Denso 5068 Spark Plug

Reliable Ignition Performance for Select GM and Ford Vehicles

The Denso Double Platinum 5068 spark plug is engineered to deliver consistent ignition performance for a wide range of vehicles including Buick, Cadillac, Chevrolet, Ford, and GMC models. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and engine reliability.

• Double platinum electrodes for enhanced durability and stable spark
• Platinum chip ground electrode tip for improved wear resistance
• Copper core center electrode for optimal conductivity
• Standard ground configuration with a single ground electrode
• Tapered seat type and 14mm thread diameter for secure fitment
• Pre-gap size of 1.3 mm for precise ignition timing
• Hex size of 16.0 mm for easy installation
• Manufacturer heat range of 16 suitable for various driving conditions
• Reach length of 25.00 mm compatible with multiple vehicle engines

About the Denso Double Platinum Spark Plug Line

The Double Platinum line from Denso features spark plugs with platinum on both the center and ground electrodes. This design enhances electrode longevity and maintains consistent spark performance over time. The 5068 part number benefits from this technology, providing reliable ignition and reduced electrode wear compared to conventional plugs, making it suitable for vehicles requiring durable secondary ignition components.

Technical Details and Compatibility

The Denso 5068 spark plug incorporates a copper core center electrode with a platinum tip, which improves electrical conductivity and heat dissipation. The ground electrode uses a nickel core with a platinum chip tip, enhancing durability against electrode erosion. The plug’s resistance rating of 5000 ohms helps suppress electrical noise, protecting sensitive vehicle electronics. Its tapered seat and 14 mm thread diameter ensure proper sealing and fitment in engines from Buick LaCrosse to Ford Fusion and Chevrolet Equinox.

Common Applications and Problem Solving

• Restores engine misfire issues caused by worn or fouled spark plugs
• Improves cold start performance in vehicles like the Cadillac CTS and GMC Terrain
• Reduces electrode wear in high-mileage Buick and Chevrolet models
• Maintains stable ignition timing for Ford Escape and Mazda Tribute
• Helps prevent rough idling and poor fuel economy in Saturn Vue and Pontiac G6

Installation Notes and Tips

Before installation, verify the spark plug gap is set to 1.3 mm as specified. Use a 16 mm socket wrench for proper torque application. The tapered seat design requires careful threading to avoid cross-threading. It is recommended to replace spark plugs in sets to maintain balanced engine performance. Always consult the vehicle’s service manual for torque specifications and installation procedures.

Quality Assurance and Warranty

Denso spark plugs, including the Double Platinum 5068, are manufactured to meet OEM standards for fit, form, and function. The use of high-quality materials such as platinum and copper ensures durability and consistent performance. While specific warranty details may vary, Denso products typically come with a limited warranty against manufacturing defects, providing confidence in product reliability.