Valve Cap Set for BMW 3 Series: Roadside Assistance
This valve cap set is the version most often ordered for roadside assistance on the BMW 3 Series. It is supplied to a written specification covering material, dimensions, finish and packing, and that specification stays on file — so a repeat order is a reorder, not a new negotiation.
What usually goes wrong is ordinary: lead time that slipped twice before bulk started, or packing that arrived crushed at the port. Both come from a specification that was never written down.

Specification
| Product | Valve Cap Set |
|---|---|
| Vehicle application | BMW 3 Series |
| Intended use | Roadside Assistance |
| Base material | Silicone |
| MOQ | 200 pieces per specification |
| Sampling | 10 working days, 5 days per revision |
| Compliance | SAE J431 |
Why this version
- Material — Silicone, chosen for the roadside assistance duty cycle rather than for showroom appearance.
- Capacity — sized for continuous use, not for intermittent demonstration use.
- Mounting — fixed to the BMW 3 Series without modification to the vehicle.
- Service — wearing parts are replaceable without replacing the whole unit.
- Packing — carton sized for a warehouse shelf, marked to your barcode.

Related lines
- Tricycle Parts Set
- Bus Parts Set
- Wiper Blade Set
- Jack Stand
- Car Refrigerator
- Valve Cap Set
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.
Ordering checklist
- Confirm the model year, market version and mounting points.
- State the duty cycle; roadside assistance is not the same specification as occasional use.
- Approve a sample built from bulk material.
- Fix packing and marking before the first container.
- Inspect before balance payment.
Questions buyers ask
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.
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the SAE J431-compliant build instead of a fresh interpretation.
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.
Send the specification you are working to and we will confirm what we can match, what we would change and why.







