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Automotive Door Panel Specification Example for Light Trucks: High Performance

Source:Aluminum Cylinder Head / Time:2026-09-18

Automotive Door Panel Specification Example for Light Trucks: High Performance

This is a worked specification for automotive door panel in a high performance 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 high performance version exists because the duty cycle on light trucks 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.

Automotive Door Panel

Example specification

ItemAutomotive Door Panel
ApplicationLight Trucks
VersionHigh Performance
Base materialNatural Rubber
Controlled dimensions6 key dimensions, recorded per lot
Tolerance band±0.05 mm
Finishanodised
MOQ1,000 pieces per specification
Sampling7 working days, 3 days per revision
ComplianceIATF 16949

How the example is built up

  1. Start from the duty cycle, not from the catalogue photograph.
  2. Fix the base material in writing — Natural Rubber, 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.

Automotive Door Panel example

Processes involved

  • heat treatment
  • sintering
  • cold forging
  • injection moulding
  • gravity casting
  • assembly line testing

Where this example applies

Programmes that run high performance most often specify this build for light trucks. Related applications include aftermarket retail, courier fleets, export programmes, boat trailers, three-wheelers.

Checks before packing

  • Dimensional report against the approved drawing.
  • AQL 4.0 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

Can the specification be held on file?

Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the IATF 16949-compliant build instead of a fresh interpretation.

What testing is included?

Standard lots ship with dimensional and hardness reports. IATF 16949 documentation is issued with the shipment when your market requires it.

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.

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.

Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.

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