TOP 9 best spark plugs for Lada Granta 8 valves - which spark plugs to put on the Lada Granta

The Lada Granta with an 8-valve engine is one of the most popular vehicles in the domestic automobile industry. This is not surprising, because the machine is easy to maintain, visually attractive and affordable. In order for a car to serve for a long time without malfunctions, regular and correct maintenance is required, one of the items of which is changing the spark plugs. This is one of the important elements of the motor. It is the spark plugs that directly influence ignition and other important processes. That is why their purchase should be approached with all responsibility. So that you can make the right choice, we will provide professional advice on which spark plugs are best for the Lada Granta 8-valve. In addition, we have compiled for you the TOP 9 best spark plugs, from which you can choose the right option for yourself.

The best spark plugs for Lada Granta

Comparative characteristics

The comparative characteristics of the models will help you choose spark plugs from our rating.

Table. Comparative characteristics of spark plugs.

Model	Thread size	Standard thread length, mm	Wrench head size, mm	Electrode material	Gap between electrodes, mm	price, rub.
DENSO 4604 K20TT	M14	19	16	Nickel alloy	1	From 145
NGK BPR6ES	M14	19	20.8	Nickel alloy	0.9	From 140
BERU Z121	M14	19	16	Nickel alloy	1	From 340
NGK 4919 BCPR6EIX-11	M14	19	16	Iridium, nickel alloy	1.1	From 490
Bosch Group, A17DVRM 0.7 4 pcs.	M14	19	20.8	Nickel alloy	0.7	From 205
HOLA BH7CR11	M14	19	20.8	Nickel alloy	1	From 250
WEEN 121-1370	M14	19	20.8	Nickel alloy	3	From 440
EYQUEM RC62LS	M14	19	20.8	Nickel alloy	0.65	From 130
Lada-Image CJSC 21110370701000	M14	19	20.8	Nickel alloy	3	From 70

NGK BPR6ES

Price: from 260 rubles.

NGK BPR6ES is a high-quality spark plug, suitable for installation in both foreign-made cars such as Nissan, Chevrolet, Daewoo, and domestic LADA (VAZ) cars. The central and side electrodes are made of high-quality nickel alloy, capable of withstanding impressive loads and maintaining their performance properties even in the most difficult conditions.

Pros:

versatility of use;
ensures instant engine starting;
impressive resource;
resistance to temperature changes and changes in external operating conditions;
availability.

Minuses:

It may be difficult to dismantle if used for a long time.

Types and characteristics of spark plugs

There are several types of spark plugs. First of all, the elements are classified depending on the dimensions of the hex key:

SZ turnkey 16 mm;
SZ turnkey 21 mm.

The length of the threaded part is 19 and 26.5 mm, respectively.

In addition, these elements are distinguished by length and thread pitch. Depending on these parameters, SZ are 10, 12, 14 and 18 mm, the thread pitch of which is 1.25.

One of the main parameters for candles is the heat rating. In this case, its indicator is seventeen. It is this parameter of the product that allows the part to withstand glow ignition, which causes engine detonation, which causes its breakdown.

Spark plug heat number

According to the heat index, spark plugs are classified as follows:

cold – above 20;
average – from 16 to 19;
hot – from 11 to 14.

Thus, only medium SZ should be installed in Lada Granta cars. The use of cold elements leads to problems with starting the engine, and hot elements lead to detonation and, as a consequence, engine failure.

Attention! In some systems, the heat indicator may have different numbers. The main thing is that it is average.

Hammer F6TC

Price: from 145 rubles.

Hammer F6TC are inexpensive spark plugs with one side electrode and a high-quality seal in the form of a flat gasket. Suitable for installation in domestic cars, as well as some foreign cars. There should be no problems with installation, since standard fasteners and threads are used for fixation. The model has a heat rating of 7. The gap between the electrodes is 0.4 mm.

Pros:

low cost;
good workmanship;
convenient installation in the engine;
versatility of use;
ease of replacement.

Minuses:

some copies quickly fail.

What kind of spark plugs are installed at the factory?

At the manufacturer's factory, spark plugs are installed in the engine, the heat value of which is seventeen. The manufacturer recommends that vehicle owners install products with this indicator in the future.

If we talk about which spark plug manufacturer AvtoVAZ prefers, then there is no clear preference. Different conveyors use different models.

However, most car enthusiasts claim that they purchased a car with A17DVRM spark plugs from the Saratov manufacturer ZAZS OJSC.

Most car enthusiasts claim that they purchased a car with A17DVRM spark plugs

DENSO W20EPR

Price: from 860 rubles.

