Air Box for Nissan X-Trail: Carbon Steel
This air box for the Nissan X-Trail is specified around carbon 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 warranty claims traced back to a single lot, or a supplier who changed material without saying so. Both are specification problems, and both are preventable.

Specification
| Product | Air Box |
|---|---|
| Vehicle application | Nissan X-Trail |
| Material / finish | Carbon Steel |
| Typical use | Motocross |
| MOQ | 500 pieces per specification |
| Sampling | 10 working days, 3 days per revision |
| Bulk lead time | 25-55 days after approval |
| Compliance | ISO 9001 |
| Packing | 20 pieces per inner box, 200 per carton |
Material options
- Bronze — chosen where wear resistance comes first
- Forged Aluminium — selected when the part is exposed to weather and road salt
- Chromed Steel — selected when the part is exposed to weather and road salt
- Anodised Aluminium — chosen where wear resistance comes first
- Reinforced Nylon — selected when the part is exposed to weather and road salt

Processes available
- assembly line testing
- electroplating
- die casting
- anodising
- rubber vulcanisation
- gravity casting
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 motocross. Related applications include long-distance touring, mining sites, security patrols, construction sites, roadside assistance.
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
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.
What is the minimum order quantity?
The standard MOQ is 500 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
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.
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.
Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.







