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Case Study: Fuel Tank Cap Supply for a construction contractor in North America

Source:Case / Time:2026-09-18

Fuel Tank Cap for A construction contractor in North America

A construction contractor came to us with a fuel tank cap 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

  • Documentation that arrived after the container shipped
  • Reorders that did not match the approved sample
  • Warranty claims traced back to a single lot

Fuel Tank Cap case study

What was specified

PartFuel Tank Cap
ClientA construction contractor
MarketNorth America
Volume10,000 pieces across 4 specifications
Base materialCast Iron
Sampling rounds2
Delivery window6 weeks from PO to ex-factory
ComplianceRoHS

How it was resolved

  1. The specification was rebuilt around Cast Iron 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.

Fuel Tank Cap production run

Result

  • 10,000 pieces delivered inside the 6-week window.
  • Unit cost held within 1.5% of the original quotation.
  • Inspection-related rejection stayed under 1.5%.
  • The specification is on file, so reorders reproduce the approved sample.

What we would repeat

Keep one accountable owner on both sides. Most delays come from hand-offs, not from machines.

Planning something similar?

Tell us the model, the fitment and the quantity and we will hold a production slot for you.

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