Gearbox Mount for BMW 3 Series: Polypropylene
This gearbox mount for the BMW 3 Series is specified around polypropylene, 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 supplier who changed material without saying so, or a fitment that looked right on paper and failed on the bench. Both are specification problems, and both are preventable.

Specification
| Product | Gearbox Mount |
|---|---|
| Vehicle application | BMW 3 Series |
| Material / finish | Polypropylene |
| Typical use | Delivery Fleets |
| MOQ | 3,000 pieces per specification |
| Sampling | 7 working days, 3 days per revision |
| Bulk lead time | 15-40 days after approval |
| Compliance | SAE J431 |
| Packing | 20 pieces per inner box, 1000 per carton |
Material options
- Brass — the cost-effective default for volume programmes
- Carbon Fibre Composite — preferred when weight matters more than rigidity
- EPDM Rubber — chosen where wear resistance comes first
- PU Leather — used when the finish has to hold a coating
- Forged Aluminium — preferred when weight matters more than rigidity

Processes available
- shot blasting
- precision stamping
- sintering
- anodising
- electroplating
- cold forging
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 delivery fleets. Related applications include roadside assistance, construction sites, night riding, weekend riding, food delivery.
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
What is the minimum order quantity?
The standard MOQ is 3000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 3000 pieces per line.
What testing is included?
Standard lots ship with dimensional and hardness reports. SAE J431 documentation is issued with the shipment when your market requires it.
Can you match an existing sample?
Send a sample and we will reverse-engineer the specification, then produce a counter sample for approval before any bulk starts.
Ask for the current catalogue and the specification sheet for this line.







