OYEAUTO Mass Air Flow Sensor MAF 3L3A-12B579-BA for Ford F150 F250 — 15ms Response, OEM Fit

OYEAUTO Mass Air Flow Sensor (3L3A-12B579-BA / AFLS131) is a direct-fit replacement MAF sensor engineered to restore accurate air-measurement and engine performance for many Ford, Lincoln, Mercury and select Mazda models.

When a vehicle's mass air flow sensor begins to fail it can trigger rough idling, poor fuel economy, or a check-engine light. This OYEAUTO unit matches common OEM dimensions and electrical connectors for easy swapping into vehicles listed in the fitment guide, and it’s manufactured with upgraded components and a rapid 15 ms response time to deliver reliable airflow readings under varied driving conditions.

Will this MAF sensor fit my Ford, Lincoln, Mercury or Mazda?

Compatibility depends on year, make and model; the product supports a wide range of Ford full-size and passenger models plus Lincoln, Mercury and some Mazda applications. Always compare the OE number and connector shape of your original sensor to confirm fitment.

• Fits many Ford models: F150, F250, F350, F450, F550, Crown Victoria, E-series vans, Edge, Escape, Explorer, Mustang, Ranger, Taurus, Focus, Fusion and more.
• Lincoln coverage includes LS, Mark LT, MKS, MKT, MKX, MKZ and Navigator/Town Car models.
• Mercury and Mazda listed models include Grand Marquis, Mariner, Milan, Mountaineer and Mazda 6, B-series trucks, CX-9.
• Compare OE numbers such as 3L3F12B579BA, 6L3Z-12B579-A and other listed equivalents before purchase.

How difficult is the installation and what tools are required?

Installation is straightforward for most DIYers and typically takes about 10 minutes. Basic tools and simple safety steps are all that’s needed to replace the sensor and clear the check-engine light.

• Tools: small socket set or screwdriver to remove the MAF housing clamp and electrical connector.
• Procedure: disconnect battery ground briefly, unplug sensor connector, remove old sensor, fit new sensor, reconnect connector and battery.
• Tip: resetting the battery ground or using an OBD-II code reader will clear the engine light after replacement.

What performance and quality features does this OYEAUTO sensor offer?

The sensor is produced to meet OEM-level specifications while using modern materials for improved durability. It delivers a fast 15 ms response time and holds output curve tolerance under 2%, helping ensure accurate fuel-air calculations.

• Fast-response sensing element for timely air-flow measurement.
• Output curve tolerance under 2% for consistent readings across operating range.
• Constructed from quality materials and tested to align with OEM fit and function.
• Includes extensive OE number cross-references for easy verification.

What warranty and customer support does OYEAUTO provide?

OYEAUTO backs this mass air flow sensor with a 12-month warranty and customer support through the seller channel. If the sensor fails during the warranty period, you can request a refund or a replacement to resolve the issue.

• 12-month limited warranty covering manufacturing defects.
• Support via the Amazon seller contact system for returns or replacements.
• Instructions provided for basic installation and clearing the check-engine light.

Who this is for: The OYEAUTO MAF sensor is intended for vehicle owners, independent mechanics and fleet managers who need a cost-effective, direct-fit replacement for failing or unreliable mass air flow sensors on compatible Ford, Lincoln, Mercury and selected Mazda vehicles. It’s suitable for those comfortable performing a short DIY repair or for shops seeking an affordable aftermarket replacement that matches common OE references and connector types.