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THE PARTS COUNTER

What are you looking for?

Try “piston”, a model such as “218”, or an original part number.

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THE WORKSHOP GUIDE

Check twice.
Fit once.

A little preparation can save a lot of frustration. Here’s what to check before ordering a part for a Porsche-Diesel or Allgaier tractor.

How do I check if a part fits?

Compare your tractor’s complete model designation, the original part number and the relevant dimensions with the listing. Account for previous repairs or modifications. If any critical detail is missing or inconsistent, ask the workshop before ordering.

1. Start with the identification plate

Record the complete model designation and serial number from the tractor, rather than relying on its appearance or a family name such as Junior or Super. Photograph the plate so you can refer back to it.

2. Look for an original part number

Clean the existing component enough to read any stamped or cast number. Compare it with the original part references on the product page. A Vintage Tractors reference identifies our catalogue entry; it is not automatically the original manufacturer’s number.

3. Compare the important dimensions

Check measurements such as diameter, length, mounting positions and thread where they are relevant. Compare the orientation, fixing points and visible details with the product photographs. Ask the workshop when a critical measurement is not listed.

4. Allow for the tractor’s history

These machines may have had decades of repairs and modifications. A model match is a useful starting point, but a previous owner may have changed the component or assembly. Compare what is fitted to your own tractor.

5. Ask before committing

If something is unclear, share the model, the VT reference, the original part number and photographs with the workshop. Do not infer compatibility from a similar-looking photo alone.

Ask for parts advice ↗

This is general identification guidance. Installation procedures, safety-critical work and technical tolerances require the relevant workshop manual and a competent mechanic.

Updated 12 November 2026. Identification guidance based on the model, fitment and reference information provided in the Vintage Tractors catalogue. See also understanding part numbers.

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