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Intake Manifold Specification Example for Long-Haul Trucks: Touring Version

Source:Sleeve Auto Bearing / Time:2026-09-18

Intake Manifold Specification Example for Long-Haul Trucks: Touring Version

This is a worked specification for intake manifold in a touring version 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 touring version version exists because the duty cycle on long-haul trucks is not the same as on a showroom vehicle. Where the two are specified identically, something fails later — usually a specification nobody had written down.

Intake Manifold

Example specification

ItemIntake Manifold
ApplicationLong-Haul Trucks
VersionTouring Version
Base materialCarbon Steel
Controlled dimensions4 key dimensions, recorded per lot
Tolerance band±0.05 mm
Finishpowder coated
MOQ2,000 pieces per specification
Sampling7 working days, 5 days per revision
ComplianceTUV

How the example is built up

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

Intake Manifold example

Processes involved

  • precision stamping
  • robot welding
  • powder coating
  • sintering
  • gravity casting
  • injection moulding

Where this example applies

Programmes that run touring version most often specify this build for long-haul trucks. Related applications include assembly programmes, light trucks, passenger cars, construction equipment, long-haul trucks.

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

How long does sampling take?

Samples leave the factory in 7 working days, and each revision round adds about 5 days once you have seen the first piece.

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.

Do you handle mixed containers?

Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 2000 pieces per line.

What testing is included?

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

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

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