What is the difference between marking iridium candles ik vk. Denso spark plugs: the right choice for your vehicle. Candles Denso selection by car

Owners of vehicles with carburetor or injection engines they know how important it is to regularly monitor the condition of the spark plugs and, if necessary, replace them. After all, it is the spark plugs that ensure the correct start of the engine and its stable work. In previous articles, we looked at how to select spark plugs, and also described in detail the key characteristics of the products. The topic of today's article will be the marking of spark plugs and this information help car owners, according to the specific characteristics of the power unit, choose spark plugs. Let's focus on the products of the most well-known manufacturers, which can be used for cars of Russian and foreign brands.

Today on sale are SZ domestic and foreign manufacturers, so motorists have practically no problems with their choice.

Spark plug

The only thing that can become a small obstacle is the existing product differences. AND distinctive characteristics spark plugs are:

Manufacturing company— Bosch, Denso, Champion, NGK and others.
Design features one or more electrodes.
heating value.
Gap at the electrodes- the point where the actual ignition occurs working mixture.
Electrode material– Alloy steel with nickel/manganese, copper, iridium, platinum.
Connecting dimensions spark plugs - the length / pitch of the threaded element, the parameters of the hexagon (determine the parameters of the key used during installation / dismantling).

In other words, without certain knowledge, choosing candles is not so simple. Of course, there is an option to take candles already installed in the car to the store, but this is not always convenient. Below we will give a decoding of the markings of the most popular spark plugs among car owners, as well as a table of their interchangeability, which will help you choose the right sample in the absence of SZ prescribed by the manufacturer. So, for example, Russian candles A-17-DV are placed on the VAZ "five", while they can be replaced with products from other manufacturers: L 15 Y (Brisk), BP 6 ES (NGK), W 7 DC (Bosch) or 64 ( autolite). In principle, this is the same product, differing only in marking. And what do the marks applied to the spark plugs mean and how to navigate them - we'll talk further.

Table of heat values

domestic devices

Russian spark generators for all types of transport meet the international regulation ISO-MS-1919, which allows them to be replaced imported analogues on key features. In addition, labeling of products manufactured by Russian enterprises provided for by regulation OST-37.003.081. The marking of domestic devices should be deciphered by alphanumeric characters.

We read the designation of Russian SZ

So, thread parameters on the body are marked the first letter "A", which hides the parameters M14x1.25 - the value that distinguishes spark plugs of the "standard" type. Marking devices with the symbol M assumes thread parameters M18x1.5 (mounting/dismantling key 27).

An alphabetic character is followed by a numeric heat indicator- the larger this value, the lower temperature regime necessary for the formation of a spark. The heat index of domestic candles is in the range of 8-26. The most common candles with indicators 11/14/17. Marking SZ according to the glow value divides products into “cold” ones installed on motors with high power or "hot".

Marking of Russian candles

Consider an example of what values \u200b\u200bare included in the marking of SZ Russian production . Let's take a product marked with code A 17 DV - this is a candle with a classic thread, a glow index of 17, a thread length (D) of 9 mm (if this value is less, then the symbol is not affixed in the marking), the symbol B usually denotes an insulator with a protruding thermal tip.

If the product label contains the letter P(A17 DVR), this means that the head electrode is equipped with a noise suppression resistor. The letter M indicates the use of copper materials with high heat resistance, which contributes to the creation of a shell on the head element.

In the designation AU 17 DVRM the letter Y indicates the increased size of the hexagon(16mm instead of 14). When still larger size hexagon (19mm) - the letter M - AM 17 B is affixed to the marking.

Examples of possible designations of domestic products with decoding

A 11- basic product with thread M14x1.25, hexagon 20.8mm, glow index 11, thread length 12.7mm, thermal cone not protruding, without resistor, head electrode made of heat-resistant material.

A 11 R- analogue of the previous sample, having a built-in resistor.

Spark plug parameters

A 17 DV- basic type product with thread M14x1.25, hexagon 20.8mm, glow value 17, thread size 19mm, there is a thermal protruding cone, without resistor, head electrode made of heat-resistant alloy.

A 17 DV-10- a product similar to the previous sample (A 17 DV), which has an increased spark gap(0.7mm - in the basic design this value is 0.5mm).

AU 17 DVRM- basic type element, thread M14x1.25, hexagon 16mm, glow value 17, thread size 19mm, thermal cone protrudes from the body, with a resistor and a head electrode in a heat-resistant shell made of copper alloy.

