Bosch 7956 Spark Plug

Bosch 7956 Nickel Spark Plug Overview

Bosch 7956 is a conventional nickel-copper spark plug built for steady ignition performance and value. It uses a yttrium-enhanced nickel center electrode with a copper core to support longer service life than a basic copper-core design, while meeting or exceeding OE specifications for nickel-copper spark plugs.

Compatible With applications such as Chevrolet Aveo, Subaru Impreza, Mazda Miata, and Nissan Sentra, Bosch 7956 is a practical OE-style replacement for a wide range of import and domestic engines. The Bosch Nickel line focuses on dependable secondary ignition performance with straightforward serviceability.

Key Features

• Conventional nickel-copper spark plug for everyday engine service
• Yttrium-enhanced nickel center electrode with copper core
• Resistor design rated at 6000 ohms
• Tapered V-profile ground electrode tip for consistent spark exposure
• Flat seat, 14 mm thread diameter, 19 mm reach, and 16 mm hex size
• Ceramic insulator with non-projected tip style
• Manufacturer heat range 7

Detailed Product Description

The Bosch Nickel product line is built around conventional spark plug construction with materials selected for stable ignition and OE-level fitment. Bosch 7956 uses a nickel-ytrium center electrode paired with a copper core to balance durability and conductivity, while the nickel ground electrode and tapered V-profile tip support reliable spark delivery under normal driving conditions. This spark plug is a direct secondary ignition service part for engines specified for a flat-seat, 14 mm plug with a 1.1 mm pre-gap.

Part number 7956 appears across many fitments, including Chevrolet Aveo, Kia Spectra, Subaru Forester, Mazda Protege, and Nissan Frontier applications. It is also listed for several Honda, Suzuki, Saab, Isuzu, and Mitsubishi models, making Bosch 7956 a broad-coverage replacement choice when the engine calls for this plug specification.

Common Problems This Part Can Address

• Rough idle caused by worn spark plug electrodes
• Hard starting from weak or inconsistent ignition output
• Misfire conditions related to plug wear or incorrect gap
• Reduced throttle response from degraded secondary ignition performance
• Service intervals overdue on OE-style nickel spark plugs

Installation Notes and Tips

• Verify the engine calls for a flat-seat spark plug with 14 mm thread diameter, 19 mm reach, and 16 mm hex size before installation.
• Check the specified gap for the vehicle application; listed fitments include 0.032 in, 0.039 in, 0.040 in, 0.044 in, and 0.050 in requirements depending on model.
• Use the vehicle service manual for torque and removal procedures to avoid thread or insulator damage.
• Inspect ignition wires or coil-on-plug components during spark plug service if misfire symptoms are present.

Quality Assurance

Bosch engineers this spark plug to meet or exceed Original Equipment specifications for nickel-copper core applications. The Bosch 7956 is part of the Nickel line, which emphasizes dependable OE-style construction and consistent ignition performance for routine maintenance.