Candles Denso - how to distinguish a fake from the original

Candles Denso - how to distinguish the original from a fake Auto

Denso spark plugs are installed on ordinary cars, including Toyota. They should be purchased only in trusted specialized stores, so as not to stumble upon a fake. Why is it important? You can buy and use fake candles, focusing on their cheapness .. But, unfortunately, the joy of saving will be short-lived. Sooner or later, this will lead to a breakdown of the car, to additional costs for repairs and replacement of spare parts. It is not difficult to distinguish the original from the fake, for this you need to carefully study the appearance of the spare part and the packaging.

We recommend looking at original Denso candles here

Candles Denso - how to distinguish a fake from the original

The appearance of the candle

Original candles have a number of external distinguishing features from fakes. The main differences that are the first thing that catches the eye are seven:

  1. Tip
  2. inscriptions
  3. Frame
  4. Sealing ring
  5. electrodes
  6. Thread
  7. Package

Tip

We recommend looking at original Denso candles here

The tip of the fake, that is, the cap itself, is glossy, while the Denso original has a matte finish. It has no defects, including warps. It cannot be unscrewed by hand.

Candles Denso - how to distinguish a fake from the original

 

The casting of the original and the fake is different. The fake has a smooth tip, branded candles have a small depression.

Candles Denso - how to distinguish a fake from the original

Read also: how to check shell oil for authenticity

inscriptions

Fake candles also have inscriptions according to the type of marking. But, they are different from the original.

Replica inscriptions:

  1. They are erased if they are rubbed with something hard, that is, not with a finger. A fake candle has a fuzzy marking, which is not only poorly printed, but can also be scraped off or simply disappear when exposed to high temperatures.
  2. Not covered with a special varnish, like the originals. In the original candle, the inscription is protected by a heat-resistant varnish, so it will not work to scrape it off.
  3. They differ externally. The font on the body, that is, the metal part of the candle, may be uneven, bold, blurry. In the originals, it is thin, even, clear, it can be “dotted” and ordinary.Candles Denso - how to distinguish a fake from the original
  4. On the metal central part, the type seems to be "scratched" rather than engraved.Candles Denso - how to distinguish a fake from the original

On a fake, the central electrodes are often not processed (not polished, have a pronounced low-quality surface both at the end of the electrode and on its body), and also not centered. In the latter case, this means that the central electrode is not in the middle of the candle, but is littered a little on its side.

After the cases of selling fakes became more frequent, the company decided to produce candles with different fonts - “dotted” and regular (solid). This fact is confirmed by the manufacturer.

Frame

We recommend looking at original Denso candles here

In a fake, the case is not cast with high quality, traces of the groove from the machines can be seen. Original candles are made by casting. On fakes, bevels, sagging, dimples, blotches are noticeable.

Candles Denso - how to distinguish a fake from the original

Sealing ring

The sealing ring must not be removed from the threaded connection of the spark plug. If it can be removed, then this is a clear counterfeit.

Candles Denso - how to distinguish a fake from the original

electrodes

The lower part of the candle consists of 3 parts:

  1. electrode.
  2. side electrode.
  3. Insulator.

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The central electrode must be located strictly in the center, made with high quality. Its size clearly corresponds to the size that is written on the package.

On fake candles, the diameter of the central electrode (in particular, its tip) is much thicker than it should be on the original. Check its meaning in the attached documentation and check visually. To do this, you can take some kind of wire, knitting needle or drill of a predetermined diameter.

In the original, the tip of the spark plug electrode is sharp, especially for expensive DENSO iridium spark plugs and other brands.

Moreover, on fairly well-made fakes, this is sometimes the only method to identify counterfeit, since all other elements of the candle are made identical to the original.

To check the size of the electrode, you can take a drill of the desired thickness with you to the store. Attach the drill to the electrode and check the size.

Candles Denso - how to distinguish a fake from the original

The side electrode on a fake candle is often installed crookedly, and its edge is beveled. The quality of soldering the side electrode of a fake is always lower.

The side and center electrodes must be aligned.

