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Replacement Car Alternator Specification Example for Aftermarket Retail: Folding Type

Source:Onboard Diagnostic Tools / Time:2026-09-18

Replacement Car Alternator Specification Example for Aftermarket Retail: Folding Type

This is a worked specification for replacement car alternator in a folding type programme. It is the document we would send a buyer who asks what exactly they are getting: the material, the dimensions that are actually controlled, the finish, and the checks that happen before anything is packed.

The folding type version exists because the duty cycle on aftermarket retail is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually a fitment that looked right on paper and failed on the bench.

Replacement Car Alternator

Example specification

ItemReplacement Car Alternator
ApplicationAftermarket Retail
VersionFolding Type
Base materialSemi-Metallic Compound
Controlled dimensions4 key dimensions, recorded per lot
Tolerance band±0.5 mm
Finishpowder coated
MOQ2,000 pieces per specification
Sampling10 working days, 3 days per revision
ComplianceRoHS

How the example is built up

  1. Start from the duty cycle, not from the catalogue photograph.
  2. Fix the base material in writing — Semi-Metallic Compound, in this example.
  3. List the dimensions that are actually controlled and the tolerance on each.
  4. Name the finish and what it has to survive.
  5. State the inspection level and who pays when a lot fails.

Replacement Car Alternator example

Processes involved

  • laser cutting
  • ultrasonic cleaning
  • shot blasting
  • heat treatment
  • precision stamping
  • CNC machining

Where this example applies

Programmes that run folding type most often specify this build for aftermarket retail. Related applications include light trucks, export programmes, agricultural trailers, trailer axles, emergency vehicles.

Checks before packing

  • Dimensional report against the approved drawing.
  • AQL 2.5 sampling on the finished lot.
  • Finish inspection under agreed lighting.
  • Carton drop test on the first lot of a new packing specification.

Questions buyers ask

What happens if a lot fails inspection?

The lot is re-inspected against the golden sample, and replacement pieces ship on the next available booking at our cost.

Can the specification be held on file?

Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the RoHS-compliant build instead of a fresh interpretation.

What is the minimum order quantity?

The standard MOQ is 2000 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.

Can you match an existing sample?

Send a sample and we will reverse-engineer the specification, then produce a counter sample for approval before any bulk starts.

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

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