Oxygen Sensor Unit for Changan CS75: High Density Foam
This oxygen sensor unit for the Changan CS75 is specified around high density foam, which decides how it behaves in service far more than the part name does. We build to a written specification — base material, dimensions, finish and packing — and hold that specification on file so every reorder reproduces the approved piece.
The usual reason a programme changes supplier is not unit price. It is a fitment that looked right on paper and failed on the bench, or a specification nobody had written down. Both are specification problems, and both are preventable.

Specification
| Product | Oxygen Sensor Unit |
|---|---|
| Vehicle application | Changan CS75 |
| Material / finish | High Density Foam |
| Typical use | Ride-Hailing Fleets |
| MOQ | 200 pieces per specification |
| Sampling | 7 working days, 3 days per revision |
| Bulk lead time | 25-30 days after approval |
| Compliance | DOT |
| Packing | 50 pieces per inner box, 1000 per carton |
Material options
- Aluminium Alloy — used when the finish has to hold a coating
- EPDM Rubber — used when the finish has to hold a coating
- Stainless Steel — specified where the part sits close to a heat source
- Cast Iron — selected when the part is exposed to weather and road salt
- PVC Coated Fabric — the cost-effective default for volume programmes

Processes available
- injection moulding
- laser cutting
- sintering
- electroplating
- robot welding
- anodising
Fitment notes
Confirm the fitment against the VIN or the frame number before ordering; two model years often share a name and not a part.
Where it is used
The specification above is the one most often ordered for ride-hailing fleets. Related applications include weekend riding, ride-hailing fleets, rental fleets, delivery fleets, wet weather riding.
Quality and packing
- In-line inspection with AQL 4.0 sampling on every lot.
- Dimensional report issued against the approved drawing.
- Carton marking and barcode to your specification.
- Golden sample retained at the factory as the reorder reference.
Questions buyers ask
What is the minimum order quantity?
The standard MOQ is 200 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
How long does sampling take?
Samples leave the factory in 7 working days, and each revision round adds about 3 days once you have seen the first piece.
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the DOT-compliant build instead of a fresh interpretation.
What happens if a lot fails inspection?
The lot is re-inspected against the golden sample, and replacement pieces ship on the next available booking at our cost.
Send the specification you are working to and we will confirm what we can match, what we would change and why.







