Part #: 6701

NGK 6701 Spark Plug

Laser Iridium Spark Plug
8 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Laser Iridium Spark Plug
Fitment: Mazda, RX-8
Easy Returns — Return within 60 days for a full refund
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NGK Laser Iridium Spark Plug 6701 for Mazda RX-8

The NGK Laser Iridium Spark Plug 6701 is engineered to deliver reliable ignition performance for the Mazda RX-8. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

  • Iridium center electrode tip for enhanced durability and ignition
  • Platinum ground electrode core with pin-type tip design
  • Flat seat type with a 14mm thread diameter and 0.75" reach
  • Non-removable nut electrical terminal for secure connection
  • Pre-gap size of 0.048" optimized for Mazda RX-8 engines
  • Hex size of 13/16" for standard installation tools
  • Manufacturer heat range of 9 suitable for RX-8 engine requirements

Advanced Features of the NGK Laser Iridium Spark Plug

The NGK Laser Iridium Spark Plug line is known for combining iridium and platinum materials to improve spark efficiency and electrode longevity. The 6701 part number features a copper core center electrode that enhances thermal conductivity, while the iridium tip ensures precise spark generation. The ground electrode uses a platinum core with a pin-type tip and slant configuration, which helps maintain a stable spark gap and reduces electrode wear. This spark plug’s flat seat and 14mm thread diameter ensure proper fitment and sealing in the Mazda RX-8 engine cylinder head.

Compatible Applications and Performance Benefits

This NGK Laser Iridium Spark Plug 6701 is specifically compatible with the Mazda RX-8, providing consistent ignition performance tailored to this rotary engine. It addresses common ignition-related issues such as:

  • Misfires and rough idling
  • Poor fuel efficiency due to incomplete combustion
  • Difficulty starting the engine in various conditions
  • Reduced engine power and acceleration
  • Excessive spark plug wear leading to maintenance intervals

Installation Notes and Tips

When installing the NGK Laser Iridium Spark Plug 6701 on a Mazda RX-8, ensure the following:

  • Use a 13/16" socket for proper torque application
  • Verify the pre-gap size of 0.048" before installation
  • Apply anti-seize compound sparingly on the threads if recommended by the vehicle manufacturer
  • Torque to the Mazda RX-8 manufacturer’s specifications to avoid damage
  • Inspect the spark plug hole for debris before installation

Quality Assurance and Warranty

NGK spark plugs, including the Laser Iridium Spark Plug 6701, are manufactured to meet strict quality standards. The use of high-grade iridium, platinum, and copper materials ensures durability and consistent performance. While specific warranty details may vary, NGK products typically come with a limited warranty against manufacturing defects. Always consult the product documentation or NGK for warranty terms related to this part number.

BrandNGK
Part Number6701
PositionLaser Iridium Spark Plug
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialIridium
Electrical Terminal TypeNon-Removable Nut
Ground ConfigurationSlant
Ground Electrode Core MaterialPlatinum
Ground Electrode Quantity1
Ground Electrode Tip DesignPin Type
Hex Size13/16
Insulator Height60.00
Manufacturer Heat Range9
Part NumberRE9B-T
Pre-Gap Size.048
Reach.75
Resistance5000
Seat TypeFlat
Stock Number6701
Thread Diameter14.00

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2011MazdaRX-81.3LR2N/ATrailing; Gap 0.048"; Actual OE Manufacturer; 37,500 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug
2010MazdaRX-81.3LR2N/ATrailing; Gap 0.048"; Actual OE Manufacturer; 37,500 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug
2009MazdaRX-81.3LR2N/ATrailing; Gap 0.048"; Actual OE Manufacturer; 37,500 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug
2008MazdaRX-81.3LR2N/ATrailing; Gap 0.048"; Actual OE Manufacturer; 37,500 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug
2007MazdaRX-81.3LR2N/ATrailing; Gap 0.048"; Actual OE Manufacturer; 37,500 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug
2006MazdaRX-81.3LR2N/ATrailing; Gap 0.048"; Actual OE Manufacturer; 37,500 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug
2005MazdaRX-81.3LR2N/ATrailing; Gap 0.048"; Actual OE Manufacturer; 37,500 mi OE Mfr Recommended Service Interval; Laser Iridium Spark Plug
2004MazdaRX-81.3LR2N/ATrailing; Gap 0.048"; Actual OE Manufacturer; 37,500 mi OE Mfr Recommended Service Interval; Laser Iridium 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:

0000-18-N3Y157526701IRT01-31N3Y1-18-110N3Y1-18-110AN3Y1-18-110A-9UN3Y1-18-110U-9UN3Y4-18-110N3Y4-18-110A

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