Welcome to Auto, Motorcycle Parts & Accessories official website!

Case Study: Crankshaft Supply for a spare parts retailer in Latin America

Source:Case / Time:2026-09-18

Crankshaft for A spare parts retailer in Latin America

A spare parts retailer came to us with a crankshaft programme for Latin 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

  • Reorders that did not match the approved sample
  • Inconsistent hardness between lots
  • A supplier who changed material without saying so

Crankshaft case study

What was specified

PartCrankshaft
ClientA spare parts retailer
MarketLatin America
Volume10,000 pieces across 3 specifications
Base materialPowder Coated Steel
Sampling rounds2
Delivery window5 weeks from PO to ex-factory
ComplianceREACH

How it was resolved

  1. The specification was rebuilt around Powder Coated 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.

Crankshaft production run

Result

  • 10,000 pieces delivered inside the 5-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

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

Planning something similar?

Ask for the current catalogue and the specification sheet for this line.

Online customer service
WeChat contact
Customer service
Scan code to add Wechat (same mobile phone number)
Telephone consultation
Back to top