NGK 4471 Spark Plug

NGK Laser Platinum Spark Plug 4471

NGK Laser Platinum Spark Plug 4471 is an OE-style ignition component built for BMW performance applications that call for precise gap control and stable spark delivery. It is a direct-fit spark plug for select BMW M3, M5, and M6 models, including 2006-2013 BMW M3, 2006-2010 BMW M5, and 2006-2010 BMW M6 applications listed below.

Key Features

• Laser Platinum center electrode tip for consistent ignition performance
• Copper center electrode core for efficient heat transfer
• Nickel ground electrode core material with standard ground configuration
• 5,000 ohm resistance for ignition system compatibility
• Flat seat design with 12.00 mm thread diameter and 5/8 hex size
• Pre-gapped at .036 in the product data; fitment notes specify 0.032 inch gap for listed BMW applications
• NGK part number LKR8AP, stock number 4471

Product Details

NGK’s Laser Platinum Spark Plug line is built around OE-level engineering for modern ignition systems. This plug uses a platinum tip on the center electrode, a copper core for heat management, and a standard dual-ground configuration to support reliable combustion in the specified BMW M3, M5, and M6 fitments. NGK is a long-standing OE supplier with broad coverage across domestic and import vehicles, and this part reflects that original-equipment focus. This part cross-references AMS Automotive 4471 for the same application.

Vehicle Fitment

• Fits 2010-2013 BMW M3, N/A. Notes: Gap 0.032"; Actual OE Manufacturer; 37,000 mi OE Mfr Recommended Service Interval; Laser Platinum Spark Plug.
• Fits 2010 BMW M5, N/A. Notes: Gap 0.032"; Actual OE Manufacturer; 37,000 mi OE Mfr Recommended Service Interval; Laser Platinum Spark Plug.
• Fits 2010 BMW M6, N/A. Notes: Gap 0.032"; Actual OE Manufacturer; 37,000 mi OE Mfr Recommended Service Interval; Laser Platinum Spark Plug.
• Fits 2008-2009 BMW M3, N/A. Notes: OEM recommends 0.032 inch gap for spark plug.; Laser Platinum Spark Plug.
• Fits 2006-2009 BMW M5, N/A. Notes: OEM recommends 0.032 inch gap for spark plug.; Laser Platinum Spark Plug.
• Fits 2006-2009 BMW M6, N/A. Notes: Gap 0.032"; Actual OE Manufacturer; 100,000 mi OE Mfr Recommended Service Interval; Laser Platinum Spark Plug.

Common Reasons for Replacement

• Engine misfire or rough idle
• Hard starting or extended crank time
• Reduced throttle response under load
• Worn or fouled spark plug electrodes
• Service interval maintenance on BMW M3, M5, or M6 ignition systems

Installation Notes

Verify the listed BMW application and confirm the required 0.032 inch gap before installation. Use the correct torque procedure for the cylinder head material and inspect ignition coils, boots, and wiring while servicing the plugs. The electrical terminal uses a non-removable nut, and the plug features a flat seat design.

Quality Assurance

NGK manufactures spark plugs with OE-focused standards and broad application coverage for automotive ignition systems. The Laser Platinum Spark Plug line is engineered for durability and consistent operation in the specified BMW applications.