Welcome to Auto, Motorcycle Parts & Accessories official website!

Case Study: Expansion Tank Supply for a delivery platform in Europe

Source:Case / Time:2026-09-18

Expansion Tank for A delivery platform in Europe

A delivery platform came to us with a expansion tank programme for Europe. The brief was ordinary and unforgiving at the same time: a fixed launch window, a landed cost that had to survive freight and duty, and a part that had to match an existing sample. This case records what was specified, what went wrong in sampling and how the bulk order landed.

The starting point

  • A supplier who changed material without saying so
  • Lead time that slipped twice before bulk started
  • Reorders that did not match the approved sample

Expansion Tank case study

What was specified

PartExpansion Tank
ClientA delivery platform
MarketEurope
Volume50,000 pieces across 6 specifications
Base materialBronze
Sampling rounds3
Delivery window10 weeks from PO to ex-factory
ComplianceSGS

How it was resolved

  1. The specification was rebuilt around Bronze and the tolerance locked before bulk.
  2. A pre-production sample was approved and kept as the golden reference.
  3. Production ran with in-line inspection and a mid-run photo report.
  4. Cartons were packed to the client's own barcode and ratio specification.
  5. Documentation shipped with the goods instead of after them.

Expansion Tank production run

Result

  • 50,000 pieces delivered inside the 10-week window.
  • Unit cost held within 2.0% of the original quotation.
  • Inspection-related rejection stayed under 2.0%.
  • The specification is on file, so reorders reproduce the approved sample.

What we would repeat

Approve a pre-production sample made from the actual bulk material. Substitute material behaves differently in service.

Planning something similar?

Ask for the current catalogue and the specification sheet for this line.

Online customer service
WeChat contact
Customer service
Scan code to add Wechat (same mobile phone number)
Telephone consultation
Back to top