NGK Laser Platinum Spark Plug (LKR8AP / 4471) – BMW E9x M3 (S65)

Ensure your S65 V8 is performing exactly as the BMW Motorsport engineers intended.

The NGK LKR8AP (Part #4471) is the original equipment (OE) specified spark plug for the BMW E9x M3 S65 engine. Engineered for the high-revving, high-output nature of the S65 platform, these Laser Platinum plugs provide the consistent ignition stability and thermal durability required to maintain peak engine efficiency.

Why Choose NGK Laser Platinum for your S65?

The S65 engine is a masterpiece of engineering that relies on precise, high-speed combustion to produce its signature power and throttle response. These NGK plugs are designed to meet those specific demands:

• OEM Reliability: Manufactured to strict BMW specifications, ensuring a perfect fit and seamless integration with your engine’s ignition system.

• Platinum Center Electrode: The high-grade platinum tip offers exceptional resistance to wear and heat, ensuring a consistent spark gap and reliable ignition over the life of the plug.

• Dual Earthed Electrode Design: Optimizes combustion stability and flame propagation, helping your V8 engine run smoothly from idle to the 8,400 RPM redline.

• Superior Heat Management: Features a high-purity alumina silicate ceramic insulator for maximum dielectric strength and thermal dissipation, protecting against fouling and pre-ignition.

• Interference Suppression: Built-in 5k Ohm resistor minimizes electromagnetic interference, protecting your vehicle's sensitive ECU and electronics.

Product Specifications

• NGK Part Number: 4471

• Short Code: LKR8AP

• Thread Size: M12 x 1.25

• Spanner Size: 16mm

• Electrode Type: Platinum Center Electrode / Dual Earthed Electrodes

• Application: BMW E90, E92, E93 M3 (S65 4.0L V8)

Performance Note

Servicing your spark plugs is one of the most critical steps in maintaining the longevity and responsiveness of the S65 engine. Whether you are daily driving your M3 or hitting the track, running fresh, factory-spec NGK plugs ensures your ignition system can keep pace with the demands of the S65’s high compression and aggressive timing maps.

Fitment: Sold individually. Please ensure you order the required quantity (8 per engine) for a complete service.

Need assistance with your M3 service or want to check stock availability? Contact our team today.