NGK 1643 Spark Plug

Reliable Ignition with NGK Standard Spark Plug 1643

The NGK Standard Spark Plug 1643 is engineered to provide consistent ignition performance for your Kia Soul. Designed with durable materials and precise specifications, this spark plug ensures efficient combustion and reliable engine operation.

• Resistance: 5000 ohms for stable electrical performance
• Ground Electrode Tip and Configuration: Standard design with a single nickel core electrode
• Center Electrode: Copper core with nickel tip for optimal conductivity
• Pre-Gap Size: 0.036 inches for precise spark gap
• Thread Diameter: 12.00 mm with 26.5 mm reach and flat seat type
• Hex Size: 5/8 inch for easy installation
• Electrical Terminal: Non-removable nut type
• Manufacturer Heat Range: 7, suitable for specific engine requirements
• Insulator Height: 50.00 mm for proper insulation and heat dissipation

About the NGK Standard Spark Plug Line

The NGK Standard Spark Plug line offers dependable ignition components designed to meet OEM specifications. The Standard Spark Plug 1643 is part of this line, providing a balance of durability and performance with nickel and copper electrode materials. This line is ideal for maintaining factory-level ignition quality in vehicles like the Kia Soul.

Technical Details and Performance

This spark plug features a nickel ground electrode and copper core center electrode, which together support efficient electrical conductivity and heat management. The 5000 ohm resistance helps reduce radio frequency interference, ensuring stable ignition signals. With a pre-gap size of 0.036 inches and a heat range of 7, the NGK 1643 spark plug is tailored to the combustion characteristics of the Kia Soul engine, promoting smooth starts and consistent power delivery.

Compatible Vehicles and Applications

• Compatible with Kia Soul models requiring part number 1643 or Lkr7e spark plugs
• Ideal for addressing ignition misfires and rough idling
• Helps resolve poor fuel economy related to spark plug wear
• Supports engine performance by maintaining proper combustion
• Useful for replacing worn or fouled spark plugs in secondary ignition systems

Installation Notes and Tips

When installing the NGK Standard Spark Plug 1643, ensure the spark plug gap is set to 0.036 inches if adjustment is necessary. Use a 5/8 inch socket for proper torque application and avoid over-tightening to prevent thread damage. The non-removable nut terminal type requires compatible ignition wires or boots. Always follow the vehicle manufacturer’s service manual for installation procedures.

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Standard Spark Plug 1643 undergoes rigorous testing for electrical resistance, heat range, and material integrity. While specific warranty details may vary, NGK products typically come with manufacturer-backed quality assurance to support long-term use in Kia Soul vehicles.