Oxygen Sensor 4L3Z-9G444-AA For Ford F-150 And Lincoln Mark LT Heated Direct-Fit Replacement

Upgrade your Ford F-150 or Lincoln Mark LT with the IWOKPHD 4L3Z-9G444-AA Oxygen Sensor, a trusted direct-fit replacement designed for models from 2004 to 2008. This heated, piezoelectric oxygen sensor delivers precise oxygen readings across upstream and downstream circuits, helping your engine maintain the correct air-fuel ratio, reduce emissions, and sustain optimal performance. With OE cross references and multiple part-number compatibility (including 4L3Z-9G444-AA, XR3Z-9G444-JA, 1FAA-18861, and 2344401), it’s engineered to match factory connectors and mounting points for a seamless install. Whether you’re addressing a failing sensor, a check-engine light, or routine maintenance, this sensor supports efficient fuel management across V6 and V8 configurations (4.2L, 4.6L, 5.4L).

Benefits & Tips

• Restore precise oxygen readings to optimize the air-fuel ratio, improving fuel economy and lowering emissions.
• Direct-fit replacement for 2004–2008 Ford F-150 (V8 4.6L/5.4L, and V6 4.2L) and 2006–2008 Lincoln Mark LT (V8 5.4L) for quicker, hassle-free installation.
• Cross-referenced with multiple OE-style part numbers to help you verify compatibility before purchase and reduce diagnostic guesswork.

Product specifications

• Brand Name: IWOKPHD
• Fits: Ford F-150, Lincoln Mark LT; 2004–2008 Ford F-150 (V8 4.6L, 5.4L); 2005–2008 F-150 (V6 4.2L); 2006–2008 F-150 (V6 4.2L / V8 4.6L / 5.4L); 2006 Lincoln Mark LT (V8 5.4L)
• Sensor Type: Piezoelectric
• Type: Heating Type
• OEM No.: 4L3Z-9G444-AA
• Other part numbers: 4L3Z9G444AA, XR3Z-9G444-JA, XR3Z9G444JA, XR3Z 9G444 JA, 1FAA-18861, 2131317, 2131495, 5S3327, 22524
• Measuring Range: 4L3Z-9G444-AA, XR3Z-9G444-JA, XR3Z9G444JA, XR3Z 9G444 JA, 1FAA-18861
• Hysteresis: ES20151, SU2204, SG459
• Repeatability: Front, Rear, Upstream & Downstream
• Origin: Mainland China
• Year: 2004–2008
• Warranty: 2 years (Replacement Warranty)
• Application: See above compatibility list for Ford F-150 and Lincoln Mark LT

Package includes:

• 1 x Oxygen Sensor (4L3Z-9G444-AA)

Warnings / Reminders

• Please check the picture and the part number carefully to make sure that you bought the right part for your car.
• If you cannot determine which item fits your car, please send the Part Number or the Original product photos to us for confirmation before ordering.
• The only way to be 100% sure the part will fit is to check your original part. We will check for you and reply within 24 hours.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty.

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