Ford Racing M-12405-M50A Cold Spark Plug Set for 11-23 Ford Mustang GT/F150 5.0L

Vehicle Fitment

• 2011-2020 Ford F-150 (Regular/Crew/Extended Cab; 5.0 L Coyote V8; RWD/4WD)
• 2011-2023 Ford Mustang GT (5.0 L Coyote V8; Fastback/Coupe/Convertible; RWD)

Fitment Notes

• One heat-range colder than OEM--designed for Coyote engines under forced induction or high rpm
• Pre-gapped to 0.035" for boosted applications
• Competition/off-highway use only--installation may violate emission regulations for street-driven vehicles

Features

• Iridium-tipped electrodes for consistent and reliable spark
• Copper-core construction for enhanced conductivity
• One heat-range colder supports sustained high boost or rpm
• Pre-gapped to optimal 0.035" for performance use
• Derived from Cobra Jet race engine tuning--race-proven design
• Set of 8 plugs ensures full engine coverage
• Ford Performance engineered--OEM-level quality
• Backed by Ford Racing for competition durability

Specifications

• Part Number: M-12405-M50A
• Engine: 5.0 L Coyote V8
• Thread Size: 14 mm
• Spark Gap: 0.035" (pre-set)
• Tip Material: Iridium
• Core Material: Copper
• Quantity: 8 plugs

Included Components

• 8x Ford Performance cold-spark plugs (M-12405-M50A)

Product Description

The Ford Racing M-12405-M50A spark plug set is purpose-built for 5.0 L Coyote engines found in 2011-2020 F-150s and 2011-2023 Mustang GTs. Precision-engineered one heat range colder than stock, these iridium-copper plugs are pre-gapped to 0.035" and tuned for forced induction, nitrous, or high-rpm use--ensuring optimal combustion stability and preventing spark blowout under load.

Developed from Cobra Jet racing applications and Ford Performance supercharger kits, these plugs are a full set of eight, drop-in replacements for boosted or race Coyote builds. **Warning**: intended for competition or off-road use only--installation on public road vehicles may violate emissions regulations. Trust Ford Performance parts to deliver reliability and consistency in high-demand scenarios.