Imported devices

Imported SZ designations are applied by analogy with Russian, but using other alphanumeric characters, which may confuse car owners. Although, in order to simplify the choice, information is applied to the packaging on which vehicles they can be used on. In addition, the marking of imported devices can be deciphered according to special tables of substitutability. But let's dwell on the samples most in demand among car owners in more detail. Consider, for example, the labeling of devices from leading brands.

Assortment of imported candles

Candles NGK

Company NGK (Japan) is called the leader in the production of SZ. Its products are recognized as the highest quality and reliability. Are marked spark plugs thus:

domestic devices A 11 are analogous to products B 4 H;
And 17 DVRs are being replaced by BPR 6 ES.

The marking of NGK products is deciphered quite simply. In particular, B4H:

the letter symbol B prescribes the diameter and pitch of the thread, in this case this is M14x1.25, other possible designations are A / C / D / J;
the digital symbol 4 indicates the heat value - this indicator varies in the range of 2-11;
the letter H indicates the thread size (12.7mm).

Marking candles NGK

The designation BPR 6 ES indicates that this product is equipped with a standard thread, a projection insulator (P), a resistor (R), an incandescence factor of 6, a thread size of 17.5mm (E), the S symbol indicates the individual properties of the product.

The presence of a digital character at the end (usually through a hyphen) indicates that the electrodes have a gap of this size.

Bosch spark generators

Bosch products need no introduction.. Let's say the article WR 7DC has the following decoding:

symbol W - thread with standard parameters (14);
symbol R - the presence of a resistor that prevents interference;
digital symbol 7 - incandescent value;
letter D - thread size (19mm);
the letter C is a copper alloy electrode, other possible designations are O (ordinary alloy), S (silver element), P (platinum).

Products marked WR 7DC are an analogue of domestic candles A 17 DVR, which work with engines of VAZ cars.

Marking candles Bosch

Czech devices Brisk

Since the 35th year of the last century, the enterprise has been producing SZ, which are in constant demand among our motorists.

The article on the candles of this manufacturer, for example, DOR 15 YC has the following decoding:

the letter D denotes the thread size "standard" (1.25mm), oriented wrench 14, with a body size of 19mm;
the letter symbol O indicates a special product design, made according to ISO regulations;
the letter R indicates the presence of a resistor, and the symbol X indicates the ability of the resistance of the electrodes to form carbon deposits;
the number 15 is an incandescent indicator, which can vary in the range of 8-19 (in this case, the index 13 is not affixed by the manufacturer);
the letter Y denotes a protruding arrester;
the symbol C indicates the head electrode made of copper;
1 (mm) - gap at the electrodes.

Candles

Beru devices

Manufacturer Beru (Germany) produces candles and other premium quality components. Products are marked, for example, as 14 R-7 DU, which stands for:

14 – thread size (14×1.25mm);
R - there is a resistor;
7 - heat coefficient (interval 7-13);
D - thread size (19mm) with a gasket-seal for a cone;
U - head electrode made of copper + nickel alloy.

Using another designation as an example - 14 F-7 DTUO - we will explain that the marking changes somewhat: the values \u200b\u200bof SZ are the standard, and the nut is smaller than the installation space (F), can only be used in "low-power" motors with a seal (T), the head element of the product reinforced (O).

Beru candles

Denso devices

This company labels its products like this - SK 16 PR-A 11, which stands for:

S - the head electrode with a diameter of 0.7 mm from iridium, the electrode on the side is equipped with a platinum overlay;
K is the diameter of the hexagon;
16 - heat coefficient;
Р – protruding by 1.5 mm head electrode;
R - there is a resistor;
A - parameter specifically for this modification of the SZ;
11 - gap size.

Note that letter designations on Denso devices may vary depending on the product series.

Candles Denso

Devices

Products of this brand signed by analogy with other candles. For example, the designation RN 9 BYC 4 is:

R - the presence of a resistor (if the symbol E is indicated - the product is equipped with a screen, O - a wire resistor);
N - standard thread size (10mm);
9 - glow value (interval 1-25);
BYC - head electrode made of copper with two side elements (products of the "standard" design are marked with the symbol A);
4 - gap at the electrodes.

Candles Champion

Types of candles

Standard products are two-electrode plugs equipped with side and head electrodes. Today such instances are more common and are placed on domestic cars . Also in demand are products with several electrodes, differing in the number of side elements. The period of operation of such products is much longer than that of standard SZ, while it is not affected by the heat index. Flare and prechamber design products are less common, since they are not installed on all engines.

