Choosing the right spark plugs for the 3.5L EcoBoost V6 in the 2014 Ford F-150 can help maximize performance, efficiency, and reliability. This guide highlights five highly compatible options from trusted brands, focusing on iridium and platinum designs that suit EcoBoost engines. Each product section includes an Amazon link, an image, and key features to help compare at a glance.
| Product | Brand | Vehicle Fit | Type |
|---|---|---|---|
| 6 pc NGK Iridium IX Spark Plugs | Sixity Auto | Ford F-150 3.5L V6 (2011-2019) | Iridium |
| Motorcraft SP548 Spark Plug Set (8) | Ford | F-150 (2011-2017) | OEM |
| Yoshi Motors DG549 UF646 (Set of 6) | Yoshi Motors | EcoBoost 3.5L V6 (2011-2017) | Coil+Plugs |
| Champion Iridium Spark Plugs (6) | Sixity Auto | F-150 2.7L/3.5L (2011-2020) | Iridium |
| A-Premium Iridium Platinum Spark Plugs (Pack of 6) | A-Premium | F-150 2011-2019 | Iridium/Platinum |
The following sections present each option with a concise overview, notable compatibility details, and the features that most affect performance and reliability for EcoBoost engines.
6 pc NGK Iridium IX Spark Plugs For F-150 EcoBoost

This 6-pack uses NGK Iridium IX plugs designed for Ford F-150 3.5L V6 models from 2011 through 2019. The set emphasizes genuine NGK parts with included hardware and packaging, offering durable performance suitable for EcoBoost engines where reliable ignition is essential. The iridium alloy supports long life and consistent firing, helping reduce misfires and improve throttle response under load.
Motorcraft SP548 Spark Plugs, OEM-Quality

Manufactured by Ford Motor Company, this SP548 set targets F-150 models from 2011 to 2017. As OEM parts, they emphasize the fit, durability, and reliability expected from factory replacements. The product listing stresses research to confirm compatibility across engine, drivetrain, and trim levels, aligning with OEM standards for long-term performance in EcoBoost applications.
Yoshi Motors DG549 UF646 Set Of 6

This bundle combines ignition coils with compatible NGK Iridium plugs for the EcoBoost Ford F-150 and related 3.5L V6 models (2011-2017). It emphasizes a direct-fit replacement approach to reduce installation time and potential misfires. The listing notes cross-compatibility details and highlights the goal of restoring engine performance and drivability while avoiding the costs of diagnostic repairs from faulty ignition components.
Champion Iridium Spark Plugs 6-Pack

These Champion Iridium spark plugs are designed to fit Ford F-150 models with 2.7L and 3.5L V6 engines from 2011 through 2020. Champion emphasizes long life and reliable ignition, using durable metals intended to withstand the combustion environment of modern engines. The product positioning focuses on OE-like performance and a fit for a wide range of Ford engines, including EcoBoost variants.
A-Premium Iridium Platinum Spark Plugs (Pack of 6)

A-Premium offers a six-pack of iridium-platinum spark plugs, marketed for broad compatibility with Ford F-150 models (2011-2019) and several other models. The listing includes multiple reference numbers and vehicle-fit notes to cover a range of configurations. Iridium/platinum pairing aims to provide improved durability and stable performance across varied driving conditions, including EcoBoost turbo applications.
Buying Guide
Key purchase considerations for spark plugs in EcoBoost-powered F-150s include material, heat range, gap, and compatibility. Iridium plugs tend to offer longer life and stable ignition under boost, but correct heat range and gap are essential for optimal performance. OEM parts can provide a factory-fit experience, while high-grade aftermarket options may save cost and deliver performance gains in certain driving conditions. Consider these factors when choosing:
- Engine compatibility: Verify the exact model year range and 3.5L EcoBoost configuration to ensure a proper fit.
- Plug material: Iridium and platinum plugs provide longevity; iridium is common for high-performance turbo engines.
- Gap and torque: Maintain recommended electrode gap and proper torque specification to avoid misfires or damage.
- OEM vs aftermarket: OEM parts often guarantee fit, while trusted aftermarket brands may offer cost or availability advantages.
- Warranty and packaging: Check for included hardware and packaging, especially if the set requires installation hardware.
When selecting a spark plug set, balance durability, performance, and maintenance intervals with your vehicle usage. For EcoBoost engines, a plug that maintains stable ignition under boost and high heat can contribute to smoother acceleration and consistent idle, especially under load or towing scenarios.