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Case Study: Idle Control Valve Supply for a bus operator in Central America

Source:Case / Time:2026-09-18

Idle Control Valve for A bus operator in Central America

A bus operator came to us with a idle control valve programme for Central 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

  • A specification nobody had written down
  • Packing that arrived crushed at the port
  • Lead time that slipped twice before bulk started

Idle Control Valve case study

What was specified

PartIdle Control Valve
ClientA bus operator
MarketCentral America
Volume10,000 pieces across 2 specifications
Base materialNylon 66
Sampling rounds2
Delivery window5 weeks from PO to ex-factory
ComplianceECE R90

How it was resolved

  1. The specification was rebuilt around Nylon 66 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.

Idle Control Valve production run

Result

  • 10,000 pieces delivered inside the 5-week window.
  • Unit cost held within 2.0% 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 specification you are working to and we will confirm what we can match, what we would change and why.

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