Work period

Brand and modification of SZ affect the duration of the candles. For example, nickel devices will last approximately 30,000 km. Products made of platinum are used much longer term- approximately 80 thousand km.

iridium products, depending on the design features of the electrodes, both 70,000 and 120,000 km “live”. The resistance of SZ is not affected by the metal used in their production.

Platinum/iridium electrodes are resistant to deposits, so the ignition of the working mixture is better.

(SZ) are an integral element of the ignition system of any car. Accordingly, if you want them to last for a long time, the choice of these components must be approached with all responsibility. In this article we will talk about what candles are. Denso ignition what features they have and how the selection is carried out by car.

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SZ features

So, if you decide to purchase Denso ik20, k20tt, w20tt, k16tt, then before you make a selection for your car, we recommend that you familiarize yourself with the features of the product. It should be noted that Japanese brand Denso is the first to patent the TwinTip technology used in the TT range with a nickel center electrode with a reduced diameter of 1.5 mm. In addition, the size of the ground electrode was also reduced to a diameter of 1.5 mm.

So, let's move on to the features that the original iridium spark plugs Denso ik20, k20tt, w20tt, k16tt and others with different glow ratings have, unlike fakes:

SZ models ik20, k20tt, w20tt, k16tt and others with improved sparking actually achieve maximum efficiency iridium spark plugs. However, the production of such SPs takes less money, since they do not use precious materials.
According to the manufacturer, the SZ ik20, k20tt, w20tt, k16tt and other models are characterized by improved performance at significantly lower costs.
Nickel TT devices ik20, k20tt, w20tt, k16tt and others require less voltage to start the power unit. Accordingly, the engine can be started much faster even at the lowest temperatures.
As a result, the models ik20, k20tt, w20tt, k16tt and others have a thin central electrode with a diameter of 1.5 mm (standard - 2.5 mm). Accordingly, the resulting spark is more powerful, the efficiency of its work is higher. And this, you see, is very important, especially at low temperatures.

Range

Range Denso includes many products with different heat ratings.

We are talking about both iridium and platinum, as well as nickel SZ:

Nickel (Nickel) TT;
Iridium TT;
Standard;
Platinum Longlife;
Iridium Power;
iridium racing;
Iridium Tauf.

Advantages and disadvantages

Below are the main advantages and disadvantages of iridium and nickel SZ models ik20, k20tt, w20tt, k16tt and others with excellent heat rating. The information below is based on official data as well as consumer reviews.

Advantages that will allow you to make a choice:

Reducing the level of emissions into the atmosphere. As a result of the improved sparking in ik20, k20tt, w20tt, k16tt and other models, the combustion process itself is more stable. Accordingly, the operation of SZ ik20, k20tt, w20tt, k16tt and other options can reduce fuel consumption, as well as reduce CO and CH emissions into the atmosphere.
Due to the improved sparking of CZ with a good glow number, the ignition index is improved. As a result, candles ik20, k20tt, w20tt, k16tt and others from the Denso brand allow you to ignite even the most lean combustible mixtures. Accordingly, misfiring in the system will occur much less frequently when compared with other SZ or fakes.
If you choose originals with an excellent heat value, instead of a fake or standard SZ, then during normal operation of the sludge unit, you can save five percent on fuel consumption - gasoline, diesel or natural gas.
If your car is running natural gas, then Iridium candles with a high glow number of the Tauf line (Tough) are suitable for you. Such SZ are equipped with an additional platinum tip on the side electrode. In addition, they are characterized by high wear resistance, which is especially important for power units operating on gas. It should be remembered that the temperature of the internal combustion engine on gas is higher. Accordingly, if the engine runs on gas, then the fuel mixture will burn at elevated temperatures.
Possibility of self-cleaning. Usage modern technologies allows candles to self-clean when long-term operation, so the problem of soot is no longer terrible (the author of the video is Hands in Oil).

Disadvantages:

Lots of fakes. In fakes, the glow number differs from the original. Accordingly, the owner of a car running on any fuel, including gas, will not be able to experience all the benefits of a Denso product.
If the product itself is not original, its service life will be lower. However, car owners of cars running on diesel and gas periodically write in reviews that the service life of the originals is less than stated.
High price. But in most cases, this is due to high quality.
On some new SZs, the gap was not initially set to work. This is confirmed by the reviews of motorists.

