Denso 3085 Spark Plug

Reliable Ignition with Denso U-Groove Conventional Spark Plug 3085

The Denso U-Groove Conventional Spark Plug 3085 is engineered to provide consistent ignition performance for a variety of vehicles. Designed with a U-groove ground electrode tip and quality core materials, this spark plug supports efficient combustion and engine reliability.

• U-groove ground electrode tip design for improved spark exposure
• Standard ground configuration with a single ground electrode
• Nickel ground electrode core and tip for durability
• Copper center electrode core with nickel tip for optimal conductivity
• Pre-gap size of 0.8 mm for precise spark gap
• Flat seat type with 19.00 mm reach and 14.00 mm thread diameter
• Hex size of 20.6 mm for standard installation tools
• Manufacturer heat range rating of 22 for balanced thermal performance

About the U-Groove Conventional Product Line

The Denso U-Groove Conventional spark plug line features a unique U-groove ground electrode tip design that enhances spark exposure to the air-fuel mixture. This design supports stable ignition and efficient combustion, making it suitable for conventional ignition systems. The 3085 part number is part of this line, combining traditional spark plug construction with improved electrode geometry.

Technical Details and Performance

The Denso 3085 spark plug incorporates a nickel ground electrode core and tip, providing resistance to wear and corrosion. The copper center electrode core ensures excellent thermal conductivity, while the nickel tip maintains consistent spark delivery. With a pre-gap size of 0.8 mm and a flat seat type, this spark plug is designed for precise fitment and reliable ignition. The 19.00 mm reach and 14.00 mm thread diameter make it compatible with many vehicle engines requiring these specifications.

Common Applications and Problem Solving

• Restores engine misfire issues caused by worn or fouled spark plugs
• Improves cold start performance in vehicles with conventional ignition systems
• Reduces rough idling and hesitation during acceleration
• Helps maintain fuel efficiency by ensuring proper combustion
• Supports stable ignition in vehicles requiring a heat range of 22

Installation Notes and Tips

When installing the Denso 3085 spark plug, ensure the pre-gap of 0.8 mm is maintained for optimal performance. Use a 20.6 mm hex socket for proper torque application. The flat seat design requires careful seating to avoid damage to the cylinder head. Always refer to the vehicle manufacturer’s specifications for torque settings and spark plug replacement intervals.

Quality Assurance and Warranty

Denso spark plugs are manufactured to meet strict quality standards for durability and performance. The 3085 spark plug undergoes rigorous testing to ensure consistent ignition and longevity. While specific warranty details are not provided, Denso products typically come with manufacturer-backed quality assurance to support reliable operation in compatible vehicles.