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Case Study: Fuel Pressure Regulator Supply for a bus operator in Southern Africa

Source:Case / Time:2026-09-18

Fuel Pressure Regulator for A bus operator in Southern Africa

A bus operator came to us with a fuel pressure regulator programme for Southern Africa. 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

  • Packing that arrived crushed at the port
  • A supplier who changed material without saying so
  • A fitment that looked right on paper and failed on the bench

Fuel Pressure Regulator case study

What was specified

PartFuel Pressure Regulator
ClientA bus operator
MarketSouthern Africa
Volume20,000 pieces across 2 specifications
Base materialReinforced Nylon
Sampling rounds2
Delivery window5 weeks from PO to ex-factory
ComplianceSGS

How it was resolved

  1. The specification was rebuilt around Reinforced Nylon 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

  • 20,000 pieces delivered inside the 5-week window.
  • Unit cost held within 4.5% 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

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

Planning something similar?

Share a sample or a drawing and we will quote against a written specification, not against a photograph.

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