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Product Information

Product Details
Part No. SP-431
Warranty Details (2 YR REPLACEMENT IF DEFECTIVE)
The Standard Spark Plug by Motorcraft is the same high-quality part installed when your engine first rolled off the assembly line, ensuring a perfect fit and optimal performance. Designed with a 30,000-mile service interval, it features a copper core electrode and a nickel chromium alloy side electrode, providing exceptional heat dissipation and long-lasting durability. The built-in resistor minimizes radio frequency interference (RFI) while reducing electrode erosion, ensuring consistent performance over time. Its copper-glass seal securely bonds the insulator and terminal post center electrode, delivering the full required voltage at the spark gap while maintaining a gas-tight seal. With a tapered seat type for precise installation, this spark plug is engineered to meet the high standards set by Ford Motor Company, making it a reliable choice for maintaining your vehicle's performance.

Product Features:
  • Same part installed when the engine rolled off the assembly line
  • 30,000-mile service interval
  • Copper core electrode and nickel chromium alloy side electrode for excellent heat dissipation and durability.
  • Resistor reduces radio frequency interference (RFI) and electrode erosion
  • Copper-glass seal bonds insulator and terminal post center electrode together to ensure full required voltage at spark gap and a gas-tight seal
Specifications
Electrode Core Material:
Copper Core

Electrode Tip Material:
Inconel

Ground Strap Quantity:
1

Insulator Type:
Standard

Manufacturer Heat Range:
6

Reach:
.468 in

Resistor:
Yes

Seat Type:
Tapered

Thread Diameter:
18 mm

Tip Configuration:
Copper Core

Type:
Copper Core Spark Plug

Wrench Diameter:
13/16 in
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