Bosch 8115 Spark Plug

Overview of Bosch OE Fine Wire Double Platinum Spark Plug 8115

The Bosch OE Fine Wire Double Platinum Spark Plug 8115 is engineered for reliable ignition performance in select Chrysler, Dodge, Jeep, and Plymouth vehicles. Designed with durable platinum electrodes and a ceramic insulator, this spark plug supports efficient combustion and consistent engine operation.

• Double platinum electrodes for extended durability
• 6000 ohm resistance resistor to reduce electrical noise
• Standard ground electrode tip and configuration
• Flat seat type with 14mm thread diameter and 19mm reach
• Compatible with 4-cycle engines in various Chrysler, Dodge, Jeep, and Plymouth models

Detailed Features and Specifications

This Bosch spark plug features a center electrode tip made of platinum and a core composed of nickel-yttrium and copper, providing stable conductivity and wear resistance. The ground electrode tip combines platinum and nickel-yttrium for enhanced longevity. The insulator is made from ceramic with a projected design to improve spark exposure and combustion efficiency. With a pre-gap size of 1mm and a manufacturer heat range of 8, this spark plug is optimized for moderate heat dissipation and performance. The hex size is 16mm, facilitating standard installation tools.

OE Fine Wire Double Platinum Product Line

The OE Fine Wire Double Platinum line by Bosch is designed to deliver consistent ignition performance with fine wire electrodes that reduce voltage requirements and wear. This product line focuses on durability and efficiency, making it suitable for vehicles requiring precise ignition timing and long service intervals. The 8115 spark plug exemplifies these qualities with its double platinum construction and resistor design.

Compatible Vehicles and Applications

• Chrysler Concorde, Intrepid, LHS, New Yorker
• Dodge Dakota, Ram 1500, Viper
• Jeep Cherokee, CJ5, CJ7, Grand Cherokee, Grand Wagoneer, Scrambler, TJ, Wrangler
• Plymouth Prowler
• Other models including J10 and Wagoneer

Common Issues Addressed by Bosch Spark Plug 8115

• Engine misfires and rough idling
• Poor fuel efficiency due to incomplete combustion
• Difficulty starting the engine
• Reduced engine power and acceleration
• Excessive exhaust emissions

Installation Notes and Tips

Ensure the spark plug gap is set to the specified 1mm pre-gap before installation. Use a 16mm socket wrench for proper tightening to avoid damage to the flat seat. The 19mm reach is designed for specific cylinder head configurations; verify compatibility with your vehicle model. Always replace spark plugs in sets to maintain balanced engine performance.

Quality Assurance and Warranty

Bosch spark plugs undergo rigorous testing to meet OEM standards for fit, form, and function. The 8115 spark plug includes a built-in 6000 ohm resistor to minimize radio frequency interference. While specific warranty details vary by distributor, Bosch products typically come with a limited warranty covering defects in materials and workmanship.