Motorcraft Copper Core Spark Plugs 2.3L/ GT-40 Head Mustang 79-82

Replace worn ignition components in your 1979-1982 Mustang with these Motorcraft copper core spark plugs! Genuine Ford Motorcraft construction provides a direct-fit replacement for 2.3L engines.

Features and Benefits:
- Genuine Ford construction provides factory-style fit and function
- Copper electrode core supports dependable performance
- Inconel electrode tip provides durability under combustion temperatures
- Direct-fit design replaces worn original spark plugs
- Built-in resistor helps suppress electrical interference
- Single ground strap provides the original-style electrode configuration
- Compatible with 2.3L engines and GT-40 cylinder heads

They feature a copper electrode core, Inconel electrode tip, tapered seat, and 14mm thread diameter for factory-style fit and function. These spark plugs also work with 5.0L Mustangs equipped with GT-40 cylinder heads.

Vehicle Fitment:
- 1979-1982 Mustang 2.3L
*Also fits 5.0L Mustangs only with GT-40 cylinder heads.

Specifications:
- Electrode Core Material: Copper Core
- Electrode Tip Material: Inconel
- Ground Strap Quantity: 1
- Insulator Type: Standard
- Manufacturer Heat Range: 5
- Reach: .460"
- Resistor: Yes
- Seat Type: Tapered
- Thread Diameter: 14 mm
- Tip Configuration: Copper Core
- Type: Copper Core Spark Plug
- Wrench Diameter: .708"