Fuse Box for BMW 3 Series: Zinc Plated Steel
This fuse box for the BMW 3 Series is specified around zinc plated 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 inconsistent hardness between lots. Both are specification problems, and both are preventable.

Specification
| Product | Fuse Box |
|---|---|
| Vehicle application | BMW 3 Series |
| Material / finish | Zinc Plated Steel |
| Typical use | Track Days |
| MOQ | 500 pieces per specification |
| Sampling | 14 working days, 5 days per revision |
| Bulk lead time | 25-30 days after approval |
| Compliance | E-mark |
| Packing | 20 pieces per inner box, 500 per carton |
Material options
- Reinforced Nylon — chosen where wear resistance comes first
- ABS Plastic — chosen where wear resistance comes first
- Stainless Steel — specified where the part sits close to a heat source
- High Density Foam — preferred when weight matters more than rigidity
- Titanium Alloy — preferred when weight matters more than rigidity

Processes available
- electroplating
- shot blasting
- gravity casting
- ultrasonic cleaning
- precision stamping
- robot welding
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 track days. Related applications include ride-hailing fleets, roadside assistance, adventure travel, heavy load hauling, farm use.
Quality and packing
- In-line inspection with AQL 4.0 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.
How long does sampling take?
Samples leave the factory in 14 working days, and each revision round adds about 5 days once you have seen the first piece.
What testing is included?
Standard lots ship with dimensional and hardness reports. E-mark documentation is issued with the shipment when your market requires it.
Send the specification you are working to and we will confirm what we can match, what we would change and why.







