1L3F-12B579-AB OEM Mass Airflow Sensor For Ford F150 SVT Lightning Mustang Cobra
Description

MAF Sensor – 1L3Z-12B579-AA

For 2000–2004 Ford F-150 & 2003–2004 Mustang • 4.6L / 5.4L V8 • New

✅ Brand New Mass Air Flow (MAF) Sensor – Direct OEM Replacement

This is a brand-new, high-quality Mass Air Flow (MAF) sensor matching Ford OEM part number 1L3Z-12B579-AA and numerous cross-references.
Designed for 4.6L and 5.4L Modular V8 engines, it accurately measures intake airflow to ensure proper fuel delivery, throttle response, and emissions control.

Compatible Part Numbers:

1L3Z-12B579-AA, 1L3Z12B579AA, 1L3F12B579AB, 1L3F12B579-AB,
14900269-101, 14900269-102, 14900269-103, 49-00269ON, 49-00269 ON,
AFH9002, MAF0046, 20893M, 74-50028, 1L3Z12B579AARM

Confirmed Vehicle Fitment:

Ford F-150:
• 2000–2003: 5.4L V8 (330 cu.in.) – Gas, CNG, Bi-Fuel, Supercharged
• 2001–2004: 5.4L V8 – Gasoline (SOHC)
• 2004 F-150 Heritage: 5.4L V8 – Gas, CNG, Bi-Fuel

Ford Mustang:
• 2003–2004: 4.6L V8 (281 cu.in.) – Naturally Aspirated or Supercharged (DOHC)

✔ Fits both standard and high-output (Supercharged) applications
❌ Not for 4.2L V6, 5.0L Coyote, or diesel engines

Common Failure Symptoms:

  • ⚠️ Check Engine Light – Codes: P0100, P0101, P0102, P0103, P0171, P0174
  • Hesitation or lack of power during acceleration
  • ⛽ Poor fuel economy
  • Rough idle, stalling, or hard starts
  • Black exhaust smoke (rich condition)

Key Features:

  • ✅ Exact replacement for OEM 1L3Z-12B579-AA
  • ✅ Precision hot-wire sensing element
  • ✅ Plug-and-play – no wiring or programming needed
  • ✅ Sealed electronics resist oil, dust, and moisture
  • ✅ Compatible with supercharged (blower) and CNG systems

Installation Notes:

  • Located between air filter box and throttle body
  • Do NOT touch the sensor wires—skin oils can cause drift/failure
  • Clear fault codes after installation using an OBD2 scanner
  • Replace air filter if dirty or oiled (K&N filters can contaminate MAF)

Restore smooth performance and fuel efficiency with this reliable MAF sensor—ideal for daily drivers, work trucks, and modified Mustangs alike.

❗ Please compare your original sensor’s part number to those listed above. While this MAF fits many 4.6L/5.4L applications, engine management differences (especially in CNG/supercharged models) require exact matching.

Disclaimer: “Ford,” “F-150,” and “Mustang” are trademarks of Ford Motor Company. This product is not affiliated with Ford but meets OEM specifications.

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We accept PayPal via eBay Secure Check-Out only.
Payment is expected within 7 days of auction close. Unpaid Items will be forfeited per eBay.
Immediate payment needs to be processed for items with Add to Cart option so that any promotional discounts can be applied to your order immediately.
Notice:
1 .We do everything we can to ship your orders out as soon as possible.
2. Transportation and handling:
We will process the order within 1-2 working days after payment is clear.
--- For US warehouse delivery, it usually takes 3-7 days of delivery time.
Please review the customization and eBay policies in your city area for more information.
Our 30-day Satisfaction Guarantee assures our customers that they will receive all orders promptly and exactly as described. In addition, it allows customers to return new and unused products in their original factory condition for any reason within 30 days from the date of purchase.
1. All returns must be contact us and have a return. Unauthorized returns will not be accepted.
2. Buyers are responsible for appropriate packing, returning shipping cost, insurance and returning the item in "new" condition. Used items will not be accepted for return.
3. We will replace the returning item with an identical item, issue a full store credit or a full refund.
Our working time: Monday to Saturday, 9:00~18:30.
For inquires and customer support, please send your email via ebay email system.
All emails will be responded to within 24 hours during business days.
We sincerely hope you can give us ALL-5 STAR feedback after your purchase, and hope you have good days with our products.
If you have problems with our products, please don't open request or leave negative feedback before communication, you can feel free to contact us first, we will definitely try our best to help you. Hope for best understanding.
  • We sincerely hope you can give us ALL-5 STAR feedback after your purchase, and hope you have good days with our products.
    If you have problems with our products, please don't open request or leave negative feedback before communication, you can feel free to contact us first, we will definitely try our best to help you. Hope for best understanding.
  • We accept PayPal via eBay Secure Check-Out only.
    Payment is expected within 7 days of auction close. Unpaid Items will be forfeited per eBay.
    Immediate payment needs to be processed for items with Add to Cart option so that any promotional discounts can be applied to your order immediately.
  • Notice:
    1 .We do everything we can to ship your orders out as soon as possible.
    2. Transportation and handling:
    We will process the order within 1-2 working days after payment is clear.
    --- For US warehouse delivery, it usually takes 3-7 days of delivery time.
    Please review the customization and eBay policies in your city area for more information.
  • Our 30-day Satisfaction Guarantee assures our customers that they will receive all orders promptly and exactly as described. In addition, it allows customers to return new and unused products in their original factory condition for any reason within 30 days from the date of purchase.
    1. All returns must be contact us and have a return. Unauthorized returns will not be accepted.
    2. Buyers are responsible for appropriate packing, returning shipping cost, insurance and returning the item in "new" condition. Used items will not be accepted for return.
    3. We will replace the returning item with an identical item, issue a full store credit or a full refund.
  • Our working time: Monday to Saturday, 9:00~18:30.
    For inquires and customer support, please send your email via ebay email system.
    All emails will be responded to within 24 hours during business days.