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Case Study: Dual Mass Flywheel Supply for a fleet operator in North America

Source:Case / Time:2026-09-18

Dual Mass Flywheel for A fleet operator in North America

A fleet operator came to us with a dual mass flywheel programme for North America. 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

  • Premature wear on the first batch
  • Inconsistent hardness between lots
  • Warranty claims traced back to a single lot

Dual Mass Flywheel case study

What was specified

PartDual Mass Flywheel
ClientA fleet operator
MarketNorth America
Volume20,000 pieces across 3 specifications
Base materialSemi-Metallic Compound
Sampling rounds4
Delivery window6 weeks from PO to ex-factory
ComplianceSGS

How it was resolved

  1. The specification was rebuilt around Semi-Metallic Compound 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.

Dual Mass Flywheel production run

Result

  • 20,000 pieces delivered inside the 6-week window.
  • Unit cost held within 1.5% of the original quotation.
  • Inspection-related rejection stayed under 0.5%.
  • The specification is on file, so reorders reproduce the approved sample.

What we would repeat

Fix the specification count early. Adding variants after production starts is the most expensive change a client can request.

Planning something similar?

Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.

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