Service life and interchangeability of NGK spark plugs
Tips for motorists

Service life and interchangeability of NGK spark plugs

Consumables in a blue box (Iridium IX) are suitable for older cars. In this series, the manufacturer uses a thin iridium electrode, so the devices practically do not miss ignition, are effective at any time of the year, reduce fuel consumption and improve vehicle acceleration.

During scheduled maintenance of the car, it is necessary to check the condition of the candles. And after 60 thousand mileage, these consumables are recommended to be changed. The service life of NGK spark plugs depends on the intensity of travel and operating conditions. Untimely replacement threatens with engine malfunctions, loss of performance and increased fuel consumption.

Parameters of spark plugs "NZhK" France

These parts are manufactured by NGK Spark Plug Co. The company is headquartered in Japan, and factories are located in 15 countries, including France.

Service life and interchangeability of NGK spark plugs

NGK Spark Plug Co

Устройство

Spark plugs are needed to ignite the air-fuel mixture. All models work on a similar principle - an electric discharge occurs between the cathode and anode, which ignites the fuel. Regardless of the design features, all candles function the same. In order to correctly choose a candle, you need to know the specific brand of car, use online catalogs, or entrust the choice to a technical center specialist.

Features

Candles for engines are produced with two types of markings:

The 7-digit character number used for the NGK SZ encrypts the following parameters:

  • hexagon thread diameter (from 8 to 12 mm);
  • structure (with a protruding insulator, with additional discharge or small size);
  • interference suppression resistor (type);
  • thermal power (from 2 to 10);
  • thread length (from 8,5 to 19,0 mm);
  • design features (17 modifications);
  • interelectrode gap (12 options).

The 3-digit code used for metal and ceramic glow plugs contains the information:

  • about the type;
  • incandescence characteristics;
  • series.

Candles can be distinguished visually, because the design of the models is different:

  • by type of fit (flat or conical shape);
  • thread diameter (M8, M9, M10, M12 and M14);
  • cylinder head material (cast iron or aluminium).

When choosing consumables, pay attention to the packaging.

SZ in yellow boxes is used in assembly line and installed on 95% of new cars.

Black and yellow packaging (V-Line, D-Power series) is applicable for products made from precious metals and using the latest technologies.

Consumables in a blue box (Iridium IX) are suitable for older cars. In this series, the manufacturer uses a thin iridium electrode, so the devices practically do not miss ignition, are effective at any time of the year, reduce fuel consumption and improve vehicle acceleration.

The silver packaging and the Laser Platinum and Laser Iridium series belong to the premium segment of the NLC. They are designed for modern cars, powerful engines, as well as for economical fuel consumption.

Service life and interchangeability of NGK spark plugs

Spark Plugs ngk Laser Platinum

LPG LaserLine in a blue box are designed for those who decide to switch to gas.

Red packaging and the NGK Racing series are chosen by lovers of speed, powerful engines and harsh car operating conditions.

Interchangeability table

The manufacturer's catalog contains information on the correct selection of candles for each modification of the car. Consider the options for purchasing consumables using the example of Kia Captiva in the table

ModelModel of a candle installed on a factory conveyorIt is recommended to install when transferring the engine to gas
Captiva 2.4BKR5EKLPG 1
Captiva 3.0 VVTILTR6E11
Captiva 3.2PTR5A-13LPG 4

From the catalog of the manufacturer NGK you can find out about the interchangeability of consumables of different brands. For example, BKR5EK, which is installed on Captiva 2.4, can be replaced with analogues from the table:

NGK Replaceability
SKUСерияBOSCH batteries and motorsCHAMPION
BKR5EKV lineFLR 8 LDCU, FLR 8 LDCU +, 0 242 229 591, 0 242 229 628OE 019, RC 10 DMC

All NZhK consumables are manufactured according to industry standards. Therefore, instead of SZ of this brand, you can purchase analogues from the same price segment (for example, Denso and Bosch) or something simpler.

When choosing, you need to remember: the worse the spare parts, the less likely it is to start a car in the winter. Do not forget to check the service life of consumables: original NGK spark plugs have more than 60 thousand km.

Authentication

Counterfeit NLC products can be visually identified by the following features:

  • poor quality packaging and labeling;
  • no holographic stickers;
  • low price.

A close examination of a homemade automotive spark plug shows that the o-ring is very weak, the thread is uneven, the insulator is too rough, and there are flaws on the electrode.

Replacement interval

Candles are checked during scheduled maintenance and changed at a run of more than 60 thousand km. If you install the original, then its resource is enough to start the car even in the coldest winters.

See also: The best windshields: rating, reviews, selection criteria

Life time

The warranty period for candles with active use is 18 months. But consumables are stored for less than 3 years. When buying, pay attention to the marking of the production date and do not purchase last year's SZ.

NGK spark plugs do an excellent job of starting the engine, with a lifespan long enough to last several seasons.

TIME FOR REPLACING SPARK PLUGS

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