Part #: 5794

NGK 5794 Spark Plug

Laser Iridium Spark Plug
6 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Laser Iridium Spark Plug
Fitment: Honda, Civic
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NGK Laser Iridium Spark Plug Overview

The NGK Laser Iridium Spark Plug 5794 is engineered for reliable ignition performance in Honda Civic vehicles. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

  • Iridium center electrode tip for enhanced durability
  • Copper core center electrode for improved conductivity
  • Standard ground electrode with nickel core material
  • Non-removable nut electrical terminal type
  • Pre-gap size of 0.032 inches for optimal spark
  • Flat seat type with 14mm thread diameter and 0.75 inch reach
  • Manufacturer heat range rating of 7
  • Hex size of 5/8 inch for installation

Detailed Features of NGK Laser Iridium Spark Plug 5794

The NGK Laser Iridium Spark Plug 5794 features a fine iridium tip on the center electrode, which provides a stable and efficient spark while maintaining long service life. The copper core center electrode enhances thermal conductivity, helping to dissipate heat effectively. The ground electrode is constructed with a nickel core and a standard tip design, ensuring consistent spark gap and ignition reliability. This spark plug has a resistance rating of 5000 ohms, which helps reduce electrical noise interference. The non-removable nut terminal type simplifies connection to the ignition system. With a pre-gap size of 0.032 inches and a flat seat design, it ensures proper sealing and spark gap consistency. The heat range of 7 is suitable for the operating conditions of many Honda Civic engines, balancing heat dissipation and combustion efficiency.

About the NGK Laser Iridium Spark Plug Line

The Laser Iridium Spark Plug line from NGK is designed to provide precise ignition performance through the use of iridium-tipped electrodes. This technology offers improved wear resistance and stable spark generation compared to conventional plugs. The 5794 part number within this line is tailored to meet the specifications required by Honda Civic models, ensuring compatibility and reliable engine operation.

Compatible Vehicles and Common Applications

This NGK Laser Iridium Spark Plug 5794 is compatible with Honda Civic models requiring a spark plug with a 14mm thread diameter, 0.75 inch reach, and heat range 7. It is commonly used to address issues such as:

  • Engine misfires or rough idling
  • Poor fuel economy due to incomplete combustion
  • Difficulty starting the engine
  • Reduced engine power or acceleration
  • Increased exhaust emissions

Installation Notes and Tips

When installing the NGK Laser Iridium Spark Plug 5794, ensure the spark plug gap is set to the recommended 0.032 inches if adjustment is necessary. Use a torque wrench to tighten the spark plug to the manufacturer’s specifications to avoid damage to the threads or improper sealing. The 5/8 inch hex size allows for standard spark plug socket use. Inspect the spark plug hole for debris before installation to prevent contamination.

Quality Assurance and Warranty

NGK spark plugs, including the Laser Iridium Spark Plug 5794, are manufactured to meet strict quality standards for durability and performance. The use of iridium and copper materials ensures long service life and consistent ignition. While specific warranty details may vary, NGK products typically come with a limited warranty against manufacturing defects. Refer to NGK’s official documentation for exact warranty terms.

BrandNGK
Part Number5794
PositionLaser Iridium Spark Plug
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialIridium
Electrical Terminal TypeNon-Removable Nut
Ground ConfigurationStandard
Ground Electrode Core MaterialNickel
Ground Electrode Quantity1
Ground Electrode Tip DesignStandard
Hex Size5/8
Insulator Height50.50
Manufacturer Heat Range7
Part NumberIFR7F-8DS
Pre-Gap Size.032
Reach.75
Resistance5000
Seat TypeFlat
Stock Number5794
Thread Diameter14.00

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
2011HondaCivic1.8LL4CNGN/AOEM recommends 0.032 inch gap for spark plug.; Laser Iridium Spark Plug
2010HondaCivic1.8LL4CNGN/AOEM recommends 0.032 inch gap for spark plug.; Laser Iridium Spark Plug
2009HondaCivic1.8LL4CNGN/AOEM recommends 0.032 inch gap for spark plug.; Laser Iridium Spark Plug
2008HondaCivic1.8LL4CNGN/AOEM recommends 0.032 inch gap for spark plug.; Laser Iridium Spark Plug
2007HondaCivic1.8LL4CNGN/AOEM recommends 0.032 inch gap for spark plug.; Laser Iridium Spark Plug
2006HondaCivic1.8LL4CNGN/AOEM recommends 0.032 inch gap for spark plug.; Laser Iridium Spark Plug

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

579498079-578BU

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.