Marking

If you want to make the right selection of iridium candles for your car, it will be useful for you to familiarize yourself with the marking and decoding of the symbols, which are given in the table below:

Marking and interpretation of the designations of Denso spark plugs

How to distinguish the original Denso from a fake?

So, in order to purchase original SZ for your car, you need to know exactly how not to fall for a fake. There is a method for checking appearance, as well as internal structure devices.

A visual aid - what is the difference between Denso originals and fakes

Of course, when buying, you will make a visual inspection:

On fakes, the contact terminal of the candle has a glossy surface, while on the originals it is more matte.
Unlike originals, Denso branded print on fakes can be easily scraped off. It is very difficult to erase this text on the original.
As for the case itself, on fakes it is made of less quality, in particular, we are talking about a low level of surface treatment.
The quality of threading, as well as the electrode itself, is lower in fake SZ, this can be seen with the naked eye.
When using a fake, you will notice how on the climbs, as well as when high speeds the power of the power unit begins to decrease.
Fuel consumption can be increased, this must be monitored.
Over time, the side electrode SZ will begin to melt, periodic diagnostics will help to understand this.

Greetings friends! Tell me which of the motorists bothers when choosing spark plugs. For the sake of decency, we asked a couple of questions to the seller and took the first ones that came across, often cheaper. And this is a respected, extremely wrong approach! Today, I will explain to you why! More specifically, we are interested in Denso spark plugs, because they are the world leader in the production of such products. That is, as for the brand, it’s really not worth choosing for a long time, they took the most popular and it’s in the bag! But even in this case, it turns out that there are more than enough nuances in casting a glow plug ...

"Denso" - the best candles in the world!

In 1949, the Denso engineering company was founded on the Japanese islands, which today has its subsidiaries in many countries of the world, of course, there is also a Japanese branch in our country. The concern is the main player in the global auto parts market and I must say it is absolutely deserved! The plant produces not only candles, but brand new generators, scanners, sensors, starters and other components come out of its assembly line.

Of course, due to the high quality and reliability of their products, all the major auto giants of the planet buy parts from Japanese manufacturer. Subaru, Opel, Toyota, Volvo, Citroen - these and many other corporations have been successfully cooperating with Denso for many years.

Range of spark plugs

Just think, the company's price list includes more than six thousand different positions, isn't it a little, right? This number of manufactured products is designed for 99% of the entire fleet of the Eurasian continent! As for candles, there is also plenty to choose from, let's look at some of the most popular series.

Candles standard

From the name itself it is clear that this is Denso's most popular spark plug. Such a model can be used on any gasoline engines all year round, and therefore is considered universal. innovative technology U-groove which is used in production can greatly reduce saturation exhaust gases harmful impurities, ensure efficient fuel ignition and, most importantly, reduce fuel consumption by as much as 5%!

Taking into account a huge number of reviews, I have identified a few clear benefits Japanese candlestick over competitors:

Significantly longer service life, up to 70 thousand km.
Wide range of thermal coefficients.
Efficient heat distribution.

In addition, due to the nickel coating, the standard candle differs high level heat resistance. If you have a middle class car, the best option there will be something like Denso k20tt! A spark plug of this type, even though it costs a little more than domestic counterparts, but excuse me and its resource is higher!

Platinum line

Denso was the first to cover the central and side electrodes with platinum, so the specialists wanted to increase the service life of the candles. And I must say they did not fail, not only did the declared resource of candles grow to 100 thousand kilometers, but also almost all competitors began to use the technology, is this not a sign of success!

Moreover, candles of this type (for example, here k20pr u11) are able to produce an effective spark even with a significant drop in battery voltage! What cars are they recommended for? According to statistics, Japanese and not only automakers prefer the Platinum line when producing premium cars. Logical, isn't it?

Iridium power

Iridium is a metal whose characteristics are very similar to platinum. So, it has excellent resistance to corrosion even at critical temperatures (2000 Celsius is not the limit!), while the cost of iridium is an order of magnitude lower than platinum. The technology for coating electrodes with iridium was also developed at Denso. Candles of this group, such as ik20tt4, have whole line positive benefits:

Wear resistance and therefore durability- no lower than the platinum models, and the price is lower!
Powerful spark - allows the motor to instantly respond to the position of the accelerator.
Ultra-thin central electrode with a diameter of only 0.4 mm(similar to this moment does not exist) - eliminates the possibility of interruptions in the operation of the engine.

