Part #: 7348

NGK 7348 Spark Plug

Iridium IX Spark Plug
7 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Iridium IX Spark Plug
Fitment: Ford, Mustang
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NGK Iridium IX Spark Plug Overview

The NGK Iridium IX Spark Plug 7348 is engineered for reliable ignition performance in Ford Mustang vehicles. Designed with advanced materials and precise specifications, this spark plug supports efficient combustion and consistent engine operation.

  • Iridium center electrode tip for enhanced durability
  • Taper cut ground electrode tip design
  • Copper core center electrode for improved conductivity
  • Standard ground configuration with nickel ground electrode core
  • Non-removable nut electrical terminal type
  • Pre-gap size of 0.040 inches for optimal spark
  • Tapered seat type and 14mm thread diameter
  • Hex size of 5/8 inch for installation
  • Manufacturer heat range 6 suitable for Ford Mustang engines

Detailed Product Description

The NGK Iridium IX Spark Plug 7348 features a fine iridium center electrode tip that provides a stable and efficient spark, contributing to improved combustion and fuel efficiency. The copper core center electrode enhances electrical conductivity, while the taper cut ground electrode tip design ensures consistent spark exposure. The spark plug’s nickel ground electrode core and standard ground configuration offer durability and reliable grounding. With a pre-gap size of 0.040 inches and a tapered seat type, this spark plug is optimized for precise ignition timing and secure fitment. The non-removable nut electrical terminal type simplifies installation and maintenance.

The Iridium IX Spark Plug line from NGK is designed to deliver long-lasting performance and durability. Iridium, being a hard and heat-resistant metal, allows for a finer electrode tip that reduces voltage requirements and improves ignitability. This product line is particularly suited for performance-oriented vehicles like the Ford Mustang, where consistent ignition and engine responsiveness are critical.

Compatible Vehicles and Applications

  • Compatible with Ford Mustang models requiring part number 7348
  • Ideal for secondary ignition system replacement
  • Suitable for addressing ignition misfires and rough idling
  • Helps improve cold start performance and throttle response
  • Can resolve issues related to poor fuel economy and engine hesitation

Installation Notes and Tips

  • Ensure the spark plug gap is set to 0.040 inches before installation
  • Use a 5/8 inch socket wrench for proper tightening
  • Apply anti-seize compound on threads if recommended by the vehicle manufacturer
  • Torque to manufacturer specifications to avoid damage to the tapered seat
  • Inspect ignition wires and boots during replacement for optimal performance

Quality Assurance and Warranty

NGK spark plugs, including the Iridium IX Spark Plug 7348, are manufactured to meet strict quality standards for durability and performance. The use of premium materials such as iridium and copper ensures long service life and consistent ignition. While specific warranty details may vary, NGK products typically come with manufacturer-backed quality assurance to support reliable operation in compatible Ford Mustang vehicles.

BrandNGK
Part Number7348
PositionIridium IX Spark Plug
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialIridium
Electrical Terminal TypeNon-Removable Nut
Ground ConfigurationStandard
Ground Electrode Core MaterialNickel
Ground Electrode Quantity1
Ground Electrode Tip DesignTaper Cut
Hex Size5/8
Insulator Height53.00
Manufacturer Heat Range6
Part NumberUR6IX
Pre-Gap Size.040
Reach.46
Resistance5000
Seat TypeTapered
Stock Number7348
Thread Diameter14.00

This part fits 7 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1995FordMustang5.8LV8N/ASet spark plug gap to 0.050 inches.; Iridium IX Spark Plug
1972FordMustangN/AH.O.; Gap 0.034"; Iridium IX Spark Plug
1972FordMustang5.0LV8N/AH.O.; Gap 0.034"; Iridium IX Spark Plug
1971FordMustangN/AH.O.; Gap 0.034"; Iridium IX Spark Plug
1971FordMustang5.0LV8N/AH.O.; Gap 0.034"; Iridium IX Spark Plug
1970FordMustangN/AH.O.; Gap 0.034"; Iridium IX Spark Plug
1970FordMustang5.0LV8N/AH.O.; Gap 0.034"; Iridium IX 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:

41TS45117348ARF22CUHGR8BQIITF20V9YC

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