Part #: 3200

NGK 3200 Spark Plug

Laser Platinum Spark Plug
18 vehicles fit this part
Select your vehicle to confirm fitment
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Laser Platinum Spark Plug
Fitment: Alfa Romeo, Maserati, Porsche, Audi, Lamborghini, and Mercedes-Benz, 164, Spyder, 228i, 944, 425, Biturbo, 5000, Countach, and 300SL
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NGK Laser Platinum Spark Plug Overview

The NGK Laser Platinum Spark Plug 3200 is engineered for reliable ignition performance in high-end vehicles such as Lamborghini, Maserati, Mercedes-Benz, and Porsche models. Designed with precision materials and specifications, this spark plug supports efficient combustion and consistent engine operation.

  • Part Number: 3200 (Pgr7a)
  • Center Electrode Tip Material: Platinum for enhanced durability
  • Center Electrode Core Material: Copper for optimal conductivity
  • Ground Electrode Core Material: Nickel with standard tip design
  • Resistance: 5000 ohms to reduce electrical noise
  • Pre-Gap Size: 0.028 inches for precise spark delivery
  • Thread Diameter: 14.00 mm with 0.75 inch reach
  • Hex Size: 13/16 inch for standard installation tools
  • Seat Type: Flat for secure sealing
  • Electrical Terminal Type: Non-removable nut
  • Manufacturer Heat Range: 7 suitable for specific engine requirements

About the NGK Laser Platinum Spark Plug Line

The Laser Platinum Spark Plug line from NGK combines platinum-tipped electrodes with copper cores to provide a balance of durability and efficient electrical conductivity. This design helps maintain stable ignition performance over extended service intervals, making it suitable for performance and luxury vehicles like the Porsche 944 and Mercedes-Benz 300SL.

Technical Description and Features

This NGK spark plug features a platinum center electrode tip that resists wear and erosion, extending the service life compared to conventional plugs. The copper core center electrode enhances thermal conductivity, promoting better heat dissipation. The single nickel ground electrode with a standard tip design ensures consistent spark gap integrity. The 5000 ohm resistance helps suppress radio frequency interference, protecting sensitive vehicle electronics. With a flat seat type and a 0.75 inch reach, this spark plug fits securely and maintains proper combustion chamber sealing.

Compatible Vehicles and Applications

  • Compatible with Lamborghini Countach and Spyder models
  • Suitable for Maserati Biturbo engines
  • Designed for Mercedes-Benz 300SL ignition systems
  • Fits Porsche 228i and 944 models requiring a heat range 7 spark plug

Common Issues Addressed by NGK 3200 Spark Plug

  • Misfiring or rough idling due to worn electrodes
  • Reduced fuel efficiency from inconsistent spark delivery
  • Difficulty starting engines in high-performance vehicles
  • Engine hesitation or power loss under load
  • Electrical interference affecting onboard electronics

Installation Notes and Tips

Ensure the spark plug gap is set to the specified 0.028 inches before installation. Use a torque wrench to tighten the spark plug to manufacturer specifications to avoid damage to the flat seat or threads. The 13/16 inch hex size allows for standard spark plug sockets. Confirm compatibility with your vehicle’s engine model and heat range requirements prior to installation.

Quality Assurance and Warranty

NGK spark plugs are manufactured to meet strict quality standards for ignition components. The Laser Platinum Spark Plug 3200 undergoes rigorous testing to ensure durability and performance consistency. While specific warranty details vary by region, NGK typically offers coverage against manufacturing defects. Refer to NGK’s official documentation for warranty terms applicable to this part.

BrandNGK
Part Number3200
PositionLaser Platinum Spark Plug
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialPlatinum
Electrical Terminal TypeNon-Removable Nut
Ground ConfigurationStandard
Ground Electrode Core MaterialNickel
Ground Electrode Quantity1
Ground Electrode Tip DesignStandard
Hex Size13/16
Insulator Height55.00
Manufacturer Heat Range7
Part NumberPGR7A
Pre-Gap Size.028
Reach.75
Resistance5000
Seat TypeFlat
Stock Number3200
Thread Diameter14.00

This part fits 18 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1991MaseratiSpyder2.8LV6N/ASet spark plug gap to 0.028 inches.; Laser Platinum Spark Plug
1990Maserati228i2.8LV6N/ASet spark plug gap to 0.028 inches.; Laser Platinum Spark Plug
1990MaseratiSpyder2.8LV6N/ASet spark plug gap to 0.028 inches.; Laser Platinum Spark Plug
1989Maserati228i2.8LV6N/ASet spark plug gap to 0.028 inches.; Laser Platinum Spark Plug
1989MaseratiSpyder2.8LV6N/ASet spark plug gap to 0.028 inches.; Laser Platinum Spark Plug
1989Porsche9443.0LL4N/ASet spark plug gap to 0.028 inches.; Laser Platinum Spark Plug
1987Maserati4252.5LV6N/ASet spark plug gap to 0.028 inches.; Laser Platinum Spark Plug
1987MaseratiBiturbo2.5LV6N/ASet spark plug gap to 0.028 inches.; Laser Platinum Spark Plug
1987MaseratiSpyder2.5LV6N/ASet spark plug gap to 0.028 inches.; Laser Platinum Spark Plug
1986Maserati4252.5LV6N/ASet spark plug gap to 0.028 inches.; Laser Platinum Spark Plug
1986MaseratiSpyder2.5LV6N/ASet spark plug gap to 0.028 inches.; Laser Platinum Spark Plug
1981LamborghiniCountach3.9LV12N/ASpark plug gap size: 0.025 inches.; Laser Platinum Spark Plug
1959Mercedes-Benz300SL3.0LL6N/ASpark plug gap size: 0.025 inches.; Laser Platinum Spark Plug
1958Mercedes-Benz300SL3.0LL6N/ASpark plug gap size: 0.025 inches.; Laser Platinum Spark Plug
1957Mercedes-Benz300SL3.0LL6N/ASpark plug gap size: 0.025 inches.; Laser Platinum Spark Plug
1956Mercedes-Benz300SL3.0LL6N/ASpark plug gap size: 0.025 inches.; Laser Platinum Spark Plug
1955Mercedes-Benz300SL3.0LL6N/ASpark plug gap size: 0.025 inches.; Laser Platinum Spark Plug
1954Mercedes-Benz300SL3.0LL6N/ASpark plug gap size: 0.025 inches.; Laser Platinum Spark Plug

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

22401-18V1732003302MD338991P22PR8

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.