NGK 3481 Spark Plug

Reliable Ignition Performance for BMW M5 Vehicles

The NGK Standard Spark Plug 3481 is engineered to deliver consistent ignition performance for BMW M5 models. Designed with durable materials and precise specifications, this spark plug ensures efficient combustion and reliable engine operation.

• Resistance: 5000 ohms for optimal electrical performance
• Ground Electrode Tip and Configuration: Standard design with a single ground electrode
• Core Materials: Copper center electrode with nickel tip and nickel ground electrode core
• Pre-Gap Size: Factory set at 0.036 inches for precise spark delivery
• Thread Diameter: 12.00 mm with a 0.75-inch reach and flat seat type
• Hex Size: 5/8 inch for standard installation tools
• Electrical Terminal: Non-removable nut type for secure connection
• Manufacturer Heat Range: 6, suitable for BMW M5 engine requirements
• Insulator Height: 50.00 mm for proper fit and insulation

About the NGK Standard Spark Plug Line

The NGK Standard Spark Plug line is designed to meet OEM specifications for secondary ignition components. This product line focuses on delivering reliable ignition with standard electrode designs and materials, such as copper and nickel, to maintain engine efficiency and durability. The Standard Spark Plug 3481 is part of this line, providing a balance of performance and longevity for BMW M5 vehicles.

Technical Details and Application

The NGK 3481 spark plug features a copper core center electrode that enhances thermal conductivity and durability, paired with a nickel tip and ground electrode core for consistent spark generation. The single ground electrode with a standard tip design supports stable ignition and combustion. Its resistance rating of 5000 ohms helps reduce radio frequency interference while maintaining proper spark energy. The flat seat and 12 mm thread diameter ensure compatibility with BMW M5 engines requiring this specific fitment.

Common Issues Addressed by NGK 3481 Spark Plug

• Misfires caused by worn or damaged spark plugs
• Reduced fuel efficiency due to incomplete combustion
• Engine hesitation or rough idling
• Difficulty starting the engine under various conditions
• Ignition system interference from improper resistance levels

Installation Notes and Tips

When installing the NGK Standard Spark Plug 3481, ensure the pre-gap size of 0.036 inches is maintained or adjusted according to BMW M5 manufacturer specifications. Use a 5/8 inch socket for proper torque application and avoid over-tightening to prevent thread damage. The non-removable nut terminal requires secure connection to the ignition wire. Inspect the spark plug seat and threads for cleanliness before installation to ensure optimal sealing and performance.

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Standard Spark Plug 3481 undergoes rigorous testing for electrical resistance, heat range, and material integrity. While specific warranty details are not provided, NGK products typically come with manufacturer-backed quality assurance to support their use in BMW M5 vehicles.