NGK 4940 Spark Plugs
( Brand: Ngk ), ( Manufacturer Part Number: 4940 ), ( Type: Spark Plug ), ( Material: Material ), ( Item Length: 8.400 )
Review NGK
High-Performance Spark Plug - NGK BKR4EIX-11 - Reliable Ignition for Optimal Engine Performance
The NGK BKR4EIX-11 Spark Plug is a testament to engineering excellence, designed to deliver exceptional performance and longevity for your automotive needs. This premium spark plug, part of the NGK's coveted line of products, is specifically engineered for applications requiring a 4mm electrode gap.
The NGK BKR4EIX-11 features a resistant to fouling center electrode, ensuring optimal ignitability and preventing the buildup of carbon deposits for enhanced engine performance. The plug's iridium alloy center electrode delivers superior ignitability and longer service life, even under the most demanding conditions.
The trivalent metal plug coating of the NGK BKR4EIX-11 provides excellent corrosion resistance, ensuring the plug maintains its performance throughout its lifespan. The fine-wire platinum ground electrode contributes to improved heat transfer and spark efficiency, resulting in a more responsive engine.
This spark plug is a perfect match for high-compression, high-performance engines, where reliable ignition and longevity are key factors. The NGK BKR4EIX-11 is designed to meet or exceed the strict OEM specifications, ensuring a seamless fit and superior engine performance.
In conclusion, the NGK BKR4EIX-11 Spark Plug is a high-performance, long-lasting solution for enhancing your engine's ignition system. With its iridium alloy center electrode, trivalent metal coating, and fine-wire platinum ground electrode, this spark plug promises to deliver the reliability, efficiency, and longevity you need for optimal engine performance.
The NGK 4940 spark plug is a popular choice among many automotive enthusiasts and mechanics. Here's a list of its pros and cons to help you make an informed decision:
Pros:1. High Quality: NGK is a well-known brand that is trusted for its high-quality spark plugs. The NGK 4940 is designed to provide excellent performance and longevity.
2. Heat Range: The NGK 4940 spark plug offers a good heat range, which means it can withstand high temperatures and prevent pre-ignition or misfires.
3. Resistance to Fouling: This spark plug is less likely to foul due to its iridium tip, making it a good choice for vehicles that often sit idle or undergo heavy use.
4. Efficient Ignition: The NGK 4940 spark plug provides efficient ignition, which can help improve fuel economy and engine performance.
Cons:1. Price: Compared to other spark plugs, the NGK 4940 may be more expensive due to its high-quality materials and iridium tip.
2. Not Suitable for All Vehicles: The NGK 4940 is not suitable for all vehicles. It is recommended for high-performance engines and may not be the best choice for standard or economy cars.
3. Installation: Installing the NGK 4940 may require specialized tools and knowledge, which may not be available to all car owners.
Conclusion:The NGK 4940 spark plug is a high-quality choice for vehicles that require a durable and efficient spark plug. Its iridium tip provides excellent resistance to fouling and ensures efficient ignition. However, the higher price point and specialized installation requirements may deter some car owners.
Recommendation:If you own a high-performance vehicle or frequently drive under heavy use, the NGK 4940 spark plug is a good choice. If you have a standard or economy car, you may want to consider a less expensive option that is more suitable for your vehicle's needs. Always consult your vehicle's owner's manual or a professional mechanic to ensure you are choosing the right spark plug for your car.
Details:
NGK P/N:4940,:: Spark Plug. Note: Photos do not always represent the actual product. For kits, photo might show entire kit and listing is only for one component.
part #: 4940 prices
- $42.03-$93.19
specifications cyclesparkplugs:
- brand: Ngk
- mpn: 4940
- type: Spark Plug
- material: Material
- item length: 8.400
shipping cyclesparkplugs:
- cost: $0.00
- type: Fixed
- class: Standard
- service: Standard
- transit: 2-5 Days
seller cyclesparkplugs:
- # reviews: 82817
- rating: 98.8%
- city: USA
offer cyclesparkplugs:
- sold: 0
- options: Ship-to-home
- started: December 11, 2025
- quantity: 8
- availability: In Stock
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general cyclesparkplugs:
- Motorcycle Scooter Parts Accessories > Electrical Ignition Components > Spark Plugs
- condition: New
returns cyclesparkplugs:
- policy: Returns Accepted
- time: 30 Days
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