Denso 5047 Spark Plug

Overview of Denso 5047 Spark Plug for Ford and Lincoln Vehicles

The Denso 5047 spark plug is engineered for reliable ignition performance in select Ford, Lincoln, and Mercury models. Designed with a U-groove ground electrode tip, this spark plug supports efficient combustion and consistent engine operation in vehicles like the Ford Mustang and Lincoln Continental.

• 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
• Pre-gap size of 1.1 mm optimized for ignition efficiency
• Tapered seat type and 14 mm thread diameter for secure fitment
• Hex size of 16.0 mm for standard installation tools
• Manufacturer heat range rating of 16 suitable for specified vehicle applications
• 18.00 mm reach for proper combustion chamber positioning

Details on the U-Groove Conventional Brand 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 helps improve ignition reliability and combustion efficiency in conventional spark plug applications. The 5047 part number belongs to this line, offering a balance of durability and performance for secondary ignition systems in compatible Ford, Lincoln, and Mercury vehicles.

Technical Description and Compatibility

The Denso 5047 spark plug incorporates a nickel ground electrode tip and a copper core center electrode with a nickel tip, combining corrosion resistance with excellent electrical conductivity. The single ground electrode and standard ground configuration provide a stable spark path. With a pre-gap size of 1.1 mm and a tapered seat, this spark plug ensures proper sealing and ignition timing. It is compatible with various Ford, Lincoln, and Mercury models including the Mustang, Taurus, Town Car, and Grand Marquis, among others.

Common Applications and Problem Solving

• Replacement for worn or fouled spark plugs in Ford Aerostar and Lincoln Mark VII
• Resolves misfires and rough idling in Mercury Cougar and Ford Ranger
• Improves cold start performance in Lincoln Continental and Ford Thunderbird
• Addresses poor fuel economy and engine hesitation in Ford Sable and Mercury Zephyr
• Maintains ignition reliability in Ford LTD Crown Victoria and Lincoln Town Car

Installation Notes and Tips

When installing the Denso 5047 spark plug, ensure the pre-gap is set to 1.1 mm if adjustment is necessary. Use a 16 mm socket wrench for proper torque application. The tapered seat requires careful tightening to avoid damage to the combustion chamber sealing surface. Always refer to the vehicle manufacturer’s specifications for torque values and installation procedures to maintain optimal performance.

Quality Assurance and Warranty

Denso spark plugs, including the 5047 part number, are manufactured to meet OEM standards for fit, form, and function. The use of nickel and copper materials in the electrodes supports long service life and consistent ignition performance. While specific warranty details may vary, Denso products typically come with a limited warranty against manufacturing defects, ensuring reliability for your ignition system needs.