How to identify original NGK spark plug: To identify an original NGK spark plug, start by inspecting the packaging for clear logos and high-quality printing. Check the spark plug for distinct engravings, a white ceramic insulator, and a solid weight, as counterfeit plugs often have poor markings and inferior materials.
When it comes to maintaining a smooth-running engine, the spark plug plays an essential role. Among the most trusted and well-known brands in the automotive industry is NGK, offering high-quality spark plugs designed to enhance your engine’s performance. However, the rise of counterfeit products means that identifying genuine NGK spark plugs has never been more critical. Counterfeit spark plugs can damage your engine, reduce fuel efficiency, and lead to costly repairs.
In this comprehensive guide, we’ll walk you through how to identify original NGK spark plugs. From checking the packaging to examining the spark plug itself, you’ll learn everything you need to ensure that the spark plug you’re purchasing is authentic. This guide will be helpful to beginners who want to protect their vehicles and maintain optimal performance.

Contents
Importance of Identifying Original NGK Spark Plugs
Spark plugs, despite their small size, have a big impact on how your vehicle performs. NGK spark plugs are made with high-quality materials and advanced manufacturing processes to ensure long-lasting durability, efficiency, and reliability. However, counterfeit NGK spark plugs can compromise engine health, fuel efficiency, and even safety.
Risks of Using Fake NGK Spark Plugs
Using counterfeit spark plugs may seem like an affordable option, but it comes with serious consequences for your engine. From decreased performance to potential damage, the risks associated with fake NGK spark plugs are not worth ignoring.
- Engine Misfires: Counterfeit spark plugs may not ignite the air-fuel mixture correctly, leading to engine misfires and rough running.
- Decreased Fuel Efficiency: A poor spark plug can lead to inefficient combustion, causing your engine to burn more fuel than necessary.
- Increased Emissions: Faulty spark plugs lead to incomplete combustion, which increases the vehicle’s emissions and contributes to environmental pollution.
- Engine Damage: Inferior materials in fake spark plugs can cause overheating and damage to your engine’s components.
In short, using original NGK spark plugs ensures that your engine operates at peak performance, while counterfeit plugs can result in long-term damage and more frequent repairs. Therefore, it’s essential to know how to distinguish original NGK spark plugs from fake ones.
How to Identify Original NGK Spark Plugs
When purchasing spark plugs, it’s essential to ensure they are genuine to avoid potential engine damage. In this section, we’ll go over key characteristics that can help you distinguish authentic NGK spark plugs from counterfeit ones.
1. Inspect the Packaging
The first step in identifying original NGK spark plugs is to closely examine the packaging. NGK has high standards for their packaging, and counterfeit spark plugs often have inferior or poorly printed packaging. Here’s what you need to look for:
- NGK Logo: The NGK logo on the packaging should be clear, sharp, and professionally printed. Fake spark plugs may have a blurry or distorted logo.
- High-Quality Printing: Genuine NGK packaging has clear, crisp text and high-quality printing. Counterfeit products may have poorly printed text or faded information.
- Product Information: The packaging of genuine NGK spark plugs will include clear and accurate information about the part number, specifications, and features. Counterfeit packaging may be missing or incorrect.
- Holographic Stickers: Some NGK products feature security holograms or unique stickers to verify authenticity. Look for these security features, which are often missing on fake spark plugs.
2. Examine the Spark Plug Itself
Once you’ve examined the packaging, it’s time to look at the spark plug itself. Original NGK spark plugs have distinct characteristics, while counterfeit ones may have noticeable differences. Here are the key things to check:
- Ceramic Insulator: Genuine NGK spark plugs have a white ceramic insulator. Fake spark plugs may have a grayish or discolored ceramic insulator. The insulator should be smooth with no cracks or chips.
- Electrode Material: NGK uses high-quality metals like platinum, iridium, or copper for their electrodes. Counterfeit spark plugs might use inferior materials that can lead to corrosion or faster wear. Inspect the electrodes carefully for any signs of poor quality.
- Engravings and Markings: Genuine NGK spark plugs are engraved with the NGK logo and part numbers. The engravings should be clear and deep, not superficial or easily scratched off. Counterfeit plugs may have missing or faint engravings.
