Brisk XER10S Silver Racing Spark Plug – 1 Step Colder (2021–2026 F-150 5.0L)

Performance Spark Upgrade for Gen 4 Coyote Engines

The Brisk XER10S Silver Racing Spark Plug is engineered specifically for 2021–2026 Ford F-150 5.0L Gen 4 Coyote engines. Designed as a 1 heat range colder plug, it provides improved heat control and ignition performance for trucks running increased power levels or tuning.

Silver Core Technology for Maximum Spark Energy

Built with Brisk’s advanced silver center electrode, the XER10S delivers superior electrical and thermal conductivity compared to traditional materials. This results in a stronger spark, improved combustion efficiency, and enhanced throttle response.

Optimized for Tuned & Performance Applications

With a slightly colder heat range, these plugs are ideal for tuned F-150s, bolt-on upgrades, and light forced induction setups. They help reduce the risk of detonation while maintaining excellent drivability.

Improved Ignition Efficiency & Reliability

The XER10S requires less ignition voltage, reducing strain on coils while ensuring consistent spark under load. It also offers excellent resistance to fouling, making it suitable for both daily driving and performance use.

Key Features

• 1 heat range colder than stock
• Designed for Gen 4 Coyote 5.0L engines
• Silver center electrode for superior conductivity
• Improved spark energy and combustion efficiency
• Enhanced throttle response and performance
• Reduced ignition system stress
• Excellent heat dissipation and durability

Technical Specifications

• Thread Size: 14mm
• Seat Type: Gasket
• Resistor: Yes

Vehicle Fitment

• 2021 Ford F-150 5.0L
• 2022 Ford F-150 5.0L
• 2023 Ford F-150 5.0L
• 2024 Ford F-150 5.0L
• 2025 Ford F-150 5.0L
• 2026 Ford F-150 5.0L

Important Notes

• Sold individually – quantity of 8 required for a full set
• Recommended torque specification: 9.5 ft-lbs
• Ideal for tuned or lightly modified applications

For F-150 owners looking to improve ignition performance and reliability on their Gen 4 Coyote engine, the Brisk XER10S spark plug is a proven upgrade for both street and performance use.