Description
High-Performance Spark Plug. The Accel HP Copper Spark Plugs with Stock Heat Range provide reliable ignition performance designed for high combustion pressures. These spark plugs deliver a strong spark to improve combustion efficiency and minimize misfires, making them ideal for both street and strip applications.
Construction and Appearance. Featuring a copper core that offers superior conductivity and heat dissipation compared to platinum and iridium plugs, these plugs also incorporate machine rolled threads for accurate engagement and torque retention. The design includes a “C” cut that exposes the spark kernel to promote a better burn, with a tapered seat and a projected tip for enhanced ignition performance.
Installation. Installation is straightforward with no special tools or modifications required. The spark plugs are designed to fit OEM specifications and torque requirements without drilling or additional adjustments.
Application. Specifically designed to fit 2011 through 2026 3.5L EcoBoost F-150 engines, providing direct replacement with a stock heat range for optimal performance.
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Accel 578-6
CA Residents: WARNING: Cancer and Reproductive Harm
- Copper Core Better Conductor Than Platinum And Iridium
- Delivers A Stronger Spark In High Performance Applications
- Copper Dissipates Heat Better Reducing Misfire Risk
- Gapable Design Allows Spark Gap Adjustment
- Machine Rolled Threads For Precise Engagement And Torque Retention
- Stock Heat Range
- Standard Length With 1 Inch Reach
- Projected Tip For Enhanced Spark Exposure
- Resistor Type Spark Plug
- Tapered Seat
- Hex Size 5/8 Inch With Thread Pitch 1.25 MM
- Torque Specification 7.2-14.5 lb.ft.
- Fits 11-26 3.5L EcoBoost F-150
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