NGK 5809 Spark Plug

Overview of NGK Laser Platinum Spark Plug 5809

The NGK Laser Platinum Spark Plug 5809 is engineered for reliable ignition performance in Ford Focus vehicles. Designed with precision materials and specifications, this spark plug supports efficient combustion and consistent engine operation.

• Part Number: 5809 (Tr6ap-13)
• Compatible with Ford Focus models
• Center electrode tip made of platinum for durability
• Copper core center electrode for optimal conductivity
• Standard ground electrode with nickel core material
• Resistance rating of 5000 ohms to reduce electrical noise
• Pre-gap size of 0.052 inches for precise spark delivery
• Tapered seat type and 14mm thread diameter
• Hex size of 5/8 inch for installation with common tools
• Insulator height of 53.00 mm and reach of 0.708 inches
• Manufacturer heat range of 6 for balanced thermal performance

NGK Laser Platinum Spark Plug Product Line Details

The Laser Platinum Spark Plug line from NGK combines a platinum tip on the center electrode with a copper core to enhance spark efficiency and longevity. This design helps maintain stable ignition over extended use, making it suitable for secondary ignition systems in vehicles like the Ford Focus. The platinum tip reduces electrode wear, while the copper core improves electrical conductivity, contributing to consistent engine performance.

Technical Description and Features

This NGK spark plug features a single ground electrode with a standard design and nickel core material, providing durability and reliable grounding. The non-removable nut electrical terminal type ensures secure connection within the ignition system. With a resistance of 5000 ohms, the spark plug minimizes electromagnetic interference, supporting smooth engine operation. The tapered seat and precise thread diameter ensure proper fitment and sealing in the combustion chamber.

Applications and Problem Solving

• Compatible with Ford Focus models requiring part number 5809
• Addresses misfires caused by worn or damaged spark plugs
• Helps improve fuel efficiency by ensuring consistent ignition
• Reduces engine hesitation and rough idling
• Supports stable combustion to lower emissions

Installation Notes and Tips

• Verify compatibility with your specific Ford Focus model before installation
• Use a 5/8 inch socket wrench for proper tightening
• Check and maintain the pre-gap size of 0.052 inches if regapping is necessary
• Apply anti-seize compound sparingly on threads to prevent galling
• Torque to manufacturer specifications to avoid damage

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Laser Platinum Spark Plug 5809 undergoes rigorous testing for heat range, electrode wear, and electrical resistance. While specific warranty details are not provided here, NGK products typically come with manufacturer-backed quality assurance to support long-term use in compatible vehicles.