In addition to those described above, you can find 4 more types of Denso candles on the shelves of a car dealership, and we will briefly consider them.

Iridium Tough

A combination of the previous two lines, equipped with a 0.7 mm needle-shaped ground electrode. Such a candle will reduce emissions harmful substances from the exhaust, the fuel consumption of your car by 7%, while increasing its power!

Iridium Racing

Produced specifically for sports cars(karts, rally cars, etc.) using special technology. Its uniqueness lies in the same electrode, this time the central one is made of an alloy of rhodium and iridium, and platinum tips are used for the side electrode.

Note: the use of sports candles on ordinary cars allowed, but required without fail take into account the glow number, because such a product is designed only for high-octane fuel.

Nickel (Twin Tip)

Very similar in characteristics with the standard type, including the cost. Their distinguishing feature is again in the electrodes, which are made of nickel. Surely many of you have heard about the denso k16tt in motoring circles. A spark plug of this type will reduce consumption by up to 7% and make it easier to start the engine, stable glow ignition helps in this and powerful spark k20tt. Applicability - fully universal fit on 80% of all cars in Europe.

Disadvantages of Denso spark plugs

FROM positive characteristics spark plugs of this brand, I hope everything is clear, I will not repeat myself and immediately move on to the minuses. There are several of them:

Valuable - it is somewhat higher than our counterparts, but the difference in quality, as I said, is quite significant.
Vulnerability to counterfeit- just a huge number of underground enterprises on the entire planet, releasing copies Japanese candles Denso, so you need to be very careful when choosing.
Knocked gap - for most new parts, the operating gap will have to be set by the buyer.

If you really want to overpay for good reason, you will have to prepare for the purchase! First of all, it is important to be able to read the markings of candles! Here I will prompt, the decoding is carried out according to the table located above.

How not to buy a fake?

If you are already pretty tired of fakes, you got a misfire in the ignition, you don’t need to look for reasons, everything is clear - marriage! I will give you a couple of tips for high-quality identification of the original!

The body, thread and, in general, the candle, are not of high quality, often this can be seen with the naked eye.
The surface of the contact output should not be glossy, but matte.
The very inscription on the candle on a fake is easily torn off.
When using a duplicate, fuel consumption may increase, and traction may decrease.

I am sure you managed to separate the "flies from the cutlets" and right now you are enjoying the virtues of Japanese Denso candles. If this is far from the case, remember, do not get excited, the complete absence of a spark is not at all a sign of a malfunction, it may be required). Hope it was helpful, all the best!

Correct work car motor largely depends on the serviceability of the spark plugs (SZ) used. The range of SZ today is so huge that any consumer can choose devices for his car, based on preferences and financial opportunities. How Denso is carried out on a car, what these SZs are and what disadvantages are characteristic of them - read about this below.

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Characteristic

Denso spark plugs, judging by the reviews of many motorists, are today one of the highest quality and most efficient products for the ignition system. Among hundreds of brands, Denso is the first to patent the TwinTip technology used in the TT production line. Such devices are made with a central electrode, which is made of nickel, with a reduced diameter, in this case it is 1.5 mm. It should also be noted that the side electrode size was similarly reduced to 1.5 mm. The company manufactures products not only for gasoline engines, but also for gas (the author of the video is the DENSO Russia channel).

We suggest that you familiarize yourself with the main features characteristic of the Denso SZ, regardless of what heat number they have:

Products of this brand are characterized by improved discharge formation. According to the manufacturer, in fact they achieve the greatest efficiency. It should be borne in mind that in the production of such products are not used precious metals, for example, iridium, respectively, the cost of such devices is lower. This is reflected in their final price.
In iridium or platinum SZ, the electrodes are made of iridium or platinum, respectively. The cost of such products is higher, but their service life is really impressive. In the first case, it ranges from 60 to 120 thousand kilometers, depending on the thickness of the central electrode, in the second - 70-80 thousand kilometers.
According to Denso official data, products from Denso allow you to provide improved performance at a relatively low cost.
To produce spark and start car engine SZ Denso require much less voltage. This means that the power unit can be started much faster, in particular, we are talking about starting in frosty conditions.
Since Denso products have a thinner center electrode, the discharge itself will be more powerful, and therefore the work efficiency will be higher. This is also important in winter working conditions. As mentioned above, the electrode size is 1.5 mm, while in standard SZ it is about 2.5 mm.