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As for the insulator, the original candle has a smooth surface. In a fake, unlike the original, firstly, the surface will not be as smooth (more rough to the touch), and secondly, on the insulator body from two diametrically opposite sides, you can notice and feel the longitudinal protrusions that remain as a result of inaccurate joining of the molding handmade molds.

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Thread

We recommend looking at original Denso candles here

For fake candles, the threads are of poor quality. This is due to the fact that metal parts are made on conventional machines. Branded candles are produced on precision equipment, so they are free from defects, except for a manufacturing defect.

Candles Denso - how to distinguish a fake from the original

In the original Denso spark plugs, the counter electrode is laser welded.

There may be sagging of metal and small irregularities. This is considered the norm of production!

Check Denso Candles by barcode:

Enter 13 digits of the barcode:

Opposite the central electrode, that is, on the counterpart, there is a “receiving” nickel.

The insulator has a perfectly even shape, painted white and uniform.

Notation

Before buying, you should familiarize yourself with the designation system of the original Denso candles. It looks like this:

Candles Denso - how to distinguish a fake from the original

Iridium tt has its own naming convention:

Candles Denso - how to distinguish a fake from the original

Old marking type:

Candles Denso - how to distinguish a fake from the original

The marking of the candle model is indicated on the product itself and on the packaging. It consists of a certain set of letters and numbers.

We recommend looking at original Denso candles here

The marking may be as follows:

k20ttCandles Denso - how to distinguish a fake from the original

2.w20ttCandles Denso - how to distinguish a fake from the original

3.ixeh22ttCandles Denso - how to distinguish a fake from the original

4.ixeh20ttCandles Denso - how to distinguish a fake from the original

5.ik20Candles Denso - how to distinguish a fake from the original

6.ik16Candles Denso - how to distinguish a fake from the original

7. Other, depending on the selected candle model from the company catalog.

It is worth knowing that the sc20hr11 has been discontinued. As a replacement, spark plugs with catalog number SC16HR11 are offered.

Types of high performance Denso iridium spark plugs:

IRIDIUM POWER IRIDIUM TOUGH IRIDIUM TT IRIDIUM RACING
Mileage, km 60 000 100000 120000 Depends on operating conditions
Size, mm 0,4 0,4 0,4 0,4
Peculiarity U-groove and tapered tip Platinum electrode pad Platinum needle 0.8mm square platinum
Advantage Best Ignition, High Efficiency Priority High efficiency, long service life Longest service life, very high efficiency Highest wear resistance, racing, tuning (high speed engine)

Package

Depending on the model of the candle, the packaging can be of any color. But, all candles are packed in separate containers, and then in a common one. Each is coded.

The code must be the same on the package as on the candle itself.

The packaging is made of high quality cardboard, assembled well. The original candles, as a rule, but by the way not always, have high-quality packaging. This applies to both material and printing. Pay attention to the quality of fonts and printing so that they are even and the paint does not flow. Fake words may have spelling errors. The print on it is clear, the paint is not erased, does not remain on the hands.

Another recommendation is to buy DENSO spark plugs in the same packaging. Sometimes you can find similar candles on sale, but in the packages of automakers Toyota, Nissan, Honda, and so on. It is better to avoid repackaging, since in this case the risk increases that counterfeit goods may be placed in the original packaging. However, this judgment is not absolute, and there may be exceptions.

Read also: jack rating

You can check the manufacturer's country by barcode using the following form:

Enter 13 digits of the barcode:

Consequences of using fake candles

Spark plug replacement

We recommend looking at original Denso candles here

Fake candles can cost 2-3 times cheaper than the original ones. But, if you want to avoid a car breakdown, premature repairs and financial costs, you should know how to distinguish a fake from the original and buy only in trusted stores.

  • Fake candles can increase fuel consumption. Their sparking is not stable. This leads to incomplete combustion of the fuel. Soot remains on the candle and this contributes to excessive fuel consumption, difficulty starting the engine.
  • Cause a drop in engine power on hills. The heat sink of fakes is poor, since they do not have a copper core. This leads to pre-ignition, causing engine power to drop when driving uphill on motorways.

In addition, the side electrode tends to melt. This can happen due to long use of an overheated candle.