- Thread Quality: The threads of genuine NGK spark plugs are precision-made and smooth. Fake plugs may have poorly formed or rough threads, which could cause difficulties when installing them.
3. Verify the Serial Number
One of the most reliable ways to verify the authenticity of your NGK spark plug is by checking the serial number. Every NGK spark plug has a unique serial number that can be cross-checked for authenticity.
- NGK Website Verification: You can visit NGK’s official website and use their product verification tool. This allows you to input the serial number or scan the QR code from the packaging to verify the plug’s authenticity.
- Authorized Dealers: If you’re unsure, you can contact NGK customer service or an authorized dealer to verify the serial number. This step ensures that the spark plug you’ve purchased is authentic.
4. Check the Weight of the Spark Plug
Authentic NGK spark plugs are made from high-quality materials and have a specific weight. Counterfeit spark plugs often use inferior metals, making them lighter than genuine ones.
- Weigh the Spark Plug: If you have a known genuine NGK spark plug, compare its weight with the spark plug you’re inspecting. A genuine NGK spark plug will feel solid and slightly heavier compared to a fake one.
5. Compare the Spark Plug with a Known Genuine One
If you have access to a genuine NGK spark plug, comparing the two is a simple yet effective way to spot a counterfeit. Pay attention to the following:
- Surface Finish: Original NGK spark plugs have a smooth, shiny, and even surface finish. Counterfeit plugs may have inconsistent or rough surfaces.
- Alignment of Electrodes: Check the alignment of the central electrode and ground electrode. In counterfeit spark plugs, the alignment might be off, which can cause irregular firing.
- Color: Genuine NGK spark plugs typically have a metallic finish with a clean, bright appearance. Fake plugs might appear dull or have a different color.
6. Use the Niterra India App & QR Code
For added security, NGK (now branded as Niterra) offers an official app for verifying the authenticity of spark plugs. The app allows you to scan a QR code on the packaging, which links directly to the product’s details on the NGK database.
- Download the App: The Niterra India app is available for both Android and iOS devices. Install the app, scan the QR code on the packaging, and you’ll get instant verification.
- What You’ll Find: The app will provide you with product information, including the part number, specifications, and whether the spark plug is genuine.

Risks of Using Counterfeit NGK Spark Plugs
Using counterfeit spark plugs is a serious risk to your engine’s health. While counterfeit spark plugs may appear to function similarly at first, they can cause long-term damage. Here are the risks associated with using fake NGK spark plugs:
- Overheating: Fake spark plugs can cause excessive heat buildup, potentially leading to engine overheating and damage to internal components.
- Poor Performance: Counterfeit plugs may not provide a reliable spark, leading to incomplete combustion. This reduces engine performance and fuel efficiency.
- Premature Wear: Inferior materials can cause the spark plug to wear out faster, requiring you to replace it more frequently.
- Reduced Longevity: Original NGK spark plugs are designed to last for extended periods. Counterfeit plugs, however, may not offer the same level of durability and performance.
Frequently Asked Questions
Here are some FAQs about how to identify fake ngk spark plugs –
1. Are NGK spark plugs expensive?
NGK spark plugs are competitively priced, but if a deal seems too good to be true, it probably is. Counterfeit plugs are often sold at a lower price but come with significant risks.
2. Can I use counterfeit NGK spark plugs in my car?
While counterfeit spark plugs may work temporarily, they can cause engine misfires, poor fuel efficiency, and long-term damage. It’s always best to use genuine NGK spark plugs.
3. Where should I buy NGK spark plugs to avoid counterfeits?
Purchase NGK spark plugs from authorized dealers, reputable auto parts stores, or directly from the official NGK website.
4. How long do NGK spark plugs last?
Depending on your vehicle and driving conditions, NGK spark plugs can last anywhere from 30,000 to 100,000 miles.
Conclusion
Identifying original NGK spark plugs is crucial to maintaining your vehicle’s engine performance and longevity. Counterfeit spark plugs may seem like a cheaper alternative, but they can result in engine damage, poor performance, and more frequent repairs. By carefully inspecting the packaging, examining the spark plug, checking the serial number, and using the Niterra India app, you can ensure that you’re purchasing an authentic NGK spark plug.
Always buy from authorized dealers and take the time to verify your spark plug before installing it. Your engine will thank you in the long run.