Aiways OE interchange codes, explained
When a manufacturer changes a part, it records how the old and new numbers relate. Aiways' change record uses four codes. Reading them correctly is the difference between a part that fits and a part that comes back.
The four codes at a glance
| Code | Meaning | Count in index | Practical rule |
|---|---|---|---|
| A→B | Old number replaced by new, one direction only | 426 | New fits where old was used; old does not fit the new application |
| A↔B | Mutually interchangeable | 207 | Either number works, subject to VIN confirmation |
| A≠B | Not interchangeable | 107 | Ordering the wrong one will not fit — verify before ordering |
| A←B | Reverse-recorded replacement (less common) | 12 | Treat like A→B in the recorded direction |
1. A→B — one-directional replacement
This is the most common relationship (426 records). It means: the manufacturer changed the part, the new reference B supersedes the old A. B can be fitted where A was used. The reverse is not guaranteed — fitting the old A into a car that was built with B is exactly the kind of mistake that shows up as a non-fitting connector.
Rule: if your part page shows "superseded by", order the new number.
2. A↔B — mutual interchangeability
207 records are marked mutually interchangeable. The manufacturer's change record says either part will fit the same application. This is the only code where you can legitimately substitute the other number without a compatibility risk.
Rule: safe to substitute either way, but still confirm the VIN for peace of mind.
3. A≠B — NOT interchangeable
107 records are explicitly marked as not interchangeable. These are the dangerous ones: similar-looking numbers, same base family, but the change record says they do not fit the same application. Ordering by the wrong reference produces a part that does not fit.
Rule: never substitute across a ≠ boundary. If your number is marked ≠, order exactly the number you were given — or better, confirm the VIN first.
4. A←B — reverse-recorded replacement
12 records use the reverse arrow. This appears when the change record was written from the perspective of the later part. Treat it as a directional replacement in the recorded direction.
5. Why this matters more for Aiways than for a live brand
For a brand with an active dealer network, a workshop can call the dealer and get the correct number in five minutes. For an orphan brand, there is no dealer to call. The parts change record — the document behind this index — is the only authority. That is why GNSGO publishes the interchange code on every part page: it is the answer to the question no dealer is left to answer.
6. The question every workshop should ask
Before ordering, ask: "has this number been superseded, and what is the interchange code?" If the answer is A→B, order B. If A↔B, either is fine. If A≠B, stop and double-check the VIN. GNSGO includes this information on every part page in this index — 264 references have a recorded replacement, and 771 references themselves replace an earlier number.