DENSO W20EPR are reliable Japanese spark plugs, the main feature of which is the U-shaped groove of the side electrode. It significantly increases flame spread, allows fuel to be burned more thoroughly and significantly reduces emissions. Thus, good gasoline savings are observed. The spark plug includes one side electrode made of nickel alloy, which does its job well over a long period of time.

Pros:

reliable Japanese manufacturer;
durability;
excellent performance parameters;
the ability to reduce fuel consumption when installing these spark plugs in the engine.

Minuses:

quite high cost;
The fuel saving system does not always work.

Rules for replacing spare parts

When replacing spark plugs, you should not rely on the mileage of the vehicle. The fact is that one part can withstand 100,000 km, while the other cannot withstand 20,000. This indicator depends both on the condition of the engine and on the spark plug itself. For this reason, there is no exact data on at what stage of a car’s mileage it is better to change these parts.

Experienced Lada Granta vehicle owners recommend performing the appropriate manipulations after the second oil change. The fact is that low-quality fuels and lubricants can lead to premature wear of parts. In addition, no one is safe from purchasing counterfeit candles instead of original ones. For this reason, it is best to play it safe and change the corresponding elements after every second oil change.

In addition, it is recommended to perform the procedure earlier than the specified time if the following problems occur:

long rotation of the starter when starting the engine;
the engine does not start or starts after a long delay;
when the car is warming up or moving in neutral gear, uncharacteristic engine sounds occur;
increased gasoline consumption;
if you unscrew the spark plugs, they will be wet or filled with gasoline;
a decrease in car engine power, which becomes especially noticeable when the vehicle moves uphill.

Rules for replacing spark plugs

CHAMPION RN9YC

Price: from 280 rubles.

CHAMPION RN9YC is a mid-range spark plug that is easy to install in your engine. The element fits firmly into a standard seat and allows you to maintain engine operation at the required parameters for a long time. Spark plugs wear out slowly and can serve faithfully for several years without any problems. Moreover, this applies even to those cases when operation is carried out in difficult conditions.

Pros:

unpretentiousness to operating conditions;
durability;
ease of installation into the engine;
ensure uniform and stable combustion.

Minuses:

high price;
It does not work very stable with some engine models.

What does carbon deposits on NW indicate?

If a light brown soot appears on the NW, then there is no reason to worry. This is a normal process and does not indicate any failure. If the deposit has a different shade, then this indicates a malfunction. By its color you can determine what exactly happened:

red and white soot indicates the use of low-quality gasoline;
black tint indicates leakage of lubricants;
loose soot of a dark shade indicates the need to change fuels and lubricants;
an oily coating indicates that lubricant has entered the combustion chamber;
a red tint of soot may indicate a breakdown of the gas converter;
an ashen color indicates problems with the valve stem seals.

Attention! If the spark plugs have not only plaque, but also any damage, then it is recommended to replace them.

Video - Diagnostics by candle color

Let's sum it up

Taking into account the above information, it becomes clear that choosing Lada Granta spark plugs for an 8-valve engine is quite simple. You can use both original solutions supplied by the manufacturer and analogues from other manufacturers.

The main thing is to choose the spark plugs correctly, that is, taking into account the basic parameters for an internal combustion engine of this type (heat rating, physical dimensions, etc.). It is also important to buy spark plugs from trusted sellers to eliminate the possibility of purchasing a fake.

We also recommend reading the article on how to determine the condition of the engine by spark plugs. From this article you will learn how to diagnose an engine using spark plugs, as well as what nuances you should pay attention to as part of such a check of the condition and quality of operation of the power unit.

Finally, we note that the above basic rules and recommendations are also relevant for many other cars with a similar type of engine (for example, selecting Grant 16 valve spark plugs and replacing them.) Only the parameters of the spark plugs themselves will differ, and there may also be some individual nuances in terms of replacement on a motor of one type or another.

Spark plug replacement procedure

To change spark plugs correctly, you need to proceed as follows:

Turn off the car engine and wait until it cools down.
Remove the cap СЗ and move it to the side.

Remove the SZ cap and move it to the side
Take a clean piece of cloth or a brush and carefully brush the area around the element you are replacing.

We take a clean piece of fabric or a brush and carefully treat the area around the element being replaced with it.
Unscrew the part using a special key.

We unscrew the part using a special key for this.
Install the new element and tighten it.

Insert a new element and tighten it

Video - Changing spark plugs on a Lada Granta

How to get rid of unnecessary details

Any 16-valve engine has a plastic protection installed on top. But the protective cover can always be removed by simply pulling the part up. By the way, the rubber supports on the covers of motors 21126 and 21127 will be the same (see figure).

Cover and 4 supports, motor 21126 Cover and the same supports, motor 21127

It is recommended to unscrew the filler plug, but you can leave it in place. The lid must be pulled up, snapping off the supports one by one.

