Coil Spring for Nissan X-Trail: Polypropylene
This coil spring for the Nissan X-Trail 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 warranty claims traced back to a single lot, or premature wear on the first batch. Both are specification problems, and both are preventable.

Specification
| Product | Coil Spring |
|---|---|
| Vehicle application | Nissan X-Trail |
| Material / finish | Polypropylene |
| Typical use | Urban Courier Work |
| MOQ | 1,000 pieces per specification |
| Sampling | 7 working days, 3 days per revision |
| Bulk lead time | 15-55 days after approval |
| Compliance | REACH |
| Packing | 10 pieces per inner box, 200 per carton |
Material options
- Ceramic Composite — selected when the part is exposed to weather and road salt
- Carbon Fibre Composite — used when the finish has to hold a coating
- Brass — selected when the part is exposed to weather and road salt
- Bronze — used when the finish has to hold a coating
- Zinc Plated Steel — specified where the part sits close to a heat source

Processes available
- CNC machining
- ultrasonic cleaning
- shot blasting
- heat treatment
- die casting
- sintering
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 urban courier work. Related applications include wet weather riding, security patrols, rental fleets, delivery fleets, 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
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 1000 pieces per line.
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.
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 is packing specified?
Individual packing, inner box quantity and carton marking are confirmed at quotation stage so the cartons arrive ready for your warehouse.
Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.







