Particulate Matter (PM) Sensors
Downstream diesel emissions sensing
Particulate Matter (PM) Sensors
Used downstream of the DPF on selected diesel applications. The sensor, its control unit and the ECU strategy form one application-specific system — confirm the vehicle actually uses a PM sensor before sourcing.
A particulate matter sensor is installed downstream of the diesel particulate filter on selected applications. Industry descriptions of the technology refer to a resistive sensing element that is regenerated by heating between measurement phases, with a dedicated control unit communicating with the engine ECU.
That system description does not mean every diesel vehicle uses a PM sensor. The aftertreatment layout, emissions calibration and control unit are decided by the vehicle manufacturer. Confirm the layout from the VIN or OE parts catalogue before ordering a replacement.
Because the sensor and its control unit are calibrated as a pair, we match the part by OE number and vehicle application rather than by housing shape. Send a photo of the original label and connector together with the number.
Our catalogue desk returns the matched SHR reference, the fitment notes and the available test data before any order is placed. If the application does not use a PM sensor, we will say so rather than offer a near-equivalent.
What varies between applications
These parts are specified by the vehicle's aftertreatment system, not by a generic housing. The table lists what we verify before offering a replacement; send the items in the first column with your enquiry and we will return the exact reference.
| # | Information to send | Why it decides the part |
|---|---|---|
| 01 | Confirm the vehicle uses a PM sensor | Not every diesel aftertreatment layout includes one. |
| 02 | Full OE / OEM part number | Ties the sensor and control unit calibration to the vehicle. |
| 03 | VIN, engine and market | Emissions calibration differs between markets. |
| 04 | Control unit part number | Sensor and control unit are a matched system. |
| 05 | Photos of label and connector | Confirms housing, marking and pin layout. |
How we confirm a match
We do not publish a guessed part-number list for this family. Every number is checked against the vehicle application and the original part before a quotation is issued.
01. Send the number
OE reference plus VIN, engine and market.
02. Verify the layout
We confirm the vehicle actually carries a PM sensor and its control unit.
03. Return the match
Matched SHR reference with datasheet and fitment notes.
04. Sample then volume
Validate on the vehicle before a production order.
Why distributors buy from SHR
Layout verified first
We check the aftertreatment architecture before quoting a PM sensor.
Matched by OE number
Sensor and control unit calibration are confirmed together.
IATF 16949 production
Controlled calibration and traceable automotive manufacturing lots.
Test data on request
Available response and calibration data travel with the part.
Samples before volume
One or two units for validation on the vehicle.
Direct from the factory
Engineering, quality and sales answer on one number.
Fitment coverage
- Selected Euro 6 diesel passenger cars
- Light commercial diesel vehicles
- Heavy-duty diesel trucks and buses
- DPF-equipped aftertreatment systems
- Fleet and service networks
- OE parts-catalogue cross-referencing
Related parts & technical notes
Move from this part number to the supporting fitting guidance, or to the adjacent sensor families in the same vehicle system.
Need a match?
Send the OE number, vehicle platform and a photo of the original part. We will confirm the fitment before quoting.
Send your OE numbers today
Send the OE number, VIN and a photo of the original sensor. We will verify the PM sensor layout and the control unit before quoting.