Piston Ring for Nissan Patrol: Polypropylene
This piston ring for the Nissan Patrol 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 reorders that did not match the approved sample, or reorders that did not match the approved sample. Both are specification problems, and both are preventable.

Specification
| Product | Piston Ring |
|---|---|
| Vehicle application | Nissan Patrol |
| Material / finish | Polypropylene |
| Typical use | Daily Commuting |
| MOQ | 500 pieces per specification |
| Sampling | 7 working days, 3 days per revision |
| Bulk lead time | 25-55 days after approval |
| Compliance | RoHS |
| Packing | 50 pieces per inner box, 500 per carton |
Material options
- Kevlar Composite — specified where the part sits close to a heat source
- Cast Iron — chosen where wear resistance comes first
- Natural Rubber — used when the finish has to hold a coating
- Carbon Fibre Composite — preferred when weight matters more than rigidity
- Aluminium Alloy — selected when the part is exposed to weather and road salt

Processes available
- surface grinding
- CNC machining
- anodising
- gravity casting
- shot blasting
- heat treatment
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 daily commuting. Related applications include mining sites, adventure travel, roadside assistance, track days, delivery fleets.
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
What testing is included?
Standard lots ship with dimensional and hardness reports. RoHS documentation is issued with the shipment when your market requires it.
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.
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.
Tell us the model, the fitment and the quantity and we will hold a production slot for you.







