IDENTIFY COUNTERFEIT DENSO SPARK PLUGS

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IDENTIFY COUNTERFEITDENSO SPARK PLUGSDENSO EUROPE B.VPresentation venue / date / presenter name / department name DENSO CORPORATION All RightsReserved./**

Introduction Being a high quality premium spark plug producer, DENSO iscontinuously challenged with imitations/counterfeit spark plugs inthe market. This is technical paper guides to how to identify the keydifferentiation points of counterfeit spark plugs, and provides tips toprotect your business. Do not worry, you do not need a professional/ a mechanic toauthenticate the spark plug.With simple tools like kitchen knife, Spark plug gap measurer, acaliper, basic knowledge on spark plug, and this material will helpyou identify the counterfeit products.Presentation venue / date / presenter name / department name DENSO CORPORATION All RightsReserved./**

Key factors to check in case of suspicion.Steps: Seller Check Visual Check Technical spec check Packing CheckRecommendation To conduct a thorough check, we recommend to placethe potential counterfeit and the genuine DENSO SparkPlug Side by side.Presentation venue / date / presenter name / department name DENSO CORPORATION All RightsReserved./**

1. Authenticate seller Often, DENSO counterfeit spark plugsare being sold outside DENSOrecognized sales channels like: Foreign E-commerce websitesBlack marketUnrecognized dealersFraudulent websites/sellers Please be aware of possiblemalpractice by the sellers. If the priceis unexpectedly low, when comparedto other sales route. The probability ofproduct being counterfeit is high.Note: DENSO does not accept claims for products purchased outside DENSO recognized sales channelPresentation venue / date / presenter name / department name DENSO CORPORATION All RightsReserved./**

2. Visual check Insulator: Counterfeit spark plugs have an irregularinsulator shape. This can cause installation/ connecting to theignition coil. Because of the misalignment Counterfeit spark plugs may have insulator ofdifferent ceramics and colour.Check: Conduct a thorough visual check bycomparing with a genuine one. Measure the insulator diameter using acalliperPresentation venue / date / presenter name / department name DENSO CORPORATION All RightsReserved./**

Visual check Ground Electrode: Counterfeits have irregular groundelectrode and might not be positionedstraight The counterfeit products haveinconsistency in the width and angle ofthe ground electrodeCheck: Use caliper and compare the width of theground electrode. Check for the welding portionPresentation venue / date / presenter name / department name DENSO CORPORATION All RightsReserved./**

Visual check Scratch test The Scratch test reveals the true material of the sparkplug. Counterfeit spark plugs loose the top layer coat. Becausethey are manufactured with cheap materials or coatedwith paint. Counterfeit spark plug often corrode faster because oflow grade materials The genuine is not coated and the material compositionis well tested to withstand heavy scrutiny, temperaturesand conditions.Check: Scratch test can be performed with a simple pocketknife. Pick a spot on the Hexagon and with the pocketknife/sharp object, apply some gentle pressure andscratch on the hexagon part of the a spark plugsPresentation venue / date / presenter name / department name DENSO CORPORATION All RightsReserved./**

Visual check Ground Electrode chip DENSO spark plugs (specific spec) areequipped with high quality chips. For counterfeits, the chip on the groundelectrode is either missing or made ofcheap copper materials. DENSO spark plug has standard andhomogeneous shape of the chip on theground electrode.Check: Conduct a thorough visual check bycomparing with a genuine one. To test this, perform a scratch test on theground electrode chip.Presentation venue / date / presenter name / department name DENSO CORPORATION All RightsReserved./**

Visual check Centre Electrode Welding the central electrode with preciousmetals is a challenging task and can be onlymastered with highly quality material andprecision in production capability. The differences in the welding methodologiesclearly states that the counterfeit products arenot made to withstand the high temperatures,vibrations and combustion cycles. The welding methodology implemented bycounterfeit producers can melt the materialsfaster. Leading the central electrode(Sometimes including the ceramic insulator)to break off and drop inside the cylinder head,causing damage to the piston and engine.Check: Conduct a thorough visual check bycomparing with a genuine one.Presentation venue / date / presenter name / department name DENSO CORPORATION All RightsReserved./**

Visual check DENSO branding DENSO branding are preciselyembossed to the center of the body. Counterfeits lack precision, the Depthof the engraving can be uneven. The letters are not positioned in thecenter Spell mistakes or different brandnames Different fonts style and size Unknown production codesCheck: Conduct a thorough visual checkPresentation venue / date / presenter name / department name DENSO CORPORATION All RightsReserved./**

