Bosch 7957 Spark Plug

Overview of Bosch Nickel Spark Plug 7957

The Bosch Nickel Spark Plug 7957 is engineered for reliable secondary ignition performance in a wide range of vehicles. Designed with a tapered v-profile ground electrode tip and nickel-based materials, this spark plug supports efficient combustion and consistent engine operation.

• Resistance: 6000 ohms for noise suppression
• Ground Electrode Tip Design: Tapered v-profile for precise spark delivery
• Center Electrode Core Material: Nickel-yttrium and copper for durability
• Pre-Gap Size: 1.1 mm optimized for ignition efficiency
• Thread Diameter: 14 mm with 19 mm reach for proper fitment
• Seat Type: Flat for secure installation
• Hex Size: 16 mm for standard wrench compatibility
• Insulator Material: Ceramic with non-projected design
• Manufacturer Heat Range: 8 suitable for various engine conditions
• Resistor: Yes, to reduce electromagnetic interference

Detailed Product Features and Specifications

The Bosch Nickel 7957 spark plug features a single ground electrode with a tapered v-profile tip made of nickel, enhancing spark precision and longevity. The center electrode combines nickel-yttrium and copper materials, providing stable conductivity and resistance to wear. Its ceramic insulator is non-projected, contributing to consistent ignition and heat dissipation. With a flat seat and 14 mm thread diameter, this spark plug ensures a secure fit in compatible engines. The 1.1 mm pre-gap size is factory set to optimize ignition timing and combustion efficiency. The resistor built into the plug helps minimize radio frequency interference, supporting vehicle electronics.

About the Bosch Nickel Product Line

The Bosch Nickel line focuses on spark plugs constructed with nickel-based electrodes, balancing cost-effectiveness and reliable performance. This product line is designed to meet the ignition needs of many 4-cycle engines, providing consistent spark delivery and durability. The Nickel series is suitable for a broad range of vehicles, including many models from Acura, Honda, Toyota, Ford, and others, making it a versatile choice for secondary ignition components.

Compatible Vehicles and Applications

• Compatible with Acura, Buick, Chevrolet, Chrysler, Dodge, Ford, Geo, Honda, Hyundai, INFINITI, Jaguar, Jeep, Kia, Lincoln, Mazda, Mercury, Mitsubishi, Nissan, Oldsmobile, Plymouth, Pontiac, Saab, Saturn, Subaru, Suzuki, Toyota
• Fits models such as 9-2X, 200SX, 240SX, 323, 626, Accent, Achieva, Altima, Aveo5, B150, B250, B350, B1500, B2500, B3500, Blazer, Breeze, Calais, Camry, Capri, Caravan, Celica, Cirrus, Civic del Sol, Colt, Continental, Corolla, Cougar, CRX, Cutlass Calais, Cutlass Supreme, D21, Dakota, Eclipse, Elantra, Equinox, Escort, Expo, Expo LRV, Frontier, Galant, Grand Am, Grand Caravan, Grand Cherokee, Grand Prix, Grand Voyager, Grand Wagoneer, Impreza, Integra, J30, K1500, Lancer, Lumina APV, M30, Maxima, Miata, Mirage, Montero, Montero Sport, MPV, MX-3, MX-6, NX, Outlander, Pathfinder, Prelude, Prizm, Probe, Protege, Protege5, Pulsar NX, Pursuit, Q45, QX4, Ram 1500, Ram 2500, Ram 3500, Rio, Rio5, Santa Fe, SC, SC1, SC2, Scoupe, Sebring, Sentra, Sephia, Skylark, SL, SL1, SL2, Sonata, Sportage, Storm, Stratus, SW1, SW2, Tercel, Thunderbird, Tiburon, Tracer, Villager, Vitara, Voyager, XJ8

Common Issues Addressed by Bosch Spark Plug 7957

• Misfiring or rough idling due to worn or faulty spark plugs
• Difficulty starting the engine in cold or damp conditions
• Reduced fuel efficiency caused by incomplete combustion
• Engine hesitation or loss of power under acceleration
• Excessive emissions from inefficient ignition

Installation Notes and Tips

Before installation, verify the spark plug gap is set to 1.1 mm as specified. Use a 16 mm socket wrench to install the Bosch Nickel 7957 spark plug, ensuring the flat seat seats properly to avoid compression leaks. Torque the spark plug to the vehicle manufacturer’s specifications to prevent damage to the threads or insulator. This spark plug is designed for 4-cycle engines and is not intended for outdoor power equipment. Always replace spark plugs in sets as recommended for optimal engine performance.

Quality Assurance and Warranty

Bosch manufactures the 7957 spark plug to meet strict quality standards, using durable nickel-yttrium and copper materials for long service life. The resistor built into the plug reduces electromagnetic interference, supporting vehicle electronics. While specific warranty details are not provided here, Bosch products typically come with manufacturer-backed warranties covering defects in materials and workmanship. Refer to Bosch’s official documentation for warranty terms.