DPF Differential-Pressure Sensors
Differential pressure across the diesel particulate filter
DPF Differential-Pressure Sensors
Measures the pressure difference upstream and downstream of a diesel particulate filter. Range, port layout and calibration are application-specific — the OE number decides the part.
A DPF differential-pressure sensor reports the pressure difference across the filter to the engine controller. The signal is one input to filter-loading estimation and regeneration strategy; it should always be read alongside the hoses, take-off ports, wiring and live vehicle data.
The same housing shape appears across several OE numbers with different pressure ranges and calibration curves. A sensor that fits the bracket but carries the wrong transfer function will produce a plausible-looking signal and an incorrect soot-load estimate — so we match by OE number, not by appearance.
Before replacing the sensor, check the two hoses for blockage, cracking or soot build-up, confirm the take-off ports are clear, and verify the connector and supply at the harness. A sound sensor on a blocked line still reports a fault.
Send the full OE number together with the vehicle platform, engine, model year and a photo of the original part. We return the matched SHR reference, its datasheet and the fitment notes before any order is placed.
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 | Full OE / OEM part number | The number ties the calibration curve to the vehicle. |
| 02 | Vehicle, engine and model year | Emissions configuration changes the range. |
| 03 | Hose ports and mounting | Port orientation and bracket must match the original. |
| 04 | Connector and pin count | Prevents a physically compatible but electrically wrong part. |
| 05 | Photos of label and connector | Lets us confirm the housing and marking. |
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We do not publish a guessed part-number list for this family.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, OEM or competitive reference, plus vehicle details.
02. Check the system
We verify the aftertreatment layout, range and port specification.
03. Return the match
Matched SHR reference with datasheet, connector and fitment notes.
04. Sample then volume
Validate on the vehicle before committing to a production order.
Why distributors buy from SHR
Matched by OE number
Range and calibration are confirmed against the application, not inferred from the housing.
Hoses and ports checked
We ask for the full line and bracket layout so the physical fit is right the first time.
IATF 16949 production
Controlled calibration and traceable lots on automotive-certified lines.
Test data on request
Calibration curve and response data travel with the part.
Samples before volume
One or two units for bench and vehicle validation.
Direct from the factory
Engineering, quality and sales answer on one number.
Fitment coverage
- Diesel passenger cars with DPF
- Light commercial vehicles and vans
- Heavy-duty trucks and buses
- Euro 5 / Euro 6 aftertreatment systems
- Off-highway and industrial diesel
- Fleet maintenance programmes
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.
Adjacent sensor families
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 and a photo of the original sensor. We will confirm the pressure range, ports and connector before quoting.