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NGK 5122 Spark Plug

Standard spark plug NGK BR7ES 5122 - Key: 20.8 mm aperture - Thread Diameter: 14.0 mm - 'Thread Length: 19 mm - Distance electrodes: 0.8 mm

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NGK 5122 Spark Plug

The NGK 5122 Spark Plug is a high‑performance ignition component designed to deliver reliable spark, optimal combustion, and superior engine efficiency across a wide range of gasoline engines. Engineered with precision engineering and advanced materials, this plug offers consistent performance in both everyday driving conditions and demanding automotive applications.

Key Features & Technical Specifications

  • Model: NGK 5122 (BR7ES)
  • Type: Copper core spark plug
  • Heat Range: Medium‑heat (suitable for most passenger cars and light trucks)
  • Gap: Standard gap of 0.8 mm (adjustable to match engine requirements)
  • Thread Size: 14/19/20 mm
  • Material: High‑grade copper alloy for the electrode, with a nickel‑plated insulator for durability and corrosion resistance.
  • Design: Optimized electrode geometry to produce a strong, stable spark under high compression and temperature conditions.

Performance Advantages

The NGK 5122 is engineered to provide:

  • Consistent Spark Energy: The copper core ensures excellent electrical conductivity, delivering a robust spark that ignites the air‑fuel mixture reliably.
  • Enhanced Combustion Efficiency: Precise electrode spacing and heat management reduce misfires, leading to smoother engine operation and improved fuel economy.
  • Longer Service Life: The nickel plating on the insulator resists wear from high temperatures and protects against corrosion, extending the plug’s lifespan compared to standard plugs.
  • Versatility: Suitable for a variety of gasoline engines, including those found in compact cars, sedans, SUVs, and light trucks. Its medium‑heat rating balances performance with durability across different engine designs.

Installation & Maintenance Tips

Proper installation is critical to maximize the NGK 5122’s benefits:

  • Torque Settings: Tighten the plug to the manufacturer’s recommended torque (typically around 13–15 Nm) using a calibrated torque wrench. Over‑tightening can damage the threads, while under‑tightening may lead to poor sealing.
  • Gap Adjustment: Verify and adjust the spark gap before installation if your engine requires a specific value. Use a high‑quality gap gauge for accuracy.
  • Thread Protection: Apply anti‑seize compound on the threads to prevent galling, especially in engines with high operating temperatures.
  • Regular Inspection: Check plugs during routine maintenance or if you notice engine hesitation. Replace any plug showing signs of wear, discoloration, or carbon buildup.

Compatibility Overview

The NGK 5122 is compatible with a broad spectrum of gasoline engines that use the BR7ES designation. While it is widely used in many Mitsubishi models (such as the Cordia, Galant, Starion, and Sapporo series), its design also fits other manufacturers’ engines that share similar bore sizes and ignition system specifications.

Why Choose NGK 5122?

Choosing the NGK 5122 Spark Plug means opting for:

  • Reliability: Proven track record in delivering consistent ignition across diverse engine types.
  • Performance: Enhanced spark quality translates to smoother acceleration, reduced idle roughness, and better overall drivability.
  • Durability: Advanced materials and construction reduce the frequency of replacements, saving time and maintenance costs.
  • Engine Protection: By ensuring proper combustion, the plug helps protect engine components from damage caused by incomplete fuel burn or misfires.

Conclusion

The NGK 5122 Spark Plug stands out as a dependable ignition solution for modern gasoline engines. Its copper core construction, medium‑heat rating, and robust design make it an excellent choice for drivers seeking performance, longevity, and peace of mind in their vehicle’s combustion system.

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Identifiers

Brand
NGK NGK is a Japanese brand that produces spark plugs, ignition coils, and other automotive parts. The company has a long history of producing quality automotive parts, and its products are used by many major automakers. NGK is known for its innovation and quality, and its products are often considered the best in the industry.
MPN
NGK 5122
ID
24953541
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