— Hotline and auto parts customer service
Monday - Friday: 7:00am - 10:00pm
Saturday 7:00am - 4:00pm

1.000.000 auto parts - find a suitable spare part for your car Example

0 Items

Spark Plug

Order cheap Spark Plug
Brand Spark Plug huge selection online
Replacement of Spark Plug: Video repair guide
How to change a spark plug SKODA FABIA 6Y TUTORIAL | AUTODOC

How to change a spark plug SKODA FABIA 6Y TUTORIAL | AUTODOC Top brands that produce Spark Plug: BOSCH, STARK, SACHS, SKF, VAN WEZEL, VALEO, LuK,...

Step by Step Video Tutorial for Do-it-yourself Auto Repair. Become an amateur mechanic with Autodoc.

Spark Plug for Top car maker
Spark Plug in brand quality: Top manufacturers
  • Original NGK Spark Plug
  • Original DENSO Spark Plug
  • Original CHAMPION Spark Plug
  • Original BOSCH Spark Plug
  • Original BERU Spark Plug
  • Original MAGNETI MARELLI Spark Plug
  • VEMO
  • DT
Top 8 Spark Plug bestseller
The best-selling replacement parts from the Spark Plug section. We have a large selection of spare parts from different brands for Spark Plug and further low-price offers in our range of parts

Learn more about Spark Plug - operation method, diagnosis, causes of faults and replacement intervals.

The spark plug is an important component of the ignition system. The function of this part is the formation of the spark needed to ignite the fuel mixture in the engine cylinder.

Types of spark plugs

By type of material used:

  • Brass or chrome-nickel.
  • Platinum.
  • Golden.
  • Silver.
  • Iridium.

According to the number of electrodes:

  • With two or more electrodes.
  • Plasma.
  • Flare.

According to heat rating:

  • Cold (20 and above).
  • Medium (17 to 19).
  • Hot (11 to 14).
The construction of spark plugs
  1. The case resistant to damage.
  2. Contact nut.
  3. Contact head made of steel wire.
  4. Isolator, which consists of a high percentage of alumina.
  5. Grooves. used for preventing the appearance of the spark on the surface.
  6. The central electrode.
  7. Side electrode - a supporting element to generate a spark.
  8. Sealant. Responsible for the mechanical and electrical connection of the contact head, the insulator and the center electrode.
  9. Two seals that provide gas-proof chamber.
  10. Heat-washer. Responsible for the transfer of heat from the combustion chamber to the body.
Operation of spark plugs

The service life of the part depends on many factors:

  • quality of parts;
  • operating conditions;
  • the condition of the cylinder-piston group;
  • feature of the mixture.

Replacement of sparks, under optimum conditions, will take place in 30-60 thousand kilometers. Regular sitting in traffic jams, bad mix, disruption of the power system reduce the period of operation. To extend the life of parts it is necessary to use high quality fuel and conduct regular inspection.

Spark plugs failure
  • cracks and chipped insulator;
  • wear of the working surface;
  • the appearance of traces of carbon deposits on the electrodes;
  • violation of the optimum value of the distance between the electrodes;
  • the destruction of the case.
Symptoms of spark plugs failure
  • increase in the percentage of CO in the exhaust gas;
  • increase in fuel consumption in the health of other systems;
  • when idling strong vibration of the engine appears;
  • complicated start of the engine (it does not work when the starter is started or after a long work of starter);
  • a significant loss of engine power;
  • the engine does not reach the desired RPM;
  • wet spots on the sparks;
  • engine wobbles.
Causes of spark plugs failure
  • the discrepancy of the glow;
  • mechanical damage of the insulator;
  • the use of low-quality fuel;
  • badly worn motor;
  • continuous operation of the motor at idle;
  • excessive load on the engine.
Replacing spark plugs

Repair of spark plugs is not carried out. If at the time of diagnosis deposits, traces of oil, dark deposits are discovered replace the complete set.

The plan of action to replace the spark plugs:

  1. Lift the hood and secure it.
  2. By means of the compressor clean the surface of the engine from dust and debris.
  3. Release access to the spark plug wells by disconnecting the high-voltage wires.
  4. Using the spark plug wrench, unscrew the parts.
  5. Inspect wells for oil or debris.
  6. Install new spark plugs, tighten with the wrench.
  7. Connect the high-voltage wires.
  8. Start the engine to avoid detonation.
Advantages of working with AutoDoc
  • We have a large selection of products.
  • for each part we offer a guarantee of quality.
  • Order and pay for goods in a few clicks.
  • You can always save money by taking advantage of discounts or special offers.
  • In any situation - expert assistance of technical support team.
Buy online at discount on special offers and promotions - TecDoc Inside

The data shown here, especially the complete database, may not be copied. It is strictly prohibited to duplicate the data and database and distribute the same, and/or instruct third parties to engage in such activities, without prior consent from TecAlliance. Any use of content in a manner not expressly authorized constitutes copyright infringement and violators will be prosecuted.

Service customers international
Order automobile spares online saving up to 85 % and moreService customers for Great Britain - Hotline and customer service

© 2017 AUTODOC Online-Shop

New simplified site search will make it easier for you to find the right part. Search for spare parts.

Request type Example
Car Spare Parts Brake Rotors / Brake Discs
Car Spare Parts + Car parts maker Oil Filter JAPANPARTS
Car Spare Parts + Automaker Spark Plug NISSAN
Car Spare Parts + Number of article Windscreen Wipers / Window Wipers SS-X30C
Number of article SS-X45S
Number of article + Car parts maker SS-X55C JAPANPARTS
OEN 80 33001 16053 6
OEN + Car parts maker 80 33001 16067 3 JAPANPARTS
loader Please, wait...