68422291AA PM sensor Particulate Sensor Compatible with Fits For RAM Pickup diesel vehicles Diesel Exhaust Particulate Matter Sensor OEM Replace Part Number 68422291AA 0281008006 0281008007 PM Sensor Automobiles Sensors

68422291AA PM sensor

https://wjieco-autoparts.com/

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

The WJIECO 68422291AA PM sensor is a direct-fit diesel particulate matter (PM) sensor built for the 2020-2023 Ram 1500 pickup with the 3.0L V6 EcoDiesel (Gen 3) engine. Mounted in the exhaust stream, it continuously reads soot loading inside the diesel particulate filter (DPF) and feeds that data to the engine control module (ECM). With accurate soot data, the ECM starts a regeneration cycle at the right moment, burns the trapped soot away, and keeps the filter clear. When this sensor drifts or fails, the Gen 3 EcoDiesel loses its regeneration strategy, and catching that early is far cheaper than replacing a clogged DPF.

## Fitment and Compatibility

### Compatible Vehicles

– 2020-2023 Ram 1500 (DT generation) – 3.0L V6 EcoDiesel (GEN 3)

The 3.0L EcoDiesel returned to the Ram 1500 lineup for 2020 after a short break, and its revised aftertreatment system uses this own sensor revision. This 68422291AA PM sensor bolts into the original mounting port and uses the factory electrical connector, so no cutting, splicing, or reprogramming is needed. It is not interchangeable with the 2014-2018 Gen 2 EcoDiesel sensor parts, even though both trucks carry the Ram 1500 name.

### Interchangeable Part Numbers

The WJIECO 68422291AA PM sensor cross-references 0258B00814-01, the number listed by aftermarket parts distributors for this application. No other Mopar revision number is currently confirmed for this generation. Before you order, check the OE number stamped on your original sensor and match it against 68422291AA to avoid a wrong-fit return.

## How the Diesel PM Sensor Works

### What It Measures

A PM sensor uses a heated sensing element exposed to exhaust flow to estimate how much soot has accumulated in the DPF. As the filter loads up, the sensor signal climbs steadily. When the soot level reaches the threshold programmed by the ECM, the controller commands a high-temperature regeneration that oxidizes the trapped soot and returns the filter to a clean state.

### Why Accurate Readings Matter

A worn 68422291AA PM sensor sends the ECM bad soot data. The truck may regenerate too often, wasting fuel and adding heat cycles to the DPF, or it may delay regeneration until the filter plugs and power drops away. Replacing the sensor restores normal regen timing, fuel economy, and driveability on the Gen 3 EcoDiesel. Owners who wait often end up booking a forced regen at the dealer or, worse, a filter replacement.

## Signs Your PM Sensor Needs Replacement

Watch for these symptoms on a 2020-2023 Ram 1500 3.0L EcoDiesel:

– DPF or exhaust filter warning messages, reduced power, or limp mode
– Check engine light with soot or DPF efficiency codes (for example P2453, P2454)
– Regen cycles that run back to back or never seem to finish
– Noticeably lower fuel economy on highway cruising

If your truck is storing a diagnostic trouble code, look up the exact definition and 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 cool fully, and locate the PM sensor on the DPF assembly.
2. Disconnect the electrical connector and remove the old sensor with the correct socket.
3. Install the new WJIECO 68422291AA PM sensor into the same port and seat it back to the original position.
4. Reconnect the connector, start the engine, and clear stored codes with a scan tool.

Most DIY owners finish the job in 20-30 minutes with basic hand tools, and no sensor calibration is required after the swap.

## Why Choose WJIECO

– Direct-fit replacement built to OEM specifications for the Gen 3 EcoDiesel
– Sealed, heat-resistant housing tested for high exhaust temperatures
– Factory-matched connector and thread for a clean bolt-in install
– Each unit is inspected before packing to cut down on defect returns
– 12-month warranty with responsive after-sales support

For the 2020-2023 Ram 1500 EcoDiesel owner, the WJIECO 68422291AA PM sensor is the cost-effective replacement that keeps the DPF regenerating on schedule and keeps the truck out of the shop.