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NGK 7510 Iridium IX Spark Plug Single Iridium Fine Wire

(Ford F-150 1975-86, Mustang 1964-73, 1979-82, F-250 1955-86, Bronco 1966-74, 1980-86, Thunderbird 1955-73, 1980-82, F-350 1955-59, 1961-86 + 94 more models)

Manufacturer

Picture for manufacturer NGK Spark Plugs

Part Number

7510
17 reviews
Sale Price

$7.92

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The NGK 7510 Iridium IX Spark Plug is engineered for the performance enthusiast who demands superior ignition performance. Featuring a fine wire iridium center electrode, this plug delivers extreme ignitability, outstanding acceleration, and high fuel efficiency. The iridium alloy tip is six times harder than platinum with an exceptionally high melting point, making it well-suited to the demands of modern and classic performance engines alike. Exceptional anti-fouling characteristics help maintain consistent performance over the life of the plug. Also known by service number WR5IX.

Key Features:

  • Single iridium fine wire center electrode — six times harder than platinum for outstanding durability
  • Taper cut ground electrode — improves starting, idling, and throttle response
  • Mid-projection center electrode design — promotes extreme ignitability and efficient combustion
  • Copper core center electrode for superior heat transfer
  • Nickel ground electrode with J-gap ground configuration
  • Ceramic insulator for reliable electrical isolation
  • Built-in resistor (5,000 ohms) suppresses ignition interference
  • M18 x 1.5 metric thread, 13/16" hex, 0.429" reach, tapered seat — no washer required
  • Pre-gapped at 0.040 in. from the factory
  • Non-removable nut terminal; heat range 5
  • Grade Type: Performance

NGK is the world's largest OE spark plug manufacturer, and the Iridium IX line reflects that heritage of quality and precision. This plug fits a wide range of classic and performance applications spanning 1952–1986 Ford, Mercury, and Lincoln vehicles. For even greater ignition performance, NGK recommends considering an upgrade to the NGK Ruthenium HX series.

Products specifications

Fits

Ford F-150 1975-86, Mustang 1964-73, 1979-82, F-250 1955-86, Bronco 1966-74, 1980-86, Thunderbird 1955-73, 1980-82, F-350 1955-59, 1961-86, Maverick 1970-77, Galaxie 500 1968-74, F-100 1955-83, F-250 Pickup 1961-74, Fairlane 1955-70 + 89 more models

Stock Number

7510

Part Number

WR5IX

Seat Type

Tapered

Electrical Terminal Type

Non-Removable Nut

Ground Electrode Core Material

Nickel

Hex Size

13/16

Manufacturer Heat Range

5

Ground Electrode Quantity

1

Center Electrode Tip Material

Iridium

Thread Diameter

18.00

Ground Configuration

Standard

Pre-Gap Size

.040

Center Electrode Core Material

Copper

Insulator Height

60.00

Reach

.429

Resistance

5000

Ground Electrode Tip Design

Taper Cut

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