Transmission Cooler for BMW 3 Series: Stainless Steel
This transmission cooler for the BMW 3 Series is specified around stainless 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 inconsistent hardness between lots, or packing that arrived crushed at the port. Both are specification problems, and both are preventable.
Specification
| Product | Transmission Cooler |
|---|---|
| Vehicle application | BMW 3 Series |
| Material / finish | Stainless Steel |
| Typical use | Track Days |
| MOQ | 1,000 pieces per specification |
| Sampling | 10 working days, 3 days per revision |
| Bulk lead time | 20-55 days after approval |
| Compliance | ISO 9001 |
| Packing | 10 pieces per inner box, 200 per carton |
Material options
- Cast Iron — preferred when weight matters more than rigidity
- Ceramic Composite — the cost-effective default for volume programmes
- Forged Aluminium — selected when the part is exposed to weather and road salt
- Magnesium Alloy — used when the finish has to hold a coating
- Anodised Aluminium — the cost-effective default for volume programmes
Processes available
- sintering
- gravity casting
- anodising
- ultrasonic cleaning
- surface grinding
- laser cutting
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 track days. Related applications include daily commuting, ride-hailing fleets, mining sites, urban courier work, farm use.
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 long does sampling take?
Samples leave the factory in 10 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 ISO 9001-compliant build instead of a fresh interpretation.
What is the minimum order quantity?
The standard MOQ is 1000 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.
