Expansion Tank for Mazda BT-50: Neoprene
This expansion tank for the Mazda BT-50 is specified around neoprene, 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 premature wear on the first batch. Both are specification problems, and both are preventable.

Specification
| Product | Expansion Tank |
|---|---|
| Vehicle application | Mazda BT-50 |
| Material / finish | Neoprene |
| Typical use | Rural Transport |
| MOQ | 500 pieces per specification |
| Sampling | 7 working days, 3 days per revision |
| Bulk lead time | 15-55 days after approval |
| Compliance | E-mark |
| Packing | 100 pieces per inner box, 1000 per carton |
Material options
- Tempered Glass — the cost-effective default for volume programmes
- Brass — selected when the part is exposed to weather and road salt
- Aluminium Alloy — preferred when weight matters more than rigidity
- Magnesium Alloy — preferred when weight matters more than rigidity
- High Density Foam — the cost-effective default for volume programmes

Processes available
- precision stamping
- cold forging
- anodising
- ultrasonic cleaning
- electroplating
- powder coating
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 rural transport. Related applications include construction sites, night riding, coastal delivery, delivery fleets, motocross.
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
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.
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.
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the E-mark-compliant build instead of a fresh interpretation.
Ask for the current catalogue and the specification sheet for this line.







