single ground electrode
• Flat seat type with 14mm thread diameter and 19mm reach
• Pre-gap size of 1.3 mm for optimal ignition
• Hex size of 16.0 mm for easy installation
• Manufacturer heat range of 20 suitable for specified vehicles

Details on Double Platinum Brand Line

The Double Platinum line from Denso features spark plugs with platinum on both the center and ground electrodes. This dual platinum design improves electrode durability and maintains a stable spark over time, which is critical for maintaining engine efficiency and reducing misfires. The 3172 part number benefits from this technology, providing consistent ignition performance for Acura and Honda models such as the Civic and Integra.

Technical Description and Attributes

The Denso 3172 spark plug incorporates a copper core center electrode with a platinum tip, enhancing thermal conductivity and electrode longevity. The ground electrode features a platinum chip tip and nickel core material, designed in a standard single-electrode configuration. With a resistance of 5000 ohms, this spark plug helps minimize radio frequency interference. The flat seat design and 14mm thread diameter ensure proper fitment and sealing in compatible engines. The 1.3 mm pre-gap size is factory set to optimize ignition timing and combustion efficiency.

Compatible Vehicles and Common Applications

• Replacement for ignition issues in Acura Civic and Integra models
• Addressing misfires and rough idling in Honda Civic del Sol
• Improving fuel efficiency and engine responsiveness
• Resolving spark plug fouling and electrode wear
• Maintaining stable ignition in vehicles requiring a heat range of 20

Installation Notes and Tips

• Verify compatibility with Acura and Honda models before installation
• Use a torque wrench to tighten to manufacturer specifications to avoid damage
• Check and adjust spark plug gap if necessary, though pre-gap is factory set at 1.3 mm
• Inspect ignition system components for wear during replacement
• Apply anti-seize compound sparingly on threads if recommended by vehicle manufacturer

Quality Assurance and Warranty

Denso spark plugs, including the Double Platinum 3172, are manufactured to meet strict OEM standards for fit, form, and function. The use of premium materials such as platinum and copper ensures durability and consistent performance. While specific warranty details depend on the vehicle manufacturer or installer, Denso products are generally backed by quality control processes to ensure reliability in secondary ignition applications.