NGK 5459 Spark Plug

NGK Laser Platinum Spark Plug Overview

The NGK Laser Platinum Spark Plug 5459 is engineered for reliable ignition performance in Acura RL and TL models. Designed with precision materials and specifications, this spark plug supports efficient combustion and consistent engine operation.

• Part Number: 5459 (PFR5L-11)
• Compatible with Acura RL and TL
• Center Electrode Tip Material: Platinum for durability
• Center Electrode Core Material: Copper for optimal conductivity
• Ground Electrode Core Material: Nickel with standard tip design
• Resistance: 5000 ohms to reduce electrical noise
• Pre-Gap Size: 0.044 inches for precise spark delivery
• Thread Diameter: 14.00 mm with 0.75 inch reach
• Hex Size: 5/8 inch for installation with standard tools
• Electrical Terminal Type: Non-removable nut
• Seat Type: Flat for secure fitment
• Manufacturer Heat Range: 5

Detailed Product Description

The NGK Laser Platinum Spark Plug 5459 features a platinum center electrode tip that enhances wear resistance and maintains a stable spark over time. The copper core in the center electrode ensures excellent thermal conductivity, helping to dissipate heat efficiently. The ground electrode is made from nickel with a standard tip design and configuration, providing durability and consistent spark gap maintenance. With a resistance rating of 5000 ohms, this spark plug helps minimize electromagnetic interference with vehicle electronics. The pre-gap size of 0.044 inches is factory set to optimize ignition performance for Acura RL and TL engines. The flat seat type and 14 mm thread diameter with a 0.75 inch reach ensure proper fit and sealing in the combustion chamber.

About the Laser Platinum Spark Plug Line

The NGK Laser Platinum Spark Plug line is designed to offer a balance of durability and performance by combining platinum-tipped electrodes with copper cores. This design supports longer service intervals compared to conventional spark plugs while maintaining reliable ignition and fuel efficiency. The Laser Platinum series is suitable for vehicles requiring precise ignition components, such as the Acura RL and TL models compatible with part number 5459.

Applications and Problem Solving

• Compatible with Acura RL and TL models requiring PFR5L-11 spark plugs
• Helps resolve misfires caused by worn or degraded spark plugs
• Reduces engine hesitation and rough idling
• Improves cold start performance and throttle response
• Minimizes electrical interference affecting vehicle sensors

Installation Notes and Tips

• Use a 5/8 inch socket wrench for proper installation torque
• Verify the spark plug gap is set to 0.044 inches before installation
• Ensure the flat seat type matches the engine’s cylinder head design
• Do not overtighten to avoid thread damage; follow manufacturer torque specs
• Replace spark plugs in sets to maintain consistent engine performance

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards, ensuring reliable ignition and durability. The Laser Platinum Spark Plug 5459 undergoes rigorous testing for heat range, electrode wear, and electrical resistance. While specific warranty details may vary, NGK products typically include coverage against manufacturing defects when installed and used according to vehicle manufacturer guidelines.