O2 Oxygen Sensor Upstream Downstream for Ford F-150 (2009-2010) 5.4L

Direct-Fit Upstream & Downstream Oxygen Sensor Kit for 2009-2010 Ford F-150 (P415)

What it Does: This 4-piece upstream and downstream oxygen sensor kit measures pre- and post-catalyst exhaust oxygen levels on the 2009-2010 Ford F-150 P415 equipped with the 5.4L 3V Triton V8 to maintain closed-loop air-fuel ratio precision and verify catalytic converter efficiency.

The Stock Ford F-150 Oxygen Sensor Failure

Factory oxygen sensors on the P415 F-150 with the 5.4L 3V Triton V8 endure severe thermal cycling, carbon soot buildup, and exhaust condensation near the manifolds. Over time, internal zirconia sensing elements suffer sluggish voltage switching while internal heater circuits burn out from sustained heat soak and vibration. Biased Bank 1 and Bank 2 signals skew PCM fuel trims, triggering P0135, P0155, P0171, or P0174 codes and risking catalytic converter damage.

Common Symptoms of a Failing OEM Oxygen Sensor

• Check Engine Light / DTCs: Triggered P0135/P0155 heater circuit faults, P0171/P0174 lean bank codes, or P0420/P0430 catalyst codes from sluggish sensor switching.
• Rich Running & Misfires: Rough idle, throttle hesitation, and black exhaust soot caused by PCM over-fueling when degraded upstream sensors report false lean mixtures.
• Fuel Economy & Emissions Failure: Noticeable drop in MPG, sulfur exhaust odor from unburned fuel, and failed OBD-II readiness monitors during state emissions inspections.

The Direct-Fit Heated Zirconia Sensor Solution

Replacing all four sensors simultaneously with this matched SU-000088 kit restores uniform Bank 1 and Bank 2 voltage response across both upstream fuel-control and downstream catalyst-monitoring positions. Each direct-fit sensor utilizes a corrosion-resistant stainless steel housing, high-temperature ceramic protective sleeve, and fast-acting internal heater engineered for heavy exhaust temperatures. Pre-terminated OEM weatherpack connectors and factory-length wiring harnesses eliminate splicing for direct bolt-in installation into stock exhaust bungs.

What's Included

• 2x Upstream Oxygen Sensors
• 2x Downstream Oxygen Sensors

Technical Specifications

Compatibility

• 2009 Ford F-150 (5.4L V8)
• 2010 Ford F-150 (5.4L V8)

Frequently Asked Questions & Fitment Warnings

Does this fit the P415 F-150?

Yes. This is a direct fit for the 2009-2010 Ford F-150 equipped with the 5.4L 3V Triton V8 engine. Excludes 4.6L V8 models and 2011+ 3.5L EcoBoost or 5.0L engines; confirm engine displacement before ordering.

Will this kit clear P0135, P0171, and P0420 codes?

Yes, if faulty sensors caused the code. Replacing all four sensors restores closed-loop fuel trims and resolves P0135/P0155 heater circuit faults, though persistent P0420/P0430 codes indicate damaged catalytic converter substrates.

Is wire splicing or special prep required for installation?

No splicing is required. Each sensor in the SU-000088 kit features OEM-matched plugs; apply oxygen-sensor-safe anti-seize strictly to the threads (never the sensor tip) and torque to factory specification.

The Ford Heavy-Duty Standard

Engineered to endure extreme exhaust gas temperatures during towing and heavy hauling, this matched 4-piece sensor kit keeps the 5.4L 3V Triton V8 operating at peak stoichiometric efficiency. Restore crisp closed-loop PCM fuel control and trouble-free emissions readiness on your P415 F-150.