Bosch 8113 Spark Plug

Overview of Bosch OE Fine Wire Double Platinum Spark Plug 8113

The Bosch OE Fine Wire Double Platinum Spark Plug 8113 is engineered for reliable ignition performance in select Ford, Lincoln, Mazda, and Mercury vehicles. Designed with precision materials and specifications, this spark plug supports efficient combustion and consistent engine operation.

• Double platinum center and ground electrode tips for enhanced durability
• 6000 ohm resistor to reduce electrical interference
• Standard ground electrode tip and configuration
• Pre-gap size of 1.1 mm for optimal spark gap
• Tapered seat type with 14 mm thread diameter and 17.5 mm reach
• Hex size of 16 mm for installation with common tools
• Ceramic non-projected insulator for heat resistance
• Manufacturer heat range rating of 6 suitable for various driving conditions
• Center electrode core made of nickel-yttrium and copper for conductivity

Details on Bosch OE Fine Wire Double Platinum Product Line

The OE Fine Wire Double Platinum line from Bosch features spark plugs with fine wire electrodes coated in platinum on both the center and ground electrodes. This design reduces electrode wear and maintains a stable spark over time, contributing to consistent ignition and longer service life. The 8113 part number belongs to this line, offering a balance of durability and performance for 4-cycle engines in compatible vehicles.

Technical Description and Specifications

The Bosch 8113 spark plug incorporates a 6000 ohm resistor to minimize radio frequency interference, ensuring smooth operation of vehicle electronics. Its single ground electrode with a standard tip design and platinum-nickel-yttrium composition provides reliable spark delivery. The ceramic insulator is non-projected, enhancing heat dissipation and durability. With a tapered seat and 17.5 mm reach, this spark plug fits securely in the combustion chamber. The heat range 6 rating aligns with the thermal requirements of many Ford, Lincoln, Mazda, and Mercury models, including the Ford F-150, Mustang, and Lincoln Town Car.

Compatible Vehicles and Common Applications

• Ford F-150, F-250, and Ranger models
• Lincoln Town Car and Grand Marquis
• Mazda B4000 pickup trucks
• Mercury Grand Marquis and Mountaineer
• Ford E-Series vans such as E-150, E-250, and E-350 variants

Issues Addressed by Bosch Spark Plug 8113

• Misfiring or rough idling due to worn spark plugs
• Reduced fuel efficiency from inconsistent ignition
• Difficulty starting engines in cold or variable conditions
• Engine hesitation or power loss under load
• Interference with vehicle electronics caused by spark plug noise

Installation Notes and Tips

Ensure the spark plug gap is set to the specified 1.1 mm pre-gap before installation. Use a 16 mm socket wrench for proper tightening to avoid damage to the tapered seat. It is recommended to replace spark plugs in sets to maintain balanced engine performance. Always allow the engine to cool before removing old plugs to prevent thread damage.

Quality Assurance and Warranty

Bosch OE Fine Wire Double Platinum spark plugs are manufactured to meet OEM standards for fit, form, and function. The use of premium materials such as platinum and nickel-yttrium alloys ensures durability and consistent performance. While specific warranty details may vary, Bosch products typically come with a limited warranty against manufacturing defects.