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Case Study: Fuel Pressure Regulator Supply for a bus operator in North America

Source:Case / Time:2026-09-18

Fuel Pressure Regulator for A bus operator in North America

A bus operator came to us with a fuel pressure regulator 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

  • Lead time that slipped twice before bulk started
  • Reorders that did not match the approved sample
  • Warranty claims traced back to a single lot

Fuel Pressure Regulator case study

What was specified

PartFuel Pressure Regulator
ClientA bus operator
MarketNorth America
Volume5,000 pieces across 2 specifications
Base materialTitanium Alloy
Sampling rounds3
Delivery window8 weeks from PO to ex-factory
ComplianceECE R90

How it was resolved

  1. The specification was rebuilt around Titanium Alloy 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 Pressure Regulator production run

Result

  • 5,000 pieces delivered inside the 8-week window.
  • Unit cost held within 1.5% 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

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

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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