Oil Filter for Audi A4: Brass
This oil filter for the Audi A4 is specified around brass, 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 specification nobody had written down, or a fitment that looked right on paper and failed on the bench. Both are specification problems, and both are preventable.

Specification
| Product | Oil Filter |
|---|---|
| Vehicle application | Audi A4 |
| Material / finish | Brass |
| Typical use | Heavy Load Hauling |
| MOQ | 2,000 pieces per specification |
| Sampling | 10 working days, 5 days per revision |
| Bulk lead time | 20-30 days after approval |
| Compliance | CCC |
| Packing | 50 pieces per inner box, 1000 per carton |
Material options
- Anodised Aluminium — chosen where wear resistance comes first
- Neoprene — preferred when weight matters more than rigidity
- Brass — used when the finish has to hold a coating
- High Density Foam — selected when the part is exposed to weather and road salt
- PU Leather — preferred when weight matters more than rigidity

Processes available
- shot blasting
- powder coating
- die casting
- precision stamping
- anodising
- gravity casting
Fitment notes
Check whether the mounting points on your market version match the catalogue drawing — regional variants are the usual cause of a wrong first order.
Where it is used
The specification above is the one most often ordered for heavy load hauling. Related applications include delivery fleets, ride-hailing fleets, construction sites, mountain roads, security patrols.
Quality and packing
- In-line inspection with AQL 1.5 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
How is packing specified?
Individual packing, inner box quantity and carton marking are confirmed at quotation stage so the cartons arrive ready for your warehouse.
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the CCC-compliant build instead of a fresh interpretation.
What is the minimum order quantity?
The standard MOQ is 2000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
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.
Ask for the current catalogue and the specification sheet for this line.







