4-Piece Rear Bumper Parking Assist Sensor Set

Reliable Proximity Detection for 2009-2014 Ford F150 Trucks

Restore your truck’s safety and convenience features with this 4-Piece Rear Parking Assist Sensor Kit. These ultrasonic sensors are critical components of the Reverse Sensing System, designed to detect obstacles behind your vehicle and provide the necessary alerts to prevent low-speed collisions. Over time, exposure to road salt, high-pressure car washes, and debris can cause internal sensor failure, often resulting in a "Check Park Aid" warning on your instrument cluster or a continuous "fault" tone.

This kit provides a complete set of four sensors, allowing you to refresh the entire rear bumper array simultaneously. Each sensor is engineered with high-sensitivity internal components and a weather-sealed housing to ensure consistent performance in rain, snow, and extreme temperatures. These are direct-fit, plug-and-play components designed to snap into your factory bumper bezels and interface perfectly with the existing Ford wiring harness.

Fitment Verification and Vehicle Applications

This set is specifically calibrated for the twelfth-generation Ford F150. Please verify your vehicle's year and trim:

• Ford F150 (All Trims): 2009, 2010, 2011, 2012, 2013, 2014.

• Placement: Rear Bumper (Left, Right, Inner, and Outer positions).

• Fitment Note: These sensors are intended for trucks equipped with the factory-installed Parking Aid option. They are not designed as a standalone "add-on" kit for trucks not originally equipped with a proximity system.

Technical Specifications and Attributes

• Quantity: 4-Piece Set (Complete Rear Bumper Coverage).

• Connector Type: 3-Pin factory-style terminal.

• Material: High-grade ABS plastic with silicon-sealed internals.

• Testing: Quality tested to meet strict product standards for ultrasonic frequency and detection range.

• Finish: Matte Black (Paintable to match color-coded bumpers).

• Fitment Type: Direct Replacement.

What’s in the Box

• (4) Rear Parking Assist Object Sensors (Direct Fit)

Industry Cross-Reference Numbers

• Ford: 9L3Z-15K859-D, 9L3Z15K859D, 9L3Z 15K859 D

• Dorman - OE Solutions: 684-063

• Standard Motor Products / Ignition: PPS20

• Partslink: FO1175101

• Interchange: 5S12165, SU13577

Installation and Technical Tips

• Clean the Bezel Interface: Before installing the new sensors, thoroughly clean the plastic mounting bezels on the bumper. Dirt or grit trapped between the sensor face and the bezel can cause "ghost" alerts, where the system detects an object that isn't there.

• Paint-to-Match: These sensors arrive in a standard matte black finish. If your F150 features a color-matched bumper (such as on FX4, Limited, or Platinum trims), you may paint the sensor faces. Apply only a very thin layer of automotive paint; excessive thickness or "heavy" metallic flakes can interfere with the ultrasonic waves and reduce detection accuracy.

• Harness Inspection: If the "Check Park Aid" message persists after installation, inspect the main wiring harness located behind the rear bumper. This harness is frequently exposed to moisture and road debris, which can lead to corroded pins or broken wires near the spare tire assembly.

• Diagnostic Reset: Once the new sensors are installed, the system may require a few ignition cycles or for the vehicle to be driven above 15 mph for the error message to clear. In some instances, clearing the DTC (Diagnostic Trouble Code) with an OBD-II scanner may be necessary.