Piaggio 138865 Gearbox Cover with P.I. – Vespa PX 125, 150 and 200 E
Code: 138865
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The gearbox support cover with P.I. original Piaggio 138865 is the cover that encloses the gearbox selector support on the Vespa PX. In the official Piaggio spare parts catalog, it is position 1 on the “Gear selector” diagram with the designation “COPERCHIO SUPP.CAMBIO CON P.I.”: the acronym P.I. stands for particolari incorporati (incorporated parts), meaning the cover comes complete with its riveted elements and does not need to be assembled. It is a stamped and galvanized steel sheet metal, shaped, with a stiffening rib and a slot for passage.
✓ Strengths
- Original Piaggio spare part, code 138865.
- With incorporated parts: the riveted element is already mounted on the cover, ready for use.
- Stamped galvanized steel: sheet metal treated against corrosion, suitable for a component exposed under the body.
- Original shape: holes, slot, and rib correspond to the PX housing, without adaptations.
- One code only for PX 125, 150, and 200 E.
Technical features
| Original code | 138865 |
| Official designation | Coperchio supp.cambio con P.I. |
| Catalog diagram | “Gear selector”, position 1 |
| Function | Cover for closing the gearbox selector support |
| Material | Stamped steel |
| Finish | Galvanized |
| Incorporated parts | Yes, riveted element already mounted |
| Gearbox type | Manual |
| Mounting | Direct, on the original housing |
| Spare part type | Original Piaggio (OEM) |
| Package contents | 1 gearbox support cover with incorporated parts |
Vehicle compatibility
| Model | Version | Years | Market |
|---|---|---|---|
| Vespa PX 125 | E | 1977-2016 | EMEA |
| Vespa PX 150 | E | 1977-2017 | EMEA |
| Vespa PX 150 | E (US) | 1977-2017 | USA |
| Vespa PX 200 | E | 1977-2005 | EMEA |
List taken from the official Piaggio spare parts catalog (B2B area). In case of doubt, send us your vehicle's frame number: we will verify compatibility before shipping.
Who is it perfect for?
For those restoring a PX and find the gearbox support cover rusted, dented, or with a loose riveted part. It's a small piece that's only noticed when it's missing: without it, the selector support remains exposed and gets water and dirt. Replacing it with an original part is inexpensive and completes the job correctly, without having to improvise with hand-cut sheet metal.
Frequently asked questions
What does "con P.I." mean?
P.I. stands for particolari incorporati (incorporated parts): the cover comes complete with the riveted element on the sheet metal, so you don't have to mount or retrieve anything from the old part.
What is the exact name in the official catalog?
"Coperchio supp.cambio con P.I.", code 138865. It appears at position 1 on the "Gear selector" diagram.
How do I know if it's right for my Vespa?
Check the engine size, version, and year in the compatibility table above: it is derived from the official Piaggio spare parts catalog. If you have any doubts, write us your frame number and we will verify it.
Is it also suitable for the PX 200?
Yes. The same code serves the PX 125 E, PX 150 E — including the US market version — and PX 200 E.
Are gaskets and screws included?
No. You purchase only the cover with its incorporated parts; the other components of the "Gear selector" diagram are separate codes.
Is it original or aftermarket?
It is an original Piaggio spare part, code 138865, sold by an authorized dealership.
Compatible vehicles
- Piaggio Vespa PX 125 (Classic) (1977-2016)
- Piaggio Vespa PX 150 (Classic) (1977-2017)
- Piaggio Vespa PX 200 (1977-2005)
Not sure it fits? Contact us
Frequently asked questions
Shipping times +
Shipping within 24-48 working hours in Italy. Tracking via SMS/email. Free pickup at our store in Cercola (NA), ready within 1 hour.
Returns and refunds +
You have 14 days from delivery to return the item without giving a reason. Free returns for faulty items. Full details
Payment methods +
Credit cards (Visa, Mastercard, American Express), PayPal, Apple Pay, Google Pay, Shop Pay, Klarna (pay in 3) and cash on delivery.
Warranty and authenticity +
All products come with a 24-month legal warranty. We are an Official Piaggio Group Dealer: original spare parts are certified with a verifiable OEM code.
Technical support +
Our technical team is available on WhatsApp +39 392 456 1248 Mon-Fri 9:00–13:30 / 14:30–18:00 (Italian time), or by email.