Idler Pulley for Renault Duster: Polypropylene
This idler pulley for the Renault Duster 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 inconsistent hardness between lots, or packing that arrived crushed at the port. Both are specification problems, and both are preventable.

Specification
| Product | Idler Pulley |
|---|---|
| Vehicle application | Renault Duster |
| Material / finish | Polypropylene |
| Typical use | Mountain Roads |
| MOQ | 200 pieces per specification |
| Sampling | 14 working days, 5 days per revision |
| Bulk lead time | 20-30 days after approval |
| Compliance | ECE R90 |
| Packing | 10 pieces per inner box, 500 per carton |
Material options
- ABS Plastic — chosen where wear resistance comes first
- Reinforced Nylon — preferred when weight matters more than rigidity
- Tempered Glass — chosen where wear resistance comes first
- Polypropylene — chosen where wear resistance comes first
- Carbon Fibre Composite — preferred when weight matters more than rigidity

Processes available
- electroplating
- assembly line testing
- powder coating
- sintering
- anodising
- CNC machining
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 mountain roads. Related applications include daily commuting, urban courier work, heavy load hauling, adventure travel, mining sites.
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 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.
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 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 200 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
Tell us the model, the fitment and the quantity and we will hold a production slot for you.