3. Technical specifications check GAP Check Counterfeit products are prone tohave a difference in GAP by 0.1 or0.2mm difference. This difference is out of DENSOspecification and proves that theproduct is a counterfeit For official Spark Plug Gap relatedinformation, refer to DENSOcatalogueCheck: Use a Feeler gauge or Coin Stylegapping tool to measure the GAPof the Spark plugPresentation venue / date / presenter name / department name DENSO CORPORATION All RightsReserved./**

Technical specifications check Angle of Ground electrode The angle of ground electrode iscarefully positioned andmanufactured to attain the bestspark functionality inside thecombustion chamber. Any deviations will reduce/increasethe Gap distance set by the DENSO. The deviations will affect the sparkfunctionalityCheck: Conduct a thorough visual checkby comparing with a genuine one.Presentation venue / date / presenter name / department name DENSO CORPORATION All RightsReserved./**

Technical specifications check Ceramic Diameter Counterfeit products are prone to have adifference, either thicker/ thinner ceramicpart. Pat attention to the look of the ceramic.Fake Ceramic look alike materials, whenexposed to hot temperatures melt instantly. This difference is out of DENSOspecification and proves that the product isa counterfeitCheck: Using a caliper measuring tool, measurethe diameter of the ceramic part of DENSOSpark plug.Presentation venue / date / presenter name / department name DENSO CORPORATION All RightsReserved./**

Technical specifications check Thread Dimensions Counterfeit products are prone tohave differences in the following Reduced thread size Thread Pitch If the difference is out of DENSO andISO specification, this proves that theproduct is a counterfeitCheck: Using a caliper (measuring tool),measure the total length of thethread size and over all spark pluglength.Presentation venue / date / presenter name / department name DENSO CORPORATION All RightsReserved./**

Technical specifications check Gasket DENSO has strict policy for the Gasket gap, as this iscrucial for installation torque requirements and sparkpositioning. Counterfeit products might have thicker/thinner gasket.Do not follow ISO requirements The diameter, thickness and Gap of Gasket is directlyrelated to installation of the spark Plug. Thicker/Thinner gasket may not allow the Spark plug tosit tightly inside the combustion chamber. As the threadline does not immerge completely into the cylinder head.Will cause misalignment with the available threadinginside the combustion chamber for the spark plug.Check: Use a caliper (measuring tool), measure the available Gapbetween the Gasket and the body. Measure the thickness of the Gasket.Presentation venue / date / presenter name / department name DENSO CORPORATION All RightsReserved./**

4. Packaging DENSO Spark Plug comes in variety ofbox sizes and designs. The packing differs from technology totechnology and part numbersRecommendation: Conduct a thorough visual check. DENSO logo position The counterfeit products have DENSOArc positioned slights toward to theCentre of the Logo While the genuine Denso Logo has Arcpositioned to the left of the DENSOname.Presentation venue / date / presenter name / department name DENSO CORPORATION All RightsReserved./**

Packaging Production batch Counterfeit producers mimic theDENSO genuine Spark plugsproduction codes from differentproduction batches and Sparkplugs circulating in the market The irregular production codepacked in a 4 four or 10 pack boxis a sign for counterfeit product.Presentation venue / date / presenter name / department name DENSO CORPORATION All RightsReserved./**

PackagingGenuineCounterfeit Barcode and Form of theCutting Counterfeit producers mimic theDENSO genuine Spark plugs packingby using the same style of design/artwork. The noticeable differences are: Barcode Printing and Cardboard quality Colors Unrecognized logos and stickers Form of cutting methods usedPresentation venue / date / presenter name / department name DENSO CORPORATION All RightsReserved./**

Packaging Country of origin DENSO spark plugs are manufactured onlyin the following DENSO manufacturingplants located in DENSO Japan DENSO Indonesia DENSO China DENSO USA If you notice any other country of originon the packing, the product is suspiciousto be counterfeit.Presentation venue / date / presenter name / department name DENSO CORPORATION All RightsReserved./**

Presentation venue / date / presenter name / department name DENSO CORPORATION All RightsReserved./**

DENSO spark plug has standard and homogeneous shape of the chip on the ground electrode. Check: Conduct a thorough visual check by . information, refer to DENSO catalogue Check: Use a Feeler gauge or Coin Style gapping tool t

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