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Case Study: Clutch Master Cylinder Supply for a courier company in Eastern Europe

Source:Case / Time:2026-09-18

Clutch Master Cylinder for A courier company in Eastern Europe

A courier company came to us with a clutch master cylinder programme for Eastern 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

  • Inconsistent hardness between lots
  • A supplier who changed material without saying so
  • A fitment that looked right on paper and failed on the bench

Clutch Master Cylinder case study

What was specified

PartClutch Master Cylinder
ClientA courier company
MarketEastern Europe
Volume10,000 pieces across 2 specifications
Base materialForged Aluminium
Sampling rounds2
Delivery window8 weeks from PO to ex-factory
ComplianceISO/TS 16949

How it was resolved

  1. The specification was rebuilt around Forged Aluminium 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.

Clutch Master Cylinder production run

Result

  • 10,000 pieces delivered inside the 8-week window.
  • Unit cost held within 4.5% of the original quotation.
  • Inspection-related rejection stayed under 1.0%.
  • The specification is on file, so reorders reproduce the approved sample.

What we would repeat

Lock the material standard before sampling. Once the base changes, every downstream approval has to be redone and the calendar slips.

Planning something similar?

Send the specification you are working to and we will confirm what we can match, what we would change and why.

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