C-Tzu Mass Air Flow Sensor MAF for Ford Escape/Explorer/Focus — Fits OE 74-50011, PBT 40% Glass

High-precision C-Tzu Mass Air Flow (MAF) sensor engineered as a direct OEM-style replacement to restore accurate airflow readings and improve engine drivability.

If your vehicle shows hesitation, rough idle, stalling, or reduced fuel economy and diagnostics point to the mass air flow sensor, this C-Tzu replacement matches the fit and function of the factory unit. Built to replace OE numbers such as 74-50011, XF2Z12B579AB, and XF2Z12B579BA, the assembly is compatible with many Ford, Mazda, Mercury, and related models from the late 1990s through the 2000s. The housing uses PBT with 40% fiberglass for thermal stability and corrosion resistance, and C-Tzu backs the part with a one-year after-sale service for peace of mind.

How will this MAF sensor affect engine performance?

Replacing a failing MAF sensor with this C-Tzu unit helps the engine control module receive accurate airflow data, enabling correct fuel trims and combustion. You should notice smoother idling and fewer misfires after installation and ECU adaptation.

• Restores accurate air intake measurements to improve fuel-to-air ratio
• Reduces hesitation and rough running associated with bad MAF readings
• Helps the ECU re-learn correct fuel trim values after replacement

Will this part fit my vehicle and replace my OE number?

This MAF sensor is made to be an OEM-equivalent replacement that lists many cross-reference part numbers for compatibility. Always verify fitment by comparing your vehicle's OE number to the replacement list and connector style before ordering.

• Cross-replaces OE numbers like 74-50011 and XF2Z12B579AB/BA
• Fits affected Ford, Mazda, Mercury models including Escape, Explorer, Focus, Tribute
• Confirm plug shape and mounting points for a direct swap

What materials and construction make this MAF sensor reliable?

C-Tzu constructs the sensor housing from PBT reinforced with 40% fiberglass to withstand heat and resist corrosion under the hood. The vacuum molding process reduces friction and improves dimensional stability, helping maintain long-term measurement accuracy.

• PBT material with 40% fiberglass for heat resistance and toughness
• Vacuum molding ensures precise, low-friction internal surfaces
• Engineered for OEM-quality finish and consistent electrical connections

What after-sale support and installation tips are provided?

C-Tzu offers a one-year after-sale service if the product develops defects such as cracking; contact the seller promptly for assistance. For best results, clean intake tubing, check for vacuum leaks, and confirm the ECU adaptation or reset per vehicle service guidelines after installation.

• One-year after-sale coverage for manufacturing issues
• Recommended to inspect intake and vacuum lines during installation
• Clear ECU codes/reset adaptation as needed after replacement

Who is this for: This C-Tzu MAF sensor is intended for vehicle owners, DIY mechanics, and professional technicians seeking a dependable OEM-style replacement for late-1990s to mid-2000s Ford, Mazda, and Mercury vehicles. It fits drivers who need a durable, heat-resistant sensor to correct airflow measurement problems, those replacing a documented faulty MAF, or anyone performing preventive maintenance on air intake electronics. Be sure to confirm your vehicle’s OE part number and connector before purchasing to ensure a smooth, direct installation.