Air Filter for Subaru Forester: Carbon Steel
This air filter for the Subaru Forester is specified around carbon steel, 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 premature wear on the first batch, or reorders that did not match the approved sample. Both are specification problems, and both are preventable.

Specification
| Product | Air Filter |
|---|---|
| Vehicle application | Subaru Forester |
| Material / finish | Carbon Steel |
| Typical use | Construction Sites |
| MOQ | 3,000 pieces per specification |
| Sampling | 7 working days, 3 days per revision |
| Bulk lead time | 25-55 days after approval |
| Compliance | RoHS |
| Packing | 10 pieces per inner box, 500 per carton |
Material options
- Magnesium Alloy — used when the finish has to hold a coating
- Ceramic Composite — selected when the part is exposed to weather and road salt
- Nylon 66 — preferred when weight matters more than rigidity
- Carbon Fibre Composite — specified where the part sits close to a heat source
- Titanium Alloy — chosen where wear resistance comes first

Processes available
- heat treatment
- laser cutting
- rubber vulcanisation
- injection moulding
- anodising
- CNC machining
Fitment notes
Keep the old part until the new one is on the bench. Comparing them side by side settles questions a photograph never will.
Where it is used
The specification above is the one most often ordered for construction sites. Related applications include passenger transport, heavy load hauling, motocross, mining sites, urban courier work.
Quality and packing
- In-line inspection with AQL 2.5 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.
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.
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 3000 pieces per line.
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.
Send the specification you are working to and we will confirm what we can match, what we would change and why.







