Case Study: Spark Plug Supply for a rental company in the Caribbean

Spark Plug for A rental company in the Caribbean

A rental company came to us with a spark plug programme for the Caribbean. 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
• Reorders that did not match the approved sample
• Documentation that arrived after the container shipped

What was specified

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.

Result

• 20,000 pieces delivered inside the 8-week window.
• Unit cost held within 4.5% 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

Lock the material standard before sampling. Once the base changes, every downstream approval has to be redone and the calendar slips.

Planning something similar?

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