Practicing on motor 21127 Four supports snapped off

Everything looks more complicated than it actually turns out to be. Try it!

Actions before replacement

First of all, we recommend disconnecting the negative terminal of the battery. To do this you need a key “10”. Then disconnect the ignition coil connectors. The appearance of one connector is shown below.

By pressing the latch, the connector is pulled up

Next, taking a TORX E-8 wrench, unscrew the screw securing the coil.

Need a TORX spanner

The coil itself can be pulled out by holding it by the connector body.

The connector will not break, try it

Finally, the engine is ready to replace the spark plugs. This process is discussed further.

Do not allow dust to get into the spark plug well! If necessary, you can use a can of compressed air.

Rules for choosing candles

When choosing a SZ, you should focus on such points as:

turnkey dimensions;
potassium number indicator: the optimal option is 17, but other values are acceptable, the main thing is that the potassium value is average;
distance between electrodes - in this case it is best to choose spark plugs with a gap of up to 1 mm;
thread dimensions;
type of electrodes - it is best to give preference to nickel elements.

So which spark plugs should you choose for a Lada Granta with an 8-valve engine? When purchasing, it is recommended to take into account the specified characteristics, as well as the manufacturer and cost of spare parts. So, if you need inexpensive spark plugs, which are most often installed in cars at the factory, pay attention to the Bosch Group model, A17DVRM 0.7 4 pcs. Among the budget elements, we can also recommend the Lada-Image ZAO 21110370701000 option. If the price does not matter to you and you require SZ with a long service life, take a closer look at the NGK 4919 BCPR6EIX-11 model. You can choose any product from our TOP that suits you in terms of technical characteristics and price.

Video - How to choose the right spark plugs

HOLA BH7CR11

Price: from 490 rubles.

HOLA BH7CR11 - elements from a not-so-famous Dutch brand, which nevertheless managed to establish themselves on the market. These are durable and high-quality spark plugs that guarantee instant engine starting under any conditions and make it possible to increase the flammability of fuel for subsequent fuel economy. Most often they are supplied in sets of 4 pieces, but if desired, you can also find one candle on sale.

Pros:

budget cost;
are highly flammable;
have a beneficial effect on engine performance;
opportunity to save fuel.

Minuses:

a little-known brand of car spark plugs;
not always easy to find on sale.

Voting for the best spark plugs for Lada Granta

Which spark plugs would you choose or recommend at Grantu?

Lada-Image CJSC 211103707010

21.56 % ( 36 )

EYQUEM RC62LS

2.40 % ( 4 )

WEEN 121-1370/KMR6C11

2.99 % ( 5 )

HOLA BH7CR11

0.60 % ( 1 )

Bosch Group, A17DVRM 0.7 4 pcs.

24.55 % ( 41 )

NGK 4919 BCPR6EIX-11

10.78 % ( 18 )

BERU Z121

1.80 % ( 3 )

NGK BPR6ES

19.16 % ( 32 )

How to check Grant's high-voltage wires (HPV)

After replacing the spark plugs, you can check the high voltage wires (high voltage wires) that go to the spark plugs. This is necessary in order to make sure that the wires do not “pierce” and the spark on the spark plugs will be constant.

To check we need a tester. We switch it to ohmmeter mode and begin the test. We measure the resistance of the wires; for serviceable wires, the resistance (depending on the length) should be in the range of 3.5-10.0 kOhm. No more than 15 kOhm. If your measurements exceed these values, then such wires should be replaced. They need to be replaced as a set, 4 pieces at once.

Sources used:

https://lada.i-love-mycar.com/svechi-dlja-granta-8-kl/
https://carfrance.ru/menyaem-svechi-na-lada-granta-s-16-klapannym-dvigatelem/
https://obzor-expert.com/kakie-svechi-zazhiganiya-luchshe-dlya-lada-granta-8-klapannaya-top-9-luchshih-svechej-zazhiganiya-vidy-i-pravila-zameny-zapchastej/
https://x7.by/remont/207-zamena-svechei-zazhiganija-na-lada-granta-16-klapanov-svoimi-rukami.html
https://remontautomobilya.ru/kak-zamenit-svechi-zazhiganiya-na-grante-na-8-i-16-kl-motore.html

Gap adjustment

Spark plug maintenance involves cleaning and adjusting the spark gap between the electrodes. It must be taken into account that it increases to the maximum permissible distance. During operation, metal parts wear out. The central straight electrode is rounded, and a depression is formed on the side curved plate. To prevent interruptions in spark formation, it is necessary to adjust the size of the spark gap. It is set with a probe within 1-1.5 mm. The feeler plate fits flush into the correctly set gap.

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