Bosch 7911 Spark Plug

Reliable Ignition Performance for Select Vehicles

The Bosch Nickel 7911 spark plug is engineered to deliver consistent ignition performance for a range of vehicles including BMW 318i, Ford Ranger, and Toyota Land Cruiser. Designed with durable materials and precise specifications, this spark plug supports efficient combustion and engine reliability.

• Resistance: 6000 ohms for optimal electrical noise suppression
• Ground Electrode Tip Design: Tapered v-profile for improved spark exposure
• Pre-Gap Size: 0.8 mm for precise ignition timing
• Center Electrode Core Material: Nickel-yttrium and copper for durability
• Thread Diameter: 14 mm with 19 mm reach for proper fitment
• Seat Type: Flat to ensure secure sealing
• Manufacturer Heat Range: 9 suitable for moderate to high operating temperatures
• Hex Size: 20.8 mm for standard installation tools
• Insulator Material: Ceramic with non-projected design for heat resistance

About the Bosch Nickel Spark Plug Line

The Bosch Nickel product line focuses on spark plugs that combine nickel-based electrode materials with reliable construction to provide steady ignition performance. The Nickel 7911 spark plug features nickel-yttrium center electrode tips and nickel ground electrode tips, offering a balance of durability and conductivity suitable for 4-cycle engines in various passenger and light truck applications.

Technical Details and Compatibility

The Bosch 7911 spark plug is designed with a single ground electrode and a tapered v-profile tip to optimize spark exposure and combustion efficiency. Its 6000 ohm resistance helps reduce electromagnetic interference with vehicle electronics. The flat seat and 14 mm thread diameter with 19 mm reach ensure compatibility with many models from Bentley, BMW, Buick, Cadillac, Chevrolet, Dodge, Ford, Geo, GMC, Jeep, Land Rover, Mazda, Mercedes-Benz, Oldsmobile, Pontiac, Rolls-Royce, and Toyota.

Common Applications and Problem Solving

• Restores proper ignition in BMW 320i and 528i models experiencing misfires
• Improves engine start-up reliability in Ford Ranger and Jeep Cherokee vehicles
• Reduces engine hesitation and rough idling in Toyota Land Cruiser and Dodge Charger
• Helps maintain fuel efficiency in Mercedes-Benz and Cadillac models
• Supports smooth engine operation in Chevrolet S10 and GMC S15 trucks

Installation Notes and Tips

• Verify correct spark plug gap of 0.8 mm before installation
• Use a 20.8 mm socket wrench for proper torque application
• Ensure the flat seat matches the cylinder head design for proper sealing
• Check thread engagement carefully to avoid cross-threading
• Recommended for 4-cycle engines only

Quality Assurance and Warranty

Bosch spark plugs, including the Nickel 7911, are manufactured to meet strict quality standards with durable ceramic insulators and corrosion-resistant electrodes. This part includes a resistor to minimize radio frequency interference. Warranty coverage details should be confirmed with the vehicle manufacturer or Bosch authorized service centers.