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Case Study: Car Alternator Supply for a spare parts retailer in Central America

Source:Case / Time:2026-09-18

Car Alternator for A spare parts retailer in Central America

A spare parts retailer came to us with a car alternator 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 supplier who changed material without saying so
  • Lead time that slipped twice before bulk started
  • Documentation that arrived after the container shipped

Car Alternator case study

What was specified

PartCar Alternator
ClientA spare parts retailer
MarketCentral America
Volume10,000 pieces across 2 specifications
Base materialZinc Plated Steel
Sampling rounds2
Delivery window4 weeks from PO to ex-factory
ComplianceIATF 16949

How it was resolved

  1. The specification was rebuilt around Zinc Plated Steel 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.

Car Alternator production run

Result

  • 10,000 pieces delivered inside the 4-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

Approve a pre-production sample made from the actual bulk material. Substitute material behaves differently in service.

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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