68171189AD PM sensor WJIECO Particulate Sensor 68171189AD Compatible with Fits For RAM Pickup diesel vehicles Diesel Exhaust Particulate Matter Sensor OEM Replace Part Number 68171189AD 0281007482 0281007480 PM Sensor Automobiles Sensors 68171189AD PM sensor

https://wjieco-autoparts.com/

68171189AD PM sensor

https://wjieco-autoparts.com/product/68171189ad/

https://www.amazon.com/dp/B0F4XKV1VT

The WJIECO 68171189AD PM sensor is the latest revision of the diesel particulate matter (PM) sensor fitted to 2014-2018 Ram 1500 and 2019 Ram 1500 Classic pickups with the 3.0L V6 EcoDiesel engine. It sits in the exhaust aftertreatment pipe, samples soot passing out of the diesel particulate filter, and feeds a continuous soot-load signal to the engine control module. The ECM times regeneration from that signal, burning trapped soot away before the filter can plug. Because this revision supersedes earlier builds, it is the direct-upgrade choice when an aging original sensor begins to send erratic readings.

## Fitment and Compatibility

### Compatible Vehicles

– 2014-2018 Ram 1500 – 3.0L V6 EcoDiesel (GEN 2)
– 2019 Ram 1500 Classic – 3.0L V6 EcoDiesel (GEN 2)

This 68171189AD PM sensor bolts into the factory sensor port and reuses the stock electrical connector, so the install stays a simple swap with no wiring modifications or recalibration. It is engineered strictly for the 3.0L V6 EcoDiesel; gasoline, HEMI, and Gen 3 EcoDiesel applications call for different part numbers.

### Interchangeable Part Numbers

The WJIECO 68171189AD PM sensor cross-references these numbers:

– Mopar: 68250216AA, 68250216AB, 68250216AC, 68250216AD
– Bosch: 0281007482, 0281007480, 0281006402

This revision also replaces the earlier 68171189AA and 68171189AC units. Confirm the OE number stamped on your old sensor before ordering to avoid an unnecessary return.

## How the Diesel PM Sensor Works

### What It Measures

A heated sensing element estimates the mass of soot held inside the DPF. As the filter loads, the sensor signal rises until the engine control module’s threshold is reached, triggering a high-temperature regeneration that oxidizes the accumulated soot and restores filter capacity.

### Why Accurate Readings Matter

A tired 68171189AD PM sensor gives the ECM unreliable soot data. The truck may cycle regens too often, wasting fuel and heat-soaking the aftertreatment system, or skip regen long enough that the filter clogs and power drops off. Fitting a fresh sensor restores correct regeneration timing, fuel economy, and driveability on the 3.0L EcoDiesel, and it keeps a costly DPF replacement off the table. Owners who keep driving on a drifted sensor often end up paying for a dealer-forced regen instead of a quick part swap.

## Signs Your PM Sensor Needs Replacement

Watch for these symptoms on a 2014-2018 Ram 1500 3.0L EcoDiesel:

– DPF warning light, exhaust filter messages, or reduced power under load
– Check engine code for soot or DPF efficiency (for example P2453, P2454)
– Regeneration cycles that repeat back-to-back or never complete
– Dropping fuel economy on highway runs

If your truck is storing a diagnostic trouble code, look up the exact definition and the likely causes on the free code library at [OBD-Codes.com](https://www.obd-codes.com) before buying parts.

## Installation Overview

1. Park on level ground, let the exhaust fully cool, and locate the sensor on the DPF assembly.
2. Unclip the electrical connector and remove the old sensor with the correct socket.
3. Thread in the new WJIECO 68171189AD PM sensor to match the original position.
4. Reconnect the plug, start the engine, and clear stored codes with a scan tool.

The whole job usually takes 20-30 minutes with basic hand tools, and no sensor coding or relearn is required after the install.

## Why Choose WJIECO

– Latest family revision built to OEM specifications
– Sealed, heat-resistant housing for continuous exhaust heat
– Factory-matched connector and threads for a leak-free install
– Each unit is 100% inspected before packing to reduce defect returns
– 12-month warranty and responsive after-sales support

For the EcoDiesel owner, the WJIECO 68171189AD PM sensor is the current-revision, budget-friendly fix that keeps the DPF system regenerating on schedule and keeps the Ram 1500 on the road.