GPS Tracker for BMW 3 Series: Cast Iron
This gps tracker for the BMW 3 Series is specified around cast iron, 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 reorders that did not match the approved sample, or a fitment that looked right on paper and failed on the bench. Both are specification problems, and both are preventable.

Specification
| Product | GPS Tracker |
|---|---|
| Vehicle application | BMW 3 Series |
| Material / finish | Cast Iron |
| Typical use | Off-Road Trails |
| MOQ | 1,000 pieces per specification |
| Sampling | 14 working days, 3 days per revision |
| Bulk lead time | 25-55 days after approval |
| Compliance | ECE R90 |
| Packing | 20 pieces per inner box, 200 per carton |
Material options
- High Density Foam — used when the finish has to hold a coating
- PVC Coated Fabric — the cost-effective default for volume programmes
- Semi-Metallic Compound — the cost-effective default for volume programmes
- Chromed Steel — preferred when weight matters more than rigidity
- Tempered Glass — the cost-effective default for volume programmes

Processes available
- shot blasting
- heat treatment
- rubber vulcanisation
- assembly line testing
- CNC machining
- precision stamping
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 off-road trails. Related applications include daily commuting, construction sites, urban courier work, coastal delivery, wet weather riding.
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 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 1000 pieces per line.
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.
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.
Share a sample or a drawing and we will quote against a written specification, not against a photograph.







