Denso 5353 Spark Plug

Reliable Ignition Performance for Select Vehicles

The Denso Iridium Power 5353 spark plug is engineered to deliver consistent ignition and efficient combustion for a range of vehicles including Audi, Chrysler, Dodge, Jeep, Kia, Mercedes-Benz, Mitsubishi, Porsche, Ram, and Smart models. Designed with advanced materials and precise specifications, this spark plug supports optimal engine performance and durability.

• Iridium center electrode tip for enhanced durability and ignition
• Tapercut, u-groove ground electrode tip design for improved spark exposure
• Copper core center electrode for efficient heat dissipation
• Nickel ground electrode core material with standard ground configuration
• Flat seat type with 26.50 mm reach and 12.00 mm thread diameter
• Pre-gap size of 0.9 mm and manufacturer heat range of 22
• Hex size of 16.0 mm for standard installation tools
• Resistance rating of 5000 ohms to reduce electrical interference

About the Denso Iridium Power Spark Plug Line

The Iridium Power line from Denso focuses on delivering spark plugs with iridium-tipped electrodes that provide a stable and reliable spark. This technology enhances ignition efficiency and contributes to smoother engine operation. The 5353 part number is part of this line, combining iridium with a copper core center electrode and a nickel ground electrode to balance performance and longevity.

Technical Details and Compatibility

The Denso 5353 spark plug features a single ground electrode with a tapercut and u-groove tip design, which helps improve spark exposure and combustion efficiency. The copper core center electrode aids in heat transfer, while the iridium tip ensures durability under high temperatures. With a flat seat and a reach of 26.50 mm, this spark plug fits specific models from Audi, Chrysler, Dodge, Jeep, Kia, Mercedes-Benz, Mitsubishi, Porsche, Ram, and Smart. Compatible vehicles include the Audi A8 Quattro, Chrysler 300, Dodge Challenger, Jeep Wrangler, Kia Soul, Mercedes-Benz GL450, Mitsubishi Outlander, Porsche Cayenne, Ram 1500, and Smart Fortwo among others.

Common Applications and Problem Solving

• Restores engine misfire issues caused by worn spark plugs
• Improves cold start performance in compatible vehicles
• Reduces rough idling and hesitation during acceleration
• Helps maintain fuel efficiency by ensuring proper combustion
• Minimizes electrical interference with a 5000 ohm resistance rating

Installation Notes and Tips

When installing the Denso Iridium Power 5353 spark plug, ensure the pre-gap size of 0.9 mm is maintained for optimal performance. Use a 16 mm socket wrench to tighten the spark plug to the manufacturer’s recommended torque specifications. The flat seat design requires proper seating to avoid compression leaks. It is advisable to inspect the ignition system and replace spark plugs in sets to maintain balanced engine operation.

Quality Assurance and Warranty

Denso manufactures the 5353 spark plug to meet strict quality standards, ensuring reliable performance and durability. The use of iridium and copper materials supports long service life under normal operating conditions. While specific warranty details may vary, Denso products typically come with a limited warranty against manufacturing defects. Consult the product documentation or manufacturer for exact warranty terms.