Before buying spare parts for a car, you should make a visual check of the goods. To establish the authenticity of Denso brand candles, you need to know the distinguishing features of the originals from fakes. And, already knowing them, purchase goods in a specialized store or order from the official website of the manufacturer, and not from third-party Internet sources at a price below the market.

What does a fake Denso iridium candle look like?

Denso SXU22HDR8

The original Denso SXU22HDR8 spark plug looks like this:

Candle Denso SXU22HDR8

The thin electrode of an original DENSO spark plug looks like this:

Thin electrode

 

The fake DENSO Iridium SXU22HDR8 spark plug has the following errors and defects:

  • poor-quality font, crooked printing, spelling errors and inaccuracies in technical information;
  • the central electrode of the candle differs from the original in size and color;
  • there is no additional soldering on the side electrode;
  • there may be defects in the thermal insulator of the candle;
  • the contact nut is poorly processed, it can be unscrewed by hand without much effort.

Denso FXE20HR11

The original Denso FXE20HR11 spark plug looks like this:

Candle Denso FXE20HR11

The DENSO FXE20HR11 iridium spark plug has similar features:

  • the shape and color of the central electrode is different from the original;
  • as a rule, there are defects on the body of the candle insulator;
  • on the body of the original candle at the junction of the insulator and the body there is a special thermally baked powder, it is absent on the fake;
  • the diameter of the thermal cone of the insulator for a fake is somewhat smaller;
  • the color of the metal is duller.

Denso FXE20HE11

The original Denso FXE20HE11 spark plug looks like this:

Candle Denso FXE20HE11

The Denso FXE20HE11 fake iridium spark plug has the following differences:

  • the central electrode differs in shape and color from the original;
  • there is no special soldering on the body of the side electrode;
  • usually the thermal cone of the insulator is defective or poorly made;
  • the contact nut is poorly processed, it can be unscrewed without much effort.

Denso K20PSRB8

Candle K20PSRB8

On the left, poor-quality soldering of a fake is marked

Soldering

 

 

A fake Denso K20PSR-B8 iridium candle has the following defects and shortcomings:

  • the Denso trademark marking is different from the original, it is broken and looks of poor quality;
  • the contact nut is roughly processed, has a matte surface and is easily unscrewed;
  • the central electrode is different in shape and color from the original;
  • the thermal cone can also be defective;
  • the o-ring has a different appearance.

To consolidate the material, we suggest you watch a video review on the topic:

Where do you prefer to buy spare parts for your car?
At the car market
0%
In a specialized store
36.36%
I order online
36.36%
I trust the purchase to the car service master
9.09%
On Avito and similar bulletin boards
9.09%
Haven't bought parts yet.
9.09%
Voted: 11

What to do if you sold a fake?

Where to go if you sold a fake?

Discover!

Andrey Kozhevnikov

Blog author. 7 years of experience as a Merchandiser. Specialist in the definition of quality products. Distinguished more than 5,000 fake goods. My motto: there is no limit to perfection!

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Add a comment

  1. Vadim

    On the first two photos of the package there is a 12-digit barcode. Should be 13 . Please comment on this fact.

    Reply
    1. Andrey Kozhevnikov author

      Hello! Where did you get the information that it should be exactly 13 digits?

      Reply
      1. Albert

        When checking on online sites (copy the number and paste), one more zero is added at the beginning. You get 13 digits. I don't know if this is correct or not. So I got Japanese denso candles from America. Oh how!!

        Reply
  2. Rail

    Good day :) Thanks to the author for the article, now I will know how to distinguish the original from the fake, I’d rather pay more for one part than after a breakdown for several parts, and it will also cost a tidy sum :)

    Reply
  3. Oleg

    Denso are excellent candles, I really use them not in a car, but in a lawn mower and a chainsaw, they are very resource-intensive, unlike the regular ones that came with the devices. By the way, I checked, I have the originals.

    Reply
  4. georgi

    uchtu vse vashi soveti obazatelno spasiboooo

    Reply
  5. Anna

    excellent candles, I use them, though not in a car, but in a lawn mower and a chainsaw,

    Reply